IP - BOX B E/001 1/20

IP BOX B

CONTENTS

1. GENERAL ................................................................................................................................ 2 2. DESCRIPTION......................................................................................................................... 3

2.1 Power supply ............................................................................................................... 4 2.2 Controller ..................................................................................................................... 4 2.3 Drop/Insert ................................................................................................................... 5 2.4 E1 Line interfaces........................................................................................................ 5 2.5 Ethernet L2 Switch ...................................................................................................... 6

3. INSTALLATION........................................................................................................................ 7 3.1 Mechanical installation ................................................................................................ 7 3.2 Electrical installation .................................................................................................... 7

3.2.1 Single Unit BOX.............................................................................................. 7 3.2.2 Three unit sub-rack......................................................................................... 9

4. PROGRAMMABILITY and MANAGEMENT .......................................................................... 10 5. MAINTENANCE AND ALARMS............................................................................................. 16 6. ANNEX 1 Block Diagram and Subrack configuration......................................................... 17 7. SCT - E1 port configuration................................................................................................... 20

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IP-BOX B

1. GENERAL

This document describes the IP BOX-B unit, its characteristics, its activation procedure and the relevant maintenance operations.

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2. DESCRIPTION

The IP BOX unit is an equipment used in a TMN network to connect NE(s) to the Management System (SIAE - NMS5UX). It can be used as an IP or IP-OSI (IS-IS) router providing four interface types: RS232 Asynchronous serial interface RS422-V11 Synchronous serial interface ETHERNET LAN - 10Base T E1 line (nx64Kbit/s port or nx16Kbit/s into a 64Kbit/s time slot or 16Kbit/s using TS0)

In addition a USB (V1.0) port is reserved for LCT (Local Craft Terminal) access.

Two software versions are available: 1. IP-BOX with IP communication stack 2. IP BOX with IP and OSI communication stack

The IP Box is composed of a printed circuit board that can be housed: in a small metallic box with connectors placed on the front and rear panels (Fig. 2). in a one unit (1U) 19 sub rack (Fig. 3) In the sub-rack version up to three units can be housed.

Figure 1 represents a simplified block-diagram of the unit. This diagram shows the most important functional blocks and the relevant ports towards the IP network. The main functional blocks of the IP BOX are as follows:

- Power supply; - Controller; - FPGA - E1 Drop/Insert; - Ethernet L2 Switch.

Below, there is a brief description of each functional block.

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IP-BOX B

2.1 Power supply

The Power supply block of the IP BOX is composed of two DC/DC converters in cascade. The first one is devoted to transform the battery main voltage (20 72v DC range), coming from the ALARM LINES connector into 5v DC, while the second one converts this 5v DC into 3.3v DC.

The electrical characteristics of the Power supply block are as follows:

Primary voltage (ALARM LINES connector) from 18 72v DC

Secondary voltages 5v DC, 3.3v DC

Power Consumption less than 6W

2.2 Controller

The Controller block is composed of a 32 bit/50 MHz Motorola ColdFire micro-controller and the relevant memory benches

The main characteristics of the controller block are as follows:

Clock: 50 MHz Not Volatile Memory (Flash): 8 MBytes Dynamic Memory: 32 MBytes Serial Ports: 3

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2.3 Drop/Insert

The Drop/Insert block is composed of a FPGA connected with the line interfaces of the input and output 2 Mbit/s streams. The IP BOX unit receives and transmits a 2 Mbit/s stream and it is able to drop and to insert a data stream into nx64Kb/s time slots of the 2Mbit/s signal or into an nx16Kb/s of a selected 64Kb/s time slot or into the spare bits in Time Slot0. The Drop/Insert operations are executed by the FPGA under the direct control of the Controller block.

2.4 E1 Line interfaces

The line interfaces, present into the IP BOX unit, work with 2 Mbit/s HDB3 encoded streams. Each line interface has different functions related to the direction of the data stream and are referred to as INPUT and OUTPUT, their functions are as follows:

- Input data The interface regenerates the input signal and balances attenuation due to the cable as detailed by ITU G.703/G.704 specifications.

- Output data The interface provides a data stream with the electric characteristics detailed by ITU G.703/G.704 specifications.

Electrical characteristics of 2Mbit/s interface The electrical characteristics of the 2Mbit/s interface, provided to the user, are as follows:

Bit rate 2048 kbit/s

Line code HDB3

Type of nominal interface/impedance unbalanced / 75

Connector 1.0/2.3

Nominal value 2,37Vp on 75

Input reflection attenuation 12 dB from 51 kHz to 102 kHz 18 dB from 102 kHz to 2048 kHz 14 dB from 2048 kHz to 3072 kHz

Max attenuation of input cable 6 dB in at 1024 kHz

If DC power is removed from the IP BOX unit, the unit becomes transparent to the 2 Mbit/s lines towards the user and the master station.

