optix rtn 600 introduction-b

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Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.

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OptiX RTN 600 Introduction

Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 2Page 2

ForewordOptiX RTN 600 is a PDH/SDH integrated short-haul digital microwave transmission system developed by Huawei.

The maximum microwave transmission capacity is STM-1.

The system provides the backhaul transmission link in the mobile communication system or private network, and also networks with optical transmission equipments.


Objectives Upon completion of this course, you will be able to:

Describe the main characteristics of OptiX RTN 600. Describe the system structure ,software and hardware

structure of OptiX RTN 600. List the functions of boards in the IDU, ODU, Hybrid

coupler. Explain the equipment-level protection mode of OptiX

RTN 600.


Contents1. Equipment Overview

2. Equipment Structure

3. Equipment Protection



1.1 Equipment Components IDU ODU Antenna Intermediate Frequency (IF) Cable Hybrid coupler

1.2 Equipment Characteristics


Equipment Components

Hybrid coupler

IF cable

IDU

ODU

Antenna

Pole


IDU Indoor unit (IDU) realizes the

mutual conversion between the service signal and IF analog signal. Two types of IDU are available:

IDU 610 is 1U high and supports one microwave direction.

IDU 620 is 2U high and supports maximum four microwave directions.

IDU 610

IDU 620


IF transit jumper IF cable

IF Cable The IF cable provides -48V power for ODU and transmits

the IF signal and ODU management signal between IDU and ODU.

Three types of IF cable in OptiX RTN 600: IF jumper: connection between IDU and other IF cable. 1/2 inch and RG-8U (1/4 inch) cable: connection between ODU

and IF jumper. RG-8U (1/4 inch) cable is used for the distance less than 180 meter. 1/2 inch cable is used for the distance between 180m and 300m.


ODU Outdoor unit (ODU) realizes the

mutual conversion between IF analog signal and RF signal.

ODU is irrelevant to the microwave transmission capacity. An ODU of the OptiX RTN 600 can support the transmission capacity from 4 E1 to one STM-1.


Hybrid Coupler When two ODUs share one antenna, the ODUs must be

connected to an RF signal coupler/ splitter (hybrid coupler). Then, the hybrid coupler is connected to the antenna.


Antenna The antenna performs the

directional transmission and reception of RF signals. The main parameters are frequency band, diameter and antenna gain.


Equipment Characteristics PDH/SDH integrated microwave transmission system. The modulation mode and link capacity are set through

software. Microwave link supports the SNCP. Built-in ADM provides flexible service add/drop function. Providing the clock tracing function. Supporting mobile FLASH card. The boards of IDU 610 and IDU 620 are compatible each

other.


Questions What are the components of OptiX RTN 600? What are the

functions of them? What about the connection relation among the components?

What are the characteristics of OptiX RTN 600 digital microwave equipment?


Contents Equipment Structure

2.1 System Diagram 2.2 Software Structure 2.3 IDU Structure and Board

2.4 ODU Interfaces and Parameters

2.5 Hybrid coupler Parameters


IDU Structure ( IDU 610) IDU 610 is 1U high and adopts

the nature heat dissipation mode. Support 1+0 configuration.

EXT slot3

PXC slot1

EXT slot4

SCC slot2

Note: The slot numbering rule is from bottom to up and left to right.

IF boardLine board and tributary board


IDU Structure ( IDU 620) IDU 620 is 2U high and

dissipates heat through wind cooling.

Support a maximum of 4+0 configuration or two groups of 1+1 configuration.

slot20 PXC slot3

PXC slot1EXT slot4SCC slot2

EXT slot5 EXT slot6EXT slot7 EXT slot8 The slot

numbering rule is the same as OptiX RTN 610 .


IDU Board -- IF Board IF1A

ODU powersupply switch

IF cable interface Indicators

The IF board receives and transmits 1x IF signal. It realizes the conversion between baseband digital signal and IF signal, it also provides -48V DC power supply and management signal to the ODU.


