03 zcna-ptn zxctn 6200 product introduction 222p

ZXCTN 6200 ProductIntroduction

Training Manual

Publishing Date (MONTH/DATE/YEAR) : 2013–01–15

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Contents

ZXCTN 6200 Product Introduction................................ 1

1 Overview................................................................... 21.1 Product Appearance ............................................................... 2

1.2 Product Positioning ................................................................ 2

1.3 Product Feature..................................................................... 3

2 Product Structure...................................................... 72.1 Logical Structure ................................................................... 7

2.2 Hardware Structure ............................................................... 8

2.3 Software Structure ................................................................ 9

3 Service .................................................................... 133.1 Service Processing Model.......................................................13

3.2 Service Processing Capability .................................................14

4 Function .................................................................. 154.1 MPLS-TP..............................................................................15

4.2 MPLS ..................................................................................15

4.2.1 MPLS Basic Protocols ....................................................16

4.2.2 MPLS L2 VPN ...............................................................17

4.2.3 MPLS L3 VPN ...............................................................19

4.3 L2 ......................................................................................22

4.4 L3 ......................................................................................26

4.4.1 Three-layer Basic Functions ...........................................26

4.4.2 OSPF Protocol ..............................................................27

4.4.3 IS-IS Protocol ..............................................................28

4.4.4 BGP Protocol................................................................28

4.4.5 GRE Protocol ...............................................................29

4.5 OAM Function ......................................................................30

4.5.1 MPLS-TP OAM Functions................................................31

4.5.2 MPLS OAM Function ......................................................33

4.5.3 Ethernet OAM Functions ................................................34

4.6 QoS Function .......................................................................37

4.7 System Clock and Time Functions ...........................................39

4.7.1 IEEE 1588 V2 Clock Application ......................................41

4.7.2 IEEE 1588 ACR Application ............................................42

4.7.3 Synchronizing Ethernet Application .................................43

4.8 Security Management ...........................................................44

4.8.1 Business Security .........................................................44

4.8.2 Equipment Security ......................................................45

4.8.3 Authentication Management...........................................46

4.8.4 User Authority Management...........................................47

5 Protection ............................................................... 495.1 Device Protection .................................................................49

5.2 Protection at NNI Side ..........................................................50

5.2.1 IP ECMP Protection .......................................................50

5.2.2 SD Protection Functions ...............................................51

5.2.3 MPLS-TP Static Tunneling Protection ...............................52

5.2.4 MPLS Protection ...........................................................53

5.2.5 FRR Protection .............................................................55

5.2.6 TE Trunk Protection ......................................................58

5.2.7 PW Protection ..............................................................59

5.2.8 Wrapping Protection .....................................................62

5.2.9 Double-loop Dual-node Protection...................................62

5.2.10 RSVP-TE Path-Option Protection ...................................63

5.2.11 RSVP-TE Hot-Standby Protection ..................................64

5.3 Protection at UNI Side...........................................................65

5.3.1 VRRP ..........................................................................66

5.3.2 Multiplexing Section Protection.......................................67

5.3.3 MC-APS Protection........................................................69

5.3.4 LAG and MC-LAG Protection...........................................70

5.3.5 IMA E1 Service ............................................................71

5.3.6 ML-PPP Protection .......................................................72

6 Cabinet.................................................................... 756.1 Cabinet Overview .................................................................75

6.2 Cabinet Structure .................................................................76

6.3 Cabinet Configuration............................................................77

6.4 Indicators on the Cabinet ......................................................78

6.5 Cabinet Structural Specifications.............................................79

7 Power Distribution Box ........................................... 81

8 Subrack ................................................................... 858.1 Structure and Slots of Subrack ...............................................85

8.2 Fan Plug-in Box ....................................................................87

8.3 Dustproof Plug-in Box ...........................................................89

8.4 Technical Specifications of a Subrack.......................................91

9 Boards..................................................................... 939.1 Board Overview....................................................................93

9.1.1 Board Appearance ........................................................93

9.1.2 Relations Between the Boards ........................................95

9.1.3 Board Operating Environment ........................................96

9.2 6200 Switch Control Clock Unit...............................................97

9.2.1 Board Functions ...........................................................97

9.2.2 Front Panel..................................................................98

9.2.3 Indicators....................................................................99

9.2.4 Technical Specifications ...............................................100

9.3 16-Port E1 board with Front interface Board R16E1F ...............101

9.3.1 Board Functions .........................................................101

9.3.2 Front Panel................................................................102

9.3.3 Indicators..................................................................104


9.4 4-Port ATM STM-1 Board R4ASB ...........................................105

9.4.1 Board Functions .........................................................105

9.4.2 Front Panel................................................................106

9.4.3 Indicators..................................................................106


9.5 4-Port Enhanced Gigabit Ethernet Combo interface Board

R4EGC .........................................................................................108

9.5.1 Board Functions .........................................................108

9.5.2 Front Panel................................................................109

9.5.3 Indicators..................................................................110


9.6 4-Port Enhanced Gigabit Ethernet Combo GRE interface Board

R4GCG.........................................................................................112

9.6.1 Board Functions .........................................................112

9.6.2 Front Panel................................................................113

9.6.3 Indicators..................................................................115


9.7 8-Port Enhanced Gigabit Ethernet Electrical interface Board

R8EGE .........................................................................................116

9.7.1 Board Functions .........................................................116

9.7.2 Front Panel................................................................116

9.7.3 Indicators..................................................................117


9.8 8-Port Enhanced Gigabit Ethernet Fiber interface Board

R8EGF .........................................................................................118

9.8.1 Board Functions .........................................................118

9.8.2 Front Panel................................................................119

9.8.3 Indicators..................................................................120


9.9 1-Port Enhanced 10 Gigabit Ethernet Fiber interface Board

R1EXG .........................................................................................122

9.9.1 Board Functions .........................................................122

9.9.2 Front Panel................................................................123

9.9.3 Indicators..................................................................124


9.10 Channelized STM-4 Board R4CSB........................................125

9.10.1 Board Functions .......................................................125

9.10.2 Front Panel ..............................................................126

9.10.3 Indicators................................................................127

9.10.4 Technical Specifications .............................................128

9.11 Gateway Board R4GW .......................................................130

9.11.1 Board Functions .......................................................130

9.11.2 Front Panel ..............................................................130

9.11.3 Indicators................................................................131


9.12 Channelized Pos Board R4CPS ............................................134

9.12.1 Board Functions .......................................................134

9.12.2 Front Panel ..............................................................135

9.12.3 Indicators................................................................136


9.13 8-Port Fast Ethernet Fiber interface Board R8FEF/8-Port Fast

Ethernet Electrical interface Board R8FEI ..........................................138

9.13.1 Board Functions .......................................................138

9.13.2 Front Panel ..............................................................139

9.13.3 Indicators................................................................140


9.14 16-Port T1 board with Front interface R16T1F.......................143

9.14.1 Board Functions .......................................................143

9.14.2 Front Panel ..............................................................143

9.14.3 Indicators................................................................145


9.15 1-Port Gateway Board R1GNE.............................................146

9.15.1 Board Functions .......................................................146

9.15.2 Front Panel ..............................................................146

9.15.3 Indicators................................................................147


9.16 Optical Amplifier Board R1OA .............................................148

9.16.1 Board Functions .......................................................148

9.16.2 Front Panel ..............................................................149

9.16.3 Indicators................................................................149


9.17 6200 -48V Power DC Board RPWD2.....................................151

9.17.1 Board Functions .......................................................151

9.17.2 Front Panel ..............................................................151

9.17.3 Indicators................................................................153


10 Board Typical Application .....................................15510.1 Applied Scenarios of an Ethernet Board................................155

10.2 Applied Scenarios of a R4ASB Board....................................156

10.3 Applied Scenarios of a R4CPS Board ....................................156

10.4 Applied Scenarios of a R4CSB Board....................................157

10.5 Applied Scenarios of a R4GW Board.....................................158

10.6 Applied Scenarios of a R16E1F Board...................................158

11 Interfaces.............................................................16111.1 Service Interface ..............................................................161

11.2 External Interface .............................................................162

12 Networking Application ........................................16512.1 Service Networking Application ...........................................165

12.1.1 MPLS L2 VPN Application ...........................................165

12.1.2 TDM Service Networking Application............................172

12.1.3 ATM Service Networking Application ............................173

12.2 Integrated Service Application ............................................174

12.2.1 Mobile Backhaul .......................................................174

12.2.2 Fixed Mobile Convergence..........................................175

12.2.3 Application at LTE Network Stage................................176

12.2.4 Offload....................................................................177

12.2.5 Application of IP RAN Network....................................178

13 Technical Performance .........................................18113.1 System Performance .........................................................181

13.2 Physical Performance ........................................................184

13.3 Power Consumption Indices................................................185

13.4 Grounding Requirements ...................................................187

13.5 Lightning Protection Requirements ......................................190

13.6 EMC Requirements............................................................191

13.7 Reliability Indexes.............................................................192

13.8 Security Authentication Requirement ...................................193

13.9 Interface indices ...............................................................194

14 Environment Requirements ..................................19914.1 Power Supply Requirement ................................................199

14.2 Operation Environment .....................................................199

14.3 Transportation Environment ...............................................201

14.4 Storage Environment.........................................................202

Glossary ....................................................................205

ZXCTN 6200 ProductIntroductionAfter you have completed this course, you

will be able to:

>> Master System Function and Structure

>> Master System Performance

>> Master Networking and Application

Confidential and Proprietary Information of ZTE CORPORATION 1

ZXCTN 6200 Product Introduction Training Manual

Chapter1 Overview

After you have completed this chapter, you will know:

>> Product Appearance>> Product Positioning>> Product Feature

1.1 Product Appearanceis the carrier-class multi-service carrier product introduced by ZTECorporation. It focuses on bearing and transmission of integratedmobile Backhaul and multi-service network.

subrack appearance is shown in Figure 1.

FIGURE 1 SUBRACK APPEARANCE

1.2 Product Positioninglocates on aggregation layer of the metro area. The application ofin the network is shown in Figure 2.

2 Confidential and Proprietary Information of ZTE CORPORATION

Chapter 1 Overview

FIGURE 2 USE OF IN THE NETWORK

1.3 Product FeatureMulti-Service

Unified CarrierPlatform

is based on all-packet architecture, adopts optimized connec-tion-oriented MPLS-TP transmission technology, and supportsSVLAN enhanced Ethernet technology.

It adapts multi-service bearing through PWE3 to meet devel-opment of full services.

SynchronousNetwork

adopts G.8261 and 1588 V2 technologies to implement accu-rate insertion and extraction of timeslot in 1588 protocol so asto improve time synchronization accuracy.

supports to flexibly configure border clock and transparenttransmission clock and supports out-of-band Pulse Per Sec-ond (PPS)+ Time of Delivery (ToD) interface and Ethernet syn-chronous interface.

supports synchronous Ethernet networking application. EachNE can be locked to the same clock source, thus realizing syn-chronization in the whole network.

supports Multilink-Point to Point Protocol (ML-PPP) line ex-tracted synchronous clock. The output clock of ML-PPP E1comes from the synchronous clock of the bearer network.

adopts Synchronization Status Message (SSM) protocol andBest Master Clock (BMC) algorithm to implement automaticprotection switching of clock and time link and guarantee reli-able transmission of synchronous signals.



Point-to-PointQoS

provides point-to-point Quality of Service (QoS) managementfunction to provide delay, jitter and bandwidth required by dif-ferent services.

supports DiffServ(Differentiated Service)-based QoS schedul-ing, implements traffic classification and labeling according toport, Virtual Local Area Network (VLAN), 802.1p, DifferentiatedServices Code Point (DSCP)/Type of Service (ToS), Medium Ac-cess Control (MAC), and Internet Protocol (IP) address, sup-ports traffic monitoring, queue scheduling, congestion controland traffic shaping of service flows, meets user-level multi-ser-vice bandwidth control, and provides guarantee to client's re-finement operation.

Hierarchical OAM supports Operation, Administration and Maintenance (OAM) ofMPLS-TP, Multi-Protocol Label Switching (MPLS) and Ethernet.

provides hardware mechanism-based hierarchical monitoringand implements fast fault detection and location, performancemonitoring and point-to-point service management.

supports continuous and on-demand OAM and ensuring car-rier-class service quality.

Logical link, PW, segment layer, and tunnel-based various hier-archical OAM makes network operation more transparent andoperation & management more convenient.

Multi-ProtectionMechanism

Device owns perfect device protection, network-class protectionand port protection functions.

Device protection provided by are shown below:

1+1 hot backup of main control switch clock card

1+1 hot backup of power supply card

Network-class protection

IP (Equal-Cost Muti-Path routing)ECMP protection

Fast Reroute (FRR) protection, including IP FRR, LDP FRRand Resource ReSerVation Protocol - Traffic Engineering(RSVP-TE) FRR.

Label Switched Path (LSP) protection based on MPLS-TP

PW protection based on MPLS-TP, including PW dual-hom-ing protection, Multi-Segment Pseudo Wire (MS-PW) pro-tection and Dual Node Interconnection (DNI-PW) protec-tion.

Wrapping protection based on MPLS-TP

Dual-ring and dual-node protection based on MPLS-TP

Hot-standby protection based on RSVP-TE.

Path-Option protection based on RSVP-TE.

Port protection

Link Aggregation Group (LAG) protection and Multi-ChassisLink Aggregation Group (MC-LAG)

Inverse Multiplexing over ATM (IMA) E1 protection

MC-APS protection

VRRP protection


Chapter 1 Overview

ML-PPP protection

Multiplex Section Protection (MSP) protection

Compatibility Device adopts open technical platform to integrate traditionaltransmission and data networks.

System adopts flexible design, which applies to developmentof various transmission standards and provides support toevolvement of service network.

NM System adopts ZTE unified NM platform NetNumen U31 R22.


Chapter2 Product Structure


>> Logical Structure>> Hardware Structure>> Software Structure

2.1 Logical StructureFunction units of includes service interface unit, service adaptingunit, service switch unit, main control/clock unit, system interfaceunit, power unit and dissipation unit.

Function units of are shown in Figure 3.

FIGURE 3 FUNCTION UNIT

Service interfaceunit

Service interface unit provides various service interfaces, suchas TDM (Time Division Multiplexing) E1/T1, TDM STM-1/STM-4,FE/GE (Gigabit Ethernet)/10GE, and ATM (Asynchronous TransferMode) STM-1 interfaces.

Service adaptingunit

Service adapting unit adapts the services by using PWE3 technol-ogy.

Service switchunit

Service switch unit implements the packet switch between eachservice processing unit.



Main control/Clo-ck/Time/Electro-mechanical man-

agement unit

Main control unit: works as the core unit of the system, imple-ments the main functions on management platform and controlplatform. Physically, the main control unit manages the controlinformation via the Ethernet communication network betweeneach unit.

Function of management platform: implements configura-tion, management, maintenance for each board of the sys-tem.

Control platform: deals with protocol, alarm, switch strat-egy. Provides the strategy for the connection, configurationand protection.

Clock/Time unit: provides unified clock signal for the wholesystem, and implements 1588 time synchronization.

Electromechanical management unit: realize the managementof board basic information in the system, which includes con-trolling board power supply power-on and resetting, inquiringthe manufacturing information of board, operating the journal,and viewing the temperature.

System interfaceunit

System interface unit provides the following interfaces:

Clock/time interface

Alarm input/output interface

EMS interface

LCT interface

Debugging interface

Power unit Power unit provides power supply for all of the boards. It supportslightning surge immunity, filtering, inverse connection protection,over-current protection and 1+1 power supply protection.

Dissipation unit Dissipation unit is composed of fan and monitoring unit, providingforcible dissipation. The speed of fan can be adjusted intelligentlyaccording to the system temperature.

2.2 Hardware StructureThe hardware structure of is shown in Figure 4.

FIGURE 4 HARDWARE STRUCTURE

1. Mounting lug2. Fan area

3. Grounding terminal of subrackprotective ground


Chapter 2 Product Structure

4. Power board area5. Service line card area6. Antistatic wrist strap jack7. Master control board area8. Block strip of cable

Table 1 lists the components of the subrack.

TABLE 1 SUBRACK COMPONENTS OF

No. Name Description

1 Mounting lug Serves for fixing a subrack in the cabinet.

2 Fan area Serves for plugging the fan board toguarantee good condition of heat dissipation.

3 Groundingterminalof subrackprotectiveground

Serves for connecting protective ground cableto guarantee good condition of equipmentelectricity.

4 Power boardarea

Serves for plugging power boards to supplypower for the equipment.

5 Service linecard area

Serves for inserting service line cards andproviding external service interfaces.

6 Antistatic wriststrap jack

Serves for plugging the antistatic wrist strap.

7 Master controlboard area

Serves for inserting master control board andproviding service switching.

8 Block strip ofcable

Serves for assisting the cabling of fiber andcable.

2.3 Software StructureAs shown in Figure 5, system software adopts layered structuredesign with each layer implementing specific function and provid-ing service to the upper layer. And it is divided into three planes:

management plane

control plane

data plane



FIGURE 5 SOFTWARE STRUCTURE DIAGRAM

The following sections emphatically introduce the main controlsoftware and board software.

Main ControlSoftwareStructure

As shown in Figure 6, the structure of the main control software isdivided into the following modules:

FIGURE 6 STRUCTURE OF MAIN CONTROL SOFTWARE

Platform OAM sub-system: platform OAM sub-system isresponsible for inter-communication between the platformmanagement interfaces (such as CLI (Command Line Inter-face)/SNMP (Simple Network Management Protocol)/TELNET(Telecommunication Network Protocol)) and service man-agement module, meanwhile, it responsible for save andrestoration of part of EMS log and configuration data.


Chapter 2 Product Structure

EMS management module: implements the inter-communica-tion between Qx interface and service management module,meanwhile, it implements EMS management, alarm and per-formance management, EMS data saving, upload and down-load.

DCN (Data Communications Network) module: unified man-ages the establishment and maintenance of signalling path.

Service management module: manages the service configu-ration, meanwhile performs the inter-communication betweenprotocol and supporting module.

IP protocol module: includes TCP (Transfer Control Protocol)/IPprotocol of platform and the operating system itself.

L2/L3 protocol module: L2/L3 protocol of platform

OAM and protection module: includes OAM protocol and rele-vant protocols based on MPLS-TP, MPLS and Ethernet.

Supporting module: performs the inter-communication be-tween service management module, protocol stack module,OAM and protection module, and driving module.

Driving module: configures the chip directly.

Board SoftwareStructure

As shown in Figure 7, the structure of board software is dividedinto the following modules:

FIGURE 7 STRUCTURE OF BOARD SOFTWARE

Board agent program: implements the inter-communicationwithin the main control board.

Service processing module: implements the service configura-tion and alarm&performance processing.

Supporting module: implements the inter-communicationbetween the service processing module, IP protocol stackmodule, special protocol module for board running and drivingmodule.

Driving module: implements the configuration for the chip.


Chapter3 Service


>> Service Processing Model>> Service Processing Capability

3.1 Service Processing ModelService processing model of is shown in Figure 8.

FIGURE 8 SERVICE PROCESSING MODEL

insert the Ethernet service, TDM service, ATM service from CE de-vice through UNI, and adapt the inserted services to transformthem to Ethernet, ML-PPP or PPP packet format through NNI fortransmission.

Physical InterfaceLayer

Physical interface layer provides with external physical interfaceand implements receiving/sending of client services.

ServiceProcessing Layer

Service processing layer processes different services according todifferent service types and service rules.

Ethernet service processing:

Clock, OAM and Qos processing.

Determine the minimum MFDFR according to UNI orUNI+CE VLAN.

TDM service processing:



Accomplish the structured emulation or non-structured em-ulation processing.

Based on encapsulation delay, accomplish the encapsula-tion and deencapsulation from TDM to packet service.

Upload or download packet service to the correspondingPW and tunnel.

ATM service processing:

Accomplish filtering VPI (Virtual Path Identifier)/VCI (Vir-tual Channel Identifier).

Accomplish VPI/VCI switching.

Based on mapping and cascade configuration, accomplishthe encapsulation and deencapsulation from ATM to packetservice.

Upload or download packet service to the correspondingPW and tunnel.

PW ProcessingLayer

It encapsulates all simulation services to PWE3 packets or deen-capsulates services from PWE3 packets to restore them to differentsimulation services. Service is identified through PW label. Eachservice corresponds to one PW label uniquely, that is each serviceonly corresponds to one PW channel.

Tunnel ProcessingLayer

It provides path for forwarding packet service.

Each tunnel can carry multiple PW's and PW's in MPLS-TP tunnelcan be distinguished through PW labels.

Link TransportLayer

This is the link layer in which user services are delivered over net-work. It provides data link for tunnel layer.

3.2 Service Processing CapabilityService processing capability is shown in Table 2.

TABLE 2 SERVICE PROCESSING CAPABILITY

Backplane Capacity Switching Capacity Packet forwardingrate

44 Gbps 44 Gbps 65.47 Mpps


Chapter4 Function


>> MPLS-TP>> MPLS>> L2>> L3>> OAM Function>> QoS Function>> System Clock and Time Functions>> Security Management

4.1 MPLS-TPAs for the capacities of to support MPLS-TP, refer to Table 3.

TABLE 3 MPLS-TP FUNCTIONS

Function Description

MPLS-TPfunction

MPLS-TP PW function– Adaption of Ethernet service to PW– Adaption of ATM service to PW– Adaption of TDM service to PW

MPLS-TP LSP function– Mapping of multiple PWs to LSP– LSP label switching– MPLS-TP message out-tunnel processing

MPLS-TP Section function– Mapping of LSP to Section– Adaption of MPLS-TP message to the data link layer

MPLS-TP tunnel routing function

MPLS-TPOAMFunction

Supporting layered OAM functions: PW OAM, LSP OAM,and Section OAM

Protection function based on MPLS-TP

4.2 MPLScan implement seamless convergence of IP and L2 through MPLS.Meanwhile, MPLS technology provides better solutions to the ap-plication of traffic engineering and VPN.



The MPLS architecture of complies with Multiprotocol Label Switch-ing Architecture (RFC 3031).

4.2.1 MPLS Basic Protocols

LDP Protocol supports LDP protocol, refer to Table 4.

TABLE 4 LDP PROTOCOL FUNCTIONS


LDP discoverymechanism

Basic discovery Extend discovery

LDP sessionestablishmentmechanism

Bind FEC and label by LDP, and announce theinformation to the neighbor LSR to establish LSP.

LDP basicinformation

Label mapping information, label releaseinformation, label callback information, labelrequest information and notification information,etc.

Loop detectionmechanism

Used to detect LSP loop and avoid label requestloop

Label notificationmechanismunder the DU(DownstreamUnsolicited) mode

LSR can send FEC (Forwarding EquivalenceClass) label mapping information without thelabel request information from upstream LSR(Label Switch Router).

Label keepingmechanism underLiberal mode

Under the DU mode, if the label mappinginformation received by LSR is not from thenext-hop, LSR still records the label but nottransfers the entry.

Label controlmechanism underIndependent mode

LSR can transfer FEC label mapping informationto the upstream anytime.

LDP MD5authenticationfunction

Adopt MD5 encryption authentication, whichcomplies with RFC-3036 requirements.

LDP GR function adopts LDP GR function to solve the problemof label data transfer, which is caused by therestart of LDP control layer.

RSVP-TE Protocol supports the RSVP-TE functions as following:

Basic information and processing mechanism of RSVP

Soft status mechanism of RSVP

RSVP-TE reserved resource of the Shared-Explicit (SE) style

RSVP-TE is an extended definition and process in order to es-tablish TE LSP.

LSP fresh mechanism


Chapter 4 Function

Make Before Break (MBB) mechanism

Link coloring function

RSVP-TE LSP Precedence and Pre-emption mechanism

RSVP-TE LSP optimization function

MD5 authentication function

Confined routing calculation function

Interface TE bandwidth management function

Inter-domain RSVP-TE

MPLS DS-TE function

RSVP-TE GR function

4.2.2 MPLS L2 VPN

MPLS L2 VPN refers to transparently transmit the user's layer 2data over the MPLS network. supports the following L2 VPN:

VPWS Virtual Private Wire Service (VPWS) is used to provide point-to-point VPN service transmission service. The PE equipment of theMPLS network accesses the user service of the CE equipment. Af-ter being encapsulated by the PE equipment, the user service istransparently transmitted in the MPLS network to the destination.

The typical networking of the VPWS is as shown in Figure 9.

FIGURE 9 VPWS TYPICAL NETWORKING DIAGRAM

VPLS Virtual Private LAN Service (VPLS) is a multipoint-to-multipointlayer 2 VPN technology which integrates superiorities of the Eth-ernet technology and MPLS technology. VPLS is the simulationof the traditional Local Area Network (LAN) function. Its aim isto connect multiple disperse Ethernet sites in regions through theoperator's MPLS backbone network, so that they feel like workingin the same LAN.

The typical networking diagram of VPLS is shown as in Figure 10.



FIGURE 10 VPLS TYPICAL NETWORKING DIAGRAM

H-VPLS The VPLS mode requires full connection between PSs. Therefore,if the VPLS network is in large scale, the number of PWs is hugeand the PW signaling overhead is great. The network managementand expansion will be complicated.

As shown in Figure 11, the H-VPLS divides the PE into UPE andNPE.

FIGURE 11 H-VPLS NETWORKING DIAGRAM

As the user's Multi-Tenant Unit (MTU) accessing the VPN, the UPEis used to connect the CE and the service provider's network.

The NPE is located at the core domain edge of the VPLS network,providing transparent transmission of user packets over the core


Chapter 4 Function

network. The UPE needs no full connection with all NPEs, but onlyfull connection between NPEs. Through hierarchy, the H-VPLS de-creases the number of PWs and the burden of PW signaling.

MS-PW Multi-Segment Pseudo-Wire (MS-PW) refers to multiple segmentpseudo wires between the UPE and UPE. The scenario of MS-PW isshown in Figure 12.

FIGURE 12 SCENARIO OF MS-PW

MS-PW has the following application solutions:

The source PE and destination PE of the service are not in thesame AS. The signaling connection or tunnel cannot be estab-lished between the two PEs.

The signaling mechanisms of the service's source PE and des-tination PE are different. For instance, one PE end runs theLDP, and the other end runs the RSVP.

If the access equipment can run the MPLS yet cannot set upa mass of LDP sessions, User Facing Provider Devices (UFPE)can serve as UPE and the high-performance equipment Switch-ing PE (SPE) can serve as the switching node of LDP sessions,similar to the signaling reflector to achieve the tunnel mergeof pseudo wires.

4.2.3 MPLS L3 VPN

PE device supports MPLS L3 VPN. Each PE establishes VRF tablefor each VPN, any client or site of the VPN can only access the



VRF table of this specified VPN. So the routings and transfers ofdifferent client signals can be separated from each other.

L3 VPN AccessType

supports the L3 VPN access types as followings:

Access Type Description

Based on VLAN Different VLAN sub-interface of a samephysical interface can access different userservices.

Based on L2 VLAN The device creates a virtual Ethernet portgroup for each accessed L2 VPN and thecorresponding L3 VPN. Different L2 VPNscorrespond to different virtual Ethernetport groups. Therefore, the device canaccess to multiple L2 VPN services.

Based on Ethernetphysical port

Different Ethernet physical port can accessdifferent user services.

L3 VPN TunnelTypes

supports the L3 VPN tunnel types as followings:

RSVP-TE tunnel: adopts RSVP-TE signalling protocol and sup-ports traffic engineering.

LDP tunnel: adopts LDP signalling protocol and does not sup-port traffic engineering.

Static tunnel: can be configured by management platform.