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IP-BOX B

2.5 Ethernet L2 Switch

The IP-BOX has an Ethernet L2 Switch connecting the following ports: Micro processor Ethernet port Two 10BaseT external Ethernet ports Two Internal ports connectable to E1 serial frame

It is possible to connect to each of the internal ports a serial frame generated by an nx64Kbit/s drop/insert signal on the E1s.

The two Ethernet interfaces of the IP BOX unit follow specification 802.3 with MAU transceiver 10BaseT and standard RJ45 connector.

The two Ethernet ports are configurable (using SCT) as: "MDI" (Media Dependent Interface) "MDIX" (Media Dependent Interface with Crossover). "Auto Cross".

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3. INSTALLATION

This paragraph describes the mechanical and electrical installation practices of the IP BOX unit.

3.1 Mechanical installation

The IP BOX is an indoor unit with a metallic protection shell that requires some special installation procedures figure 2.

Up to three IP BOX units can be also housed into a subrack (Figure 3): 19 Height 1U HxWxD (mm): 44 x 482 x 240

3.2 Electrical installation

The electrical installation of the IP BOX unit requires the preparation of the wiring necessary for the correct function of the unit and for the connections to the Ethernet network. Different connectors are provided dependant on the version.

3.2.1 Single Unit BOX

The connectors provided on the unit are listed below (Refer to Fig. 2). Front panel:

- E1 in/out connectors ( connector) female type 1.0/2.3 at 75 - E1 in/out connectors (PMP connector) female type 1.0/2.3 at 75 - ALARM LINES connector Sub-D male type with 15 pins (the description of the pins

is detailed in Table 1). This connector provides the 48v DC and user input relay contacts.

Rear panel: - 2 x 802.3 connector RJ45 Ethernet standard type - PMP-LES or RS232-RS422/PPP RJ45 connectors (the wiring is detailed in Table

1). - RS232/PPP connector Sub-D male type with 9 pins (the wiring description is

detailed in Table 1). - USB connector for LCT

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IP-BOX B

Power supply connectors

The power supply connector is included with the ALARM LINES (48v DC)

Table 1 Connector Wire

Pin Rs232/RS422 PMP_LES

RS232/PPP ALARM LINES PIN

1 CkTx- (V11) RTS (C105) Power supply - 1 2 CkTx+ (V11) DTR (C108) Relay-1 2 3 TxD- (C103 or V11) TxD (C103) Relay-2 3 4 TxD+ (V11) GND (C102) Relay-3 4 5 RxD+ (V11) +5V (Out) Relay-4 5 6 RxD- (C104 or V11) RxD (C104) Relay-5 6 7 CkRx- (V11) CD (C109) Relay-6 7 8 CkRx+ (V11) or

5VDC CTS (C106) Relay-7 8

Shield * GND Power supply + 9

Power supply + 10 Power supply + 11 Power supply + 12 GND 13 GND 14 15

* The ground connection for the PMP_LES connector has made via RJ45 Chassis

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3.2.2 Three unit sub-rack

The connectors provided by each equipped unit are listed below (Refer to Fig.3): - E1-1 in/out connectors female type 1.0/2.3 at 75 - E1-2 in/out connectors female type 1.0/2.3 a 75 - 2x802.3 connectors RJ45 Ethernet standard type - RS232-RS422/PPP connector RJ45 type (the wiring is detailed in Table 2). - RS232/PPP connector RJ45 type (the wiring is detailed out in Table 2). - USB connector

Alarm Connector Alarm line connector Sub-D male type with 15 pins (the description of the pins is detailed in Table 2). It is used for the return of relay contacts.

Power supply connector The sub-rack version requires a single SUB D 3W3 male connector for 48v DC power supply (Table 2)

Table 2 Pins of the connectors

Pin RS232-RS422/PPP RS232/PPP 3W3 Alarm Connector PIN

1 CkTx- (V11) RTS (C105_PPP) +V - 1 2 CkTx+ (V11) DTR (C108_PPP) GND IP-BOX-1 Alarm 2 3 TxD- (C103 or V11) TxD (C103_PPP) -V - 3 4 TxD+ (V11) GND (C102) IP-BOX-2 Alarm 4 5 RxD+ (V11) +5V (Out) . 5 6 RxD- (C104 or V11) RxD (C104_PPP) IP-BOX-3 Alarm 6 7 CkRx- (V11) CD (C109_PPP) - 7 8 CkRx+ (V11) or

5VDC CTS (C106_PPP) - 8

Shield * GND - 9 - 10 - 11 - 12 - 13 - 14 - 15

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IP-BOX B

4. PROGRAMMABILITY and MANAGEMENT

The IP BOX unit is managed through SNMP protocol using a proprietary MIB (Management Information Base) which details the managed objects. The SNMP v1 protocol is used in accordance with RFC 1157 spec; MIB description is according to V1 syntax, the unit is fully complaint with these specifications:

RFC 1155 SMIv1 RFC 1156 MIB for Network Management RFC 1212 concise MIB definitions

According to the network type and customer requirements the IP BOX supporting SNMP protocol can be provided with two protocol stacks: a Full IP stack or an OSI+IP stack.