IF1A

-48V power supply is output directly to ODU.

Support the DC-C grounding mode only.

IF1B

The -48V power is isolated by the DC-DC power supply module and then sent to the ODU.

Support DC-I and DC-C grounding modes.

IF Board -- Types


IF Board -- Board Installation

slot20 PXC slot3


EXT slot7

EXT slot3PXC slot1

EXT slot4SCC slot2

IDU 610

IDU 620

EXT slot5EXT slot8EXT slot6

①②

③④

Paired Slots

Paired Slots

No limitation for board installation under HSB configuration. Only installing IF boards in paired slots under SD or FD configuration.Recommended installation sequence for IF boards


IF Board -- IF PerformanceItem Performance

4 X E1 8 X E1 16 X E1 STM-1Modulation mode QPSK 16QAM QPSK 16QAM QPSK 16QAM 128QAM

Channel spacing (MHz))

7 3.5 13.75 /14 a 7 27.5/

28 b13.75 /14

a 27.5 / 28 b

Coding scheme

PDH signal is coded through the Reed-Solomon (R-S).SDH signal is coded through the Trellis-Coded Modulation (TCM) and R-S.

Remarks a: At the 18G band, the channel spacing is 13.75MHz, At other bands, the channel spacing is 14MHz.b: At the 18G band, the channel spacing is 27.5MHz. At other bands, the channel spacing is 28MHz.


IF Board -- Indicators

The space link is faulty. OnThe space link is normal.On

LINK

No services are configured. Off

The service has a minor or remote alarm.On

The service has a critical or major alarm.OnThe service is normal.On

SRV

The board is not working, not created, or has no input power.

OffThe board hardware is faulty.OnThe board is working normallyOn

STAT

MeaningStatusIndicator


IF Board -- IndicatorsIndicator Status Meaning

ODU On The ODU is normal.On The ODU is faulty.

BEROn The microwave BER exceeds the

threshold.Off The microwave BER does not

exceed the threshold.

RMTOn The remote equipment has a

Remote Defect Indication (RDI).Off The remote equipment has no

RDI.

ACT On The board is in active state. Off The board is in standby state.


IDU Board -- Tributary Board PH1

Indicator 1-8 channel E1

DB44 interfaces

9-16 channel E1DB44 interfaces

The tributary board processes multi-channel E1 signals and provides the E1 interface.


Tributary Board -- Board installation

slot20 PXC slot3

PXC slot1 SCC slot2

EXT slot7


IDU 610

IDU 620


①

Recommended installation sequence for TU boards

②③

④EXT slot4

EXT slot3

⑤


Tributary Board -- IndicatorsIndicato

r Status Meaning

STAT

On The board is working normally.On The board hardware is faulty.Off The board is not working, or

created, or has no input power.

SRV

On The service is normal.On The service has a critical or major

alarm.On The service has a minor or remote

alarm.Off No services are configured.


IDU Board -- Line Board SD1/SDE

SMBelectrica

l interface

LC optical

interface

The line board processes 1-2 channel STM-1 signal and provides STM-1 optical or electrical interface.


Line Board -- Types

SD1

Dual-port STM-1 optical interface

Ie-1interface

S-1.1interface

L-1.1interface

L-1.2interface

SL1

Single- port STM-1 optical interface

Ie-1interface

S-1.1interface

L-1.1interface

L-1.2interface

SDE

dual-port STM-1 electrical interface

SLE

Single-port STM-1 electrical interface


Line Board -- Board installation

slot20 PXC slot3

PXC slot1 SCC slot2


IDU 610

IDU 620


①②③

④EXT slot4

EXT slot3

⑤ EXT slot7

Recommended installation sequence for LU boards


Line Board -- Interface Parameters

Item PerformanceNominal bit rate (kbit/s) 155520

Application code Ie-1 S-1.1 L-1.1 L-1.2

Optical fiber typeMulti-mode fiber

G.652 G.652 G.652

Transmission distance (km) 0.5 15 40 80/100

Working wavelength (nm)

1260-1360

1261-1360

1263-1360 1480-1580

Average transmit optical power (dBm)

－ 19~ －14

－ 15~ －8 － 5~0 － 5~0

Minimum sensitivity (dBm) -23 -28 -34 -34

Minimum overload (dBm) -14 -8 -10 -10Minimum extinction ratio

(dB) 8.2 8.2 10 10


Line Board -- IndicatorsIndicat

or Status Meaning

STAT

On The board is working normally.On The board hardware is faulty.Off The board is not working, or created, or no

power supply.