Inter Communi-cation Mode Be-tween PE and CE

supports the inter communication modes as followings:

Based on static routing

Based on OSPF protocol

Based on BGP protocol

Based on IS-IS protocol

Cross-DomainMPLS VPN

Cross-Domain MPLS VPN is used to release route message acrossthe links between providers’ networks.

supports the following types of cross-domain MPLS VPN:

Cross-domain MPLS VPN Option A

Option A is also called back-to-back cross domain.

That is, the edge router ASBR of one of AS domain is PE, andthe edge router Autonomous System Boundary Router (ASBR)of the other AS domain is CE. As shown in Figure 13, ASBR1works as PE device of AS1. ASBR2 is considered as CE devicewhich connects with ASBR1. Similarly, ASBR2 works as PE de-vice of AS2. ASBR1 is considered as CE device which connectswith ASBR2.


Chapter 4 Function

FIGURE 13 CROSS-DOMAIN MPLS VPN OPTION A

Cross-domain MPLS VPN Option C

Option C is also called multi-hop MP-EBGP cross domain. Thatis, the multi-hop EBGP is used between source PE and destina-tion PE to transmit label VPN-IPv4 route message, and EBGPused to distribute label IPv4 route message. As shown in Figure14, ASBR1 works as PE device of AS1. ASBR2 is considered asCE device which connects with ASBR1. Similarly, ASBR2 worksas PE device of AS2. ASBR1 is considered as CE device whichconnects with ASBR2.

ASBR does not maintain or publish the VPN-IPv route, but it hasto maintain the IPv4 host routes marked by the PE router withinits own AS domain. ASBR uses EBGP to assign these markedIPv4 host routes to other ASs. The ASBRs of the neighboringASs assign the marked IPv4 host routes within their own ASdomains to other ASs. In this way, a marked switching pathis created between the ingress PE router and the egress PErouter. Finally, the PE routers of different AS domains create amulti-hop EBGP connection, and exchanges the VPN-IPv4 rout-ing through this connection.



FIGURE 14 CROSS-DOMAIN MPLS VPN OPTION C

If the P router in AS area contains a PE router route, the multi-hop MP-EBGP can opera normally. Otherwise, the data packetsneed to be packed by the ingress PE router with the three layerlabels as below:

The bottom layer label is assigned by the egress PE, corre-sponding to the data packet destination address in a spe-cific VRF.

The middle layer label is assigned by ASBR, correspondingto egress PE route.

The out layer label is assigned by the ingress PE IGP next-hop, corresponding to ASBR route.

L3 VPN GR supports L3 VPN GR function.

GR is a redundancy technique. When the route protocol restarts,the devices using GR can transmit the packet normally, to ensurethat the key services are not interrupted. L3 VPN GR is a GR tech-nique based on VPN private route.

4.3 L2Port Basic

Ethernet FunctionTABLE 5 PORT BASIC ETHERNET FUNCTION SUPPORTED BY

Functions Descriptions

Port BasicEthernet Function

Full-duplex mode at the port Flow control function based on IEEE 802.3x

Pause frame mechanism under the full duplexmode

Jumbo frame Storm suppression function based on port or

specified speed control policy


Chapter 4 Function

MAC Functions TABLE 6 MAC FUNCTIONS SUPPORTED BY


MAC AddressLearning

Independent Vlan Learning (IVL) MAC addresslearning mode.

In IVL mode, each VLAN has its unique MACaddress table, and does not share addresstable with other VLANs.

Based on interface, enable or disable MACaddress learning function.

Based on interface, MAC address table entriesnumber limiting function.

Dynamic MAC address aging function, the usercan configure the aging time manually.

MAC AddressFiltering

supports “MAC+VLAN” address filtering mode, canfilter the source and destination MAC address.

MAC AddressBinding

supports “interface＋MAC＋VLAN” MAC addressbinding mode.

MAC AddressShow

The MAC address show mode supported by areshown below:

Interface based mode. VLAN based mode.

VLAN Function TABLE 7 VLAN FUNCTIONS SUPPORTED BY


VLAN Type Based on interface PVID，interface PVIDranges from 1 to 4094.

Based on packet 802.1Q tag.

VLAN Mapping（VLANtranslating）

Based on input interface. Based on output interface.

STP Function TABLE 8 STP TYPES SUPPORTED BY

STP Type Description

SSTP Single Spanning Tree Protocol: IEEE802.1D

RSTP Rapid Spanning Tree Protocol: IEEE802.1w

MSTP Multiple Spanning Tree Protocol: IEEE802.1s

Storm Suppres-sion Function

TABLE 9 STORM SUPPRESSION FUNCTIONS SUPPORTED BY

Type Object Packet

Port-based Broadcast packet

Port-based Multicast packet



Type Object Packet

Port-based Unknown unicast packet

Forwarding controlstrategy

such as non-forwardingand similar broadcastforwarding

unknown multicast packet

Link Aggregation The link aggregation port can functions as a regular port. Linkaggregation provides the following functions:

Adds and deletes the control port to/from the aggregationgroup.

Increases the link bandwidth and provides bidirectional protec-tion for the link.

Provides the fault tolerance capability for the link.

The working modes of link aggregation port refer to Table 10.

TABLE 10 WORKING MODES OF LINK AGGREGATION PORT

Mode Description

Load share mode Each member of link aggregation grouploads the traffic at the same time in order toenhance the link bandwidth. Once the anymember of link aggregation group changesor faults happens on link, the traffic will bereassigned.

HOT/STANDBY mode Only one member of link aggregation grouploads the traffic. The other links are inSTANDBY status. Once the working linkfaults, one of the STANDBY links will becomethe working link to shield the link failure.

Link aggregation modes are as follows:

TABLE 11 LINK AGGREGATION MODES

Mode Description

Manual aggregation The manual Mode refers to manuallydesignating the physical ports contained inthe aggregation port when Link AggregationControl Protocol (LACP) is not running.

Dynamic aggregation The dynamic aggregation mode indicatesLACP protocol determines the physical portscontained in the aggregation port when theLACP protocol is running.

Static LACP aggregation The static mode refers to manuallydesignating the physical ports contained inthe aggregation port when LACP protocol isrunning, sending, receiving and processingLACP packet.


Chapter 4 Function

supports multi-board and multi-device link aggregation in UNI, andmulti-board link aggregation in NNI.

Mirroring supports the following mirroring mode:

TABLE 12 MIRRORING MODES SUPPORTED BY

Mode Function Description

Based on input flow

Based on output flow

Portmirroringmode

Based on input and outputflows

All Ethernet ports can beused as mirroring ports ormirrored ports.

Based on MAC address

Based on VLAN

Flowmirroringmode

Based on filtering with 5element group

-

LLDP Function Link Layer Discovery Protocol (LLDP) is a neighbor discovery pro-tocol based on IEEE 802.1AB, applicable to data link layer.

LLDP encapsulates signals from the local equipment in the formatof Type/Length/Value (TLV) in the Link Layer Discovery ProtocolData Unit (LLDPDU), and sends the signals to the directly con-nected neighbor equipment.

Meanwhile, LLDP saves feedback Link Layer Discovery ProtocolData Units (LLDPDUs) from the neighbor equipment in the formatof MIB. The network management system can master topologychanges and link connections of the layer-2 network by queryingMIB.

Q-in-Q Functions The supports basic Q-in-Q function and Selective Q-in-Q function.These two Q-in-Q functions support the Tag Protocol Identifier(TPID) modification of S-VLAN.

TABLE 13 SELECTIVE Q-IN-Q FUNCTION SUPPORTED BY

Mode Description

1:1 mode Select S-VLAN in accordance with C-VLAN. Whendifferent user input ports of the equipment areencapsulated with messages which have repeated VLANIDs, 1:1 mode is used for isolation after the repeatedVLAN IDs are modified.

1:2 mode Modify C-VLAN first, then add an S-VLAN.

2:1 mode Modify S-VLAN in accordance with C-VLAN+S-VLAN. Itcan be used on core convergence nodes, in order toconverge the service request of the same type fromdifferent users into a service flow, and reduce thequantity of the external equipment interface VLAN.

802.1x Function The 802.1x authentication protocol is a security protocol based onport authentication.



In 802.1x Relay, receives the request message sent by the authen-tication requester and forwards the message to the authenticationserver; the authentication server responds to the request messageand sends the response message; after receiving the responsemessage, forwards the message to the authentication requester.

supports the 802.1x Relay function.

DHCP Function supports DHCP Relay and DHCP Snooping.

TABLE 14 DHCP FUNCTION SUPPORTED BY

Mode Description

DHCP Relay At the LTE stage, each eNodeB needs to be assignedwith an IP address. Normally, the eNodeB and theDHCP server are not in the same network. Here, theDHCP Relay function is needed to achieve IP addressapplication via crossing the network segment.

DHCPSnooping

The equipment running the DHCP Snooping can captureall DHCP protocol packets forwarded by it in thenetwork, and filter untrustworthy DHCP packets throughestablishing and maintaining the DHCP Snooping bindingtable.

IGMP Snooping supports Internet Group Management Protocol (IGMP) snoopingfunction based on flow field and NATIVE Vlan.

IGMP Proxy supports IGMP Proxy. It can terminate the request of downstreamuser, then transfer the request to the upstream user or send thecorresponding multicast source to the downstream user after pro-cessing.

4.4 L3supports the basic protocol of L3 VPN, OSPF routing protocol, IS-ISrouting protocol, BGP routing protocol and GRE protocol.

4.4.1 Three-layer Basic Functions

supports the following three-layer protocols:

TABLE 15 THREE-LAYER PROTOCOLS SUPPORTED BY


Three-layerinterface

supports the following Three-layer interfaces: Three-layer interface based on VLAN Three-layer interface based on ML-PPP Three-layer interface based on VCG Three-layer interface based on GRE Three-layer interface based on Qx


Chapter 4 Function

Function Description Three-layer interface based on DCC

ARP Its basic function is to query the MAC address ofthe destination device through the IP address ofthe destination device, so as to ensure smoothcommunication.

ICMP ICMP is used to transfer control messages betweenthe IP host and the router. Control messages includemessages relevant to the network itself, such asnetwork connection barrier, host reachability, androute availability.

TCP TCP is a connection-oriented, reliable and bytestream-based transport layer communication protocol

UDP UDP is a connectionless transport layer protocol,supplying transaction-oriented simply not reliablemessage transfer service.

Th-ree-layerPro-tocol

VRRP VRRP is a network gateway protection protocol. Onceone of the export network gateway faults, select therouting from the other protection network gateway.

Forwarding the network management and signalingmessages

Forwarding packets at full wire speed

IPv4 UnicastRouteForwarding

Supporting simultaneous look-ups in the hosthardware route table and the optimum matchinghardware route table。Among them, the host hardware route correspondsto the local direct-connection host route, and theoptimum matching hardware route corresponds tothe local non direct-connection host route and theexternal subnet route.

RouteForwardingLoad Sharing

The route forwarding load sharing function can supplyload sharing and forwarding for services and networkmanagement information, to raise the forwardingcapability.

IP FRR IP FRR is a rapid reroute function based on BFD, itperforms rapid route convergence for the IP staticnetwork.

IPv4 StaticRoute

supports to configure static route for the equipmentthrough the command line or network management.

4.4.2 OSPF Protocol

supports the following OSPF functions:

Supports neighbor discovery

Supports broadcast network and non-broadcast network, sup-porting Designated Router (DR) election on broadcast networkand Non-Broadcast Multiple Access (NBMA) network



Supports messages of various protocols

Supports the flooding mechanism of Link State Advertisement(LSA)

Supports inter-neighbor Link-state Database (LSDB) synchro-nization mechanism

Supports the hierarchy over sub-regions to calculate route

Supports protocol debugging

Supports link types of broadcast and Peer-to-Peer (P2P) modes

Supports virtual connection

Supports Stub region and Not-So-Stubby Area (NSSA) region

Supports the Open Shortest Path First–Traffic Engineering(OSPF-TE) extended function

Supports the OSPF (Open Shortest Path First)/OSPF-TE GR(Graceful Restart) function

Supports plain code authentication and Message Digest 5 Al-gorithm (MD5) authentication

Supports the Shortest Path First (SPF) algorithm to calculatethe intra area route

4.4.3 IS-IS Protocol

Intermediate System-to-Intermediate System (IS-IS) is a hierar-chical link-state routing protocol.

supports the following IS-IS functions:

Supports neighbor discovery

Supports hierarchical management by regions

Supports link types of broadcast and P2P modes

Supports the protocol debugging function

Supports the IS-IS-TE extended function

Supports the IS-IS/IS-IS-TE GR function

Supports plain code authentication

Supports the SPF algorithm to calculate the route forwardingtable

4.4.4 BGP Protocol

announces L3 Virtual Private Network (VPN) information in MPLSnetwork. The functions of BGP is as following:


Chapter 4 Function

TABLE 16 BGP FUNCTIONS SUPPORTED BY


Informationtypes

Open, Update, Notification,Keepalive

BGP neighbor Parameter negotiation,establishment and maintenance

IBGPand EBGP Complying with their routingannounce rule

BGP routingattribution

Including Origin beginningattribution, AS routingattribution, Nexthop attribution,MULTI_EXIT_DISC (MED)attribution, local preferenceattribution, Automatic aggregationattribution and aggregatorattribution.

Routingattributioncontrol andpolicy

-

BGP-4 basicfunction

Reflectorfunction

Perform the BGP full connection.

GR negotiation Establishing the neighbor.BGP GracefulRestart (GR)function Study the

routingThe restart node can study therouting before the restart fromneighbor, meanwhile, maturethe transferring table of thetransferring platform.

MP-BGP expansion function ofBGP

Uses the MP-BGP as a signalingprotocol in the BGP/MPLS L3 VPN.Transmits VPN member informationand VPN-IPv4 entries between thePEs to realize the transmission ofVPN routing information of L3 VPNVPN in the backbone network.

BGP MD5 authentication Each neighbor can configure thepassword independently.

Transfer the IPv4 label by BGPprotocol

When establish the LSPinter-domain, transfer the publicrouting with label inside AS or interAS via BGP. Thus, the inter LSP canbe created end to end via BGP, aswell as LDP or RSVP.

4.4.5 GRE Protocol

supports the GRE protocol function. When the equipment needsto feed through the IP network, it can be achieved through theGRE protocol with the IP tunnelling technology. GRE is a tunneling



technology with security capacity. Its application scenario is asshown in Figure 15.

FIGURE 15 GRE APPLICATION SCENARIO

After being encapsulated through the tunnel and then encapsu-lated through the GRE, the service packet in the network is con-verted to the GRE packet and loaded to the IP packet. In this way,the packet is transmitted to the peer-end network via the IP layer.

4.5 OAM Functionsupplies multi-level OAM mechanism, supports MPLS-TP OAM,MPLS OAM and Ethernet OAM, achieves fast fault detection totrigger protection switching, and guarantees the carrier-classservice quality of services.

As shown in Figure 16, the MPLS-TP divides the OAM into five lay-ers, namely access layer, service layer, PW layer, tunnel layer, andsegment layer. The PW OAM, tunnel OAM, and segment OAM be-long to the network.

PW-layer OAM (PW OAM): monitors the connections and per-formance of various services and provides good conditions forend-to-end service management.

Tunnel-layer OAM (Tunnel OAM): monitors and protects the LSPlayer, and avoids performance degradation caused by increas-ing number of OAM services.

Section-layer OAM (Section OAM): provides ring network pro-tection and saves bandwidth.


Chapter 4 Function

FIGURE 16 OAM IMPLEMENTATION MECHANISM

4.5.1 MPLS-TP OAM Functions

supports the Operation, Administration and Maintenance (OAM)function at MPLS-TP section layer, tunnel layer, and PW layer. Itprovides end-to-end fault management functions, fault locatingfunctions, performance monitoring functions, and other OAM func-tions.

Fault ManagementFunction

For MPLS-TP fault management functions, refer to Table 17.

TABLE 17 MPLS-TP OAM FAULT MANAGEMENT FUNCTIONS

Function Type FunctionDescription

Application

Checking continuity.

Checking errorcombination.

Checking abnormalMEP.

Continuity andconnectivity Check(CC)

Checking abnormalperiod.

Applicable to OAM atsection layers, tunnellayers, and PW layers.




Application

Alarm IndicationSignal (AIS)

Checking alarmindication signals.

Applicable to OAMat section layers andtunnel layers.

Remote DefectIndication (RDI)

Checking remotedefects.


Client Signal Failure(CSF)

CSF detection and CSFframe transmission

Applicable to OAM atPW layers.

Fault LocatingFunctions

For MPLS-TP fault locating functions, refer to Table 18.

TABLE 18 MPLS-TP OAM FAULT LOCATING FUNCTIONS


Application

Loopback (LB) Acknowledgingunicast loopback- bidirectionalconnectivity.

Applicable to OAM attunnel layers and PWlayers.

Lock (LCK) Locking packetsending.

Applicable to OAMat section layers andtunnel layers.

Test (TST) MEP is used toconfirm unidirectionalbandwidth and errorrate of peer MEP

Applicable to OAMat tunnel layers, PWlayers and sectionlayers.

Link Tracing (LT) MEP is used to testconnectivity to otherMIP/MEP.

Applicable to OAM attunnel layers and PWlayers.

PerformanceManagement

Functions

For MPLS-TP performance management functions, refer to Table19.

TABLE 19 MPLS-TP OAM PERFORMANCE MANAGEMENT FUNCTIONS


Application

Singleend

Frame LossMeasure-ment (LM)

Two-end

Checkinglocal/remote frameloss.

Checkinglocal/remote frameloss rate.

Checkinglocal/remote erroredsecond, severelyerrored second andunavailable second.



Chapter 4 Function


Application

Checking one-wayframe delay.

One-way

Checking changes ofone-way delay.

Checking two-wayframe delay.

Delay Meas-urement(DM)

Two-way

Checking changes oftwo-way delay.


Other OAMFunctions

For other OAM functions, refer to Table 20.

TABLE 20 OTHER MPLS-TP OAM FUNCTIONS

Function Type Function Description Application

AutomaticProtectionSwitching (APS)

Extracting and insertingAPS packet.


SynchronousStatus Message(SSM)

Used for protectionswitching.


ManagementCommunicationChannel (MCC)

Used for managementdata transmission


SignalingCommunicationChannel (SCC)

Providing control-planecommunicationbetween MEPs


4.5.2 MPLS OAM Function

MPLS OAM functions supported by are listed in Table 21.

TABLE 21 MPLS OAM FUNCTION

Items Functions

LSPPing

LSP Ping is similar to IP Ping.

1. It sends MPLS Echo request packet in LSP.

2. When the packet arrives at the egress, it returns MPLSEcho reply packet at the egress of MPLS domain.

3. When reply packet returns, you can know whether thisLSP can be used for data forwarding or not.

LSPTrace

LSP Trace refers to sending a series of MPLS Echo requestpackets at the starting point of LSP. TTLs of these packetsare one to a certain value. Each node on LSP respectivelyreceives request packet and returns reply packet. Thus, LSPstarting point can collect the information on LSP path



Items Functions

PW Ping PW Ping is similar to IP Ping. Realized by extending LSPPing, PW Ping is a tool which is used to manually detectvirtual circuits connection status. PW Ping defined a seriesof information to test the PW connectivity between PEs.

PWTrace

PW Trace is similar to LSP Trace, but their layers are notsame.

LSP Trace uses LSP to forward MPLS Echo request, whilePW Trace uses PW to forward MPLS Echo request.

PW Trace is classified into single section PW Trace andmulti-section PW Trace.

VRFPing/ VRFTrace

VRF Trace is similar to IP Ping/Trace, and is used to detectthe reachability of L3 VPN private route.

Bidirec-tionalFor-ward-ing De-tection(BFD)

Bidirectional Forwarding Detection (BFD) is a pathconnectivity detection protocol. It is also a simple Helloprotocol which is similar to the Hello protocol used inrouting protocol. Compared to the Hello protocol used inrouting protocol, it can detect faults on the forwarding pathin a short time.

supports the following BFD detection types:

LSP/PW BFD OSPF/IS-IS BFD VRRP BFD TE FRR/IP FRR BFD

4.5.3 Ethernet OAM Functions

Ethernet OAM is classified into the following levels:

Link-level Ethernet OAM (Ethernet in the First Mile (EFM))

Network-level Ethernet OAM (Connectivity Fault Management(CFM))

The EFM supported by is an OAM function based on IEEE 802.3ah.For the detailed function descriptions, refer to Table 22.

TABLE 22 DESCRIPTIONS OF THE EFM FUNCTION


Ethernet OAMdiscovery

Discoveries peer end of the OAM automaticallythrough automatic negotiation at both ends of theOAM.

OAM packet re-ceiving/trans-mitting

Both ends of the OAM exchange data messages byreceiving/transmitting packets.

OAM linkmonitoring

Both ends of the OAM exchange data messagesperiodically, in order to monitor the link connectivityin real time.


Chapter 4 Function


OAM remoteloopback

Controls the forwarding of data messages byenabling the remote loopback function.

OAM variablerequest andresponse

It is used to request and respond the MIB variableof one or multiple remote devices.

With requesting and responding MIB variablesbetween the local devices and the remote devices,local devices can query the MIB variables of theremote devices.

The CFM function supported by the is an OAM function based onITU-T Y.1731/IEEE 802.1ag. For the detailed function descriptions,refer to Table 23 and Table 24.

TABLE 23 DESCRIPTIONS OF THE CFM FUNCTION BASED ON ITU-T Y.1731


EthernetContinuityCheck(ETH-CC)

As an active OAM function, ETH-CC is used to checkthe connectivity between two ME Groups (MEGs), orbetween any two MEG End Points (MEPs) in an MEG.

ETH-CC provides the following features:

Continuity loss check Error combination check Abnormal MEG End Point (MEP) check Abnormal period check

EthernetLoopback(ETH-LB)

ETH-LB is used to check the connectivity between theMEP and the MIP, or between two MEPs.

ETH-LB can be classified into unicast ETH-LB andmulticast ETH-LB.

As an OAM function on demand, unicast ETH-LBis used to verify the bidirectional connectivitybetween the MEP and MIP. When bidirectionalserve or service interruption diagnosis test isimplemented between two MEPs, unicast ETH-LBis also used to detect bandwidth or bit error ratio.

As an OAM function on demand, multicast ETH-LBis used to verify the bidirectional connectivitybetween two peer MEPs.

EthernetLink Tracing(ETH-LT)

As an OAM function on demand, ETH-LT is used tolocate errors and confirm neighbor relations.

EthernetAlarmIndicationSignal (ETH-AIS)

When the MEP detects faults at server layer, ETH-AISis used to suppress all the associated alarms of thepeer MEP, no matter whether there is any connectivitybetween the MEP and its peer MEP.

EthernetRemote DefectIndication(ETH-RDI)

ETH-RDI is an OAM function for exchanging faultsbetween one MEP and its peer MEP. It is used inunicast error management and remote performancemonitoring.




EthernetLock signal(ETH-LCK)

ETH-LCK is used to send the server-layer EMPadministrative lock notification and data service flowinterruption notification to the MEP, so that the MEPcan distinguish normal faults from the server-layerEMP administrative lock.

EthernetTest signal(ETH-Test)

ETH-Test is used in the on-demand unicast serviceperiod, or in the diagnosis test of service interruption,such as bandwidth flow verification, frame lossverification, and bit error verification.

Ethernetframe LossMeasurement(ETH-LM)

Based on implementation modes, ETH-LM can beclassified into dual-end ETH-LM and single-endETH-LM.

Dual-end ETH-LM is an active OAM function usedfor error management.

Single-end ETH-LM is an OAM function ondemand.

Ethernetframe DelayMeasurement(ETH-DM)

As an OAM function on demand, it is used to measurethe frame delay and its variation in the network.Based on implementation modes, ETH-DM can beclassified into Unidirectional ETH-DM and BidirectionalETH-DM.

Unidirectional ETH-DM is used to measure theunidirectional frame delay and its variation.

Bidirectional ETH-DM is used to measure thebidirectional frame delay and its variation

Otherfunctions

Supports Ethernet Automatic Protection Switching(ETH-APS), Ethernet Management CommunicationChannel (ETH-MCC), Ethernet Experiment OAM(ETH-EXP), and Ethernet provider specific OAM(ETH-VSP) functions.

TABLE 24 DESCRIPTIONS OF THE CFM FUNCTION BASED ON IEEE 802.1AG


Global CFMenable/disablefunction

Used to enable/disable the global CFM function.

Maintenancedomain cre-ation/dele-tion/configu-ration

Used to create/delete an maintenance domain, orconfigure maintenance domain parameters.

Maintenancejoint crea-tion/dele-tion/configu-ration

Used to create/delete an maintenance joint, orconfigure maintenance joint parameters.

MEP creation Used to create an MEP.

MIP creation Used to create an MIP.


Chapter 4 Function


Remote MEPconfiguration

Used to configure remote MEP parameters.

MP databasedisplay

Used to display information of the MP database.

ConnectivityCheckMessage(CCM)

Send CCMs periodically to check the continuity.

Loopback (LB) As an OAM function on demand, it sends a unicastrequest to the destination MP (MEP or MIP), andreceives response messages from the destinationMP, in order to confirm the bidirectional connectivitybetween two maintenance points.

Link Tracing(LT)

As an OAM function on demand, it sends a multicastOAM messages, and forwards the message along theroute, in order to locate the fault.

Remote DefectIndication(RDI)

Used to detect remote defects and send the CVframes with RDI.

4.6 QoS FunctionBasic QoSFunctions

has perfect QoS scheduling mechanism and provides high-qualityservice transmission service.

TABLE 25 BASIC QOS FUNCTIONS

Function Function Description

Traffic classification supports port, L2, L3, L4 packet headercontent-based classification, including physicalinterface, VLAN, source MAC address, sink MACaddress, 802.1p, source IP, sink IP address, IPDSCP, port number of application program, andcombination of these classification modes.

Traffic monitoring supports the following traffic monitoringfunctions:

Supports traffic monitoring based on inputport or output port.

Adopts Access Control List (ACL) toimplement flow classification.

Implements Committed Information Rate(CIR), Committed Burst Size (CBS), ExcessInformation Rate (EIR) and Excess BurstSize (EBS) based on flow.

Supports dual token bucket. Supports drop, color-mark and other policy

actions for contracted rate-beyond traffic. Supports color sensitive and color blind

function.




Traffic shaping supports the following traffic shaping functions: Port-based traffic shaping function Priority-based traffic shaping function

Congestionavoidance

supports the following congestion avoidancefunction:

Supports bandwidth control based on queue. Supports packet header congestion

avoidance function. Support self-adaptive threshold

management.

Queue scheduling supports the following queue scheduling modes:

Weighted Round Robin (WRR) Deficit Weighted Round Robin (DWRR)

function. Strict Priority (SP) SP+WRR

Priority mapping ofDS domain

Differentiated Service (DS), refers to a part ofnetwork which is continuous and complies withDifferentiated Service Strategy Management.

Priority mapping of DS domain refers to themapping between the packet priority and PerHop Behavior (PHB) and color.

Prioritymodification

supports the modification of 802.1 priority andIPv4 DSCP priority.

CAC mechanism Connection Administration Control (CAC)refers to a series of actions carried out bynetwork during call configuration phase (orcall renegotiating phase) for making decisionabout whether a connecting request should beaccepted or rejected.

CAC is used to balance newly connected QoS andthe old QoS without influencing the existed QoS.

AdvancedFunctions of QoS

Advanced functions of QoS supported by is listed in Table 26.

TABLE 26 ADVANCED FUNCTIONS OF QOS


Client QoSinformationclassification atPE node

At PE node, the ingress packet can be classifiedby a series of matching conditions of ACL. Thesematching conditions can be the source address,sink address, port number of the packet. Theclassification mode is decided by the user.

Tunnel QoS model supports pipe and short pipe QoS model.