As an option the Full IP stack version supports dynamic IP routing through OSPF (Open Shortest Path First) protocol. When implementing OSI+IP stack, layers 1 to 3 are compliant with the recommendations:

Level3: ISO 8473, ISO 10589 IS-IS Level2: G.921 LAPD

IP Communication Stack

IP - OSPF

TCP / UDP

802.3 ETH - LAN

LLC 802.2 MAC 802.3

APPLICATION SOFTWARE

SNMP

PPP

2Mb/s nx64(16)Kb

SYNC-RS422 64 Kb/s

ASYN-Rs232 57.6 Kb/s

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IP - OSI Communication Stack

IP - BOX IP INTERFACE INTERCONNECTION

TCP / UDP

802.3 ETH - LAN

LLC 802.2 MAC 802.3

ISO 8473 ISO10589 IS-IS

IP

APPLICATION SOFTWARE

PPP

SNMP

LAPD G.921

2Mb/s nx64(16)Kb/s

ASYN-Rs232 57.6 Kb/s

SYNC-RS422 64 Kb/s

E1-1 or E1-2nx64Kb/s (n

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IP-BOX B

The communication ports of IP-BOX unit are:

2 x Ethernet LAN 1 x Asynchronous RS232 serial interfaces 1 x Asynchronous RS232 or 1xSynchronous RS422-V.11 serial interface 2 x E1 G.704 signals

LAN Interconnection

The two Ethernet ports are connected to the L2 internal switch, both ports can be used to connect the IP-BOX to the LAN or to another NE (Refer to the above figure) The Asynchronous RS232 serial interfaces are programmed to support Point to Point Protocol (PPP) supporting Wide Area Network (WAN) interconnection using TCP/IP protocol. The maximum speed is 57.6Kb/s One of the two RS232 port can be configured to support synchronous RS422-V11, the maximum speed is 64Kb/s. The supported protocol is PPP for Full IP version or LAPD for IP-OSI version The IP-BOX provides 2 x E1 G704 interfaces. On both of these it is possible to drop/insert:

nx64Kb/s time slots nx16Kb/s within a 64Kb/s time slot TS0 spare bits

Because the IP BOX provides one serial controller, the operator has to select which E1 to connect. The supported protocol is PPP for Full IP version or LAPD for IP-OSI version. The maximum number of 64Kbit/s is four. It is mandatory the use of the serial controller (PPP or LAPD protocol) with TS0 spare bits and nx16Kbit/s The nx64Kbit/s (n

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Scenario 1

The E1 signals are connected to L2 IP-BOX switch, the number of 64Kb/s E1 time slots is configurable from 1 to 31, no routing IP is performed by IP-BOX and it looks as if all the IP-BOXs are connected to the same LAN.

Scenario 2

The connection between IP-BOX 1 and IP-BOX 2 is a point-to-point connection using PPP protocol, IP BOX-1 and IP-BOX 2 belong to two different IP sub-networks and they act as routers between the two sub-networks. The connection between IP-BOX 1 and IP-BOX 2 can use:

nx64Kb/s time slots (n

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IP-BOX B

Scenario 3

The connection between IP-BOX 1 and IP-BOX 2 is implemented both by a point-to-point connection using PPP protocol and by bridging functionality. Both connections can use the same E1 signal. The scenario covers the need to have a connection reserved for data traffic and the other one for the IP-BOX remote management.

Scenario 4

The three IP-BOX are connected using bridging functionality. IP-BOX maps two TSG (Time Slot Group) on the same E1, the two TSG are dropped/inserted in different sites by IP-BOX 2 and IP-BOX 3. Using Lan per Port L2 switch feature in IP-BOX 1 it is possible to separate the traffic coming from ETH A and ETH B

CONTROLLER CONTROLLER

IP-BOX 1 IP-BOX 2

TDM

nx64Kb/s or TS0 on E1-1(2)

IP-NET 1 IP-NET 2

Ethernet Ethernet

TDM

nx64Kb/s on E1-1(2)IP-NET 3

TDM TDM

TSG1 - TSG2 TSG1 TSG2

E1-1 E1-1 E1-1E1-2

IPBOX 1 IPBOX 2 IPBOX 3

ETH A ETH B ETH A ETH A

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Scenario 5

This Scenario 5 is a Scenario 4 extension. All the IP BOX are connected using bridging functionality. It shows that, connecting in a site more IP BOX using LAN interface, it is possible to implement also a configuration site-multi site. All the sites are in the same IP network.