SRV

On The service is normal.On The service has a critical or major alarm.On The service has a minor or remote alarm.Off No services are configured.

LOS1On No.1 opt. port on the SL1/SD1 board has a

R_LOS alarm.Off No.1 opt. port on the SL1/SD1 board has no

R_LOS alarm.

LOS2On No.2 opt. port on the SD1 board has a R_LOS

alarm.Off No.2 opt. port on the SD1 board has no R_LOS

alarm.


IDU Board -- Ethernet Board EFT4 EFT4 is a Ethernet transparent transmission board. It receives,

transmits and processes four-channel Ethernet signals.

slot20 PXC slot3

PXC slot1 SCC slot2

EXT slot7


IDU 610


①②③

④EXT slot4

EXT slot3

IDU 620

Recommended installation sequence for EFT4 boards

⑤


Power Cross-Connection Clock Board -- PXC

IndicatorIDUPowerswitch

External clock/Waysideinterface

Power inputinterface

The PXC board realizes the cross-connection (16×16 VC4) and clock functions , it also provides the DC power for other boards.


PXC -- Board Installation

IDU 610

slot20 PXC slot3

PXC slot1 SCC slot2

EXT slot7

IDU 620


①② EXT slot4


EXT slot3


PXC -- IndicatorsIndicator Status Meaning

STAT

On The board is working normally.On The board hardware is faulty.Off The board is not working, or not created,

or has no input power.

PWR

On The power is normal.On +3.3V power fault or -48V input power

abnormalOff No input power.

SYNCOn The clock is normal.On The clock source is lost or the switch

exists.

ACT On The board is in active state.Off The board is in standby status.


IDU Board -- SCC SCC provides system control and communication functions, auxiliary

interfaces management and standby internal power module.

Indicators

Indicator test button

Reset button

NM serial port

NM interface

NM cascaded interface

Order wire

Asynchronous data and Boolean interface

Flash memory


SCC Board -- Board Installation

slot20 PXC slot3

PXC slot1 SCC slot2

EXT slot7

IDU 610

IDU 620

EXT slot5EXT slot8EXT slot6EXT slot4


EXT slot3


SCC Board -- NM Cable Connection The SCC board sets the NE ID through the software. The initial NE ID

is set to 49136 by default. The IP address of NE is also set through the software. The IP address

is set to 129.9.0.ID by default.

NMSConnected by Ethernet cable


SCC Board -- Wrong Connections

Multiple NEs are cascaded as a

loop.

Self-loop of single NE

The connection will cause NE reset frequently.


SCC Board -- IndicatorsIndicat

orStatus Meaning

STAT

On The board is working normally.On The board hardware is faulty.Off The board is not working, or not

created, or has no input power.

PROG

On 100 ms and off 100 ms

During the board power-on/reset, loading the software.

On 300 ms and off 300 ms

The board software is introduced through the BIOS during the power-on/reset.

On Initialize the upper layer software.On 100 ms and off 100 ms

During the board power-on/reset, BOOTROM self-test fails.


SCC Board -- IndicatorsIndicat

orStatus Meaning

PROG

On During the board power-on/reset, the memory self-test fails or the upper layer software loading fails, or during the board running, the logical file and software are lost.

Off The software is normal.

ALM

On The system is normal.On The system has a critical or major alarm.On The system has a minor alarm.Off The system has no input power.