Chapter 4 Function


NNI side, MPLSpriority maps toVLAN priority

When the network passes through L2 Ethernetnetwork, L2 Ethernet network providestransparent L2 connection for gateway device byQ-in-Q encapsulation.

In order to guarantee the QoS end to end, theMPLS priority of gateway device should be mappedto the priority of VLAN, thus, L2 Ethernet networkcan implement differential service. The QoS ofservice can be guaranteed.

supports copying the MPLS EXP priority to VLANpriority at NNI side.

Client service QoSand IPHB, OPHB

supports the mapping between the client serviceQoS, Incoming PHB (IPHB) and Outgoing PHB(OPHB).

LSP QoS and IPHB supports the mapping between the LSP QoS andIPHB.

Mapping fromOPHB totunnel-layer QoS,PW QoS, sectionQoS

supports configuring the mapping from OPHB totunnel, PW, Section QoS at the ingress point andthe middle point of the LSP.

ACL The traffic classification is based on ACL rule. The user can classifythe packet according to the filtering items of ACL. The ACL func-tions supported by are as following:

Supports the filtering mechanism based on port and IPv4/IPv6packet header.

Supports the traffic classification and filtering mechanismbased on VPI+VCI+PORT of ATM.

Supports the filtering mechanism based on input port, outputport and SMARTGROUP.

Supports the ACL rule based on time segment.

Supports the ACL rule based on VPN.

4.7 System Clock and TimeFunctions

Clock Function provides network-level clock synchronization. The system hasmultiple ways in selecting synchronous clock source as systemclock to implement clock synchronization of network.

Supports the following working modes:

Fast pull-in

Tracing

Holdover

Free-run



has the following system clock functions:

TABLE 27 SYSTEM CLOCK FUNCTIONS

Function Clock signal

BITS Supports inputting and outputtingBITS clock signals.

GPS Supports 1PPS+ToD signals.

E1/SDH/Ethernet By E1/SDH/Ethernet interface,transfers the synchronizationclock signals.

IEEE 1588 V2 Supports the 1588 clock source.

(CES) clock Includes adaptive mode,differential mode, and retimingmode

(SSM) information Supports transferring the SSMclock.

Time Function supports the following time transmission function:

Supports the following time synchronization interface:

Interface Description

Ethernet interface

STM-N interface

Supports to transmit absolutetime signal through theSDH/Ethernet interface.

1PPS+ToD interface -

Supports to set clock node type.

Ordinary clock

Border clock

End-to-End (E2E) transparent clock

Peer-to-Peer (P2P) transparent clock

Ordinary clock + E2E transparent clock

Ordinary clock +P2P transparent clock

Supports the configuration of Precision Time Protocol (PTP)port mode.

Master port

Slave port

Passive port

Supports the switching of time format.

Supports time synchronization management function.

Supports the TS protection switchover function.

Supports the delay compensation function.


Chapter 4 Function

4.7.1 IEEE 1588 V2 Clock Application

IEEE 1588 V2 is a kind of Precision Time Protocol (PTP). It is anmaster/slave synchronization system.

IEEE 1588 V2 protocol supports the following working modes:

Ordinary Clock (OC)

Only one port supports the IEEE 1588 V2 protocol. Users needto recover the clock. Ordinary clock can work as a time source,that is master clock equipment, or the slave equipment whichis synchronized by other clock equipment.

Border Clock (BC)

Multiple ports support IEEE 1588 V2 protocol. Users need torecover the clock. It can work as an master/slave clock equip-ment.

Transparent Clock (TC)

The node does not run IEEE 1588 V2 protocol but transpar-ently transmits the clock signal. Clock recovery is not needed.It needs to modify timestamp. It fills the time at which thenode processes one packet in the modification position whenforwarding time packet.

E2E TC

A TC using the end-to-end delay measurement mechanismis used between the master and slave clocks.

P2P TC

A TC that uses the end-to-end delay measurement mech-anism.

There can be only one master clock in one communication sub-net. In the entire system, the optimum clock is Grandmaster Clock(GMC). BMC automatically selects the master clock for each sub-net. In the system with only one subnet, GMC is the master clock.Each system has only one GMC. slave clock keeps synchronouswith master clock.

supports IEEE 1588 V2 protocol and implements clock and timesynchronization. For the typical networking, see Figure 17.



FIGURE 17 SYNCHRONIZATION OF IEEE 1588 V2 CLOCK

4.7.2 IEEE 1588 ACR Application

Adaptive clock recovery (ACR) is a frequency synchronizationfunction of TDMservice. If signals are sent across a middlenetwork (meaning, the third-party network), 1588 frequencyrecovery function must be used to implement clock synchroniza-tion because the middle network does not support synchronousEthernet or 1588 mode. For the application of IEEE 1588 ACRfunction, see Figure 18.


Chapter 4 Function

FIGURE 18 APPLICATION OF IEEE 1588 ACR FUNCTION

4.7.3 Synchronizing EthernetApplication

fully supports G.8261 standard and implements Ethernet clocksynchronization in physical layer.

ZXCTN devices form synchronous Ethernet, which enables syn-chronous Ethernet interfaces to implement synchronization at Eth-ernet physical layer. The typical application is shown in Figure 19.

FIGURE 19 SYNCHRONOUS ETHERNET TYPICAL APPLICATION



In synchronous Ethernet, clock signals of Global Positioning Sys-tem (GPS), Building Integrated Timing Supply (BITS) and otherdevices are synchronized in clock for ZXCTN devices throughoutthe network through synchronous Ethernet interfaces. ZXCTNdevice is connected with Base Transceiver Station (BTS) orWCDMA Base Station (NodeB), and transmits the abstracted clocksignals to BTS or NodeB, BSC and Radio Network Controller (RNC)through synchronous Ethernet interfaces, thus implementingEthernet clock synchronization over the entire network.

4.8 Security Managementsupports the security management for service, device and user.

4.8.1 Business Security

Business security of the can be classified into access security andprotocol security.

Access Security The provides the following functions to ensure the access security:

TABLE 28 ACCESS SECURITY SUPPORTED BY


ACL functions standard ACL extended ACL layer-2 ACL hybrid ACL IPv6 standard ACL IPv6 extended ACL ATM-based ACL ACL interval control

Port binding and portspeed limit

The port binding function includes: input port binding function output port binding function VLAN port binding function SMART GROUP port binding function port rate limiting function

ARP anti-attacking -

MAC addressrestriction

-

Storm suppression Broadcast storm suppression Multicast storm suppression Unknown unicast storm suppression

Protocol Security The provides the following functions to ensure the protocol secu-rity:

Supports MD5 encryption and authentication.

Supports LDP) encryption and authentication.


Chapter 4 Function

Supports SNMP encryption and authentication.

4.8.2 Equipment Security

provides the following functions on equipment security:

TABLE 29 EQUIPMENT SECURITY SUPPORTED BY


Preventing DoSattacks

If the number exceeds the set alarm value,will give out an alarm, shield the IP, and throwaway all the packets from the IP till the alarm isreleased. Thus to resist the DoS attacks.

Preventing BPDUattacks

If detects abnormal traffic in BPDU data packets,it will filter these data packets automatically toprevent BPDU attacks.

Preventing ARPattacks

monitors the number of ARP messages receivedby the same physical interface in a time. If thenumber exceeds the set alarm value, will give outan alarm, and stops processing the packets till thealarm is released. Thus to resist the ARP attacks.

Preventing LANDattacks

can filter SYN packets with attack purpose toprevent the LAND attack and protect the serverhost.

Preventing SMURFattacks

use the CAR to restrict the traffic of ICMP. Thus toprevent SMURF attacks, and to protect the servermachine.

Preventing SYNFLOOD attacks

prevents SYN FLOOD attacks by limiting SYNtimeout time and connection times throughconfiguration.

Preventing PINGFLOOD attacks

When detects the PING FLOOD attack, theequipment filters ICMP packets with attackpurpose to prevent the PING FLOOD attack.

PreventingTeardrop attacks

can filter data packets with overlapped fragmentoffset to prevent the Teardrop attack.

Preventing Ping ofDeath attacks

When detects the Ping of Death attack, theequipment filters PING packets with attackpurpose automatically to prevent the attack.

CPU securityprotection

judges if it is attacked by the CPU uploading rateof protocol packets. It initiates correspondingprotection measures if attacked.




Commandauthority gradedprotection

supports 16 levels of command authorities.Different authority levels are set for differentlogin users. The lower the authority level is, thefewer the available commands are; the higherthe authority level is, the more the availablecommands are. The administrator (the highestlevel, being 15) can set different commandswith different authority levels, which achievescustomized configuration of command authoritiesand provides great ensurance of equipmentsecurity.

Preventingabnormal packetsand error packets

When detects a large number of abnormalpackets and error packets, the equipment filtersthese packets to prevent the attack on the targetsystem.

4.8.3 Authentication Management

To ensure the safe operation of the system, only authenticatedlegal user can log into the Network Element (NE). provides thefollowing authentication functions:

TABLE 30 AUTHENTICATION FUNCTIONS SUPPORTED BY


NE login management Only the user with legal account andpassword can log into the NE.

NE user switching At one client end, only one user canoperate the NE at one time. To operatethe NE by a different user, it needsto switch the user to ensure the datauniqueness.

Forcing the NE user to logout

To avoid the error caused by thesimultaneous configuration of multiple NEusers or prevent other users from illegallylog in the NE, the NE user can force theNE user of a lower level to exit the NE.

Querying the login user onthe NE

Including the login IP address, login timeand login type of the user.

Locking NE user If the wrong password input times of userlogin reaches the preset value, the user'saccount will be locked.

Setting the user blacklist Users in the blacklist are forbidden to loginto the system.


Chapter 4 Function

4.8.4 User Authority Management

Proper arrangement of different NE users' operation rights canachieve normal operations of users over NEs and effectively pro-tect the security of the NE system.

According to different operation limits, NE users are classi-fied into four levels: system monitor, system operator, systemmaintainer and system administrator (from low to high).

According to different network management systems, NE userscan be classified as: Local Craft Terminal (LCT) NE users, Net-work Element Management System (EMS) NE users, and CMDNE users.

NMS supports the following operations:

Creates the NE user, assign user rights and designate the af-filiated department of the user.

Modifies the user name, password, operation limit and affiliateddepartment.

Deletes the NE user.


Chapter5 Protection


>> Device Protection>> Protection at NNI Side>> Protection at UNI Side

5.1 Device Protection1+1 Protectionof Main ControlSwitching Board

can be configured with two main control switch clock boards, andone of them is master, while the other is slave, to provides 1+1protection mode.

When the software or hardware of master board is fault, or it re-ceives master/slave switching indication, master board switchesto slave board.

1+1 protection parameters of the board are described in Table 31.

TABLE 31 1+1 PROTECTION PARAMETERS OF MAIN CONTROL SWITCHINGCLOCK BOARD

Parameter Description

Switching conditions Board hardware/softwarefault

Switching commands aremanually issued

Board is pulled out manually Board reset

Restoration mode Non-return

Protection time <50 ms

1+1 Protection ofPower Board

can be configured with two DC power boards to access 2–channel-48 V power supply to implement 1+1 hot backup. Make sure thatthe device still can work normally if any of the two power boardsis faulty or pulled out by mistake.

Over-currentprotectionfunction

Card over-current protection: After load current of functionalcard exceeds rated current, system will cut off load power sup-ply of functional card. The protection mode is non-restorable.

Device over-current protection: Power board sets protectionpoint according to rated current of the device. When partialcards enable over-current protection, device can still power theother cards normally. When device internal current exceedsrated current of the device, power module enables over-currentprotection and cuts off power supply to the device.



Restore onAC/Power loss

function

supports to save device management configuration information instorage on main board in real time.

In restore on AC/power loss, main board is restored firstly, servicecards access corresponding configuration information from storageon main board and thus services, NM and clock get restored.

5.2 Protection at NNI SideAt the NNI Side, supports the following protection modes:

IP ECMP protection

SD protection

MPLS-TP static 1:1 tunnel protection and MPLS-TP static 1+1tunnel protection

MPLS 1:1 tunnel protection

FRR protection

TE Trunk protection

PW dual-home protection

Wrapping protection

Dual-ring and dual-node protection

RSVP-TE protection, including Path-Option protection and Hot-Standby protection

5.2.1 IP ECMP Protection

supports IP Equal-Cost Multi-Path routing (ECMP). When there areequal-cost multi paths to a destination network segment, the multinext-hops of these paths bind together as an ECMP group, thenthe IP flow to the destination network segment can be carries bydifferent next-hop..

As shown in Figure 20, there are equal-cost multi paths from NodeA to the destination network 192.168.10.1. By IP ECMP, theseequal-cost paths are aggregated together in order to perform re-dundant protection, extend bandwidth and reduce the burden ofthe core node. IP ECMP is applied at core layer.


Chapter 5 Protection

FIGURE 20 SCHEMATIC OF IP ECMP PROTECTION

5.2.2 SD Protection Functions

Signal Degrade (SD) is a protection mechanism for detectingpacket losses of the link. When too many bit errors occur in NEsor channels, signals degrade. If the packet loss ratio exceedsthe configured threshold, the equipment reports SD alarms, andtriggers the protection switching

TABLE 32 SD PROTECTION FUNCTIONS SUPPORTED BY

ProtectionType

Ring-networkSD protection

Applicable to T-MPLS Section (TMS) layer.

With Frame Check Sequence (FCS) function, portsdetect the packet loss of each section span. If thepacket loss ratio exceeds the configured threshold, theequipment reports SD alarms, and propagates theSD alarms to TMS. At the same time, OAM modulereports SD alarms to APS module, and triggers thecorresponding protection switching.

Tunnel SDprotection

Tunnel SD protection provides the following twodetection modes: SD detection through tunnel frame Loss

Measurement (LM) Same as ring-network SD protection, ports detect

SD alarms through FCS function, and propagateSD alarms to TMS.



5.2.3 MPLS-TP Static TunnelingProtection

1:1 Protection In the 1:1 path protection mode, the protection path is for thededicated usage of each work path. The protected work serviceis transmitted by the work path or the protection path. The ser-vice is transmitted to the destination end of the protection domainthrough the work path. The destination end selects to receive theservice on the work path according to the preset constraint rules.

The 1:1 path protection is in bidirectional switching. That is, boththe affected and unaffected connection ways are switched to theprotection path. For bidirectional switching, the Automatic Protec-tion Switching (APS) protocol needs to be enabled to coordinateboth ends of the service path. To avoid the single-point failure,routes should go through the work path and the protection pathseparately.

As shown in Figure 21, the service is transmitted through the work-ing channel from node A to node Z in normal status. There is notservice on the protection channel. When the working channel goeswrong, the service is switched to the protection channel for trans-mission on node A, node Z receives the service on the protectionchannel.

FIGURE 21 1:1 PATH PROTECTION DIAGRAM

1+1 Protection In the 1+1 path protection mode, the protection path is for thededicated usage of each work path. The work path and the protec-tion path are bridged at the source end of the protection domain.The service is transmitted to the destination end of the protectiondomain through the work path and the protection path simulta-neously. The destination end selects to receive the service on the



work path or the protection path according to the preset constraintrules.

The 1+1 path protection is in unidirectional switching. That is, onlythe affected connection way is switched to the protection path. Toavoid the single-point failure, routes should go through the workpath and the protection path separately.

As shown in Figure 22, the service is transmitted through the work-ing channel and the protection channel from node A to node Z innormal status. Node Z selects to receive the service on the workchannel or the protection channel according to the preset con-straint rules. When the working channel goes wrong, Node Z re-ceives the service on the protection channel.

FIGURE 22 1+1 PATH PROTECTION DIAGRAM

5.2.4 MPLS Protection

1:1 Protection As shown in Figure 23 (A), the service is transmitted through thework LSP from the source end to the destination end in normalstatus. There is not service on the protection LSP.

As shown in Figure 23 (B), when the work LSP goes wrong, theservice is switched to the protection LSP for transmission on thesource end, the destination end receives the service on the pro-tection LSP.

Due to permanent merge and double receiving features of the des-tination end in MPLS protection, there is no need to enable the APSprotocol to switch.



FIGURE 23 1:1 LSP PROTECTION DIAGRAM

1+1 Protection As shown in Figure 24 (A), the service is transmitted through thework LSP and the protection LSP from the source end to the desti-nation end in normal status. the destination end selects to receivethe service on the work channel or the protection LSP accordingto the preset constraint rules.

As shown in Figure 24 (B), when the work LSP goes wrong, thedestination end receives the service on the protection LSP.



FIGURE 24 1+1 LSP PROTECTION DIAGRAM

5.2.5 FRR Protection

Fast Reroute (FRR) is a mode to achieve protection by reservingextra resources. Its feature is fast partial protection. It is nor-mally deployed in the network which has high demands on relia-bility. When partial network fails, the FRR can quickly switch tothe Bypass Tunnel, so that the data service is less affected.

FRR protection is deployed in the network with high requirementfor reliability. When the network partially fails, FRR can fast switchto Bypass Tunnel. Thus, there is little impact on the data services.

supports IP FRR, LDP FRR and RSVP-TE FRR protection. IP FRRsupports OSPF and IS-IS protocol, LDP FRR supports LDP protocol,RSVP-TE FRR is based on RSVP-TE.

IP FRR and LDPFRR

IP FRR

IP FRR is a most commonly used IP protection mode. Theslave layer-3 port protects the master layer-3 port. The detec-tion mechanism of IP FRR is Bidirectional Forwarding Detec-tion (BFD), when BFD detects the fault, triggers the switch atlsyer-3 port. IP FRR is deployed at the core layer.

LDP FRR

LDP FRR is based on LDP protocol. After the LDP protocol isconfigured, an FRR table will be formed with MPLS out-labelof master and slave. LDP FRR is performed based on this FRRtable. LDP FRR is deployed at the P device in the core network.



supports FRR link protection and node protection. FRR link pro-tection and node protection principles are as shown in Figure 25and Figure 26 respectively.

FIGURE 25 FRR LINK PROTECTION DIAGRAM



FIGURE 26 FRR NODE PROTECTION DIAGRAM

RSVP-TE FRR RSVP-TE FRR can only protect single node or single link by bypassmode. As shown in Figure 27, multi Bypass tunnel protect theworking tunnel. A is the head node of the working tunnel, B andC are head nodes of Bypass tunnel. Bypass1 protects the linkbetween B and C, Bypass2 protects the link between C and D.



FIGURE 27 SCHEMATIC OF RSVP-TE FRR

5.2.6 TE Trunk Protection

As shown in Figure 28, binds several physical ports with same typeand attribution as a logical port, so as to load sharing in aggre-gation links. Once some member link in the aggregation groupfaults, the traffic on the faulty link will be loaded by the other nor-mal links in order to perform the traffic protection.



FIGURE 28 TE TRUNK PROTECTION

The physical ports supporting TE Trunk protection:

Ethernet port

E1 port

STM-N port

5.2.7 PW Protection

supports PW dual-homing protection, MS-PW protection andDNI-PW protection.

PW Dual-homingProtection

Dual-homing protection is to protect the service transmitted overthe work pseudo wire (PW) by protecting the PW. In case of thework PW fault, peer-end single-point failure or user side link fault,the service will be switched to the protection PW.

supports two dual-homing protection modes:

1+1 dual-homing protection



1:1 dual-homing protection

The typical networking of dual-homing protection is as shown inFigure 29. The PW from P1 to P2 is the work PW, the PW from P1to P3 is the protection PW. P2, P3 and RNC set up the Multi-ChassisLink Aggregation Group (MC-LAG) protection. Normally, the ser-vice of the base station (BTS) and RNC is transmitted through thework PW. In case of P2 failure or the fault in the link between P2and RNC, P1 will receive the CSF alarm indication to trigger pro-tection switching, and the service is then switched from the workPW to the protection PW.

FIGURE 29 DUAL-HOMING PROTECTION DIAGRAM

MS-PW Protection MS-PW protection separates the management area of tunnel,which avoids the inter communication between different routingareas.

As shown in Figure 30, there are multi PWs between UPE and UPE.SPE switches the labels during transferring PW. That is, SPE con-nects the single PW of two sides and switch the PW label.



FIGURE 30 SCHEMATIC OF MS-PW

When the PW100 faults, the service will be switched to PW300.SPE switches the PW label. Then the service will be carried byPW400 and sent to the user side.

DNI-PWProtection

As shown in Figure 31, DNI-PW work with MC-LAG or MC-MSP. Theservices from RNC side and ZXCTN side are bridged by DNI-PW,which not only avoids the OAM MAPPING between ZXCTN side andRNC side, but also solves the power-off problem of the node withMS-PW.

FIGURE 31 SCHEMATIC OF DNI-PW



5.2.8 Wrapping Protection

supports the Wrapping mode ring protection. Its protection prin-ciple is as shown in Figure 32.

FIGURE 32 WRAPPING MODE RING NETWORK PROTECTION DIAGRAM

When the node on the network detects network failure, the faultadjacent node sends the switching request to adjacent nodesthrough the APS protocol.

When a node detects the fails or receives the switching request,the service transmitted to the failure node will be switched to an-other direction (far away from the failure node). When the networkfailure or the APS protocol request disappears, the service returnsto the previous path.

5.2.9 Double-loop Dual-nodeProtection

When ring protection is adopted in the network, tangent loops andintersectant loops can be used for the interworking of two loops.The tangent loops has only one interworking node. Therefore,once the node fails, all span-loop interworking services are in-terrupted. The reliability of inter-loop service protection can beraised through intersectant rings. That is, two rings are intercon-nected through two nodes, so that the span-loop service can betransferred by an intersectant node in case of failure in the otherintersectant node.



The typical networking diagram of double-loop dual-node protec-tion is as shown in Figure 33. supports A-B, A-C, B-D, E-C, E-F, F-Dsingle-point fault or two-point fault double-loop dual-node protec-tion. C-D loop only supports single-point fault double-loop dual-node protection, in which the protection mode is Wrapping and theprotection switching performance is 50 ms.

FIGURE 33 DOUBLE-LOOP DUAL-NODE PROTECTION NETWORKING DIAGRAM

5.2.10 RSVP-TEPath-Option Protection

supports RSVP-TE Path-Option protection.

RSVP-TE Path-Option is used to improve RSVP-TE HotStandby pro-tection. If the working and protection LSPs are both fault, the ser-vice will be interrupted even there is accessible routing. Under thiscondition, multi path-option is necessary.

As shown in Figure 34, Path1 work LSP (A-B-C-D) and Path1 HSBLSP (A-E-F-G-H-D) form a Hot-standby protection group. WhenPath1 work LSP and Path1 HSB LSP are fault, the service can beprotected by Path2 work LSP.



FIGURE 34 SCHEMATIC OF RSVP-TE PATH-OPTION

At the engineering application, multi path-options can be used asthe supplementary protection of RSVP-TE Hotstandby, so as toprovide more effective routing protection.

5.2.11 RSVP-TE Hot-StandbyProtection

supports RSVP-TE Hot-Standby protection.

Configure two LSPs for a service, once the working LSP is fault,the service is switched to the protection LSP, that is RSVP-TE Hot-Standby.



FIGURE 35 SCHEMATIC OF RSVP-TE HOT-STANDBY PROTECTION

As shown in Figure 35, configure working LSP and protection LSPbetween PE1 and PE2. Configure LSP BFD detection on the workingLSP. Normally, the service between PE1 and PE2 is carried by theworking LSP. If the working LSP is fault, the BFD detects the failureand sends alarm indication to PE1. PE1 triggers the switch afterreceiving the alarm. Then the service is switched to the protectionLSP.

Note:

During application, in order to guarantee the BFD can detect thefault as soon as possible, the bidirectional routing of BFD betweenPE1 and PE2 should be consistent.

5.3 Protection at UNI SideAt the UNI side, supports the following protection modes:

VRRP protocol protection

MSP protection

MC-APS protection

LAG and MC-LAG protection

IMA E1 protection

ML-PPP protection



5.3.1 VRRP

See Figure 36, CE is connected to PE1 and PE2. The IP address ofPE1 is 30.1.1.3, and the IP address of PE2 is 30.1.1.4.

FIGURE 36 VRRP WORKING PRINCIPLES

Run the VRRP protocol on PE1 and PE2. PE1 and PE2 make a virtualIP address, 30.1.1.1. When you configure a route on CE, the IPaddress for the next hop is designated to be the virtual addressof VRRP. For CE, the real port IP address is shielded through thevirtual address.

After PE1 and PE2 ran the VRRP, the two devices interchange theRRP packets, and then select one packet as the active device. Onlythe active device responds to the ARP requested packets of thevirtual address 30.1.1.1 during working. In this way, the MACaddress learnt by the CE works as the MAC address of the activedevice so as to forward the packet to the active device.

When the active device is faulty, the after the VRRP packet detectsthe fault, the standby device becomes the active device, and sendsan ARP packet to the virtual address at the same time. When theCE receives the packet, it updates the ARP table and forwards thepath. The service packet is sent to the new active device.



5.3.2 Multiplexing Section Protection

MSP (Multiplex Section Protection) is a kind of SDH protectionmechanism. The switch information is transferred by K1 and K2bytes.

supports three kinds of MSP protection.

MSP 1+1 uni-directional protection

MSP 1+1 bi-directional protection

MSP 1:1 protection

MSP 1+1Uni-Directional

Protection

There is no need to enable APS protocol in the MSP 1+1 uni-direc-tional protection mechanism. Figure 37 shows a service configu-ration from A to B of MSP 1+1 uni-directional protection. Servicesinserted at node A are respectively transmitted through workingpath and protection path to node B. Node B chooses to receivethe services on the working path. When the working path fromA to B is faulty, receiving end of node B is switched to protectionpath and receives services from the protection path. Thus, theservice transmission will not be interrupted, and the services areprotected.

FIGURE 37 MSP 1+1 UNI-DIRECTIONAL PROTECTION

MSP 1+1Bi-Directional

Protection

You need to enable APS protocol in the MSP 1+1 bi-directional pro-tection mechanism. Figure 38 shows a service configuration fromA to B of MSP 1+1 bi-directional protection. Services inserted atnode A are respectively transmitted through working path and pro-tection path to node B. Services inserted at node B are respectivelytransmitted through working path and protection path to node A.



Node A and node B choose to receive the services on the workingpath. When the working path from A to B is faulty, receiving endsof node A and node B are switched to protection path and receiveservices from the protection path. Thus, the service transmissionwill not be interrupted, and the services are protected.

FIGURE 38 MSP 1+1 BI-DIRECTIONAL PROTECTION

MSP 1:1Protection

You need to enable APS protocol in the MSP 1:1 protection mech-anism. Figure 39 shows a service configuration from A to B ofMSP 1:1 protection. Services inserted at node A are transmittedthrough working path to node B. Services inserted at node B aretransmitted through working path to node A. Node A and node Breceive the services on the working path. When the working pathfrom A to B is faulty, transmitting ends and receiving ends of nodeA and node B are switched to protection path and receive servicesfrom the protection path. Thus, the service transmission will notbe interrupted, and the services are protected.



FIGURE 39 MSP 1:1 PROTECTION

5.3.3 MC-APS Protection

In Multi-Chassis Automatic Protection Switching (MC-APS), twoprotected ends distributed in different equipment can provideequipment-level protection. That is, the service will be interruptedonly when both equipment are faulty.

MC-APS protection supported by the is as shown in Figure 40.

FIGURE 40 MC-APS PROTECTION



In Figure 40, MC-APS is configured between PE2, PE3 andBSC/RNC and PW linear protection is configured between PE2,PE3 and PE1 to achieve dual-homing protection of PW.

5.3.4 LAG and MC-LAG Protection

The supports LAG and MC-LAG protection.

LAG Protection As shown in Figure 41, binds multiple ethernet interfaces of thesame attribute to one logical interface, to achieve the load sharingof ethernet signals in each link.

