zxmp m721 product description - liberty port · 3.7 transmission codes ... table 4-1 board...

ZXMP M721

Product Description

ZXMP M721 Product Description

ZTE Confidential Proprietary 1


Version Date Author Reviewer Notes

V1.00.1 2012/01/11 Bai Zhimin Wang Linfeng

Ding Wei Not open to the third party

V1.00.2 2012/05/28 Sun Jianfeng Wang Linfeng Not open to the third party

V1.00.3 2012/08/28 Ma Guangpei Wang Linfeng Not open to the third party

V1.10.1 2013/03/15 Ma Guangpei Wang Linfeng Not open to the third party

V1.10.2 2014/04/09 Ma Guangpei Wang Linfeng

Ding Wei Not open to the third party

© 2014 ZTE Corporation. All rights reserved.

ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used

without the prior written permission of ZTE.

Due to update and improvement of ZTE products and technologies, information in this document is subjected to

change without notice.


2 ZTE Confidential Proprietary

TABLE OF CONTENTS

1 Overview ............................................................................................................ 9

2 Highlight Features ........................................................................................... 11

2.1 High Compactness ............................................................................................. 11

2.2 Superior Installation Adaptability ........................................................................ 11

2.3 Total-Cost-of-Ownership Saving ........................................................................ 11

2.4 Reliable Protection Functions ............................................................................ 11

2.5 Any Rate Service Access and Agile Convergence ............................................. 12

2.6 E1/T1 Service Access and Convergence ........................................................... 12

2.7 CWDM/DWDM Universal Transmission Platform ............................................... 12

2.8 Flexible Traffic Grooming ................................................................................... 12

2.9 Optional OSC/ESC ............................................................................................ 13

2.10 Performance Monitoring ..................................................................................... 13

2.11 Automatic Temperature Control ......................................................................... 13

2.12 Powerful NMS .................................................................................................... 13

3 Functionality .................................................................................................... 14

3.1 Key Technologies .............................................................................................. 14

3.1.1 Large Transmission Capacity and Advanced FEC ............................................. 14

3.1.2 Optical Amplification .......................................................................................... 14

3.1.3 APSD/APR......................................................................................................... 14

3.1.4 DSS ................................................................................................................... 15

3.2 Upgrade and Maintenance ................................................................................. 15

3.2.1 Main and Extension Sub-rack ............................................................................ 15

3.2.2 Smooth Expansion and Upgrade ....................................................................... 15

3.2.3 Online Upgrade .................................................................................................. 15

3.3 Networking ......................................................................................................... 16

3.3.1 System Applications ........................................................................................... 16

3.3.2 Networking Modes ............................................................................................. 16

3.4 Synchronous Ethernet ....................................................................................... 18

3.5 IEEE 1588v2 ...................................................................................................... 19

3.6 Flexible Bandwidth Utilization Based on ODUflex .............................................. 19

3.7 Transmission Codes .......................................................................................... 20

3.8 Equipment Protection ......................................................................................... 20

3.8.1 Power Supply Protection .................................................................................... 20

3.8.2 Control Board 1+1 protection ............................................................................. 21

3.9 Networking Protection ........................................................................................ 21

3.9.1 OMS 1+1 Protection........................................................................................... 21

3.9.2 OCh 1+1 Protection ........................................................................................... 22



3.10 Inbuilt Optical Channel Line Side 1+1 Protection ............................................... 24

3.11 EMS/SNMS Channel Protection ......................................................................... 25

4 System Architecture ........................................................................................ 26

4.1 Product Physical Structure ................................................................................. 26

4.2 Hardware Structure ............................................................................................ 27

4.2.1 Sub-rack ............................................................................................................ 28

4.2.2 Board Description .............................................................................................. 29