MANTOn The system is in maintenance state ( that is,

loop-back, laser power-off, and ODU transceiver mute)

Off The system is in working state.


IDU Board -- Fan Board (FAN)Indicato

r slot20 PXC slot3

PXC slot1 SCC slot2

EXT slot5EXT slot8EXT slot6EXT slot4

EXT slot7

Fan direction

Indicator Status Meaning

FAN

On The fan is working normally.

On The board is faulty.Off The board has no input

power.



2.1 System Diagram 2.2 Software Structure 2.3 IDU Structure and Board 2.4 ODU Interfaces and Parameters

2.5 Hybrid coupler Parameters


ODU -- Interface

< 5 kg Power consumption: < 40WWeight:

< 260 mm X 260 mm X 92 mm (width X height X depth)Dimension:

Grounding double-screw bolt

RSSI test interface IF interface

Antenna port


ODU -- Main Performance

Item Performance7G 15G 18G 23G

Frequency range (GHz)

7.114-7.743

14.501-15.257

17.685-19.710

22.000-23.608

TR spacing (MHz) 161 420 1010 1008

Channel spacing (MHz)

3.5, 7, 14, 28

3.5, 7, 14, 28

3.5, 7, 13.75, 27.5

3.5, 7, 14, 28

The ODU frequency bands covers from 7G to 38G. Some commonly used frequency band indexes are listed in the table.


ODU -- Main Performance (cont.)

Item Performance7G 15G 18G 23G

maximum Tx (dBm)

QPSK 25.5 24.5 24 22.516QAM 21 20 20 19128QAM 15 14 14 13

minimum Tx (dBm) -4

Transceiver frequency

stability (ppm)±5

[Note]: If the transmitting power exceeds the maximum level ,the Bite Error will occur in the service.



2.1 System Diagram 2.2 Software Structure 2.3 IDU Structure and Board 2.4 ODU Interfaces and Parameters 2.5 Hybrid coupler Parameters


Hybrid coupler

Secondary tributary port

Antenna port

Primary tributary port


Hybrid coupler -- Main Performance

Item PerformanceFlatness (dB) ≤0.5Attenuation (dB) ≤1.7Coupling (dB) 6.5±0.6Isolation (dB) ≥25Standing wave ratio ≤1.2Weight (kg) <5


Summary Equipment Structure of OptiX RTN 600

Software Structure: the host and board software are integrated in the SCC and the ODU is a logical board.

IDU: includes IDU 610 and IDU 620. IF board: IF1A and IF1B Line board: SL1, SD1, SLE, and SDE Tributary board: PH1 and PO1 Data board: EFT4 Power cross-connection clock board: PXC System control and communication board: SCC Fan board: FAN

ODU: interface, dimension, weight, power consumption, power indicator, and frequency indicator

Hybrid coupler: interface and main indicators


1+1 Hot Standby Backup (1+1HSB)

Cross-connection board Service

board

ActiveIF BoardActive

ODU

Hybrid couplerAntenna

StandbyIF Board

StandbyODUmut

e

mute


1+1 Space Diversity (1+1 SD)

Cross-connection board Service

board

ActiveIF BoardActive

ODU

Antenna 1

StandbyIF Board

StandbyODU

Antenna 2

Mute


1+1 Frequency Diversity (1+1 FD)

Cross-connectionboard Service

board

ActiveIF Board

ActiveODU

HybridAntenna

StandbyIF Board

StandbyODUtf2

rf2

tf1rf1


Space Frequency Diversity (1+1 SD+FD)

Cross-connectionboard Service

board

ActiveIF Board

ActiveODU

Antenna 1

StandbyIF board

StandbyODU

Antenna 2

tf2rf2

tf1rf1


SummaryContents Review Main characteristics System Structure, Software and Hardware Structure Board Functions and Signal flow in the IDU ODU and Hybrid coupler Features and Functions Equipment Level Protection Actions and Signal flow Microwave Link Protection Actions and Signal flow

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optix rtn 600 introduction-b

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