FIGURE 41 LAG PROTECTION DIAGRAM (NORMAL STATUS)

As shown in Figure 42, when a member link in the aggregation linkmalfunctions, ethernet signals in the faulty link are distributed toother normal links to achieve service protection.

FIGURE 42 LAG PROTECTION DIAGRAM (FAULT STATUS)



MC-LAGPprotection

In Multi-Chassis Link Aggregation Group (MC-LAG), multiple phys-ical ports to be bound are distributed in different nodes.

In Figure 43, MC-LAG is configured between PE2, PE3 andBSC/RNC and MC-APS is configured between PE2, PE3 and PE1 toachieve dual-homing protection of PW.

FIGURE 43 MC-LAG PROTECTION DIAGRAM

5.3.5 IMA E1 Service

As shown in Figure 44, binds multiple IMA E1 interfaces of thesame attribute to one logical interface, to achieve the load sharingof IMA E1 signals in each link.

FIGURE 44 IMA E1 DIAGRAM (NORMAL STATUS)

As shown in Figure 45, when a member link in the aggregationlink malfunctions, IMA E1 signals in the faulty link are distributedto other normal links to achieve service protection.



FIGURE 45 IMA E1 DIAGRAM (FAULT STATUS)

5.3.6 ML-PPP Protection

As shown in Figure 46, binds several ML-PPP E1 ports with sametype and attribution as a logical port, so as to enhance the band-width, decrease the time delay, share the load and backup theservice in aggregation links.

FIGURE 46 ML-PPP PROTECTION DIAGRAM (NORMAL STATUS)

As shown in Figure 47, when some member link in the aggregationgroup faults, the ML-PPP E1 on the faulty link will be loaded by theother normal links in order to perform the traffic protection.



FIGURE 47 ML-PPP PROTECTION DIAGRAM (FAULT STATUS)


Chapter6 Cabinet


>> Cabinet Overview>> Cabinet Structure>> Cabinet Configuration>> Indicators on the Cabinet>> Cabinet Structural Specifications

6.1 Cabinet OverviewThe cabinet employs the unified cabinet of ZTE transmission equip-ment. It has excellent heat dissipation performance. It employsthe back column and the front door only.

Figure 48 shows the cabinet appearance.

FIGURE 48 CABINET APPEARANCE



6.2 Cabinet StructureFigure 49 displays the basic components in the cabinet. For thedetailed components in the cabinet, refer to Table 33.

FIGURE 49 BASIC COMPONENTS OF ZTE TRANSMISSION EQUIPMENTCABINET

1. Power cable outlet2. Top cable outlet3. Cabinet indicator4. Back column5. Cable clip6. Mounting bracket

7. Bottom cable outlet8. Grounding terminal of cabinet pro-

tection ground9. Front door10. Door lock11. Roller bearing

TABLE 33 DESCRIPTIONS OF BASIC COMPONENTS OF ZTE CABINET

No. Component Description

1 Power cable outlet Power cable outlets locate at the bottomand on the top of the cabinet. They are


Chapter 6 Cabinet

No. Component Descriptionused for leading external power cableout of the cabinet.

2 Top cable outlet It is located on the top of the cabinet.In the top cabling mode, cables are ledin/out through the top cable outlet.

3 Cabinet indicator It locates on the top of the cabinet.It indicates the working status of theequipment in the cabinet.

4 Back column It is used to fix the equipment subrackwith rear flanges.

5 Cable clip It is used to fix cables in the cabinet.

6 Mounting hole Mounting holes are located on the topand at the bottom of cabinet to fixthe cabinets in the top fixing mode,side-by-side fixing mode, back-to-backfixing mode, and bottom fixing mode.

7 Bottom cableoutlet

It is located on the bottom of the cabinet.In the bottom cabling mode, cables areled in/out through the top cable outlet.

8 Groundingterminal ofcabinet protectionground

The grounding terminals of the cabinetprotection ground are located on boththe cabinet side and the cabinet frontdoor.

9 Front door It has a lock. There is an equipmentnameplate at the top right corner ofthe front door. This nameplate withblue background and white charactersindicates the equipment type.

10 Door lock It locates on the left side of the cabinetfront door to lock the cabinet door.

11 Roller bearing The roller bearing and the supportingbearing form the sliding bearing toconnect the cabinet and its front door.

6.3 Cabinet ConfigurationTable 34 shows the quantity of components that can be installedin the standard cabinet for ZTE transmission equipment.



TABLE 34 EQUIPMENT CABINET CONFIGURATION TABLE

Quantity of ComponentsCabinet Type(Height ×Width × Depth,mm)

PowerDistribu-tion Box

ZXCTN 6200(recommended-/max.)

ZXCTN6200+ZXCTN6300(recommended-/max.)

2000×600×300 1 3/4 2/3

2200×600×300 1 3/4 2/3

– “ZXCTN 6200+ZXCTN 6300”is that ZXCTN 6200 and ZXCTN 6300 areinstalled maxly in the standard cabinet.

– Users can install the equipment of other manufacturers in the remainingspace of the cabinet as needed.

Note:

A minimum of 3U (1 U = 44.45 mm) space must be reserved atthe bottom of the cabinet. Otherwise, the cabinet rear door cannotbe installed and the cabinet grounding cable connection will beaffected.

6.4 Indicators on the CabinetThe indicators on the cabinet are located at the upper left cornerof a cabinet, including red, orange, yellow, and green indicators.Table 35 describes the statuses of the cabinet indicators.

TABLE 35 STATUSES OF THE CABINET INDICATORS

IndicatorName

IndicatorStatus

Description

On The device has a critical alarm,generally accompanied by an audioalarm.

Critical alarmindicator(Red)

Off The device has no critical alarms.

On The device has a major alarm.Major alarmindicator(Orange) Off The device has no major alarms.

On The device has a minor alarm.Minor alarmindicator(Yellow) Off The device has no minor alarms.


Chapter 6 Cabinet

IndicatorName

IndicatorStatus

Description

On The power supply of the device isnormal.

Powerindicator(Green)

Off The power supply of the device isinterrupted.

6.5 Cabinet StructuralSpecificationsTable 36 lists the dimensions and weights of cabinets.

TABLE 36 DIMENSIONS AND WEIGHTS OF CCABINETS

Dimensions(Height×Width×Depth, Unit:mm)

Weight (Unit: kg)

2000×600×300 59

2200×600×300 65

– The cabinet depth does not include the depth of the front door that protrudesfor 35 mm.

– The cabinet weight is the weight of an empty cabinet.


Chapter7 Power Distribution Box


Overview The power distribution box serves to receive the active andstandby external power supplies. After filtering and lightningprotection of the external power supplies, it distributes four pairsof active/standby power supplies to each subrack. The outline ofthe power distribution box is shown as Figure 50.

FIGURE 50 OUTLINE OF THE POWER DISTRIBUTION BOX

Structure The structure of the power distribution box is shown as Figure 51,the descriptions are listed in Table 37.



FIGURE 51 STRUCTURE OF THE POWER DISTRIBUTION BOX

TABLE 37 COMPONENTS OF POWER DISTRIBUTION BOX

Component Description

–48 V RTN output(1–4)

It serves for –48 V RTN output of the subrackand connects with the subrack –48 V RTNpower cable.

PE output It serves for the protection grounding outputand connects with the back post of the cabinetso as to guarantee good electrical connectionsfor the power distribution box.

–48 V output (1–4) It serves for the subrack –48 V output andconnects with the –48 V power cable ofsubrack.

PE input It serves for the external power protectivegrounding and accesses the nearest groundingbus bar in the equipment room, to implementelectronic connection of the whole cabinet.

–48 V RTN input(1–2)

It serves for the –48 V RTN input and accessesthe external –48 V RTN power cable.

–48 V input (1–2) It serves for the –48 V input and accesses theexternal –48 V power cable.

Technical Index Technical index of the power distribution box is listed in Table 38.


Chapter 7 Power Distribution Box

TABLE 38 TECHNICAL INDEX OF THE POWER DISTRIBUTION BOX

Items Unit Index

Dimensions (Height×Width×Depth)

mm 131 x 442 x 91

Weight kg 4.20

Nominal voltage: –48Input/output voltage V

Fluctuation range:–38.4 ~ –57.6

– The dimensions of the power distribution box do not include those of theinstallation lug.


Chapter8 Subrack


>> Structure and Slots of Subrack>> Fan Plug-in Box>> Dustproof Plug-in Box>> Technical Specifications of a Subrack

8.1 Structure and Slots of SubrackFigure 52 shows the slot layout of subrack.

FIGURE 52 SLOT LAYOUT OF SUBRACK

Note:

Slot1 ~ Slot4 are flexible slots of service interface boards, whileSlot5 ~ Slot9 are fixed slots of functional boards.

Table 39 lists the relation between slots and boards.

TABLE 39 BOARDS NAME AND SLOTS LIST

BoardDesignation Board Name Slots

RSCCU2 6200 Switch Control ClockUnit 5# ~ 6#

RPWD2 6200 -48 V Power DC Board 7# ~ 8#

R16E1F 16-Port E1 board with Frontinterface (75 Ω) 1# ~ 4#

R16E1F 16-Port E1 board with Frontinterface (120 Ω) 1# ~ 4#



BoardDesignation Board Name Slots

R16T1F 16-Port T1 board with Frontinterface 1# ~ 4#

R4ASB 4-Port ATM STM-1 Board 1# ~ 4#

4-Port Channelized STM-1Board 1# ~ 4#

R4CSB1-Port Channelized STM-4Board 1# ~ 4#

4-Port Channelized STM-1Pos Board 1# ~ 4#

R4CPS1-Port Channelized STM-4Pos Board 1# ~ 4#

4-Port STM-1 GatewayBoard 1# ~ 4#

R4GW1-Port STM-4 GatewayBoard 1# ~ 4#

R4EGC4-Port Enhanced GigabitEthernet Combo interfaceBoard

1# ~ 4#

R4GCG4-Port Enhanced GigabitEthernet Combo GREinterface Board

1# ~ 4#

R8EGE8-Port Enhanced GigabitEthernet Electrical interfaceBoard

1# ~ 4#

R8EGF8-Port Enhanced GigabitEthernet Fiber interfaceBoard

1# ~ 4#

R1EXG1-Port Enhanced 10 GigabitEthernet Fiber interfaceBoard

1# ~ 4#

R8FEI 8-Port Fast EthernetElectrical interface Board 1# ~ 4#

R8FEF 8-Port Fast Ethernet Fiberinterface Board 1# ~ 4#

R1GNE 1-Port Board 1# ~ 4#

R1OA 1-Port Optical AmplifierBoard 1# ~ 4#

RFAN2 FAN Board 9#

Table 40 lists the service access capacity of slots.


Chapter 8 Subrack

TABLE 40 SERVICE ACCESS CAPACITY

Slots Service Access Capacity

Slot1

Slot2

Supports 8 GE service access capacity.

Slot3

Slot4

Supports 4 GE and 10 GE service access capacity;when a 4 GE board is inserted, the access capacityis 4 GE, when a 10 GE board is inserted, the accesscapacity is 10 GE.

8.2 Fan Plug-in BoxStructure The structure of fan plug-in box is shown in Figure 53, which

adopts integrated design. A fan plug-in box is composed of fourparallel fans, and the fans share a socket.

FIGURE 53 FAN PLUG-IN BOX STRUCTURE

1. Fan2. Back plane interface3. Indicator

4. Carrying handle5. Captive screw

The fan plug-in box is installed in the left side of subrack, whichadopts lateral side air feed and discharge mode.

Functions Table 41 describes the functions supported by RFAN2.



TABLE 41 FUNCTIONS OF THE RFAN2

Item Description

Fans control The board receives speed control signals from theswitch control clock unit to control the speed of thefans.

Alarm detection Detects fan alarm information and reports it tothe switch control clock unit board.

Detects fan information and drives the indicatorson the panel to show the fan states. Should anyof the fans fails, the ALM indicator on the panelwill be on.

Front Panel Figure 54 shows the panel of the RFANP2, and Table 42 describesthe panel components.

FIGURE 54 PANEL OF THE RFAN2

1. Board running indicator2. Board alarm indicator3. Safety warning mark

4. Carrying handle5. Dome

TABLE 42 PANEL DESCRIPTION OF THE RFAN2

Item Description

Panel mark RFAN2

RUN Green, indicating that board runs properlyIndicator

ALM Red, indicating board alarm


Chapter 8 Subrack

Item Description

Carryinghandle

It is used to install or remove the board.Compo-nent

Dome It is used to fix the plug—in box in the sub-racksocket.

Safety warning mark It is used to prompt operation staff to stop therunning of fan before touching the fan.

Indicator Table 43 lists the RFAN2 board status and corresponding status ofindicators.

TABLE 43 RELATIONS BETWEEN WORKING STATUS AND INDICATOR STATUSOF RFAN2 BOARD

Indicator Indicator Status Description

On Board runs properly.RUN (Green)

Off Board runsimproperly.

On There is alarm on theboard.

ALM (Red)

Off There is no alarm onthe board.

TechnicalSpecifications

Table 44 lists the physical specifications of the RFAN2.

TABLE 44 PHYSICAL SPECIFICATIONS OF THE RFAN2

Items Description

Dimension (Height ×Width × Depth)

120.5 mm × 33.7 mm × 249.2 mm

Weight 0.7 kg

Power consumption 32 W

8.3 Dustproof Plug-in BoxThe dustproof plug-in box is installed at the right of the subrackbottom. It ensures the cleanness of the equipment subrack andprevents dust from entering the equipment and affecting theequipment performance.

Figure 55 shows the structure of the dustproof plug-in box.



FIGURE 55 STRUCTURE OF THE DUSTPROOF PLUG-IN BOX

1. Dustproof identifier2. Position for the pulling the plug-in

box3. Dust screen


Chapter 8 Subrack

Caution:

The dustproof plug-in box accumulates dust during its operation.Therefore, it is necessary to clean the dust screen regularly toavoid impact on ventilation and heat dissipation of the equipment.

8.4 Technical Specifications of aSubrackTable 45 lists the technical specifications of a subrack.

TABLE 45 TECHNICAL SPECIFICATIONS OF A SUBRACK

Technical Specifications Description

Dimensions (Height × Width×Depth)

130.5 mm × 482.6 mm × 240mm

Weight <11 kg

Total number ofslots

9Number ofslots

Number of serviceslots

4

Maximum power consumption ≤250 W

Input voltage -48 V ± 20%

Maximum inputcurrent

8 A

Power supply

Maximumoutput powerconsumption

300 W


Chapter9 Boards


>> Board Overview>> 6200 Switch Control Clock Unit>> 16-Port E1 board with Front interface Board R16E1F>> 4-Port ATM STM-1 Board R4ASB>> 4-Port Enhanced Gigabit Ethernet Combo interface Board R4EGC>> 4-Port Enhanced Gigabit Ethernet Combo GRE interface Board R4GCG>> 8-Port Enhanced Gigabit Ethernet Electrical interface Board R8EGE>> 8-Port Enhanced Gigabit Ethernet Fiber interface Board R8EGF>> 1-Port Enhanced 10 Gigabit Ethernet Fiber interface Board R1EXG>> Channelized STM-4 Board R4CSB>> Gateway Board R4GW>> Channelized Pos Board R4CPS>> 8-Port Fast Ethernet Fiber interface Board R8FEF/8-Port Fast Ethernet

Electrical interface Board R8FEI>> 16-Port T1 board with Front interface R16T1F>> 1-Port Gateway Board R1GNE>> Optical Amplifier Board R1OA>> 6200 -48V Power DC Board RPWD2

9.1 Board Overview

9.1.1 Board Appearance

The provides full-width and half-width boards.

Figure 56 shows the outline of the full-width board.



FIGURE 56 STRUCTURE OF THE FULL-WIDTH BOARD

1. Captive screw2. Panel

3. Ejector lever4. PCB

Figure 57 shows the outline of the half-width board.

FIGURE 57 STRUCTURE OF THE HALF-WIDTH BOARD

1. Captive screw2. Panel

3. Ejector lever4. PCB

Table 46 describes the board components.


Chapter 9 Boards

TABLE 46 BOARD COMPONENT DESCRIPTION

Compo-nent

Description

Captivescrew

Located on the panel and used to fasten a board in thecorresponding slot of the subrack.

Panel Made of steel plate, with indicators and necessaryinterfaces, preserved with a place to paste the boardcode label, and printed with board name, interface andindicator marks.

Ejector lever Used to insert, pull out and lock a board.

PCB Connects and loads board components. Its frontconnects to the panel and its rear is installed withbackplane connectors to enable connection between theboard and the backplane.

9.1.2 Relations Between the Boards

Figure 58shows the relations between the boards of .



FIGURE 58 RELATIONS BETWEEN THE BOARDS

9.1.3 Board Operating Environment

The board needs to operate in a proper environment in order tooperate stably. The operating environment requirements of theboards are shown in Table 47.

TABLE 47 REQUIREMENTS ON BOARD OPERATING ENVIRONMENT

Operating Time Temperature () Relative Humidity(%)

Long term -5 to 45 5 to 90


Chapter 9 Boards

9.2 6200 Switch Control Clock Unit

9.2.1 Board Functions

RSCCU2 is switch control clock unit board in , which is composedof functional boards, such as master control unit, switch unit, clocksynchronization unit and so on. RSCCU2 adopts 1+1 backup work-ing mode. It is the core board of .

Table 48 lists the functions of RSCCU2 board.

TABLE 48 FUNCTIONS OF RSCCU2 BOARD


Interface 1 BITS external clock output interface 1 BITS external clock input interface 1 network management interface (Qx) 1 local maintenance terminal interface LCT 1 CON debugging interface 1–channel GPS input interface and 1–channel

GPS output interface, which support the phasesynchronization information and absolute timeinputting

Supports input of 4–channel external alarmsignals.

Supports output of 3–channel device alarms.

Main Control Supports system control, communication,processing of network management commands,board management, searching of alarms andevents related to the boards and report of alarmsto the NM system

Runs routing protocols and maintains routingforwarding tables

Switch Supports service forwarding and coordination Supports 44GE switching capacity

Clock syn-chronization

Provides system synchronization clock for eachboard

Using 1588 protocol as clock reference resourceand locks it

Supports SSM processing, it synchronizes clocks inthe whole network and selects the clock with thehighest priority to avoid clock loop

Supports five kinds of working modes: lock, fastcapture, normal trace, remaining and free runningmode

Supports input/output of 1–channel phasesynchronization information (second pulse 1pps,TTL level) and absolute time value through theBITS clock interface.

Supports input/output of 1–channel phasesynchronization information and absolute timevalue through the GPS interface.

Protection Supports 1+1 hot backup for main control, crossingand clock units



9.2.2 Front Panel

The front panel of RSCCU2 is shown in Figure 59. Each part offront panel is described in Table 49.

FIGURE 59 RSCCU2 FRONT PANEL

1. Captive screw2. Run indicator (RUN)3. Alarm indicator (ALM)4. Board active/stan dBy indicator

(MST)5. CLK Clock running indicator (CLK)6. BITS interface (Tx)7. BITS interface (Rx)8. Time interface (GPS_IN)9. Time interface (GPS_OUT)10. Alarm input interface (ALM_IN)11. Alarm input interface (ALM_OUT)

12. Local maintenance terminal inter-face (LCT)

13. Network management interface(Qx)

14. Device running indicator interface(LAMP)

15. Device debugging interface (CON)16. Board enforced-handover button

(EXCH)17. Board reset button (RST)18. Ring-strip button (B_RST)19. Extractor

TABLE 49 FRONT PANEL DESCRIPTIONS OF RSCCU2

Item Description

Board Name Switch Control Clock Unit

Panel ID RSCCU2

RUN Green indicator. It is on when the board runs properly.

ALM Red indicator. It is on to indicate alarm.

MST Green indicator. It is active/stan dBy indicator of board.

RunningIndicator

CLK Green indicator. It is clock running state indicator.

BITS (Tx) BITS clock signal sending interface, adopting un-balanced CC4interface. It supports one channel BITS external clock output(75Ω).

BITS (Rx) BITS clock signal receiving interface, adopting un-balancedCC4 interface. It supports one channel BITS external clockintput (75Ω).

GPS_IN External time input interface, the interface type is RJ45. Itsupports to input phase synchronization information andabsolute time value. It is used to receive external time andsynchronize the local and external clock.

Interface


Chapter 9 Boards

Item Description

GPS_OUT External time output interface, the interface type is RJ45. Itsupports to output phase synchronization information andabsolute time value. It is used to send external time andsynchronize the local and external clocks.

ALM_IN Alarm input interface, the interface type is RJ45. It supportsfour channel external alarm inputs. It is used to receive alarmfrom other devices.

ALM_OUT Alarm output interface, the interface type is RJ45. It supportsthree alarm output channels. It is used to send alarm to otherdevices.

LCT Local maintenance terminal interface, the interface type isRJ45. It is used to Ethernet Telnet login and management.

Qx Network management interface, the interface type is RJ45. Itis used to connect ZTE network management system.

LAMP Device running indicator interface, the interface type is RJ45.It is used to connect the alarm indicators of cabinet and headscabinet.

CON Device debugging interface, the interface type is RJ45. It isused to configure and maintain the system.

EXCH Press the button to hand over the active/stan dBy controlswitch clock unit board.

RST Press the button to reset control switch clock unit board.

B_RST Alarm ring-strip switch When the alarms ring, press ring-strip switch no more

than 2 seconds to end the current ringing. If new alarmsoccur, the equipment will ring again.

When the alarms ring, press alarm ring-strip switch morethan 2 seconds to enter into permanent ring-strip status.If there are new alarms in this status, the equipment willnot ring, and the board alarm indicator flashes for 10seconds every minute. If there are no new alarms, theboard alarm indicator keeps original status.

If the equipment is in the status of permanent ring-strip,press ring-strip switch to end this status.

CaptiveScrew

It is used to fix the board in the subrack slot.

Component

Extractor It is helpful to plug-pull the board and fix the board in subrackslot.

9.2.3 Indicators

Table 50 shows the correspondence between indicator states andoperating states of the switch control clock unit.



TABLE 50 CORRESPONDENCE BETWEEN INDICATOR STATES AND OPERATING STATES

Indicator Status Description

Flashing at 1 Hz frequency The board is on the running status.

Off The board stops running.

RUN

On The board is starting.

On There is alarm on the board. The board is starting. For the standby switch control clock

unit, “On” means the data aresynchronized between the active andstandby boards (standby board).

ALM

Off There is no alarm on the board.

On “On”means that the board is active switchcontrol clock unit board.

MST

Off “Off” means that the board is standbyswitch control clock unit board.

Flashing at 0.5 Hz frequency The clock unit selects the default internalclock, then it is under the free oscillationstate.

Flashing at 5 Hz frequency 1. The clock unit is under the fast capturestate after selecting the clock source.

2. Then the clock is under the hold stateafter a while.

Flashing at 1 Hz frequency The clock is under the locked (normaltracing) state.

CLK

On The clock unit is under the hold state afterthe fiber is pulled out or the clock sourceis canceled.

9.2.4 Technical Specifications

The technical specifications of a main-control board include physi-cal specifications and the technical specifications of the BITS clockinterface.

TABLE 51 PHYSICAL SPECIFICATIONS OF A MAIN-CONTROL BOARD

Items Description

Dimension (Height ×Width × Depth)

35.2 mm × 351.0 mm × 227.0 mm

Weight 1.6 kg

Power consumption 70.0 W


Chapter 9 Boards

TABLE 52 TECHNICAL SPECIFICATIONS OF THE BITS CLOCK INTERFACE

Items Physical Specifications

Reference waveformand parameters of theoutput interface

2048 kbit/s, ITU-T G.703

2048 kHz, ITU-T G.703

Reflection loss of theinput interface

Complying with ITU-T G.703

Physicalelectricfeatures

Allowed attenuation atthe input interface

0 dB ~ 6 dB, 1024 kHz

Drifting in locked mode

Frequency accuracy

Holding feature

Input jitter tolerance

Drifting tolerance

Output jitter

Noise transmittingfeature

Pull-in/pull-out range

Clockperformancespecifications

Phase transients

Complying with ITU-TG0.813

9.3 16-Port E1 board with Frontinterface Board R16E1F


The R16E1F board is an E1 circuit emulation board, supportingsixteen E1 interfaces. On the UNI side, the board can supportTime Division Multiplex (TDM) E1 or Inverse Multiplexing over ATM(IMA) E1 function based on each E1 interface. On the NM system,R16E1F-(TDM+IMA) is displayed. On the NNI side, the board runsin ML-PPP mode and is displayed as R16E1F-(ML-PPP). Functionsof R16E1F board are listed in Table 53.



TABLE 53 FUNCTIONS OF THE R16E1F BOARD

Item Description

Interface The board supports 16–channel E1 interface,with the bandwidth of each interface being 2.048Mbit/s

For R16E1F-(TDM+IMA) board, working modeof E1 interface can be configured as TDM E1(CES) or IMA E1. For R16E1F-(ML-PPP) board,working mode of E1 interface can be configuredas ML-PPP E1.

E1 interface supports framing and framingdetection functions. Supports PCM30/PCM30CRC/PCM31/PCM31 CRC framing formats.Complies with ITU-T G.704.

Supports alarm reporting and performancereporting on all E1 interfaces

E1 Supports structured and non-structured TDM E1services when an E1 interface works in CircuitEmulation System (CES) mode and supportsE1 framing handling and time slot compressionfunction for structured services

Supports PWE3 encapsulation and de-encapsula-tion for TDM services.

Clock It supports adaptive clock recovery mode andre-timeing mode for TDM E1 and IMA E1 servicerestoring.

Supports 16–channel re-timing Supports drifting control of output clock

ML-PPP When the E1 interface is working in the ML-PPPservice mode, it can separately carry the voice andsignalling services of the base station. Supports line extracted synchronization clock. Supports detection of the ML-PPP link status. Supports protection of E1 link in the ML-PPP

group in the board.

9.3.2 Front Panel

The front panel of R16E1F board is shown in Figure 60. Table 54illustrates the front panel descriptions of R16E1F board.


Chapter 9 Boards

FIGURE 60 FRONT PANEL OF R16E1F BOARD

1. Captive screw2. Board running indicator RUN3. Board alarm indicator ALM

4. E1 electrical interface (1 ~ 8)5. E1 electrical interface (9 ~ 16)6. Ejector lever

TABLE 54 FRONT PANEL DESCRIPTIONS OF R16E1F BOARD

Item Description

Board name 16-Port E1 board with Front interface

Panel ID R16E1F



E1electricalinterface(1 ~ 8)

The No.1 ~ No.8 E1 electrical interfaces.The interface sockets are 50–core bent SCSIwelded sockets (holes). Each E1 signaluses four holes. The signal is defined in thesequence of Rx+, Tx+, Rx- and Tx-. R meansreceiving and T means transmitting. The valueof x can be 1, 2, 3……8.

Interface

E1electricalinterface(9 ~ 16)

The No.9 ~ No.16 E1 electrical interfaces.The interface sockets are 50–core bent SCSIwelded sockets (pins). Each E1 signal usesfour pins. The signal is defined in the sequenceof Rx+, Tx+, Rx- and Tx-. R means receivingand T means transmitting. The value of x canbe 9, 10, 11……16.



9.3.3 Indicators

Table 55 lists the R16E1F board status and corresponding statusof indicators.

TABLE 55 RELATIONS BETWEEN WORKING STATUS AND INDICATOR STATUSOF R16E1F BOARD

Indicator Status

Flashing at 0.5 Hzfrequency

The board is on therunning status.

RUN

Off The board stopsrunning.


The board fails toself-check.


ALM

Off There is no alarm onthe board.


The technical specifications of the R16E1F board include physicalspecifications and technical specifications of the E1 interface.

PhysicalSpecifications

The physical specifications of the R16E1F board are shown in Table56.