4.3 Software Structure ............................................................................................. 33

4.3.1 NM Software Structure ....................................................................................... 34

4.4 System Configuration ......................................................................................... 35

4.4.1 Optical Terminal Multiplexer (OTM) ................................................................... 35

4.4.2 Optical Add/Drop Multiplexer (OADM) ................................................................ 36

4.4.3 Optical Line Amplifier (OLA) ............................................................................... 37

5 Technical Specification ................................................................................... 38

5.1 Working Wavelength Requirements ................................................................... 38

5.1.1 Dedicated Continual Wavelength ....................................................................... 38

5.1.2 Dedicated Discontinuous Wavelength ................................................................ 39

5.1.3 Dedicated CWDM Wavelength ........................................................................... 40

5.2 Physical Specifications....................................................................................... 41

5.2.1 Dimension .......................................................................................................... 41

5.2.2 Bearing requirements for Equipment Room ....................................................... 43

5.3 Power Supply Specifications .............................................................................. 43

5.3.1 Power Supply Requirement ............................................................................... 43

5.3.2 Power Consumption Specifications .................................................................... 43

5.4 Environment Conditions ..................................................................................... 45

5.4.1 Grounding Requirements ................................................................................... 45

5.4.2 Temperature and Humidity Requirements .......................................................... 46

5.4.3 Requirements of Cleanness ............................................................................... 46

5.5 System Component Indices ............................................................................... 47

5.5.1 Management Subsystem Specifications ............................................................. 47

5.5.2 Optical Transponder Unit Specifications ............................................................ 49

5.5.3 Optical Muxponder Unit Specifications ............................................................... 53

5.5.4 Mux/DeMux Unit Specifications .......................................................................... 67

5.5.5 Fixed Add/Drop Multiplexer Unit Specifications .................................................. 72

5.5.6 Optical Amplification Subsystem Specifications ................................................. 76

5.5.7 Protection Subsystem Specifications ................................................................. 79

5.5.8 Dispersion Compensation Module Specifications ............................................... 80



Appendix A: Abbreviation.................................................................................................. 82

Appendix B: Followed Standards and Recommendations .............................................. 83



FIGURES

Figure 1-1 ZXMP M721 DX61 sub-rack (DC input) .......................................................... 9

Figure 1-2 ZXMP M721 DX61 sub-rack (AC input) .......................................................... 9

Figure 1-3 ZXMP M721 DX62-DC/DX62-DTsub-rack (DC input) ..................................... 9

Figure 1-4 ZXMP M721 DX62-AC/DX62-AT sub-rack (AC input) .................................... 9

Figure 1-5 ZXMP M721 DX63 ........................................................................................10

Figure 1-6 Position of ZXMP M721 in network ................................................................10

Figure 3-1 Network Applications with ZXMP M721 .........................................................16

Figure 3-2 Application of Chain Networking ....................................................................16

Figure 3-3 Application of Ring Networking ......................................................................17

Figure 3-4 Ring-with-Chain Networking ..........................................................................17

Figure 3-5 Cross Connection Networking .......................................................................18

Figure 3-6 Tangent Ring Networking ..............................................................................18

Figure 3-7 Function Modules of OMS 1+1 Protection (OA Shared Mode) .......................21

Figure 3-8 Function Modules of OMS 1+1 Protection (OA Redundant Mode) .................22

Figure 3-9 OCh 1+1 Protection (OTU Board Redundant Configuration Mode, Chain

Network) ...............................................................................................................................23

Figure 3-10 OCh 1+1 Protection (OTU Board Redundant Configuration Mode, Ring

Network) ...............................................................................................................................23

Figure 3-11 OCh 1+1 Protection in Ring Network (OTU Board Shared Mode) ...............24

Figure 3-12 Inbuilt Optical Channel Line Side 1+1 Protection .........................................25

Figure 4-1 Function Modules of ZXMP M721 .................................................................26

Figure 4-2 ZXMP M721 wall-hanging installation (DX62)................................................27

Figure 4-3 ZXMP M721 wall-hanging installation (DX61)................................................27

Figure 4-4 Slots Arrangement of ZXMP M721 DX61 Sub-rack (DC input) .....................29