It is possible to manage and to control IP BOX locally using SCT/LCT through SNMP protocol:

Port Configuration (IP address, IP netmask, OSI NSAP) OSPF parameters (Full IP version only) Software inventory and Software download Alarm Management. The alarms are transferred in an asynchronously using SNMP-

Trap. An alarm history log is locally managed by the IP-BOX. Security Management The access to the IP-BOX is protected by username and

password according to different user profile.

The IP-BOX can be managed remotely by NMS5UX/NMS5LX through SNMP protocol: Port Configuration (E1 Time slot assignment only) Software inventory and Software download Alarm Management. The alarms are transferred in an asynchronously using SNMP-

Trap. Security Management. The access to the IP-BOX is protected by username and

password according to different user profile.

TDM

TSG1 - TSG2 TSG1 TSG2

E1-1 E1-1 E1-1E1-2

IPBOX 1 IPBOX 2 IPBOX 3

ETH A ETH B ETH A ETH A

TDM

TSG1 - TSG2IPBOX 5

ETH A ETH B

ETH A

ETH B ETH B

ETH B

TSG1 - TSG2IPBOX 4

E1-2

E1-1E1-1

TDME1-1

TSG1 - TSG2IPBOX 6

ETH A ETH B

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IP-BOX B

5. MAINTENANCE AND ALARMS

The maintenance of the IP BOX unit consists of the activation of the relevant alarm signals. In case of a positive hardware fail, it is necessary to replace the entire unit.

The alarm management is executed according to the following modes: - By means of four LEDs present on the front panel of the equipment for the stand alone

version (refer to Figure 2); The illumination of each LED has the following meaning:

- Rx: Data detected at input; GREEN - Tx: Data detected at output; GREEN - : Unit correctly power supplied; GREEN -

'': Failed unit. RED

- By means of a led present on the front panel of the equipment in 1RU version (refer to Figure 3). When the STATUS:LED is illuminated GREEN the IP-BOX is functioning normally

- By means of the supervisory software (refer to the manual of the relevant supervisory software);

The alarms reported to the Manager through SNMP trap are the following ones: LAN 1 (LAN 2) cable Fail

Fault on the etnernet port (cable missing or fail) IP BOX 2Mb/S G.704 signal fail at E1-1 (E1-2)

E1 signal fail (cable missing or fail) IP BOX Communication 2Mb/s EOC Data Link Alarm

Protocol error (PPP or LAPD) on E1 link IP BOX Communication 64Kb/s V11 EOC Data Link Alarm

Protocol error (PPP or LAPD) on 64Kb/s V11 data link

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6. ANNEX 1 Block Diagram and Subrack configuration

Figure 1 Block-diagram of the IP BOX unit

E1 MasterStation side

FPGA

Alarms anduser I/O

Aux-Power Supply

Main-Power Supply

E1conn.

E1conn.

RJ-45 Sub-D15-Pin

Alarms &Main Power Supply (+48V)

TNM Conn.

EthernetController

MicroProcessore

PPP Port

RJ-45

RJ-45RJ-45USB

EthernetPort B

EthernetPort A

USB 1.0

RS424-232 Port

Drop/InserPorts

FPGA E1

Drop/Insert

Rs422/ Rs232

2xE1 LAN

LAN-1 LAN-2

Ethernet L2 Switch

RS232

Controller

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IP-BOX B

Figure 2 IP-BOX Stand alone version

2x10BaseTETH LAN

ports

RS232 -PPPPort

RS232/Rs422 PMP_LES/PPP Port

USB-LCT Port

E1-2/SwitchPort

E1-1/PMPPort Alarm Lines 48v DC PSU

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Figure 3 IP-BOX 1RU Sub-rack version

E1-1 Port E1-2 Port

2x10BaseTETH LAN

Ports

RS232 - PPPPort

RS232/RS422 PPP - Port

USB LCT Port

Alarm Connector

PSU Connector

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IP-BOX B

7. SCT - E1 port configuration

E1-PPP Protocol enable

E1-PPP IP configuration

E1-PPP TS assignement

E1-PPP 16Kb/s assignement

E1 Bridging LAN per Port

E1 Bridging TSG1 and TSG2 Configuration