TABLE 56 PHYSICAL SPECIFICATIONS OF THE R16E1F BOARD


Dimensions(Height×Width×Depth)

25.0 mm × 158.2 mm × 227.0 mm

Weight 0.48 kg


TechnicalSpecifications

The technical specifications of the E1 interface provided by theR16E1F board are shown in Table 57.

TABLE 57 TECHNICAL SPECIFICATIONS OF THE E1 INTERFACES PROVIDEDBY THE R16E1F BOARD


Nominal rate 2.048 Mbit/s

Coding type High Density Bipolar of Order 3 (HDB3)


Chapter 9 Boards


Allowed attenuation at theinput interface (based onthe square root law)

0 dB ~ 6 dB, 1024 kHz

Allowed frequency deviationat the input interface

>±50 ppm

Bit rate tolerance at theinput interface

<±50 ppm

Jitter and wander at theoutput interface

Comply with ITU-T G.823

Signal waveform at theoutput interface

Complies with ITU-T G.703

Anti-interference capability(S/N) at the input interface

18 dB

Input jitter and wandertolerance


Reflection attenuation at theinput interface


9.4 4-Port ATM STM-1 BoardR4ASB


The R4ASB board is an Asynchronous Transfer Mode (ATM) inter-face board, and it implements transmission of SDH-carried ATMservices via the other network. Functions of the board are shownin Table 58.

TABLE 58 FUNCTIONS OF THE R4ASB BOARD

Item Description

Interface Provides four ATM optical interfaces Supports port digital diagnosis

SDH Supports Synchronous Digital Hierarchy (SDH)functions, including standard SDH framestructure, SDH frame demarcation, clockrecovery, section layer cost handling, alarmand performance statistics

Laser shutdown Supports port laser automatic shutdown

ATM Implements Pseudo Wire EmulationEdge-to-Edge (PWE3) encapsulation andde-encapsulation for ATM cells

Supports mapping of attributes in ATM cellheaders



9.4.2 Front Panel

The front panel of R4ASB board is shown in Figure 61. Table 59illustrates the front panel descriptions of R4ASB board.

FIGURE 61 FRONT PANEL OF R4ASB BOARD

1. Captive screw2. Board running indicator3. Board alarm indicator4. ATM STM-1 optical interface5. Optical interface TX indicator

6. Optical interface RX indicator7. Laser warning mark8. Laser class mark9. Ejector lever

TABLE 59 FRONT PANEL DESCRIPTIONS OF R4ASB BOARD

Item Description

Board Name 4-Port ATM STM-1 Board

Panel ID R4ASB



Interface ATMSTM-1opticalinterface

Four ATM STM-1 optical interfaces, usingpluggable SFP optical module

Tn Green, sending port indicator, n=1 to 4Interfaceindicator

Rn Green, receiving port indicator, n=1 to 4

Laser warning mark It is used to warn operation staff not to lookthe optical interface directly to avoid burningeyes when they plug in or plug out the tailfiber.

Laser class mark It indicates that the laser class of the R4ASBboard is 1.

9.4.3 Indicators

Table 60 lists the R4ASB board status and corresponding status ofindicators.


Chapter 9 Boards

TABLE 60 RELATIONS BETWEEN WORKING STATUS AND INDICATOR STATUSOF R4ASB BOARD

Indicator Status

Flashing at 1 Hzfrequency

The board is on the runningstatus.


RUN



Connection at the port isdisconnected.

The board is starting. The port is not up.

On There is alarm on the board.

ALM

Off The board is operatingnormally.

Off Laser is closed.Tn (n: 1 ~ 4)(Green)

On Laser is open.

Off Interface does not receiveoptical signal.

On Optical signal is locked andthere is no section level errorcode.

Rn (n: 1 ~ 4)(Green)


Optical signal is not lockedand there is section level errorcode.


The technical specifications of the R4ASB board include physicalspecifications and technical specifications of the STM-1 interface.

Physical Indices Table 61 shows the physical indices of the R4ASB board.

TABLE 61 PHYSICAL SPECIFICATIONS OF THE R4ASB BOARD



25.0 mm × 158.2 mm × 227.0 mm

Weight 0.43 kg


Technical Indices Table 62 shows the technical indices of the R4ASB board.



TABLE 62 TECHNICAL SPECIFICATIONS OF THE R4ASB BOARD



Coding type NRZ scrambling (complying with ITU-T G.707 andgenerated by a level-7 synchronous scrambler)

Optical interfacetypes

S1.1 L1.1 L1.2

Transmissiondistance

<15 km <40 km <80 km

Connector types LC/PC LC/PC LC/PC

Average sentoptical power

-15 dBm ~ -8dBm

-5 dBm ~ 0dBm

-5 dBm ~ 0dBm

Minimumextinction ratio

8.2 dB 10.2 dB 10.2 dB

Sensitivity of thereceiver

–28 dBm –34 dBm –34 dBm

Overload opticalpower of thereceiver

–8 dBm –10 dBm –10 dBm

Allowedfrequencydeviation at theoptical inputinterface

>±20 ppm

AIS rate at theoptical outputinterface

<±20 ppm

9.5 4-Port Enhanced GigabitEthernet Combo interface BoardR4EGC


The R4EGC board can process four gigabit optical services or fourgigabit Ethernet electrical services. Functions of the board areillustrated in Table 63.


Chapter 9 Boards

TABLE 63 FUNCTIONS OF THE R4EGC BOARD

Item Description

Interface Provides four gigabit SFP optical interfaces or fourgigabit Ethernet electrical interfaces

Types of optical interfaces support 100Base-FX,1000Base-SX and 1000Base-LX. Typesof electrical interfaces include 10Base-T,100Base-TX and 1000Base-T.

Supports rate configuration of optical interfaces Supports optical interface digital diagnosis Supports full duplex/half duplex mode on

electrical interfaces Supports 10M/100M/1000M automatic negotiation

on electrical interfaces Supports compulsive mode on electrical interfaces Supports automatic crossing function in any task

mode on electrical interfaces Supports electrical interface cable test

Lasershutdown

Supports laser automatic shutdown on opticalinterfaces

Synchroniza-tion

Supports synchronous Ethernet Supports timestamp function of 1588 messages

OAM Realizes Frame Loss Measurement (LM) and DelayMeasurement (DM) functions related to system OAM

Caution:

The optical interface and electrical interface with the same numbercannot be used at the same time. Only one of them can be used.For example, when No.1 electrical interface is working, the No.1optical interface is unavailable.

9.5.2 Front Panel

The front panel of R4EGC board is shown in Figure 62. Table 64illustrates the front panel descriptions of R4EGC board.

FIGURE 62 FRONT PANEL OF R4EGC BOARD

1. Captive screw2. Board running indicator

3. Board alarm indicator



4. GE Ethernet electrical interfaceACT indicator

5. GE Ethernet electrical interfaceLINK indicator

6. GE Ethernet electrical interface7. GE Ethernet optical interface ACT

indicator

8. GE Ethernet optical interface LINKindicator

9. GE Ethernet optical interface10. Ejector lever11. Laser warning mark

TABLE 64 FRONT PANEL DESCRIPTIONS OF R4EGC BOARD

Item Description

Board Name 4-Port Enhanced Gigabit Ethernet Combointerface Board

Panel ID R4EGC



GE (elec-trical)

4 gigabit Ethernet electrical interfaces, usingRJ45 socket

Interface

GE(optical)

4 gigabit Ethernet optical interfaces, usingpluggable SFP optical module

ACT(electri-cal)

Yellow, indicating ACTIVE status of electricalinterfaces

LINK(electri-cal)

Green, indicating LINK status of electricalinterfaces

ACT(optical)

Green, indicating ACTIVE status of opticalinterfaces

Interfaceindicator

LINK(optical)

Green, indicating LINK status of opticalinterfaces

Laser warning mark It is used to warn operation staff not to lookthe optical interface directly to avoid burningeyes when they plug in or plug out the tailfiber.

9.5.3 Indicators

Table 65 lists the R4EGC board status and corresponding status ofindicators.


Chapter 9 Boards

TABLE 65 RELATIONS BETWEEN WORKING STATUS AND INDICATOR STATUSOF R4EGC BOARD

Indicator Status


The board is on therunning status.


RUN

Off The board stopsrunning.


Connection atthe port isdisconnected.

The board isstarting.

The port is not up.


ALM

Off The board is operatingnormally.

Off Interface is indisconnected status.

LINK

On Interface is inconnected status.

Off Interface does notreceive optical signal.

ACT


Interface receives andtransmits data.


The technical specifications of the R4EGC board include physicalspecifications, and technical specifications of the GE optical inter-face and the GE electrical interface.

Physical Indices Table 66 shows the physical indices of the R4EGC board.

TABLE 66 PHYSICAL SPECIFICATIONS OF THE R4EGC BOARD



25.0 mm × 158.2 mm × 227.0 mm

Weight 0.6 kg


Technical Indices Table 67 and Table 68 show the physical indices of the GE opticaland electrical interface provided by the R4EGC board.



TABLE 67 TECHNICAL SPECIFICATIONS OF THE GE OPTICAL INTERFACEPROVIDED BY THE R4EGC BOARD


Nominal rate 1000 Mbit/s

Opticalinterface types

1000BA-SE-SX (0.5km)

1000BA-SE-LX (10km)

1000BA-SE-LX (40km)

1000BA-SE-ZX (80km)

Connectortypes

LC LC LC LC

Optical fibertypes

Multi-mode Multi-mode Multi-mode Multi-mode

Centralwavelength

850 1310 1310 1550


-9.5 dBm ~-4 dBm

-9 dBm ~-3 dBm

-4 dBm ~ 5dBm

0 dBm ~ 5dBm

Sensitivity ofthe receiver

≤-17 ≤-20 ≤-22 ≤-22

TABLE 68 TECHNICAL SPECIFICATIONS OF THE GE ELECTRICAL INTERFACEPROVIDED BY THE R4EGC BOARD


Nominal rate 10/100/1000 Mbit/s

Compliedstandard

IEEE 802.3

Interface RJ45

Transmissionmedia

Category-5 Unshielded Twisted Pair (UTP)

9.6 4-Port Enhanced GigabitEthernet Combo GRE interfaceBoard R4GCG


The R4GCG board can process four channels of GE electrical oroptical signals.

Table 69 describes the functions supported by the R4GCG board.


Chapter 9 Boards

TABLE 69 FUNCTIONS OF THE R4GCG BOARD

Item Description

Interface Provides four gigabit SFP optical interfaces and fourGE electrical interfaces.

Supports optical interfaces of 100Base-FX,1000Base-SX and 1000Base-LX and electricalinterfaces of 10Base-T, 100Base-TX and 1000Base-T.

Supports optical interface rate configuration. Supports optical interface digital diagnosis. Supports electrical interface full duplex mode. Supports 10M/100M/1000M auto negotiation of the

electrical interface. Supports electrical interface force mode. Supports auto crossover function of the electrical

interface in any mode. Supports electrical interface cable test.

Lasershutdown

Supports automatic shutdown of the optical interfacelaser.

Synchroni-zation

Supports synchronization to the Ethernet. Supports time stamp being carried by 1588 packets.

OAM Assists to implement the system OAM-related LM(Loss Measurement), DM (Delay Measurement)functions.

Assists the system in encapsulating/decapsulatingGRE tunnel-based OAM packets.

GRE Supports the GRE function, by which the MPLS, EMS andsignals can be transmitted to IP network through the GREtunel to implement the following functions:

Supports processing 1588 packets with the vlan tag. Supports processing T-MPLS OAM-based LM and DM. Supporting the mel field plus/minus one in embedded

T-MPLS OAM packets.

Caution:

The optical interface and the electrical interface of the same num-ber cannot be used simultaneously. Only one of them can be usedat a time. For example, when electrical interface 1 is operating,optical interface 1 is invalid.

9.6.2 Front Panel

Figure 63 shows the panel of the R4GCG board, and Table 70 de-scribes the panel components.



FIGURE 63 PANEL OF THE R4GCG BOARD

1. Captive screw2. Board operating state indicator

RUN3. Board alarm indicator ALM4. GE electrical interface5. GE Ethernet electrical interface

ACT indicator6. GE Ethernet electrical interface

LINK indicator

7. GE Ethernet optical interface ACTindicator

8. GE Ethernet optical interface LINKindicator

9. GE optical interface10. Ejector lever11. Laser warning mark

TABLE 70 PANEL DESCRIPTION OF THE R4GCG BOARD

Item Description

Board Name 4-Port Enhanced Gigabit Ethernet Combo GREinterface Board

Panel ID R4GCG

RUN Green, indicating the board is operatingnormally.

Indicator

ALM Red, indicating board alarm.

GE (elec-trical)

4-channel GE electrical interface with the RJ45socket.

Interface

GE(optical)

4-channel GE optical interface with thepluggable SFP optical module.

ACT(electri-cal)

Green, indicating ACTIVE state of the electricalinterface.

LINK(electri-cal)

Green, indicating LINK state of the electricalinterface.

ACT(optical)

Green, indicating ACTIVE state of the opticalinterface.

Interfacestateindicator

LINK(optical)

Green, indicating LINK state of the opticalinterface.


Chapter 9 Boards

9.6.3 Indicators

Table 71 shows the correspondence between indicator states andoperating states of the R4GCG board.

TABLE 71 RELATIONS BETWEEN WORKING STATUS AND INDICATOR STATUSOF R4GCG BOARD

Indicator Status




RUN






ALM

Off The board is operating normally.

Off Interface is in disconnectedstatus.

LINK

On Interface is in connected status.

Off Interface does not receive opticalsignal.

ACT


Interface receives and transmitsdata.


Table 72 shows the technical indices of the R4GCG board.

TABLE 72 TECHNICAL INDICES OF THE R4GCG BOARD

Item Performance Index

Board panel dimensions(Height×Width×Depth)

25.0 mm × 158.2 mm × 227.0 mm

Board weight 0.49 kg

Board powerconsumption

21.0 W

Ethernet interface Compliant with the IEEE 802.3 standard



9.7 8-Port Enhanced GigabitEthernet Electrical interface BoardR8EGE


The R8EGE board implements eight channels of FE/GE electricalservice processing. Functions supported by the board are shownin Table 73.

TABLE 73 FUNCTIONS OF THE R8EGE BOARD

Item Description

Interface Provides eight Gigabit Ethernet electricalinterfaces. Types of interfaces include10Base-T, 100Base-TX and 1000Base-T

Supports full-duplex working mode Supports 10M/100M/1000M auto negotiation

Synchronization Supports timestamp function of 1588 messages Supports synchronous Ethernet

OAM Assists to complete LM and DM functionsrelated to system OAM

Supports to modify MEL value of MPLS-TP OAMpacket

9.7.2 Front Panel

The front panel of R8EGE board is shown in Figure 64. Table 74illustrates the front panel descriptions of R8EGE board.

FIGURE 64 FRONT PANEL OF R8EGE BOARD

1. Captive screw2. Board running indicator3. Board alarm indicator4. GE Ethernet electrical interface5. GE Ethernet electrical interface

ACT indicator6. GE Ethernet electrical interface

LINK indicator7. Ejector lever


Chapter 9 Boards

TABLE 74 FRONT PANEL DESCRIPTIONS OF R8EGE BOARD

Item Description

Board name 8-Port Enhanced Gigabit Ethernet Electricalinterface Board

Panel ID R8EGE

RUN Green. It is on when the board runs properlyIndicator

ALM Red. It is on when the board runs improperly

Interface GE Eight GE Ethernet electrical interfaces,adopting RJ45 socket

ACT Yellow, it indicates the ACTIVE state of opticalinterface

InterfaceIndicator

LINK Green, it indicates the LINK state of opticalinterface

9.7.3 Indicators

Table 75 lists the R8EGE board status and corresponding status ofindicators.

TABLE 75 RELATIONS BETWEEN WORKING STATUS AND INDICATOR STATUSOF R8EGE BOARD

Indicator Status




RUN






ALM



LINK




Indicator Status


ACT




The technical specifications of the R8EGE board include physicalspecifications and technical specifications of the GE electrical in-terface.

Physical Indices Table 76 shows the physical indices of the R8EGE board.

TABLE 76 PHYSICAL SPECIFICATIONS OF THE R8EGE BOARD



25.0 mm ×158.2 mm ×227.0 mm

Weight 0.45 kg


Technical Indices Table 77 shows the technical indices of the GE electrical interfaceprovided by the R8EGE board.

TABLE 77 TECHNICAL SPECIFICATIONS OF THE GE ELECTRICAL INTERFACEPROVIDED BY THE R8EGE BOARD


Complied standard IEEE 802.3


Interface RJ45

9.8 8-Port Enhanced GigabitEthernet Fiber interface BoardR8EGF


The R8EGF board is an enhanced Ethernet board, which provideseight GE/FESFP (Small Form Factor Pluggable) optical interfaces.

The detailed functions of R8EGF board are described in Table 78.


Chapter 9 Boards

TABLE 78 FUNCTIONS OF THE R8EGF BOARD

Item Description

Interface Supports eight GE/FE optical interfaces, whichsupport SFP long-distance and short-distance opticalmodule

Supports rate configuration of optical interface Supports digital diagnosis of optical interface and

provides analog quantity detection of receptionoptical power, sending optical power, lasertemperature and laser bias

Supports automatic laser shutdown

Synchroni-zation

Supports network clock synchronization withEthernet interface, in compliance with ITU-T G.8261

Supports locking the 1588 clock resource andoutputting system clock

OAM Assists to complete LM and DM functions related tosystem OAM

Supports modifying MEL value of MPLS-TP OAMpacket

Protection Supports over current protection for power units Supports active/standby protection for board clock Supports power-off recovery

9.8.2 Front Panel

The front panel of R8EGF board is shown in Figure 65. Table 79illustrates the front panel descriptions of R8EGF board.

FIGURE 65 FRONT PANEL OF R8EGF BOARD

1. Captive screw2. Board alarm indicator3. Board running indicator4. Ethernet optical interface ACT in-

dicator5. GE Ethernet optical interface LINK

indicator6. Ethernet optical interface7. Ejector lever8. Laser warning mark



TABLE 79 FRONT PANEL DESCRIPTIONS OF R8EGF BOARD

Item Description

Board name 8-Port Enhanced Gigabit Ethernet Fiberinterface Board

Panel ID R8EGF

RUN Green. It is on when the board runs properly.Indicator

ALM Red. It is on when the board runs improperly.

Interface GE/FE Eight GE/FE Ethernet optical interfaces,adopting plug-pull SFP optical module

ACT Green. It indicates the ACTIVE state of opticalinterface.

Interfaceindicator

LINK Green. It indicates the LINK state of opticalinterface.

Laser warning mark It warns the staff not to watch the opticalinterface directly when plugging and pullingtail fiber to avoid eye hurt.

9.8.3 Indicators

Table 80 lists the R8EGF board status and corresponding status ofindicators.

TABLE 80 RELATIONS BETWEEN WORKING STATUS AND INDICATOR STATUSOF R8EGF BOARD

Indicator Status




RUN






ALM



LINK



Chapter 9 Boards

Indicator Status


ACT




The technical specifications of the R8EGF board include physicalspecifications, and technical specifications of the GE optical inter-face and the FE electrical interface.

Physical Indices Table 81 shows the physical indices of the R8EGE board.

TABLE 81 PHYSICAL SPECIFICATIONS OF THE R8EGE BOARD



25.0 mm × 158.2 mm × 227.0 mm

Weight 0.7 kg


Technical Indices Table 82 and Table 83 show the technical indices of the GE/FEoptical interface provided by the R8EGF board.

TABLE 82 TECHNICAL SPECIFICATIONS OF THE GE OPTICAL INTERFACEPROVIDED BY THE R8EGF BOARD




1000B-ASE-SX(0.5 km)

1000BA-SE-LX (10km)

1000BA-SE-LX (40km)

1000B-ASE-ZX(80 km)

Connector types LC LC LC LC

Optical fiber types Multi-mode

Multi-mode

Multi-mode

Multi-mode

Central wavelength 850 1310 1310 1550

Average sent opticalpower

-9.5 dBm~ -4 dBm

-9 dBm ~-3 dBm

-4 dBm ~5 dBm

0 dBm ~5 dBm


≤-17 ≤-20 ≤-22 ≤-22



TABLE 83 TECHNICAL SPECIFICATIONS OF THE FE OPTICAL INTERFACEPROVIDED BY THE R8EGF BOARD




100BASE-FX 100BASE-LX 1000BASE-LH


2 km 15 km 40 km

Optical fiber types Multi-mode Single-mode Single-mode

Operatingwavelength (mm)

1270 ~ 1380 1261 ~ 1360 1261 ~ 1360

Average sent opticalpower ( dBm)

-20 ~ -14 -11.5 ~ -8.0 -5 ~ 0


≤-30 ≤-31 ≤-34

9.9 1-Port Enhanced 10 GigabitEthernet Fiber interface BoardR1EXG


The R1EXG board furnishes one 10GE optical service processing,and functions supported by it are illustrated in Table 84.

TABLE 84 FUNCTIONS OF THE R1EXG BOARD

Item Description

Interface Supports one 10GE optical port, and the portadopts XFP (10-Gigabit Samll Form-FactorPluggable) optical module.

Supports port speed configuration. Supports optical port digital diagnosis. Supports automatic shutdown of laser on the

optical port.

Synchronization Supports synchronous Ethernet. Supports locking 1588 clock source, and

outputs system clock.


Chapter 9 Boards

Item Description

OAM Assists to complete LM and DM functionsrelated to system OAM

Supports to modify MEL value of MPLS-TPOAM packet

Protection Supports overflow protection of the powerunit.

Support active/standby protection of theclock board.

Supports outage restoration.

9.9.2 Front Panel

The front panel of R1EXG board is shown in Figure 66. Table 85illustrates the front panel descriptions of R1EXG board.

FIGURE 66 FRONT PANEL OF R1EXG BOARD

1. Captive screw2. Board running indicator3. Board alarm indicator4. 10GE Ethernet optical interface

ACT indicator

5. 10GE Ethernet optical interfaceLINK indicator

6. 10GE Ethernet optical interface7. Ejector lever8. Laser warning mark9. Laser level mark

TABLE 85 FRONT PANEL DESCRIPTIONS OF R1EXG BOARD

Item Description

Board name 1-Port Enhanced 10 Gigabit Ethernet Fiberinterface Board

Panel ID R1EXG



Interface 10GE One GE Ethernet optical interface, adoptingplug-pull XFP optical module



Item Description

ACT Green. It indicates the ACTIVE state of opticalinterface.

Interfaceindicator

LINK Green. It indicates the LINK state of opticalinterface.


Laser class mark It indicates that the laser class of R1EXG boardis CLASS 1.

9.9.3 Indicators

Table 86 lists the R1EXG board status and corresponding status ofindicators.

TABLE 86 RELATIONS BETWEEN WORKING STATUS AND INDICATOR STATUSOF R1EXG BOARD

Indicator Status




RUN






ALM



LINK



ACT




Chapter 9 Boards


The technical specifications of the R1EXG board include physicalspecifications and technical specifications of the 10GE optical in-terface.

Physical Indices Table 87 shows the physical indices of the R1EXG board.

TABLE 87 PHYSICAL SPECIFICATIONS OF THE R1EXG BOARD



25.0 mm × 158.2 mm × 227.0mm

Weight 0.5 kg


Technical Indices Table 88 shows the technical indices of the 10GE optical interfaceprovided by the R1EXG board.

TABLE 88 TECHNICAL SPECIFICATIONS OF THE 10GE OPTICAL INTERFACEPROVIDED BY THE R1EXG BOARD




10GB-ASE-SR(0.3 km)

10GBA-SE-LR (10km)

10GBA-SE-ER (40km)

10GBA-SE-ZR (80km)

Connector types LC LC LC LC

Optical fiber types Multi-mode

Single-mode

Single-mode

Single-mode

Central wavelength(mm)

850 1310 1550 1550


-7.3 dBm~ -1 dBm

-5 dBm ~-1 dBm

0 dBm ~2 dBm

1 dBm ~4 dBm


≤-11.1 ≤-14 ≤-16.5 ≤-26

9.10 Channelized STM-4 BoardR4CSB


The R4CSB board has two types: 4-Port Channelized STM-1 Boardand 1-Port Channelized STM-4 Board, these two types can finish



four channelized STM-1 or one STM-4 service processing. It im-plements structured and un-structured convergence and throughtransmission of TDM services.

R4CSB provides four STM-1 optical convergence port. The backpanel provides a bandwidth of 1GE, and provides accessing/conflu-ence of E1 services for low-end E1 boards. Boards of UNI mode areshown as R4CSB(TDM) in the network management, and boardsof NNI mode are shown as R4CSB(ML-PPP).

Functions supported by the board are illustrated in Table 89.

TABLE 89 FUNCTIONS OF THE R4CSB BOARD

Item Description

Interface Provides a merging port for the four STM-1, andsupports 252 mappings from E1 services to SDH.

Support compatibleness of STM-4 speed onoptical port 1.

SDH Support standard SDH frame structure, SDHframe delimitation function, clock recoveryfunction, the processing of segment cost, andalarm and performance statistic

Supports 1+1 swapping feature for the boardSTM-1. When a certain STM-1 port of the workingboard faults, all services of the four STM-1 portsof the board are swapped to the protection board.

Clock Can use the port clock of a certain STM-1 as thestandard clock and send it to the main board foruse as the system clock.

Supports differentiated clock restoration and selfadaptive clock restoration.

Packet Supports PWE3 service encapsulation bearer Supports structured TDM services and

un-structured TDM services.

Lasershutdown

Supports port laser auto shutdown

9.10.2 Front Panel

The front panel of R4CSB is shown in Figure 67. Table 90 illustratesthe front panel descriptions of R4CSB.

FIGURE 67 FRONT PANEL OF R4CSB BOARD


Chapter 9 Boards

1. Captive screw2. Board running indicator3. Board alarm indicator4. Optical interface sending indicator5. Optical interface receiving indica-

tor

6. Optical interface7. Extractor8. Laser warning mark9. Laser class mark

TABLE 90 FRONT PANEL DESCRIPTIONS OF R4CSB BOARD

Item Description

Board Name 4-Port Channelized STM-1 Board / 1-PortChannelized STM-4 Board

Panel ID R4CSB



Interface STM-1opticalinterface

Four STM-1 optical interfaces, with the firstone configured as STM-4 optical interface andadopting plug-pull SFP optical module

TXn Green. It is the indicator of sending interface,n=1 ~ 4

Interfaceindicator

RXn Green. It is the indicator of receiving interface,n=1 ~ 4


Laser class mark It indicates that the laser level of R4CSB boardis CLASS 1.

9.10.3 Indicators

Table 91 lists the R4CSB board status and corresponding status ofindicators.

TABLE 91 RELATIONS BETWEEN WORKING STATUS AND INDICATOR STATUSOF R4CSB BOARD

Indicator Status




RUN




Indicator Status





ALM



On Laser is open.


On Optical signal is locked and thereis no section level error code.



Optical signal is not locked orthere is section level error code.


The technical specifications of the R4CSB board include physicalspecifications, and the technical specifications of the STM-1 opticalinterface and the STM-4 optical interface.

Physical Indices Table 92 shows the physical indices of the R4CSB board.

TABLE 92 PHYSICAL SPECIFICATIONS OF THE R4CSB BOARD



25.0 mm ×158.2 mm × 227.0 mm

Weight 0.43 kg


Technical Indices Table 93 and Table 94 show the technical indices of the STM-1/STM-4 optical interface provided by the R4CSB board.