Figure 4-5 Slots Arrangement of ZXMP M721 DX61 Sub-rack (AC input) .....................29

Figure 4-6 Slots Arrangement of ZXMP M721 DX62 Sub-rack (DC input) .....................29

Figure 4-7 Slots Arrangement of ZXMP M721 DX62 Sub-rack (AC input) .....................29

Figure 4-8 Slots Arrangement of ZXMP M721 DX63 Sub-rack ......................................29



Figure 4-9 NM software structure ...................................................................................34

Figure 4-10 Function Modules of the OTM .....................................................................36

Figure 4-11 Function Modules of the OADM ...................................................................36

Figure 4-12 Function Modules of the OLA ......................................................................37

Figure 5-1 M1TD2C Jitter Transfer Specifications of Optical Interface at Line Side ........53



TABLES

Table 4-1 Board Descriptions .........................................................................................30

Table 5-1 Allocation of Wavelengths in a 40-Channel System (C Band/Spacing: 100 GHz)

.............................................................................................................................................38

Table 5-2 No-continuous Wavelengths and Corresponding Central Frequencies ...........39

Table 5-3 Wavelengths assigned in CWDM system .......................................................40

Table 5-4 Structure Specifications of ZXMP M721 .........................................................41

Table 5-5 ZXMP M721 Board Weight .............................................................................42

Table 5-6 Board Power Consumptions of ZXMP M721 ..................................................44

Table 5-7 Temperature and Humidity Requirements ......................................................46

Table 5-8 Requirements for Harmful Gases in the Equipment Room..............................47

Table 5-9 Specifications of M2NCP Board for DWDM ....................................................47

Table 5-10 Specifications of M2NCP Board for CWDM ..................................................47

Table 5-11 Specifications of M1BITSB Board .................................................................48

Table 5-12 Specifications of M1TD2C Board for DWDM ................................................49

Table 5-13 Specifications of M1TD2C Board for CWDM 10G .........................................50

Table 5-14 Jitter Specifications for M1TD2C ..................................................................52

Table 5-15 Jitter Transfer Specifications at 3R Line Side for M1TD2C ...........................52

Table 5-16 Specifications of M1MQA1 Board for CWDM ................................................53

Table 5-17 Specifications of M1MQA1 Board for DWDM ................................................55

Table 5-18 Specifications of M1MQA2 Board for DWDM ................................................56

Table 5-19 Specifications of M1MQA2 Board for CWDM 10G ........................................58

Table 5-20 Specifications of M1MJA Board ....................................................................59

Table 5-21 Specifications of M1MOM2B Board for DWDM 10G .....................................60

Table 5-22 Specifications of M1MOM2B Board for CWDM 10G .....................................61

Table 5-23 Specifications of M1MHE1 Board for CWDM ................................................62

Table 5-24 Specifications of M1MHE1 Board for DWDM ................................................63

Table 5-25 Specifications of M1ASMB Board for CWDM ................................................65

Table 5-26 Specifications of M1ASMB Board for DWDM ................................................66



Table 5-27 M3OMU40 Performance Parameters (40 channels) .....................................68

Table 5-28 ODU Performance Parameters (40 channels) ..............................................68

Table 5-29 Performance Parameters of M1SCOMDS Board ..........................................69

Table 5-30 Performance Parameters of M1SCOMD4-DX61S/ M1SCOMD4-5US/

M1SCOMD4-9US/ M1SCOMD5-14US Boards .....................................................................70

Table 5-31 Performance Parameters of M1SCOMD4-5U/ M1SCOMD4-9U/

M1SCOMD5-14U Boards .....................................................................................................71

Table 5-32 Specifications of M1SOGMD Board (C-band) ...............................................71

Table 5-33 Specifications of M1SOAD4 Board (C-band) ................................................72

Table 5-34 Specifications of M1SOAD4(S, II) Board (C-band)........................................73

Table 5-35 Specifications of M1SOAD2D Board (C-band) ..............................................74