TABLE 93 TECHNICAL SPECIFICATIONS OF THE STM-1 OPTICAL INTERFACEPROVIDED BY THE R4CSB BOARD



Coding type NRZ scrambling (complying with ITU-T G.707and generated by a level-7 synchronousscrambler)

Optical interface types S1.1 L1.1 L1.2


Chapter 9 Boards


Transmission distance <15 km <40 km <80 km



-15 dBm ~ -8dBm

-5 dBm ~ 0dBm

-5 dBm ~ 0dBm

Minimum extinctionratio

8.2 dB 10.2 dB 10.2 dB


–28 dBm –34 dBm –34 dBm

Overload opticalpower of the receiver


Allowed frequencydeviation at theoptical input interface

>±20 ppm

AIS rate at the opticaloutput interface

<±20 ppm

TABLE 94 TECHNICAL SPECIFICATIONS OF THE STM-4 OPTICAL INTERFACEPROVIDED BY THE R4CSB BOARD





Wavelength 1310 1310 1550




-15 dBm ~ -8dBm

-3 dBm ~ 2dBm

-3 dBm ~ 2dBm


8.2 dB 10 dB 10 dB


–28 dBm –28 dBm –28 dBm







>±20 ppm


<±20 ppm

9.11 Gateway Board R4GW


The R4GW board has two types: 4-channel Ch.STM-1 board or1-channel Ch.STM-4 board. The two types can finish 4-channelCh.STM-1 or 1-channel Ch.STM-4 service processing. The boardimplements service connection between the network and the SDHnetwork. R4GW board transmits packet service through the STM-1/STM-4 port, and fulfills requirements incurred by microwave net-working and SDH hybrid networking. Functions of the board aregiven in Table 95.

TABLE 95 FUNCTIONS OF THE R4GW BOARD

Item Description

Interface Provides 4-channel Ch.STM-1 interfaces or1-channel Ch.STM-4 interface

The first channel of interface can be configuredas STM-4, in this case, the other interfaces arenot available.

Supports accessing of Ethernet and TDM servicesthrough the STM-1/STM-4 port, and the servicesare transmitted in the network.

SDH Supports standard SDHframe structure, SDHfame delineation, clock restoration, segment/layeroverhead processing, and alarm statistics.

Supports virtual cascading of SDH services. Supports MSP protection of trans-board and

in-board STM-1 ports.

Clock Supports clock extraction on STM-1/STM-4, and itcomplies with ITU-T.G813

Supports system clock function.

Packet Supports PWE3 service encapsulation and carrying. Supports the processing for un-structured TDM

services.

9.11.2 Front Panel

The front panel of R4GW board is shown in Figure 68. Table 96illustrates the front panel descriptions of R4GW board.


Chapter 9 Boards

FIGURE 68 FRONT PANEL OF THE R4GW BOARD

1. Captive screw2. Board running indicator (RUN)3. Board alarm indicator (ALM)4. Optical transmit interface indicator5. Optical receive interface indicator

6. STM-1/STM-4 optical interface7. Extractor8. Laser warning mark9. Laser class mark

TABLE 96 FRONT PANEL DESCRIPTIONS OF R4GW BOARD

Item Description

Board Name 4-Port STM-1 Gateway Board / 1-Port STM-4 Gateway Board

Panel ID R4GW



Interface STM-1/STM-4opticalinterface

Four-channel STM-1 optical interface or one-channel STM-4optical interface, using pluggable SFP optical module

Tn Transmitting interface indicator, green, n=1 ~ 4Interfaceindicator

Rn Receiving interface indicator, green, n=1 ~ 4

9.11.3 Indicators

Table 97 lists the R4GW board status and corresponding status ofindicators.

TABLE 97 RELATIONS BETWEEN WORKING STATUS AND INDICATOR STATUSOF R4GW BOARD

Indicator Status




RUN




Indicator Status





ALM



On Laser is open.







The technical specifications of the R4GW board include physicalspecifications, and technical specifications of the STM-1 optical in-terface and the STM-4 optical interface.

Physical Indices Table 98 shows the physical indices of the R4GW board.

TABLE 98 PHYSICAL SPECIFICATIONS OF THE R4GW BOARD



25.0 mm×158.2 mm×227.0 mm

Weight 0.51 kg


Technical Indices Table 99 and Table 100 shows the technical indices of the STM-1/STM-4 optical interface provided by the R4GW board.

TABLE 99 TECHNICAL SPECIFICATIONS OF THE STM-1 OPTICAL INTERFACEPROVIDED BY THE R4GW BOARD






Chapter 9 Boards





-15 dBm ~ -8dBm

-5 dBm ~ 0dBm

-5 dBm ~ 0dBm


8.2 dB 10.2 dB 10.2 dB


–28 dBm –34 dBm –34 dBm

Overload optical powerof the receiver


Allowed frequencydeviation at the opticalinput interface

>±20 ppm


<±20 ppm

TABLE 100 TECHNICAL SPECIFICATIONS OF THE STM-4 OPTICAL INTERFACEPROVIDED BY THE R4GW BOARD









-15 dBm ~ -8dBm

-3 dBm ~ 2dBm

-3 dBm ~ 2dBm


8.2 dB 10 dB 10 dB


–28 dBm –28 dBm –28 dBm

Overload optical powerof the receiver





Allowed frequencydeviation at the opticalinput interface

>±20 ppm


<±20 ppm

9.12 Channelized Pos BoardR4CPS


The R4CPS board has two types: 4-Port Channelized STM-1 Posboard and 1-Port Channelized STM-4 Pos board. These two typesfinishes 4–port Channelized PoS STM-1 and 1–port ChannelizedPoS STM-4 service processing.

The board can be used at both NNI and UNI side. At the NNI side ofnetwork, the board can carry the service through the VC12, VC3,and VC4 channels, thus releasing encapsulation and adaptationfrom the MPLS-TP to TDM service. At the UNI side, the board canconnect with router.

The functions of R4CPS board are illustrated in Table 101.

TABLE 101 FUNCTIONS OF THE R4CPS BOARD

Item Description

Interface Supports four channels of STM-1 interfaces orone channel of STM-4 interface. The first STM-1interface can be configured as STM-4 interface.In this case, the last three STM-1 interfaces arenot usable.

Supports optical interface digital diagnosis Supports GFP-F protocol encapsulation services

SDH Supports standard SDH frame structure,SDH fame delineation, clock restoration,segment/layer overhead processing, and alarmstatistics.

Supports virtual cascading of SDH services. Supports MSP protection of trans-board and

in-board STM-1 ports.

Clock Supports clock extraction on STM-1/STM-4, andit complies with ITU-T G.813

Supports clock synchronization over the networkby using the SDH interface, and it complies withITU-T G.813

Supports manual assignment of clock resourceand automatic selection of the SSM protocol.

Laser Supports automatic shutdown of the laser


Chapter 9 Boards

9.12.2 Front Panel

Figure 69 shows the front panel of the R4CPS board. Table 102describes each part of the front panel.

FIGURE 69 FRONT PANEL OF THE R4CPS BOARD

1. Captive screw2. Board running/protection status

indicator (RUN/MS)3. Board alarm indicator (ALM)4. Optical interface sending indicator

5. Optical interface reception indica-tor

6. Optical interface7. Extractor8. Laser alarm identifier9. Laser class identifier

TABLE 102 FRONT PANEL DESCRIPTIONS OF THE R4CPS BOARD

Item Description

Board name 4-Port Channelized STM-1 Pos Board / 1-PortChannelized STM-4 Pos Board

Panel ID R4CPS

RUN Green, indicating the board isrunning properly

Indicator

ALM Red, indicating the board alarms

Interface Opticalinterface

Four-port STM-1 optical interface,the first two ports can beconfigured as the STM-4 opticalinterface, using pluggable SFPoptical module

Tn Green, sending indicator of theoptical interface, n=1 ~ 4

Interfaceindicator

Rn Green, reception indicator of theoptical interface, n=1 ~ 4

Laser alarm marker Indicates that the maintenancepersonnel do not look directly tooptical interfaces, avoiding burningtheir eyes.

Laser grade alarm Indicates that the laser class of theR4CPS is CLASS 1.



9.12.3 Indicators

Table 103 lists the correspondence between the running status ofthe R4CPS board and the status of the indicators.

TABLE 103 RELATIONS BETWEEN WORKING STATUS AND INDICATORSTATUS OF R4CPS BOARD

Indicator Status Descriptions




RUN






ALM



On Laser is open.







The technical specifications of the R4CPS board include physicalspecifications, and technical specifications of the STM-1 optical in-terface and the STM-4 optical interface.

Physical Indices Table 104 shows the physical indices of the R4CPS board.

TABLE 104 PHYSICAL SPECIFICATIONS OF THE R4CPS BOARD



25.0 mm × 158.2 mm ×227.0 mm

Weight 0.4 kg



Chapter 9 Boards

Technical Indices Table 105 and Table 106 show the technical indices of the STM-1/STM-4 optical interface provided by the R4CPS board.

TABLE 105 TECHNICAL SPECIFICATIONS OF THE STM-1 OPTICAL INTERFACEPROVIDED BY THE R4CPS BOARD



Coding type NRZ scrambling (complying with ITU-T G.707 andgenerated by a level-7 synchronous scrambler)


S1.1 L1.1 L1.2


<15 km <40 km <80 km



-15 dBm ~ -8dBm

-5 dBm ~ 0dBm

-5 dBm ~ 0dBm


8.2 dB 10.2 dB 10.2 dB


–28 dBm –34 dBm –34 dBm

Overload opticalpower of thereceiver


Allowedfrequencydeviation atthe optical inputinterface

>±20 ppm

AIS rate at theoptical outputinterface

<±20 ppm

TABLE 106 TECHNICAL SPECIFICATIONS OF THE STM-4 OPTICAL INTERFACEPROVIDED BY THE R4CPS BOARD





S4.1 L4.1 L4.2








-15 dBm ~ -8dBm

-3 dBm ~ 2dBm

-3 dBm ~ 2dBm


8.2 dB 10 dB 10 dB


–28 dBm –28 dBm –28 dBm




>±20 ppm


<±20 ppm

9.13 8-Port Fast Ethernet Fiberinterface Board R8FEF/8-Port FastEthernet Electrical interface BoardR8FEI


The R8FEF and R8FEI boards process eight channels of FE services.Table 107 shows the functions supported by the boards.

TABLE 107 FUNCTIONS OF THE R8FEF AND R8FEI BOARDS

Item Description

R8FEFboard

Provides eight FE SFP optical interfaces. Supports 100Base-FX optical interface. Supports optical interface rate configuration. Supports optical interface digital diagnosis.

Inter-face

R8FEIboard

Provides eight FE electrical interfaces. Supports 10Base-T and 100Base-TX electrical

interfaces. Supports electrical interface full duplex mode. Supports 10M/100M auto negotiation of the

electrical interface. Supports electrical interface force mode. Supports auto crossover function of the

electrical interface in any mode. Supports electrical interface cable test.


Chapter 9 Boards

Item Description

Clock Supports synchronization to the Ethernet. Supports time stamp being carried by IEEE

1588 packets.

OAM Assists to implement the system OAM-relatedLM (Loss Measurement), DM (DelayMeasurement) functions.

Supports modification of the MEL (MEG Level)value in the MPLS-TP OAM packets.

Laser shutdown Supports automatic shutdown of the opticalinterface laser.

9.13.2 Front Panel

Panels of the R8FEF and R8FEI boards are shown in Figure 70 andFigure 71, and descriptions of the panel components are shown inTable 108.

FIGURE 70 PANEL OF THE R8FEF BOARD

1. Captive screw2. Board running indicator3. Board alarm indicator4. ACTIVE state indicator of the opti-

cal interface

5. LINK state indicator of the opticalinterface

6. FE optical interface7. Extractor8. Laser warning mark

FIGURE 71 PANEL OF THE R8FEI BOARD

1. Captive screw2. Board running indicator3. Board alarm indicator4. ACTIVE state indicator of the elec-

trical interface5. LINK state indicator of the electri-

cal interface6. FE electrical interface

7. Extractor



TABLE 108 PANEL DESCRIPTION OF THE R8FEF/R8FEI BOARD

Item Description

Board name 8-Port Fast Ethernet Fiberinterface Board

8-Port Fast EthernetElectrical interface Board

Panel ID R8FEF R8FEI

RUN Green, indicating the board is operating normally.


AC-TIVEstateindica-tor

Green, indicating ACTIVEstate of the opticalinterface.

Yellow, indicating ACTIVEstate of the electricalinterface.

Indi-ca-tor

LINKstateindica-tor

Green, indicating LINKstate of the opticalinterface.

Green, indicating LINKstate of the electricalinterface.

Interface Eight FE optical interfaces.The Tx port panel ID isTn (n = 1 ~ 8), and theRx port panel ID is Rn(n = 1 ~ 8). PluggableSFP optical modules areadopted.

Eight FE electricalinterfaces, whose IDson the panel are 1 to8, and RJ45 sockets areadopted.

Laser alarmflag

Reminding operatorsto avoid bodily injuryby the laser whenplugging/unpluggingthe tail fiber.

-

9.13.3 Indicators

The R8FEF board provides RUN, ALM and FE optical interface indi-cators, and the R8FEI board provides RUN, ALM and FE electricalinterface indicators. Table 109 describes the indicator states.

TABLE 109 INDICATOR STATES OF THE R8FEF AND R8FEI BOARDS

Indicator Indicator State Description




RUN (green)



Chapter 9 Boards

Indicator Indicator State Description

Off There is no alarm in theboard.

ALM (red)

On There is an alarm in theboard.

On The FE optical interface isconnected.

LINK stateindicator of theoptical interface(green) Off The FE optical interface is

not connected.

Flashing The FE optical interface istransceiving data.

ACTIVE stateindicator of theoptical interface(green) Off The FE optical interface is

not transceiving data.

On The FE electrical interfaceis connected.

LINK stateindicator of theelectrical interface(green) Off The FE electrical interface

is not connected.

Flashing The FE electrical interfaceis transceiving data.

ACTIVE stateindicator of theelectrical interface(yellow) Off The FE electrical interface

is not transceiving data.

– The flashing frequency of 0.5 Hz means the indicator is on for one secondand off for one second. Flashing indicates the indicator flashes at variantfrequencies.


Technical indices of the R8FEF and R8FEI boards consist of physicalindices and interface indices.

Physical Indices Table 110 shows the physical indices of the R8FEF and R8FEIboards.

TABLE 110 PHYSICAL INDICES OF THE R8FEF AND R8FEI BOARDS

IndexItem

R8FEF board R8FEI board

Board dimensions(Height×Width×Depth)

158.2 mm × 25.0 mm × 210.0 mm

Board weight 0.46 kg 0.43 kg

Board power consumption(25 )

23 W 18 W

– The R8FEF board weight is the board weight without any optical module.



Interface Indices The FE optical interface of the R8FEF board and the FE electricalinterface of the R8FEI board comply with the IEEE 802.3 standard.Table 111 and Table 112 describe the indices respectively.

TABLE 111 TECHNICAL INDICES OF THE FE OPTICAL INTERFACE OF THER8FEF BOARD

Performance IndexItem

100BASE-FXmulti-mode

100BASE-LXsingle-mode

100BASE-LHsingle-mode

Nominalrate(Mbit/s)

100

Connectortype

LC

Transmis-sion dis-tance ( km)

2 15 40

Operatingwavelength(nm)

1270 ~ 1380 1261 ~ 1360 1261 ~ 1360

Averagetransmitopticalpower (dBm)

-20 ~ -14 -11.5 ~ -8.0 -5 ~ 0

Receiversensitivity( dBm)

-30 -31 -34

Receiveroverloadopticalpower (dBm)

-14 -8 -9

Minimumextinctionratio

10 9 10

TABLE 112 TECHNICAL INDICES OF THE FE ELECTRICAL INTERFACE OF THER8FEI BOARD

Performance IndexItem

10BASE-T 100BASE-TX

Nominal rate(Mbit/s)

10 100

Connector type RJ45

Cable specifications Enhanced C5 network cable


Chapter 9 Boards

9.14 16-Port T1 board with Frontinterface R16T1F


The R16T1F board is a T1 circuit emulation board. At UNI side, itimplements access and bearing of TDM (Time Division Multiplex)T1 or IMA (Inverse Multiplexing over ATM) T1 services. The log-ical name is R16T1F-(TDM) at EMS. At the NNI side, it encapsu-lates services in the ML-PPP mode for transfer. The logical nameis R16T1F-ML-PPP at EMS.

Table 113 describes the functions supported by the R16T1F board.

TABLE 113 FUNCTIONS OF THE R16T1F BOARD


Interface The board provides 16 T1 interfaces, each ofwhich has a transmission rate of 1.544 Mbit/s.

The T1 interface supports framing and framingdetection functions.

All T1 interfaces support alarm report andperformance report functions.

T1 The TDM T1 service supports structuredor non-structured circuit emulation mode.The structured service supports T1 framingprocessing and timeslot compression functions.

The TDM T1 service supports PWE3 encapsulationand decapsulation.

Clock Supports adaptive clock recovery and differentialclock recovery of TDM T1 and MA T1 servicestransmitted during reorganization.

Supports retiming of 16 channels of T1. Supports output clock drift control.

ML-PPP The board can implement separation and bearingof BTS voice and signaling services when the T1interface operates in the ML-PPP service mode.

Supports extraction of synchronization clockthrough the line.

Supports ML-PPP link state detection. Supports T1 link protection in the ML-PPP group

of the board.

9.14.2 Front Panel

Figure 72 shows the panel of the R16T1F board, and Table 114describes the panel components.



FIGURE 72 PANEL OF THE R16T1F BOARD


RUN

3. Board alarm indicator ALM4. T1 interface5. Ejector lever

TABLE 114 PANEL DESCRIPTION OF THE R16T1F BOARD

Item Description

Board name 16-Port T1 board with Front interface

Panel ID R16T1F


Indicator


T1 electricalinterface (1 ~8 channels)

The sockets of E1 electrical interfaces 1 ~ 8are 50-core bending SCSI welded sockets(hole type). Each E1 signal takes up fourpins defined as Rx+, Tx+, Rx- and Tx-respectively, where, R stands for receive,T stands for transmit, and x ranges from1, 2, 3...8.

Interface

T1 electricalinterface (9 ~16 channels)

The sockets of E1 electrical interfaces 9~ 16 are 50-core bending SCSI weldedsockets (hole type). Each E1 signal takesup four pins defined as Rx+, Tx+, Rx-and Tx- respectively, where, R standsfor receive, T stands for transmit, and xranges from 9, 10, 11...16.


Chapter 9 Boards

9.14.3 Indicators

Table 115 shows the correspondence between indicator states andoperating states of the R16T1F board.

TABLE 115 CORRESPONDENCE BETWEEN INDICATOR STATES AND OPERATINGSTATES

Indicator Operating State


The board is on the running status.RUN



The board fails to self-check.


ALM

Off There is no alarm on the board.


Technical indices of the R16T1F board consist of physical indicesand interface indices.

Physical Indices Table 116 shows the physical indices of the R16T1F board.

TABLE 116 PHYSICAL INDICES OF THE R16T1F BOARD

Item Index

Board dimensions(Height×Width×Depth)

25.0 mm × 395.4 mm × 210.0 mm

Board weight 0.48 kg

Board power consumption(25 )

16 W

Interface Indices Table 117 describes the T1 interface technical indices of theR16T1F board.

TABLE 117 TECHNICAL INDICES OF THE T1 INTERFACE OF THE R16T1FBOARD


Nominal rate (Mbit/s) 1.544

Interface resistance 100 Ω

Interface line code AMI/B8ZS




Output port pulse waveform Compliant with ITU-T G.703

Input port allowablefrequency deviation

> ±32 ppm

Output port bit ratetolerance

< ±32 ppm

Input/output jitter feature Compliant with ITU-T G.824

9.15 1-Port Gateway Board R1GNE


The R1GNE board provides a Qx interface. It implements networkaddress conversion through the NAT (Network Address Transla-tion) technology, and realizes information exchange between theextranet and the Data Communications Network (DCN) intranetthrough inter-board communication links.

Table 118 lists the functions supported by the R1GNE board.

TABLE 118 FUNCTIONS OF THE R1GNE BOARD


Interface Provides a Qx interface.

Isolation ofintranet andextranet IPaddresses

The board can implement free switchover of twotypes of applications:

The extranet address is transmitted transparently,which is supported by default.

The gateway and NE addresses are isolated,which needs to be configured through software.

Real-timecommunicationof the switchclock unit

Performs adaptation, isolation and protectionprocessing on the user-side data connected andoutputs to the switch control clock unit board.

Receives control commands in real time, resolvesthe commands and then sends them to thephysical interfaces on the panel.

9.15.2 Front Panel

Figure 73 shows the panel of the R1GNE board, and Table 119describes the panel components.


Chapter 9 Boards

FIGURE 73 PANEL OF THE R1GNE BOARD

1. Captive screw2. Board alarm indicator ALM3. Board operating state indicator

RUN

4. Qx interface5. Ejector lever

TABLE 119 PANEL DESCRIPTION OF THE R1GNE BOARD

Item Description

Board name 1-Port Board

Panel ID R1GNE


Indicator


Interface Qxinterface

RJ45 interface, used to connect the networkmanagement server.

9.15.3 Indicators

Table 120 shows the correspondence between indicator states andoperating states of the R1GNE board.

TABLE 120 RELATIONS BETWEEN WORKING STATUS AND INDICATORSTATUS OF R1GNE BOARD

Indicator Status




RUN






ALM





Technical indices of the R1GNE board consist of physical indicesand Qx interface technical indices.

Physical Indices Table 121 shows the physical indices of the R1GNE board.

TABLE 121 PHYSICAL INDICES OF THE R1GNE BOARD



25.0 mm × 158.2 mm × 227.0 mm

Board weight 0.5 kg


15 W

Technical Indices The Qx interface is a standard RJ45 interface that can be connectedto the network management system.

9.16 Optical Amplifier Board R1OA


The R1OA board amplifies optical signals by using Erbium DopedFiber Amplifier (EDFA) to compensate the attenuation loss intro-duced by combiner and divider at the terminal node or by opticaltransmission through the line.

Table 122 describes functions of the R1OA board.

TABLE 122 FUNCTIONS OF THE R1OA BOARD


Interface Provides an optical amplification interface.

Signalamplification

Different EDFA optical modules can be configured forthe board to implement switchover of three types ofoptical amplification modules.

Optical Booster Amplifier (OBA) board: Itprovides adequate optical power for the opticalsignal to be transmitted in the fiber after theoptical signal is amplified.

Optical Pre-Amplifier (OPA) board: It enables thereceive side to detect normal optical signals.

Optical Line Amplifier (OLA) board: It enablesamplification of optical signals during linetransmission.


Chapter 9 Boards

9.16.2 Front Panel

Figure 74 shows the panel of the R1OA board, and Table 123 de-scribes the panel components.

FIGURE 74 PANEL OF THE R1OA BOARD


RUN3. Board alarm indicator ALM4. Receive optical signal indicator R

5. Optical signal amplification inter-face

6. Ejector lever7. Optical signal transmission indica-

tor T

TABLE 123 PANEL DESCRIPTION OF THE R1OA BOARD

Item Description

Board Name 1-Port Optical Amplifier Board

Panel ID R1OA



T Green, indicating optical signal transmission.

Indicator

R Green, indicating optical signal receiving.

Interface Opticalinterface

One optical signal amplification interface.

9.16.3 Indicators

Table 124 shows the correspondence between indicator states andoperating states of the R1OA board.



TABLE 124 RELATIONS BETWEEN WORKING STATUS AND INDICATORSTATUS OF R1OA BOARD

Indicator Status




RUN






ALM


Off Laser is closed.T

On Laser is open.



R




Technical indices of the R1OA board consist of physical indices andoptical amplification interface technical indices.

Physical Indices Table 125 shows the physical indices of the R1OA board.

TABLE 125 PHYSICAL INDICES OF THE BOARD



25.0 mm × 158.2 mm × 227.0 mm

Board weight 0.5 kg


10 W

Technical Indices The optical amplification interface of the R1OA board supports ex-ternal LC/PC optical interface adapters and internal EDFA spoolinterface.


Chapter 9 Boards

9.17 6200 -48V Power DC BoardRPWD2


The RPWD2 board inputs -48 V DC power to the boards in the sub-rack through the backplane.Table 126 lists the functions supportedby the board.

TABLE 126 FUNCTIONS OF THE RPWD2 BOARD

Item Description

Equip-ment pro-tection

The 1 + 1 hot backup mode is adopted so thatthe board can provide two sets of DC powersimultaneously.

Provides over-current protection function. The boardautomatically cuts off power supply to the equipmentinside when the current inside the equipment exceedsthe rated current.

Provides over voltage and under voltage detectionfunctions. The board reports under voltage alarmwhen the external power voltage is too low, andreports over voltage alarm when the external powervoltage is too high.

Prevents from incorrect connection for the powerinput.

Hot plug-ging/un-plugging

Supports hot plugging/unplugging.

9.17.2 Front Panel

The front panel of DC RPWD2 board is shown in Figure 75, Table127 illustrates the front panel descriptions of RPWD2 board.



FIGURE 75 FRONT PANEL OF RPWD2 BOARD

1. Power cable plug2. Board alarm indicator

3. Board running indicator4. Power supply switch

TABLE 127 FRONT PANEL DESCRIPTIONS OF RPWD2 BOARD

Item Description

Board name DC power supply board

Board ID RPWD2


Indicator


Power cable plug It is used to connect –48 V DC power supplycable.

Power supply switch When power supply switch is in “OFF”, launchthe output for secondary power supply. Whenpower supply switch is in “ON”, cut off theoutput for secondary power supply.


Chapter 9 Boards

9.17.3 Indicators

Table 128 lists the RPWD2 board status and corresponding statusof indicators.

TABLE 128 RELATIONS BETWEEN WORKING STATUS AND INDICATORSTATUS OF RPWD2 BOARD

Indicator Indicator Status Description

ON The board is on the runningstatus.

RUN

OFF The board stops running.

ON There is alarm on the board.ALM

OFF The board is operating normally.


Table 129 lists the physical specifications of a RPWD2 board.

TABLE 129 PHYSICAL SPECIFICATIONS OF A RPWD2 BOARD


Dimension (Height × Width ×Depth)

62.2 mm × 52.0 mm × 262.3 mm

Weight 0.4 kg


The voltage and current specifications of a RPWD2 board are de-scribed as follows:

Input voltage: -48 V DC

Voltage fluctuation range: -48 V ±20%

Input current: 8 A

Output current: 7.8 A

Maximum output power: 300 W.


Chapter10 Board TypicalApplication


>> Applied Scenarios of an Ethernet Board>> Applied Scenarios of a R4ASB Board>> Applied Scenarios of a R4CPS Board>> Applied Scenarios of a R4CSB Board>> Applied Scenarios of a R4GW Board>> Applied Scenarios of a R16E1F Board

10.1 Applied Scenarios of anEthernet BoardThe Ethernet boards of include:

R4EGC boards

R8EGE boards

R8EGF boards

R1EXG boards

R4GCG boards

All Ethernet boards can operate in both UNI mode or NNI mode.As shown in Figure 76, an Ethernet board receives a service signalfrom a GE interface, the main-control board switches the service,and the service is sent out from the network-side board.

FIGURE 76 APPLIED SCENARIO OF AN ETHERNET BOARD



10.2 Applied Scenarios of a R4ASBBoardA R4ASB board provides four STM-1 interfaces, transfers the ATMservices over the SDH network on the network, and is applied atthe convergency layer on the network.

As shown in Figure 77, the R4ASB board on the device is used toreceive STM-1 service signals from the SDH network. After thesignals encounter service optical-to-electrical conversion, serviceencapsulation, and service switching and processing, the Ethernetboard outputs GE signals to the RNC.

FIGURE 77 APPLIED SCENARIO OF A R4ASB BOARD

10.3 Applied Scenarios of a R4CPSBoardA R4CPS board provides four STM-1 interfaces or one STM-4 inter-face. A R4CPS board switches the Ethernet service over the MSTPnetwork to the picketing network for transferring. In this case, thecost of transferring the Ethernet service is reduced, and the ex-isting networks can be compatible during the process of networkevolution.