Table 5-36 Specifications of M1SCOAD1 Board ............................................................75

Table 5-37 Specifications of M1SCOAD2 Board ............................................................75

Table 5-38 Specifications of 40-channel M3SEOBA (C-band) ........................................76

Table 5-39 Specifications of 40-channel M3SEOPA (C-band) ........................................77

Table 5-40 Specifications of M1SSDMT Board ...............................................................78

Table 5-41 Specifications of M1SSDMR Board ..............................................................79

Table 5-42 Specifications of M1SOP Board....................................................................79

Table 5-43 Specifications of DCM ..................................................................................80



1 Overview

This chapter introduces ZXMP M721 and its position in network.

ZXMP M721 is a small size, intelligent, CWDM/DWDM hybrid Compact OTN Equipment

located in metro network. It supports the capacity up to 40×10G in a pair of fiber for

DWDM system, and 18×2.5G for CWDM system.

ZXMP M721 sub-racks are shown below.

Figure 1-1 ZXMP M721 DX61 sub-rack (DC input)

Figure 1-2 ZXMP M721 DX61 sub-rack (AC input)

Figure 1-3 ZXMP M721 DX62-DC/DX62-DTsub-rack (DC input)

Figure 1-4 ZXMP M721 DX62-AC/DX62-AT sub-rack (AC input)



Figure 1-5 ZXMP M721 DX63

Based on the development idea of “creating free, powerful and scalable optical

transmission networks”, ZTE develops its new-generation of digital transmission

products including ZXMP M721, ZXMP M820, ZXONE 8000 and ZXWM M920

equipments.

The new-generation transmission products of ZTE can satisfy all applications from the

backbone network to access network, and provide users with future-oriented overall

transmission solutions.

ZXMP M721 is mainly applied to metro edge network. Its position is shown in Figure 1-6.

Figure 1-6 Position of ZXMP M721 in network



2 Highlight Features

This chapter introduces the distinct features of ZXMP M721.

2.1 High Compactness

ZXMP M721 supports up to 40×10G for DWDM system, 18×2.5G and 8×10G for CWDM

system and modular upgrade. The sub-racks of ZXMP are only 1RU, 2RU or 3RU height.

The high compactness of ZXMP M721 significantly reduces the dimension of the

equipment as well as the occupation of rack.

2.2 Superior Installation Adaptability

ZXMP M721 supports flexible installation such as rack installation and wall-hanging

installation. ZXMP M721 also supports DC and AC power supply.

Flexible installation and alternative power supply can adapt tough and complex

installation environment.

2.3 Total-Cost-of-Ownership Saving

ZXMP M721 supports in-service upgrade from 1 wavelength to 40 wavelengths, so as

called “Pay as Grows”. On the other hand, small size, large capacity, easy maintenance,

low power consumption features and various protections for the service and the

equipment which greatly enhance the reliability will reduce the TCO.

2.4 Reliable Protection Functions

ZXMP M721 provides multiple and effective equipment protection and networking

protection schemes including control Board 1+1 protection, power Board 1+1 protection,

OMS 1+1 protection, OCh 1+1 protection, ODUk 1+1 protection, ESR protection and

ERPS protection, which provide service carriers a reliable transmission platform for any



kind of telecom service deployment.

Inbuilt optical channel line side 1+1 protection can save protection board and sub-rack

slot.

2.5 Any Rate Service Access and Agile Convergence

ZXMP M721 supports any rate service access from 100Mbit/s to 4.25Gbit/s and agile

convergence with 4-10 any rate services into OTU1, 4-22 any rate services into OTU2.

Any rate service access and agile convergence supply service providers with a unified

transmission platform for new telecom service deployment, which can also reduce TCO

with full investment protection as their networks evolve.

2.6 E1/T1 Service Access and Convergence

ZXMP M721 can access E1/T1 service and concentrate E1/T1 into STM-1/4, and

STM1/4 into OTU1 to transmit on CWDM/DWDM network. At the same time, the same

service board can input and output external 2Mbit/s and 2MHz and synchronize the clock

to other relevant E1/T1 service board.

2.7 CWDM/DWDM Universal Transmission Platform

ZXMP M721 supports CWDM/DWDM hybrid network to implement the universal

transmission platform as bandwidth increases for a low TCO network solution according

to service providers’ investment object.

2.8 Flexible Traffic Grooming

ZXMP M721 supports DSS (Distributed Service Switch Platform) at granularities of

ODU0, ODU1 and ODUflex, which enables agile service scheduling to enhance network

flexibility.



2.9 Optional OSC/ESC

ZXMP M721 supports OSC (Optical Supervision Channel) and ESC (Electrical

Supervision Channel) to provide flexibility for deployment.

2.10 Performance Monitoring

ZXMP M721 uses a performance-monitoring unit on the Board to capture the

performance data, which can be used to accurately locate the fault via NMS.

2.11 Automatic Temperature Control

ZXMP M721 realizes automatic temperature control by adjusting the fan speed

automatically according to the temperature of sub-rack. Auto or manual adjustment

mode can be chosen through NMS.

2.12 Powerful NMS

NetNumenTM U31, the new generation network management system on NE

management layer/ subnet management layer, is used to manage and supervise NE

equipment in the bearer network.

NetNumenTM U31 adopts the distributed, multi-process and modular design. It can

manage all ZTE’s optical transport products. It has such management function as

configuration management, fault management, performance management, maintenance

management, path management, security management, system management and report

management. It supports such services as TDM, ATM, Ethernet, PTN, WDM, and

intelligent services. While assuring transport equipment functions, it can manage and

control NE and regional networks.



3 Functionality

This chapter characterizes the key technologies and applications of ZXMP M721,

including large transmission capacity, FEC and AFEC, optical amplifier, APSD and APR,

main and extension sub-rack, the capability of smooth expansion and upgrade, online

upgrade and pluggable character, networking etc.

3.1 Key Technologies

3.1.1 Large Transmission Capacity and Advanced FEC

The 40-wavelengths system is 100GHz spacing in C band.

The G.709 FEC can increase the OSNR tolerance about 5~6 dB, and the advanced FEC

technique adopting more effective coding algorithm can increase the OSNR tolerance

about 7~9dB.

ZXMP M721 supports both FEC and AFEC to assure the transmission quality.

3.1.2 Optical Amplification

ZXMP M721 adopts EDFA technology to improve the transmission distance of system

without regeneration. EDFA technology replaces the traditional regeneration mode of

optical-electrical-optical to implement the simultaneous amplification for the multiple

optical signals in the fiber. This technology can greatly reduce the cost of optical

regeneration, and realize the coupling with transmission fiber. It also provides various

benefits, such as high gain, low noise, large bandwidth, high output power, high pump

efficiency and insensitive to polarization.

3.1.3 APSD/APR

ZXMP M721 supports two modes of auto power control (APC) functions: auto power

shutdown (APSD) and auto power reduction (APR). When there is no optical signal in

EDFA, APC functions will automatically reduce the power or shutdown the power to meet

the safety requirements for eyes.



System can be automatically or manually recovered after the fault recovery.

3.1.4 DSS

The DSS (Distributed Service Switch Platform) consists of four Boards, and each Board

is composed of line side unit, client unit and switching matrix. Client unit can access any

rate service from 100Mbit/s to 4.25Gbit/s. The non-blocking service switching among

these four Boards can realize sub-wavelength service dispatching or multicasting during

multiple directions. The switching granularity can be ODU0, ODU1 or ODUflex. Total

switching capacity of each DSS group is 80G at most and single sub-rack can support

multiple DSS. The cross connected signals are aggregated into OTU1/OTU2 on these

group convergence Boards and are eventually output from the line-side unit. DSS can

also realize ODUk 1+1 protection based on ODU0/ODU1/ODUflex granularity.