With R4CPS boards, interworking between networks in differentareas is implemented over SDH/SONET networks. As shown inFigure 78, the edge device on network A and that on network B areconnected to the same SDH/SONET network with R4CPS boards.The R4CPS board on network A sends an STM-1 signal, and thesignal passes through the SDH/SONET network and is accessed bythe R4CPS board on network B. In this case, interworking betweennetwork A and network B is implemented.


Chapter 10 Board Typical Application

FIGURE 78 APPLIED SCENARIO OF A R4CPS BOARD (NNI SIDE)

10.4 Applied Scenarios of a R4CSBBoardA R4CSB board provides four STM-1 interfaces or one STM-4 in-terface, provides the E1 service access and convergency functionfor low-end E1 boards, and is applied at the convergency layer onthe network.

R4CSB boards are divided into two types, R4CSB (TDM) and R4CSB(ML-PPP). A R4CSB (TDM) board operates at the UNI side, while aR4CSB (ML-PPP) board operates at the NNI side.

UNI Side As shown in Figure 79, a R4CSB (TDM) board receives a chan-nelized STM-1 signal from the RNC. After encountering optical-to-electrical conversion, SDH service processing, and demapping, theSTM-1 signal becomes an E1 signal. Emulation and service switch-ing are performed on the E1 signal.

FIGURE 79 APPLIED SCENARIO OF A R4CSB BOARD (UNI SIDE)

NNI Side As shown in Figure 80, a R4CSB (ML-PPP) board encapsulates thecustomer service from the access side, and transfers it to the con-vergency side. The R4CSB (ML-PPP) board converges TDM E1 ser-vices and transfers them to the convergency-side equipment.



FIGURE 80 APPLIED SCENARIO OF A R4CSB BOARD (NNI SIDE)

10.5 Applied Scenarios of a R4GWBoardA R4GW board provides four STM-1 interfaces or one STM-4 inter-face. A R4GW board operates in UNI mode, implementing inter-working between a device and an MSTP device.

As shown in Figure 81, the R4GW board provides an interface con-necting the network with the SDH network to implement serviceinterworking between the network and the SDH network.

FIGURE 81 APPLIED SCENARIO OF A R4GW BOARD

10.6 Applied Scenarios of aR16E1F BoardA R16E1F board provides 16 E1 interfaces, implementing E1 sig-nal access and processing. With different download and runningsoftware programmes, R16E1F boards are divided into two types,R16E1F (TDM+IMA) and R16E1F (ML-PPP). A R16E1F (TDM+IMA)


Chapter 10 Board Typical Application

board operates at the UNI side, while a R16E1F (ML-PPP) boardoperates at the NNI side.

UNI Side A R16E1F (TDM+IMA) board accesses and processes TDM/IMA E1services. As shown in Figure 82, equipment accesses the voiceservice of the RNC with the R16E1F (TDM+IMA) board, processesthe voice service, and sends it out with line-side boards.

FIGURE 82 APPLIED SCENARIO OF A R16E1F BOARD (UNI SIDE)

NNI Side A R16E1F (ML-PPP) board transfers ML-PPP E1 services. As shownin Figure 83, the R16E1F (ML-PPP) board performs ML-PPP proto-col processing and PWE3 encapsulation on a service message, andtransfers the service to the connected SDH/SONET network to im-plement transmission of the ML-PPP E1 service in the SDH/SONETnetwork.

FIGURE 83 R16E1FAPPLIED SCENARIO OF A R16E1F BOARD (NNI SIDE)


Chapter11 Interfaces


>> Service Interface>> External Interface

11.1 Service Interfacesupports the following service interfaces as shown in Table 130.

TABLE 130 SERVICE INTERFACE TYPE

Place Name ID Type

R1EXG 10GE opticalinterface

T, R LC (adopt XFP opticalmodule)

R8EGF GE opticalinterface

T1 ~ T8, R1 ~R8

LC (adopt SFP opticalmodule)

R8EGE GE electricinterface

1 ~ 8 RJ45

R4EGC GE opticalinterface, GEelectric interface

1 ~ 4; T1 ~T4, R1 ~ R4

LC (adopt SFP opticalmodule), RJ45

R4CSB STM-1/STM-4optical interface

T1 ~ T4, R1 ~R4


R4ASB STM-1 opticalinterface

T1 ~ T4, R1 ~R4


R16E1F E1 interface 1 ~ 8, 9 ~ 16 Bent PCB solderingsocket

R4GW STM-1/STM-4optical interface

T1 ~ T4, R1 ~R4


R4CPS STM-1/STM-4optical interface

T1 ~ T4, R1 ~R4


R8FEI FE electricinterface

1 ~ 8 RJ45

R8FEF FE opticalinterface

T1 ~ T8, R1 ~R8


R4GCG GE electricinterface, GEoptical interface

1 ~ 4; T1 ~T4, R1 ~ R4

RJ45, LC (adopt SFPoptical module)



Place Name ID Type

R16T1F T1 interface 1 ~ 8，9 ~ 16 Bent PCB solderingsocket

R1GNE Qx interface Qx RJ45

11.2 External InterfaceThe external interfaces provided by the all board of are listed inTable 131.

TABLE 131 EXTERNAL INTERFACES PROVIDED BY THE ALL BOARD OF

Inter-facename

Usage Position Sink-scr-een

In-ter-facetype

Remark

Qx In-terface

By Qx, canmanagedeviceremotely.

one ofthe Qxinterfaceis locatedin theR1GNEboardpanel, theother islocated inthe switchcontrolclock unitpanel.

Qx RJ45 provides twoexternal Qxinterfaces.

LocalCraftTermi-nal In-terface

By local craftterminalinterface,can performopening andmaintenanceof localnetworkelement.

LCTinterfaceis locatedin theswitchcontrolclock unit.

LCT RJ45 provides oneexternal LCTinterface.

DebugInter-face

By debuginterface,canconnect thebackstagemanagementterminaland can beoperated andmaintainedthroughhyper-terminal.

Debuginterfaceis locatedin themaincontrolswitchclock unit.

CON RJ45 CON interfaceconnects theCOM port ofbackstagemanagementterminal throughserial electriccable.


Chapter 11 Interfaces

Inter-facename


In-ter-facetype

Remark

Sub-rackAlarmOutputInter-face

By thisinterface ,can:

Connectthecabinetalarmlightpanelthroughoutputcable, toshow theworkingstateof thedevice.

Real-ize thealarmtype ofurgencyandprinci-ple/sec-ondly.

Theinterfaceis locatedin themaincontrolswitchclock unit.

ALM_OUT

RJ45 provides3 output ofalarm signal.

supportsreal-timeclassificationvoice andoptical alarmoutput andcontrolling.

Sub-rackAlarmInputInter-face

By this in-terface, canrealize ex-ternal alarm(smoke, en-trance alarm,fire alarm,tempera-ture) signalinput.

Theinterfaceis locatedin switchcontrolclock unit.

ALM_IN

RJ45 provides 4external alarmsignal (switchingvalue signal)input.

LAMPInter-face

By thisinterface,can realizethe systemreal-timeclassifiedvoice andoptical alarmoutput andcontrolling.


LAMP RJ45 can:

support 4type of voiceand opticalalarm output(normal,secondly,principle andurgency).

supportring soundalarm signaloutput.



Inter-facename


In-ter-facetype

Remark

Ex-ternalClockInputandOutputInter-faces

By thisinterface,can input oroutput theclock signal.

Theinterfaceis locatedin theswitchcontrolclock unitpanel.

Tx

Rx

SMBCo-axialsoc-ket

supports 75 Ωclock input andoutput interface.

TimeInter-face

By thisinterface,can input oroutput thetime signal.


GPS-_IN,GPS_OUT

RJ45 can:

support 2 in-put of phasesynchroni-zation infor-mation andimplicit timevalue (theTOD), for re-ceiving theclock syn-chronizationinformation.

support 1 in-put of phasesynchroni-zation infor-mation andimplicit timevalue (theTOD), forsending theclock syn-chronizationinformation.


Chapter12 Networking Application


>> Service Networking Application>> Integrated Service Application

12.1 Service NetworkingApplicationsupports diverse service application scenarios, including the appli-cation of MPLS L2 VPN, TDM and ATM.

12.1.1 MPLS L2 VPN Application

MPLS L2 VPN (L2 VPN for short hereinafter) refers to the L2 VirtualPrivate Network (VPN) based on the Multi Protocol Label Switching(MPLS) network to transparently transmit the user's L2 data overthe MPLS network.

In accordance with the different service types, L2 VPN is classifiedinto VPWS and VPLS.

For the corresponding NMS configuration of the VPWS service, re-fer to Table 132.

TABLE 132 VPWS SERVICE NMS CONFIGURATION

L2 VPNService

Service Type Corresponding NMS Service Type

Ethernet Private Line (EPL)VPWS Point-to-pointservice

Ethernet Virtual Private Line (EVPL)

– The difference between EPL service and EVPL service is that EVPL usersneed to share the link bandwidth.

For the corresponding NMS configuration of VPLS service, refer toTable 133.



TABLE 133 NMS CONFIGURATION OF VPLS SERVICE

L2VPNServ-ice

Service Type Corresponding NMS Service Type

Ethernet Private LAN (EPLAN)Multipoint-to-multipointservice Ethernet Virtual Private LAN (EVPLAN)

Ethernet Private Tree (EPTREE)

VPLS

Multi-point-to-pointconvergenceservice

Ethernet Virtual Private Tree (EVPTREE)

– The difference between EPLAN service and EVPLAN service is that EVPLANservice users need to share the link bandwidth.

– The difference between EPTREE service and EVPTREE service is that EVPTREEservice users need to share the link bandwidth.

12.1.1.1 EPL Networking Application

Ethernet Private Line (EPL) has two service access points, used totransmit Ethernet MAC frames of user point-to-point transparently.Each EPL service can contain one Customer Interface Point (CIP)and one Virtual Interface Point (VIP) respectively on source nodeand sink node. EPL services are carried on private tunnels. Differ-ent services cannot share UNI interface, CIP, VIP, PW and tunnel.L2 switching function and MAC learning capability are not neededfor point-to-point transmission.

Figure 84 shows a typical EPL service networking application. Eth-ernet service Fast Ethernet (FE) between users CE1 and CE2 aretransparently transmitted through devices NE1 and NE10 and in-termediate sites NE2, NE4, NE5, NE6, NE7 and NE9.


Chapter 12 Networking Application

FIGURE 84 EPL SERVICE NETWORKING APPLICATION DIAGRAM

12.1.1.2 EVPL Networking Application

The essential difference between EVPL and EPL lies in that as forthe former, different services can share the same UNI port. There-fore, VLAN ID or other mechanisms shall be used to distinguishdata of different users. Each EVPL service contains one CIP andone VIP on source node and sink node. Different services cannotshare CIP, VIP and PW. Tunnel can be shared or used exclusivelyin service transmission. To provide different service qualities todifferent users, it needs to adopt corresponding QoS mechanism.EVPL is also a point-to-point service.

Figure 85 shows a typical EVPL service networking diagram.Services FE1 and FE2 between users CE1 and CE2 are accessedthrough UNI ports of PE nodes NE1 and NE10. FE1 and FE2 areisolated through VLAN's, allocated with exclusively used CIPs,VIPs and PWs, and transmitted through tunnel between NE2,NE4, NE5, NE6, NE7 and NE9.



FIGURE 85 EVPL SERVICE NETWORKING APPLICATION DIAGRAM

12.1.1.3 EVPLAN Networking Application

From the point of view of user, EVPLAN makes carrier network looklike one LAN. The essential difference between EPLAN and EVPLANservices is that as for the former, UNI port can be shared and tun-nel can be shared or used exclusively in service transmission. EV-PLAN owns specific bandwidth attribute, protection attribute andavailability attribute, as well as MAC learning capability and dataforwarding capability.

Figure 86 shows a typical EVPLAN service networking diagram.Services FE1 and FE2 between users CE1, CE2 and CE3 are ac-cessed through UNI ports of PE nodes NE1, NE2 and NE11. FE1and FE2 are isolated through VLAN's, allocated with exclusivelyused CIPs, VIPs and PWs, and transmitted through the same tun-nel, thus implementing isolation of services FE1 and FE2.



FIGURE 86 EVPLAN SERVICE NETWORKING APPLICATION DIAGRAM

12.1.1.4 EPLAN Networking Application

EPLAN belongs to multipoint-to-multipoint Ethernet service. Twoor more points are involved for service connectivity. Each EPVLANservice can contain multiple Customer Interface Point CIPs andVirtual Interface Point VIPs on source node and sink node. EPVLANservices are carried on private tunnels. Different services cannotshare UNI interface, CIP, VIP, PW and tunnel. Since multiple nodesare involved, it is needed to forward data based on MAC addressesand thus MAC learning function and L2 switching capability arenecessary.

Figure 87 shows a typical EPLAN service networking diagram. Ex-clusive UNI ports are used on PE nodes NE1, NE2 and NE11 forFE1 service among users CE1, CE2 and CE3. 1 CIP and 2 VIPs areenabled on each PE node. PW and tunnel are exclusively used intransmission. FE2 service among users CE1, CE2 and CE3 is sim-ilar to FE1 service except for different UNI port, CIP, VIP, PW andtunnel.



FIGURE 87 EPLAN SERVICE NETWORKING APPLICATION DIAGRAM

12.1.1.5 EPTREE Networking Application

EPTREE is a point-to-multipoint service. Two or more points areinvolved for service connectivity. In the topology structure, multi-ple point-to-point connections converge on one Ethernet physicalinterface of a central node. Where central node is the root nodeand other nodes are leaf nodes. Leaf node can only communicatewith root node and leaf nodes cannot intercommunicate.

Each EPTREE service can contain multiple CIPs and VIPs on sourcenode and sink node. EPVLAN services are carried on private tun-nels. Different services cannot share UNI interface, CIP, VIP, PWand tunnel. L2 switching function and MAC learning capability arenot needed for point-to-point transmission.

Figure 88 shows a typical EPTREE service networking application.Services FE of users CE1 and CE2 converge on core switch NE5through network. On convergence node NE5, CIP port is the root



node and ports VIP1 and VIP2 are leaf nodes. On NE1 and NE10,CIP port is the root node and VIP port is leaf node.

FIGURE 88 EPTREE SERVICE NETWORKING APPLICATION DIAGRAM

12.1.1.6 EVPTREE Networking Application

Services FE of users CE1 and CE2 are aggregated to core switchNE5 through network. On convergence node NE5, CIP port is theroot node and ports VIP1 and VIP2 are leaf nodes. On NE1 andNE10, CIP port is the root node and VIP port is leaf node.

Figure 89 shows a typical EVPTREE service networking applica-tion. Services FE1 and FE2 of users CE1 and CE2 converge oncore switch NE5 through network. Services FE1 of users CE1 andCE2 converge on UNI port of NE5 and services FE2 of users CE1and CE2 converge on UNI port of NE5. On convergence node NE5,CIP1和CIP2 of NE5 are used as root node and VIP1, VIP2, VIP3 andVIP4 are used as leaf nodes. On NE1 and NE10, ports CIP1 andCIP2 are used as root node and ports VIP1 and VIP2 are used asleaf nodes. Services are isolated through VLAN tags on UNI port.



FIGURE 89 EVPTREE SERVICE NETWORKING APPLICATION DIAGRAM

12.1.2 TDM Service NetworkingApplication

provides E1 tributary simulation board for accessing TDM E1 ser-vice.

Figure 90 shows a typical TDM service networking diagram, wherecommunication route is established among NE1, NE2, NE3 andNE4. Make voice private line service between company1 and com-pany2 access NE2 and NE3 respectively and mobile service ac-cess NE2 and NE3. Aggregate user services to central node NE1through network and make NE1 upsend mobile service to conver-gence layer.



FIGURE 90 TDM SERVICE NETWORKING APPLICATION DIAGRAM

12.1.3 ATM Service NetworkingApplication

provides E1 tributary simulation board for accessing IMA E1 ser-vice.

Figure 91 shows a typical ATM service networking diagram. Es-tablish one new communication route among NE1, NE2, NE3 andNE4. Make IMA E1 service access NE2, NE3 and NE4 respectivelyand transmit voice or data services. Aggregate user services tocentral node NE1 through network and make NE1 upsend serviceto distribution layer.



FIGURE 91 ATM SERVICE NETWORKING APPLICATION DIAGRAM

12.2 Integrated Service Applicationis suitable for diverse integrated networking solutions because ofits flexible functions, including mobile Backhaul, fixed mobile con-vergence FMC, LTE, offload and IP RAN.

12.2.1 Mobile Backhaul

is located on the access layer of metropolitan area transmissionnetwork. It can be used with other equipment on ZTE convergencelayer to form a hybrid network to transmit the information betweenthe base station and base station controller.

Using general packet switch as the core, provides various inter-faces, and supports multiple services, and fully meets bearing de-mands of the mobile Backhaul.

Networking application of in mobile Backhaul is shown in Figure92. is applicable to access layer.



FIGURE 92 NETWORKING APPLICATION OF IN MOBILE BACKHAUL

The networking application of in mobile Backhaul has the followingfeatures:

Simulates various 2G/3G/LTE peer-to-peer services in Back-haul network through PWE3.

Supports efficient statistical multiplexing, meets the require-ments of long-term co-existence to guarantee the smooth evo-lution of the network.

Provides carrier-level network protection and end-to end hier-archical OAM to guarantee the high reliability of the Backhualservice.

Meets the various transmission requirements such as jitter anddelay of different levels of Backhaul services though serviceclassification, priority marking, queue scheduling, and peer-to-peer QoS deployment.

Supports synchronous Ethernet (G.8261) and IEEE 1588V2clock synchronization technology, and meets the peer-to-peerlock synchronization requirement of Backhaul network.

12.2.2 Fixed Mobile Convergence

With increasing of communication demand and hot-up of mar-ket competition, Fixed Mobile Convergence (FMC) is the inevitabletrend of communication industry. ZXCTN series products supportto integrate FMC in bearer network.

The network application of in FMC is shown in Figure 93. is appli-cable to the access layer.



FIGURE 93 NETWORK APPLICATION IN FMC

FMC application has the following features:

The unified carrier platform integrates multiple services andsupports multi-service interfaces.

It provides voice-based FMC and implements integration offixed network and 2G/3G.

It provides full IP-based FMC application and implements full-IP(IP Multimedia Subsystem) IMS.

The application provides SDH network reliability, supportspoint-to-point OAM and protection, shows high QoS/SLAsupport, and reduces Operating Expenditure (OPEX).

It supports Ethernet (G.8261) synchronization and IEEE 1588V2 clock synchronization technology.

12.2.3 Application at LTE NetworkStage

At Long Term Evolution (LTE) network stage, with shrink of 3G net-work and wide deployment of LTE network, mobile network struc-ture gets flat gradually. Meanwhile, broad bandwidth of servicesin mobile network is more obvious and downstream service trafficof mobile base station reaches 100 M or more.

ApplicationScheme

Comprehensive application of ZXCTN series products at LTE net-work stage is shown in Figure 94. is applicable to the access layer.



FIGURE 94 APPLICATION AT LTE NETWORK STAGE

ApplicationFeatures

Application at LTE network stage has the following features:

It meets the characteristics of flat LTE network in logic, adaptsto LTE service bearing, and meanwhile is completely compati-ble with 3G services.

It implements function distribution for LTE service networkand P2P characteristics, and supports L3 function and flexiblescheduling of X2 and S1.

It supports L1/L2/L3 function, meets the demand of carryingfull services, and implements Fixed Mobile Convergence (FMC).

The application provides SDH network reliability, supportspoint-to-point OAM and protection, shows high QoS/SLAsupport, and reduces OPEX.

It supports to synchronous Ethernet (G.8261) and IEEE 1588V2 clock synchronization technology.

It owns special signaling control plane, which make configura-tion of network and OAM more flexible.

12.2.4 Offload

With the gradual application and construction of the 3G networkand the future 4G network technology, the data traffic growsrapidly. supports Offload application, and can distribute datatraffic from wireless network to the fixed network with unlimited



bandwidth resources, to meet the daily increasing data bandwidthrequirements.

The network application of in the Offload program is as shown inFigure 95. is applicable to the access layer.

FIGURE 95 NETWORK APPLICATION OF IN OFFLOAD

The application of in the Offload program has the following fea-tures:

Converging the multi-service unified service platform, support-ing the multi-service interface

Supplying SDH-alike network reliability, supporting end-to-endOAM and protection, and high QoS/SLA support, and reducingOperating Expenditure (OPEX)

Supporting Network Time Reference (NTR) based recovery tim-ing as the system clock

Supporting xDSL-interface IEEE 1588v2 clock synchronization

12.2.5 Application of IP RAN Network

series products can be used in the IP RAN network to carry multipleservices. A typical IP RAN network diagram is shown in Figure 96.The application can be used for the reconstruction of existent basestations or building a new station.

L2 VPN is used for accessing the convergence layer, and the corelayer uses L3 VPN. The IP RAN network uses 1588 v2 technologyto provide time and frequency synchronization mechanism for thebase station.



FIGURE 96 IP RAN NETWORKING APPLICATION


Chapter13 Technical Performance


>> System Performance>> Physical Performance>> Power Consumption Indices>> Grounding Requirements>> Lightning Protection Requirements>> EMC Requirements>> Reliability Indexes>> Security Authentication Requirement>> Interface indices

13.1 System PerformanceFor system performance index, refer to Table 134.

TABLE 134 SYSTEM PERFORMANCE INDEX

Item Performanceindex

MAC address table size 32 K

MAC address learning speed 1500/s

MAC address filtering 1 K

VLAN number 4 K

SVLAN number 1 K

LAG group 32

Maximum port number of each LAGgroup

8

L2 multicast table 1 K

L2 multicast member number 16 k

L2 multicast add-in and leave-off time 50/s

MSTP entity number 16

L2 feature

MTU 9 kbyte




ARP table 16 K

ARP learning speed 200/s

IPv4 host routing table 16 K

IPv4 network segment routing table 16 K

L3 interface table 1 K

Size of LFIB 16 K

OSPF neighbor per node 64

OSPF area number per node 10

Maximum external route imported byOSPF

1 k

Maximum OSPF routers in a single area 200

Maximum number of OSPF routinginstances/processes

100

Maximum OSPF database entries 64 K

Maximum OSPF areas 50

IS-IS neighbor per node 64

Maximum number of ISIS single-levelnodes

256

Maximum number of IS-IS routinginstances/processes

100

Maximum IS-IS database entries 5000

BGP neighbor number per node 64

Maximum number of BGP instances 1

Maximum number of BGP sessions 256

Maximum PATH capacity 16 K

L3 feature

VRRP group number 128


Chapter 13 Technical Performance


100/1000Minterface: 64 K

Speed control granularity

10G interface:1 M

Traffic classification number 2 K

Maximum shaper number of each port 9 shapers areassigned foreach port (8queue shapersand one portshaper)

Queue number 8 per port

CAR entity 1 K

Traffic performance statistics 2 K

METER under traffic policing 1 K

Maximum abrupt packet size ≥2 Mbyte

Minimum device forwarding latency ≤20 us

Ingress ACL item 2 K

QoS

Egress ACL item 512

MPLS label range 16 - 1048275

VPWS 3 K

VPLS entity number 1 K

E-LINE 3 K

E-LAN 1 K

VPLS MAC 32 K

L3 VPN VRF entity 2046

Maximum RT number per VRF 8

VPN

GRE tunnel number 256/slot




Maximum capacity of label forwardinglist

8 K

LSP number 4 K

Identifier convergence and updatespeed

2000/s

PW number 4 K

LDP neighbor number 64

LDP LSP number 4 K

RSVP-TE LSP number 4 K

Ethernet OAM entity number 512

BFD link number 1 K

MPLS-TP OAM entity num-ber(TMC/TMP/TMS)

1 K

Maximum node protected by ring 16

MPLS-TP linear protection group 1:1 2K

1+1 512

ATM STM-1/Ch.STM-1 APS protectiongroup number

8

Time for active/standby switchover <50 ms

IMA E1 protocol processing(E1 number,IMA group number and membernumber)

64/16/16

ML-PPP E1 protocol processing (ML-PPPgroup and member number)

16/16

ML-PPP Ch.STM-1 protocol processing(ML-PPP group and member number)

63/16

Compensation for the latency of themember in ML-PPP virtual cascadinggroup

≥40 ms

Service Per-formance

Ch.VCG channel number of POSSTM-1/STM-4

8

Telnet user number 16NM Per-formance

Command operating log buffer 50 K

13.2 Physical PerformanceThe physical performance index of is shown in Table 135.



TABLE 135 PHYSICAL PERFORMANCE INDEX

Item PhysicalPerformance index

Subrack (height× width × depth)(without ear)

130.5 mm ×444 mm×240 mm

Equipment physicaldimensions

Subrack (height ×width × depth) (withear)

130.5 mm ×482.6 mm×240 mm

Weight <11 kg

Total slot number 9Slot number

Service slot 4

Noise <55 dB

Earthquake-resistance Resist earthquake ofmagnitude 9

13.3 Power Consumption IndicesThe power consumption and weights of boards/units are shown inTable 136.

TABLE 136 POWER CONSUMPTION LIST OF COMMON BOARDS

Board/Unit Name Code Maximum PowerConsumption

6200 Switch Control Clock Unit RSCCU2 70.0

1-Port Enhanced 10 Gigabit Ether-net Fiber interface Board R1EXG 25.0

8-Port Enhanced Gigabit EthernetFiber interface Board R8EGF 30.0

8-Port Enhanced Gigabit EthernetElectrical interface Board R8EGE 28.0

4-Port Enhanced Gigabit EthernetCombo interface Board R4EGC 21.0

4-Port Enhanced Gigabit EthernetCombo GRE interface Board R4GCG 21.0

8-Port Fast Ethernet Fiber inter-face Board R8FEF 23.0

8-Port Fast Ethernet Electrical in-terface Board R8FEI 18.0



Board/Unit Name Code Maximum PowerConsumption

1-Port Channelized STM-4 Board

4-Port Channelized STM-1 BoardR4CSB 23.0

4-Port ATM STM-1 Board R4ASB 15.0

4-Port STM-1 Gateway Board

1-Port STM-4 Gateway BoardR4GW 21.0

4-Port Channelized STM-1 PosBoard

1-Port Channelized STM-4 PosBoard

R4CPS 21.0

16-Port E1 board with Front inter-face Board R16E1F 16.0

16-Port T1 board with Front inter-face Board R16T1F 16.0

1-Port Gateway NE Board R1GNE 15.0

1-Port Optical Amplifier Board R1OA 10.0

6200 -48V Power DC Board RPWD2 12.0

Fan Board RFAN2 32.0

The power consumption varies with the configuration, and its max-imum value is 250 W. For the typical configuration of , the powerconsumption is shown in Table 137.

TABLE 137 POWER CONSUMPTION (TYPICAL CONFIGURATION)

ItemEquipmentModel/BoardCode

Unit Quantity

subrack (includingthe backplane)

- Set 1

Master ClockSwitching Board RSCCU2 PCS 2

Enhanced GigabitOptical Board R8EGF PCS 1

Enhanced GigabitElectric Board R8EGE PCS 1

Front Lead E1Board R16E1F PCS 1

Fan board RFAN2 PCS 1



ItemEquipmentModel/BoardCode

Unit Quantity

-48 V power board RPWD2 PCS 2

Actual Tested TotalPower Consump-tion

221 W

13.4 Grounding RequirementsRequirementsfor InternalGrounding of

Device

Each board in the device should be connected to the devicecover through its front panel. There should be no electricalconnection inside each board.

The covers of cabinet and subracks should be connected to theprotection ground.