In DSS subsystem, switching matrix is distributed on service Board and doesn’t occupy

other service slots. Such highly integrated Boards can reduce power consumption

effectively.

3.2 Upgrade and Maintenance

3.2.1 Main and Extension Sub-rack

ZXMP M721 supports the extension of sub-rack, so as called main/extension sub-rack. A

main sub-rack can manage 7 extension sub-racks at most.

3.2.2 Smooth Expansion and Upgrade

ZXMP M721 can smoothly upgrade with 4/5 wavelengths by adding optical transponder

unit and relevant Mux/Demux Boards.

3.2.3 Online Upgrade

The ZXMP M721 can implement the online upgrade for EMS/SNMS software and

embedded software in each Board without interrupting services.



3.3 Networking

3.3.1 System Applications

ZXMP M721 network application is shown in Figure 3-1.

Figure 3-1 Network Applications with ZXMP M721

MPI-S R’

MPI-R S’

OLA

OLA

NCP

S’ MPI-R

R’ MPI-S

SD1 R1

TD2C

2

TD2C

n-1

TD2C

n

SD2 R2

SDn-1 Rn-1

SDn Rn

S

O

A

D

OPA

RM1 S1

l1

TD2C

1

TD2C

2

TD2C

n-1

TD2C

n

RM2 S2

l2

RMn-1 Sn-1

ln-1

RMn Sn

ln

OBA

N

C

P

TD2C

1

SOAD

NCP

T

D

2

C

T

D

2

C

T

D

2

C

T

D

2

C

SOAD

T

D

2

C

T

D

2

C

T

D

2

C

T

D

2

C

S1 RM1

l1

TD2C

2

TD2C

n-1

TD2C

n

S2 RM2

l2

Sn-1 RMn-1

ln-1

Sn RMn

ln S

O

A

D

OBA

R1 SD1TD2C

1

TD2C

2

TD2C

n-1

TD2C

n

R2 SD2

Rn-1 SDn-1

Rn SDn

OPA

N

C

P

TD2C

1

OSCOSC

OSC OSC

OTM OLA OADM OTM

Working wavelength range and channel spacing is C band (192.1 THz ~ 196.0 THz) at

100 GHz channel spacing.

3.3.2 Networking Modes

To satisfy the need of various networking modes and functions, ZXMP M721 can be

configured as an OTM, OADM and OLA.

1. Chain Networking

The chain networking application with the OADM function is shown in Figure 3-2.

Figure 3-2 Application of Chain Networking

O T M O L A O A D M O T M

2. Ring Networking



The ring networking application is shown in Figure 3-3.

Figure 3-3 Application of Ring Networking

OADM

OADM

OADM

OADM

OADM

OADM

3. Ring-with-Chain Networking

The ring-with-chain networking application is shown in Figure 3-4.

Figure 3-4 Ring-with-Chain Networking

OADM

OADM

OADM OADM OLA OTM

4. Cross Connection Networking

Cross connection networking is shown in Figure 3-5.



Figure 3-5 Cross Connection Networking

5. Ring Tangent Networking

Ring tangent networking application is shown in Figure 3-6.

Figure 3-6 Tangent Ring Networking

OADM

OADM

OADM

OADM

OADM

OADM OADM

3.4 Synchronous Ethernet

The synchronous Ethernet clock is a technology of frequency synchronization at the

physical-layer. To be specific, the SSM byte carrying the clock source quality information

OLAOADM OTM

OLA

OTM

OLA

OTM

OTM



is encapsulated into an Ethernet frame, and the system directly extracts the clock signal

from the serial bit stream on the Ethernet line to realize the transfer of clocks.

Features of the Synchronous Ethernet Clock：

1. A synchronous Ethernet clock is simple to realize. A port can directly extract the

physical-layer clocks with the clock quality satisfying the requirements for a clock

source.

2. The mechanism for transferring the clock in synchronous Ethernet is simple to

realize and the restored clock is reliable in compliance with ITU-T G.823 with

respect to the synchronization interface specifications. In addition, the restored

clock is not affected by the change in the load of the network.

3. The TDM clock synchronization can be compatible.

ZXMP M721 supports Synchronous Ethernet by the GE/10GE ports.

3.5 IEEE 1588v2

IEEE 1588v2 is a standard defining the precision clock synchronization protocol for

measurement and control systems. This standard defines the Precision Time Protocol

(PTP), which enables accurate clock synchronization between distributed and

standalone devices in measurement and control systems. The standard permits phase

synchronization accuracy better than 1 nanosecond.

Clock devices provide synchronization including frequency synchronization and phase

synchronization. The IEEE 1588v2 protocol is mainly used to implement phase

synchronization. It can also be used to implement frequency synchronization.

ZXMP M721 supports out-band / in-band 1588V2 transmission.

3.6 Flexible Bandwidth Utilization Based on ODUflex

ZXMP M721 supports the optical data unit flexible (ODUflex) feature. This feature

enables the ZXMP M721 to adapt itself to various services, such as video, storage, and



data services as well as future IP services.

3.7 Transmission Codes

ZXMP M721 supports multi-span transmission, e.g., 18×22dB, 7×30dB, 1×45dB without

OEO processing for DWDM system. It also supports single span transmission up to 28dB

for CWDM 2.5G system, the target transmission distance for CWDM 10G system is

80KM.

3.8 Equipment Protection

3.8.1 Power Supply Protection

1. Power Supply Input 1+1 Protection

ZXMP M721 supports power supply input hot backup, DC 1+1 and AC 1+1, which

ensures that the equipment works safely if any power supply is down. Any one of two

M1PW-DC/M1PW-AC Boards could be independently plugged and exchanged without

affecting the service. The power input of DC is -48V or -60V (-40V~-72V), the power

input of HVDC is 240V or 336V (192V~400V) and the power input of AC is 110V or 220V

(100V~240V).

2. Over-current Protection

Adopt fuse protection. If the input current exceeds the nominal value, fuse burns to avoid

the equipment damages caused by high input current.

3. Board Protection

Board adopts decentralized power supply mode to isolate the power supply effects

among the Boards. All the Boards provide over-current protection and over-voltage

protection.



3.8.2 Control Board 1+1 protection

ZXMP M721 provides NCP Board 1+1 protection, and ensures the reliability of

equipment management.

3.9 Networking Protection

3.9.1 OMS 1+1 Protection

The OMS 1+1 protection of ZXMP M721 adopt line 1+1 protection. According to the

location of OA Boards, OMS 1+1 protection can be classified into OA shared

configuration mode and OA redundant configuration mode.

1. OA shared configuration mode

M1SOP Board is located after the main optical signals amplified by OA Board at the

transmitting end, and before the main optical signals without the amplification by OA

Board at the receiving end, as shown in Figure 3-7.

Figure 3-7 Function Modules of OMS 1+1 Protection (OA Shared Mode)

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

2. OA redundant configuration mode



M1SOP Board is located before the main optical signals amplified by OA Board at the

transmitting end, and after the main optical signals amplified by OA Board at the

receiving end, as shown in Figure 3-8.

Figure 3-8 Function Modules of OMS 1+1 Protection (OA Redundant Mode)

3.9.2 OCh 1+1 Protection

The ZXMP M721 supports optical channel 1+1 protection.

OCh 1+1 protection can be classified into OTU Board shared configuration mode and

OTU Board redundant configuration mode.

1. OTU Board redundant configuration mode

For OCh 1+1 protection, a pair of transmitter OTU Board and receiver OTU Board is

configured for both the working channel and the protection channel. An M1SOP Board

can protect a pair of bidirectional service. In the OCh 1+1 protection, the quantity of

M1SOP Board configured in the system should be consistent with the quantity of channel

to be protected.