Note:

Cabinet is connected to the copper ground busbar in the equip-ment room through the protection ground and thus maintains goodelectronic characteristics. Subrack is firmly fastened to the cabi-net back column for grounding.

Requirementsfor Grounding inEquipment Room

If the user equipment room adopts joint grounding, the groundresistances should be no more than 1 Ω.

When the user equipment room provides the working cop-per ground strap and protection copper ground strap re-spectively, working ground of is connected to the work-ing copper ground strap. Ground terminal of the protec-tion ground and the ground terminal at the left side of theequipment room are connected to the working ground bus-bar. Figure 97 takes the connection with DC power as anexample.



FIGURE 97 ELECTRIC POWER LINE AND GROUNDING CABLEDIAGRAM (JOINT GROUNDING)

When the user equipment room only provides one ground-ing busbar, the working ground, protection ground and thechassis shell of are all connected to the grounding copperbusbar. Figure 98 takes the connection with DC power asan example.

FIGURE 98 ELECTRIC POWER LINE AND GROUNDING CABLEDIAGRAM (JOINT GROUNDING)



Note:

When the is installed in the cabinet, the power cable is con-nected to the output port of the power supply of the cabinet,the protection cable is connected to the protection groundingbusbar.

If the user equipment room adopts independent grounding,the ground resistances should meet the requirements listed inTable 138.

TABLE 138 GROUNDING RESISTANCE REQUIREMENTS IN INDEPENDENTGROUNDING MODE

Item Resistance (Unit: Ω)

AC working ground resistance ≤4

DC working ground resistance ≤4

Protection ground resistance ≤4

Lightning protection groundresistance

≤4

The voltage between protection grounding terminals and work-ing ground terminals should be smaller than 50 mV.

When independent grounding is used in the user equipmentroom, the working ground of the equipment is connected to theDC working ground, and the protection ground is connected tothe safety protection ground, as shown in Figure 99.

FIGURE 99 ELECTRIC POWER LINE AND GROUNDING CABLE DIAGRAM(INDEPENDENT GROUNDING)

Copper busbar with cross section area no less than 120 mm2

shall be used as grounding busbar or grounding bar for ground-ing. Galvanized flat steel with the dimension not less than 40mm×4 mm can also be used.



Be sure to use copper lugs, bolts and spring washers to fastenthe connections between the device grounding cable and thegrounding busbar or grounding bar. One bolt can only be usedto connect one grounding cable. Determine the dimension ofgrounding busbar and the number of screws according to thenumber of grounding cables of devices in computer room.

Note:

If the equipment room provides working ground and protectiveearth separately, the working ground and protective earth of thedevice shall be connected to corresponding grounding copper bus-bar. If the equipment room provides only one grounding copperbusbar, the working ground and protective earth of the device canbe jointed for grounding. The ground resistance shall meet theabove requirements.

13.5 Lightning ProtectionRequirementsTable 139 describes typical lightning protection classes of powersupplies of communication devices.

TABLE 139 TYPICAL PROTECTION CLASSES OF POWER SUPPLY LIGHTNING

LightningProtection Class

Indexes Location ofLightningProtection Circuit

Class B (Class I) 40 kA (8 μs /20 μs) AC Power DistributionPanel/Box

Class C (Class II) 20 kA (8 μs /20 μs) DC Power SupplyCabinet

Class D (Class III) 6000 V (combinationwave)

-48 V Power Rectifier

LightningProtection

Requirements forPower Supply in

Central EquipmentRoom

Lead AC power cables underground into the equipment room.

Because AC power distribution panel and DC power cabinetmay be placed in the same equipment room, the distance be-tween Class B and Class C lightning arrestors must meet thefollowing decoupling distance requirements:

If the protection ground cable is laid independently, thedistance between Class B and Class C lightning protectionarrestors shall not be not less than 5 m.

If the protection ground cable and power cable are laid inparallel, the distance between Class B and Class C lightningprotection arrestors shall be not less than 15 m.

If the required decoupling distance cannot be met due to re-stricted conditions in the equipment room, install additional



decoupling inductance(s) before the Class C lightning arrestorby 1.5 H/m.

The ground cables of Class B and Class C lightning arrestorsshould employ stranded copper wires with cross section areasno less than 95 mm2 to connect with Main Earthing Terminal(MET) or Floor Equipotential earthing terminal Board (FEB).Keep the length of ground cables as short as possible.

Requirementsfor LightningProtection of

Devices

Connect the protection ground cable of subrack installed in acabinet to the protection ground busbar in the cabinet. Usestranded copper wire with cross section area no less than 16mm2 for the protection ground cable of the cabinet, and con-nect the protection ground with the ground busbar or groundbar (including column-head power cabinet).

Short-circuit the protection ground of the transmission devicewith the DC power ground, and then connect the protectionground to the protection ground busbar in the cabinet if thedevice is powered by DC power source.

Do not lead the protection ground of the transmission deviceout of the cabinet and directly connect it to the ground busbaror ground bar (including column-head power cabinet) in theequipment room.

The requirements of lightning protection refer to Table 140.

TABLE 140 REQUIREMENTS OF LIGHTNING PROTECTION

Lightning ProtectionPort Requirements Index

Input port of DC powersupply 2 kV (1.2 µs/50 µs)

Inputting/outputtingport of signal 1 kV (1.2 µs/50 µs)

13.6 EMC RequirementsThe requirements of EMC is listed in Table 141.

TABLE 141 EMC REQUIREMENTS

Items Standard

ESD Comply with IEC 61000-4-2,GB/T 17626.2 and GR-1089

Radiated Susceptibility (RS)Immunity

Comply with IEC 61000-4-3,GB/T 17626.3



Items Standard

DC Power Port Immunity(Direct Coupling)

Comply with IEC 61000-4-4,GB/T 17626.4.

AC Power Port Immunity(Direct Coupling)


Electri-cal FastTran-sient(EFT)Immun-ity Signal Cable Port

and Control CablePort Immunity (WithCapacitive CouplingClamp)


Lightningsurgeimmunityindexes of DCpower supply


Light-ningSurgeImmun-ity

Light-ningSurgeImmun-ity ofPowerSupply Lightning

surgeimmunityindexes of ACpower supply


CS (Conducted Susceptibility)Immunity


Voltage Dip and Short InterruptionImmunity

This item only applicable to DCpower supply，comply with IEC61000-4-11, GB/T 17626.11.

Voltage Fluctuation and FlickerImmunity

Comply with IEC 61000-3-2、IEC 61000-3-3, GB/T 17625.1and GB/T 17625.2.

conducted emissionInter-ferencePerform-ances

radiated emission

The indexes conform to ClassA requirements specified byCISPR22.

13.7 Reliability Indexesreliability indexes include product lifetime, board failure rate,Mean Time to Recovery (MTTR), and Mean Time Between Failures(MTBF).

reliability indexes are shown in Table 142.

TABLE 142 RELIABILITY INDEXES

Item Indicator Requirement

Product lifetime No less than 20 years

Board failure rate Less than 0.2％

MTTR Less than 0.5 hours



Item Indicator Requirement

MTBF 236865.99 hours

Reliability ≥99.999%

Hot pluggable All boards are hot pluggable,rather than interface sub-modules

Redundancy backup for maincontrol

1+1 redundancy

Redundancy backup for powersupply

DC 1+1 redundancy

Heat dissipation Heat load with full capacity(BTU/h): 1024

13.8 Security AuthenticationRequirementcomplies with the security authentication requirements listed inTable 143.

TABLE 143 SECURITY AUTHENTICATION REQUIREMENTS

Authentication Items Authentication Standards

CISPR 22 Class A

EN55022 Class A

ETSI EN 300386

FCC Part 15

GB/T 9254 Class A

EN 61000-4-2

EN 61000-4-3

EN 61000-4-4

EN 61000-4-5

EMC

EN 61000-4-6

IEC 60950-1

EN 60590-1

UL 60950-1

Security

GB/T 4943



Authentication Items Authentication Standards

IEC 60825-1

IEC 60825-2

EN 60825-1

EN 60825-2

Laser security

GB/T 7247

ISO 3744

ETS 300 753

IEC 60068-2-1

IEC 60068-2-2

IEC 60068-2-6

IEC 60068-2-14

IEC 60068-2-29

Environmental protection

IEC 60068-2-78

13.9 Interface indicesE1 interface electric performance is shown in Table 144.

TABLE 144 E1 INTERFACE ELECTRIC PERFORMANCE

Type Performance


Code pattern HDB3 (High Density Bipolar 3code)

Allowable attenuation of inputinterface (attenuation in squareroot pattern)

0 dB ~ 6 dB, 1024 kHz

Allowable frequency deviation ofinput interface

±50 ppm

Bit rate error tolerance of outputinterface

<±50 ppm

Output interface jitter Compliant with the Table 1/Figure1 in ITU-T G823

Output signal waveform Compliant with the templatespecified in ITU-T G.703

Anti-interference capability ofinput interface (S/N)

18 dB



Type Performance

Input jitter and wander tolerance Compliant with the Figure 13 inITU-T G823

Reflection attenuation Compliant with the Chapter 9.3 ofITU-T G.703

STM-1 optical interface performance is shown in Table 145.

TABLE 145 STM-1 OPTICAL INTERFACE PERFORMANCE

Type Performance

Nominal rate 155520 kbit/s　

Code pattern NRZ scrambling codes (scrambling codes to meet theITU-T G.707 requirements for seven synchronizationscrambler scrambling code)

Optical type S1.1 L1.1 L1.2

wavelength(nm)

1310 nm 1310 nm 1550 nm


<15 km <40 km <80 km

Connector LC/PC LC/PC LC/PC

Meantransmittingpower

-15 ~ -8 dBm -5 ~ 0 dBm -5 ~ 0 dBm


8.2 dB 10.2 dB 10.2 dB

Receiversensitivity

-28 dBm -34 dBm -34 dBm

Receiveroverload opticalpower

-8 dBm -10 dBm -10 dBm

Allowablefrequencydeviation ofoptical inputinterface

±20 ppm

AIS rate ofoptical outputinterface

Within ±20 ppm

STM-4 optical interface performance is shown in Table 146.



TABLE 146 STM-4 OPTICAL INTERFACE PERFORMANCE

Type Performance

Nominal rate 622080 kbit/s

Code pattern NRZ scrambling codes (scrambling codes to meet theITU-T G.707 requirements for seven synchronizationscrambler scrambling code)

Optical type S4.1 L4.1 L4.2

wavelength(nm)

1310 nm 1310 nm 1550 nm


<15 km <40 km <80 km

Connector LC/PC LC/PC LC/PC

Meantransmittingpower

-15 ~ -8 dBm -3 ~ 2 dBm -3 ~ 2 dBm


8.2 dB 10 dB 10 dB

Receiversensitivity

-28 dBm -28 dBm -28 dBm

Receiveroverload opticalpower

-8 dBm -8 dBm -8 dBm

Allowablefrequencydeviation ofoptical inputinterface

±20 ppm

AIS rate ofoptical outputinterface

Within ±20 ppm

10/100/1000Base-TX interface electric performance is shown inTable 147.

TABLE 147 10/100/1000BASE-TX INTERFACE ELECTRIC PERFORMANCE

Type performance

Standard compliance IEEE 802.3z

Nominal rate 10/100 Mbit/s

10 Mbit/s Manchester EncodingPattern

100 Mbit/s MLT-3 Encoding

Interface RJ45



Type performance

Maximum transmission distance 100 m

Transmission medium Use CAT 5 unshieldedtwisted pair (UTP)

GE interface optical performance is shown in Table 148.

TABLE 148 GE INTERFACE OPTICAL PERFORMANCE

Type performance

Nominalrate

1000 Mbit/s

Interfacetype

1000BA-SE-SX

(0.5 km)

1000BA-SE-LX

(10 km)

1000BA-SE-LH

(40 km)

1000BA-SE-ZX

(80 km)

Connectortype

LC LC LC LC

Fiber type multimodefiber

single modefiber

single modefiber

single modefiber

wavelength(nm)

850 1310 1310 1550

Transmit-ting powerrange(dBm)

-9.5 ~ -4 -9 ~ -3 -4 ~ 5 0 ~ 5

receivingsensitivity(dBm)

≤-17 ≤-20 ≤-22 ≤-22

10GE interface optical performance is shown in Table 149.

TABLE 149 10GE INTERFACE OPTICAL PERFORMANCE

Type performance

Nominalrate

10000 Mbit/s

Interfacetype

10GBA-SE-SR

(0.3 km)

10GBA-SE-LR

(10 km)

10GBA-SE-ER

(40 km)

10GBA-SE-ZR

(80 km)

Connectortype

LC LC LC LC

Fiber type multimodefiber

single modefiber

single modefiber

single modefiber

wavelength(nm)

850 1310 1550 1550



Type performance

Transmit-ting powerrange(dBm)

-7.3 ~ -1 -5 ~ -1 0 ~ 2 1 ~ 4

receivingsensitivity(dBm)

≤-11.1 ≤-14 ≤-16.5 ≤-26


Chapter14 EnvironmentRequirements


>> Power Supply Requirement>> Operation Environment>> Transportation Environment>> Storage Environment

14.1 Power Supply Requirementsupports DC -48 V power supply. For the requirement for devicepower supply refer to Table 150.

TABLE 150 REQUIREMENT FOR DEVICE POWER SUPPLY

PowerSupplyModuleName

InputVoltage(V)

VoltageFluctuationRange (V)

MaximumInputCurrent(A)

MaximumOutputPower(W)

MaximumPowerConsump-tion ofthe In-tegratedEquip-ment (W)

FuseSpecifica-tion (A)

RPWD2 -48 DC -40.0 DC ~–59.5 DC 7.5 300 < 200 8

14.2 Operation EnvironmentClimate

RequirementThe temperature and relative humidity requirements during theoperation of the equipment are listed in Table 151. The other cli-mate requirements are listed in Table 152.

TABLE 151 TEMPERATURE AND HUMIDITY REQUIREMENTS (OPERATIONENVIRONMENT)

Item Requirement

Long term running: –5 to +50 Ambient temperature

Short term running: –10 to +55

Long term running: 5% to 90%Relative Humidity(non-congealing)

Short term running: 5% to 95%



– The temperature and humidity are measured 1.5 m above the floor and 0.4m in front of the equipment.

– Short term running means that the equipment works continuously for nomore than 96 hours and works for no more than 15 days in one year.

TABLE 152 REQUIREMENTS FOR CLIMATE (OPERATION ENVIRONMENT)

Item Specifications

Altitude ≤ 4000 m

Air pressure 70 kPa to 106 kPa

Temperature variance ratio ≤ 1 /min

Solar radiation ≤ 1120 W/s2

Thermal radiation ≤ 600 W/s2

Wind speed ≤ 20 m/s

BiologyEnvironment

Avoid the propagation of animalcules, such as fungi and mold.

Prevent rodents, such as mice.

Air CleannessRequirement

There should be no explosive, electrically conductive, magnet-ically conductive or corrosive dust in the equipment room.

The concentration of mechanical active materials in the trans-portation environment shall meet the requirements in Table153.

TABLE 153 REQUIREMENTS FOR CONCENTRATION OF MECHANICALACTIVE MATERIALS IN TRANSPORTATION ENVIRONMENT (OPERATIONENVIRONMENT)

Mechanical Active Substance Concentration

Dust particle ≤3×105 particle/m3

Suspended dust ≤5.00 mg/m3

Degraded dust ≤20.0 mg/m2 h

Sand ≤300 mg/m3

Active chemical substance density meets the requirements inTable 154.

TABLE 154 REQUIREMENTS FOR CONCENTRATION OF CHEMICAL ACTIVEMATERIALS (OPERATION ENVIRONMENT)

Chemical Active Substance Concentration (mg/m3)

SO2 ≤ 0.30

H2S ≤ 0.10


Chapter 14 Environment Requirements

Chemical Active Substance Concentration (mg/m3)

NO2 ≤ 0.50

NH3 ≤ 3.00

Cl2 ≤ 0.10

HCl ≤ 0.10

HF ≤ 0.01

O3 ≤ 0.05

NOx ≤ 0.50

14.3 Transportation EnvironmentClimate

RequirementTable 155 lists the requirements for climate during the transporta-tion of .

TABLE 155 REQUIREMENTS FOR CLIMATE (TRANSPORTATION ENVIRONMENT)

Item Specifications

Altitude ≤4000 m


Temperature -50 to +70

Temperature variance ratio ≤1 /min

Relative humidity 10% to 100%

Solar radiation ≤1120 W/s2

Hot radiation ≤600 W/s2

Wind speed ≤20 m/s

WaterproofRequirement

Ensure that the packing of the equipment is in good conditionwithout any damages.

The transportation tool should have rainwater-proof measures,so that the rainwater will not damage the pack of the equip-ment.

If the equipment should be stored outside, the requirementsare listed as follows:

Ensure that the packing of the equipment is in good condi-tion without any damages.

Rainwater-proof measures should be taken, so that therainwater will not damage the pack of the equipment.

Ensure there is no water in the transportation tool.



BiologyEnvironment

Avoid the propagation of microorganism, such as fungi ormould.

Avoid rodent (such as mouse) to damage the equipment.



Table 156 lists the requirements for concentrations of mechan-ical active substances.

TABLE 156 REQUIREMENTS FOR CONCENTRATIONS OF MECHANICALACTIVE SUBSTANCES (TRANSPORTATION ENVIRONMENT)


Suspended dust No special requirements

Degraded dust ≤3.0 mg/m2•h

Sand ≤100 mg/m3

Table 157 lists the requirements for concentrations of chemicalactive substances.

TABLE 157 REQUIREMENTS FOR CONCENTRATIONS OF CHEMICAL ACTIVESUBSTANCES (TRANSPORTATION ENVIRONMENT)

Chemical Active Substance Concentration

SO2 ≤0.30 mg/m3

H2S ≤0.10 mg/m3

NO2 ≤0.50 mg/m3

NH3 ≤1.00 mg/m3

Cl2 ≤0.10 mg/m3

HCI ≤0.10 mg/m3

HF ≤0.01 mg/m3

O3 ≤0.05 mg/m3

14.4 Storage EnvironmentClimate

RequirementTable 158 lists the climate requirements for storing .

TABLE 158 REQUIREMENTS FOR CLIMATE (STORAGE ENVIRONMENT)

Item Specifications

Altitude ≤4000 m



Chapter 14 Environment Requirements

Item Specifications

Temperature -40 to +70

Temperature variance ratio ≤1 /min

Relative humidity 10% to 100%

Solar radiation ≤1120 W/s2

Hot radiation ≤600 W/s2

Wind speed ≤20 m/s

WaterproofRequirement

Store the equipment indoor.

Ensure that there is no water on the storage room floor, sothat the water will not leak on the packing container of theequipment.

The storage position should be far away from the possible leak-ing positions of the automatic fire fighting equipment and theheating system.

If the equipment should be stored outside, the requirementsare listed as follows:

Ensure that the packing of the equipment is in good condi-tion without any damages.

Rainwater-proof measures should be taken, so that therainwater will not damage the pack of the equipment.

Ensure there is no water on the floor or in the packingcontainer of the equipment.

Do not expose the packing to direct sunlight.

BiologyEnvironment

Avoid the propagation of microorganism, such as fungi ormould.

Avoid rodent (such as mouse) to damage the equipment.



Table 159 lists the requirements for concentrations of mechan-ical active substances.

TABLE 159 REQUIREMENTS FOR CONCENTRATIONS OF MECHANICALACTIVE SUBSTANCES (STORAGE ENVIRONMENT)


Suspended dust ≤5.00 mg/m3

Degraded dust ≤20.0 mg/m2•h

Sand ≤300 mg/m3

Table 160 lists the requirements for concentrations of chemicalactive substances.



TABLE 160 REQUIREMENTS FOR CONCENTRATIONS OF CHEMICAL ACTIVESUBSTANCES (STORAGE ENVIRONMENT)

Chemical Active Substance Concentration

SO2 ≤0.30 mg/m3

H2S ≤0.10 mg/m3

NO2 ≤0.50 mg/m3

NH3 ≤1.00 mg/m3

Cl2 ≤0.10 mg/m3

HCI ≤0.10 mg/m3

HF ≤0.01 mg/m3

O3 ≤0.05 mg/m3


Glossary

2GThe 2nd Generation Mobile Communications

3GThe 3rd Generation Mobile Communications

ACLAccess Control List

ACRAdaptive Clock Recovery

AISAlarm Indication Signal

APSAutomatic Protection Switching

ARPAddress Resolution Protocol

ASAutonomous System

ASBRAutonomous System Boundary Router

ATMAsynchronous Transfer Mode

BCBoundary Clock

BFDBidirectional Forwarding Detection

BGPBorder Gateway Protocol

BITSBuilding Integrated Timing Supply

BMCBest Master Clock

BTSBase Transceiver Station

CACConnection Admission Control

CARCommitted Access Rate

CBSCommitted Burst Size

CCContinuity Check

CCMContinuity Check Message



CEContent Encryption

CESCircuit Emulation Service

CFMConnectivity Fault Management

CIPCustomer Interface Point

CIRCommitted Information Rate

CLICommand Line Interface

CPUCentral Processing Unit

CSConducted Susceptiblility

CSFClient Signal Failure

DCDirect Current

DCCData Communications Channel

DCNData Communications Network

DHCPDynamic Host Configuration Protocol

DMDelay Measurement

DNIDual Node Interconnection

DRDesignated Router

DSDifferentiated Service

DS-TEDiffserv-aware MPLS Traffic Engineering

DSCPDifferentiated Services Code Point

DUDownstream Unsolicited

DWRRDeficit Weighted Round Robin

DiffServDifferentiated Service

E2EEnd-to-End

EBGP


Glossary

External Border Gateway Protocol

EBSExcess Burst Size

ECMPEqual-Cost Muti-Path routing

EDFAErbium Doped Fiber Amplifier

EFMEthernet in the First Mile

EFTElectrical Fast Transient

EIRExcess Information Rate

EMCElectromagnetic Compatibility

EMSElement Management System

EPLEthernet Private Line

EPLANEthernet Private LAN

EPTREEEthernet Private Tree

ESDElectrostatic Discharge

ETH-CCEthernet Continuity Check

ETH-LBEthernet Loopback

ETH-LTEthernet Link Trace

ETSEuropean Telecommunication Standard

ETSIEuropean Telecommunications Standards Institute

EVPLEthernet Virtual Private Line

EVPLANEthernet Virtual Private LAN

EVPTREEEthernet Virtual Private Tree

EXPExperimental Overhead

EXPExperimental

FCCFederal Communication Commission



FCSFrame CheckSequence

FEFast Ethernet

FEBFloor Equipotential earthing terminal Board

FECForwarding Equivalence Class

FMCFixed Mobile Convergence

FRRFast Reroute

GEGigabit Ethernet

GFP-FFrame-mapped GFP

GMCGrandmaster Clock

GPSGlobal Positioning System

GRGraceful Restart

GREGeneral Routing Encapsulation

H-VPLSHierarchy of VPLS

HDB3High Density Bipolar of order 3

HSBHot Standby

IBGPInterior Border Gateway Protocol

ICMPInternet Control Message Protocol

IECInternational Electrotechnical Commission

IEEEInstitute of Electrical and Electronics Engineers

IGMPInternet Group Management Protocol

IGPInterior Gateway Protocol

IMAInverse Multiplexing over ATM

IMSIP Multimedia Subsystem

IP


Glossary

Internet Protocol

IPHBIncoming PHB

IPv4Internet Protocol version 4

IS-ISIntermediate System-to-Intermediate System

IS-IS-TEIntermediate System-to-Intermediate System-Traffic Engineering

ISOInternational Organization for Standardization

ITU-TInternational Telecommunication Union - Telecommunication Stan-dardization Sector

IVLIndependent Vlan Learning

L1Layer 1

L2Layer 2

L3Layer 3

LACPLink Aggregation Control Protocol

LAGLink Aggregation Group

LANLocal Area Network

LBLoopback

LCKLocked

LCTLocal Craft Terminal

LDPLabel Distribution Protocol

LFIBLabel Forwarding Information Base

LLDPLink Layer Discovery Protocol

LLDPDULink Layer Discovery Protocol Data Unit

LMLoss Measurement

LSALink State Advertisement

LSDB



Link-state Database

LSPLabel Switched Path

LSRLabel Switch Router

LTLink Trace

LTELong Term Evolution

MACMedium Access Control

MC-APSMulti-Chassis Automatic Protection Switching

MC-LAGMulti-Chassis Link Aggregation Group

MC-MSPMulti-Chassis Multiplex Section Protection

MCCManagement Communication Channel

MD5Message Digest 5 Algorithm

MEDMULTI_EXIT_DISC

MEGMaintenance Entity Group

MELMEG Level

MEPMEG End Point

METMain Earthing Terminal

MIBManagement Information Base

MIPMEG Intermediate Point

ML-PPPMultilink-Point to Point Protocol

MP-BGPMultiprotocol BGP

MPLSMultiprotocol Label Switching

MPLS-TPMulti-Protocol Label Switching Transport Profile

MS-PWMulti-Segment Pseudo Wire

MSPMultiplex Section Protection


Glossary

MSTPMultiple Spanning Tree Protocol

MTBFMean Time Between Failures

MTTRMean Time To Recovery

MTUMulti-Tenant Unit

MTUMaximum Transfer Unit

NATNetwork Address Translation

NBMANon-Broadcast Multiple Access

NMNetwork Management

NNINetwork Node Interface

NPENetwork Provider Edge

NRZNon-Return to Zero

NSSANot-So-Stubby Area

NTRNetwork Time Reference

OAMOperation, Administration and Maintenance

OBAOptical Booster Amplifier

OCOrdinary Clock

OLAOptical Line Amplifier

OPAOptical Pre-Amplifier

OPEXOperating Expenditure

OPHBOutgoing PHB

OSPFOpen Shortest Path First

OSPF-TEOpen Shortest Path First–Traffic Engineering

P2PPeer-to-Peer

PCB



Printed Circuit Board

PEProtective Earth

PHBPer Hop Behavior

PPPPoint-to-Point Protocol

PPSPulse Per Second

PTPPrecision Time Protocol

PTPPoint-To-Point

PVIDPort VLAN ID

PWPseudo Wire

PWE3Pseudo Wire Emulation Edge-to-Edge

QoSQuality of Service

RANRadio Access Network

RDIRemote Defect Indication

RNCRadio Network Controller

RSRadiated Susceptiblility

RSVPResource ReSerVation Protocol

RSVP-TEResource ReSerVation Protocol - Traffic Engineering

RTNReturn

SCCSignaling Communication Channel

SCSISmall Computer System Interface

SDSignal Degrade

SDHSynchronous Digital Hierarchy

SFPSmall Form-factor Pluggable

SLAService Level Agreement


Glossary

SNMPSimple Network Management Protocol

SPStrict Priority

SPESwitching PE

SPFShortest Path First

SSMSynchronization Status Message

SVLANSelective Virtual Local Area Network

T-MPLSTransport Multi-Protocol Label Switching

TCTransparent Clock

TCPTransfer Control Protocol

TDMTime Division Multiplexing

TETraffic Engineering

TELNETTelecommunication Network Protocol

TLVType/Length/Value

TMST-MPLS Section

TPIDTag Protocol Identifier

ToDTime of Delivery

ToSType of Service

UDPUser Datagram Protocol

UNIUser Network Interface

UPEUser facing Provider Edge

UTPUnshielded Twisted Pair

VCGVirtual Container Group

VCIVirtual Channel Identifier

VIP



Virtual Interface Point

VLANVirtual Local Area Network

VPIVirtual Path Identifier

VPLSVirtual Private LAN Service

VPNVirtual Private Network

VPWSVirtual Private Wire Service

VRFVirtual Route Forwarding

VRRPVirtual Router Redundancy Protocol

WRRWeighted Round Robin


03 zcna-ptn zxctn 6200 product introduction 222p

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