OTU Board redundant configuration is applied in chain networking and ring networking

modes. In the chain network, the working channel and protection channel are transmitted

in the same fiber, which can realize equipment protection but not the route protection. In

the ring network, the working channel and protection channel are transmitted to the

receiving end through different routes, which can realize both the route protection and

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C



equipment protection. Two networking modes are described in Figure 3-9 and Figure

3-10.

Figure 3-9 OCh 1+1 Protection (OTU Board Redundant Configuration Mode, Chain

Network)

Figure 3-10 OCh 1+1 Protection (OTU Board Redundant Configuration Mode, Ring

Network)

2. OTU Board shared configuration mode

A pair of transmitter OTU Board and receiver OTU Board is configured for both the

working channel and the protection channel.

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C

TD2C



OTU Board shared configuration mode is only suitable for ring network. Protection

channel and working channel reach the receiving end through different routes in order to

realize the route protection, as shown in Figure 3-11.

Figure 3-11 OCh 1+1 Protection in Ring Network (OTU Board Shared Mode)

3.10 Inbuilt Optical Channel Line Side 1+1 Protection

M1MQA1,M1MQM1, M2MQA1, M1MQA2, M2MQA2，M1MOM2Band M1TS2CP provide

inbuilt optical channel line side 1+1 protection, which can save protection board and

sub-rack slot.

Take M1MQA1 as example, inbuilt optical channel line side 1+1 protection is shown in

Figure 3-12.

TD2C

TD2C

TD2C

TD2CTD2C



Figure 3-12 Inbuilt Optical Channel Line Side 1+1 Protection

3.11 EMS/SNMS Channel Protection

The ZXMP M721 can be configured standby route of EMS/SNMS channel.

After the invalidation of optical supervision channel, NCP Board can ensure the

transmission and exchange of supervision information through standby route.



4 System Architecture

This chapter briefly introduces the overall structure of ZXMP M721, including hardware,

software, and its applications.

The function modules of ZXMP M721 are shown in Figure 4-1.

Figure 4-1 Function Modules of ZXMP M721

ZXMP M721 consists of hardware system and software system, which are independent

of each other and work coordinately.

4.1 Product Physical Structure

ZXMP M721 supports flexible installation modes: rack installation and wall-hanging

installation. For different installation modes, the hardware components of the equipment

are different.

1. Wall-hanging Installation Mode

Wall-hanging installation mode applies sub-rack with DC or AC input, as shown in Figure

4-2, Figure 4-3. Fiber tray and DCM tray are optional components.

ZXMP M721 Compact WDM Transmission Platform

Hardware Structure Software Structure

Serv

ice

Subsyste

m

Pow

er S

upp

ly

Subsyste

m

MU

X/D

eM

UX

Subsyste

m

Am

plific

atio

n

Subsyste

m

Pro

tectio

n

Subsyste

m

Card

Softw

are

Age

nt

NetN

um

en

U31

Mana

ge

ment

Subsyste

m



Figure 4-2 ZXMP M721 wall-hanging installation (DX62)

Figure 4-3 ZXMP M721 wall-hanging installation (DX61)

2. Rack Installation

ZXMP M721 supports the installation in the IEC/ETS standard rack. Take the unified ZTE

rack for example; the hardware components for the rack installation consist of power

distribution box, sub-rack, fiber tray and DCM tray. DCM tray is optional component.

4.2 Hardware Structure

ZXMP M721 hardware architecture can be divided into six subsystems based on

different function modules: management subsystem, service access subsystem,

Mux/DeMux subsystem, amplification subsystem, power supply subsystem and

protection subsystem.

1. Management sub-system



Management subsystem consists of NCP Board. It provides a variety of functions, such

as communication management, EMS/SNMS management interface and supervision

channel transmission.

2. Service sub-system

Service access subsystem consists of optical transponder Boards and muxponder

Boards. It implements access for one-channel or multi channel client services, converges

or converts the services, and outputs optical signals in compliance with ITU-T G.692.

Furthermore, the service access subsystem can realize a variety of functions, such as

FEC coding/decoding and performance monitoring for client signals.

3. Mux/DeMux sub-system

Mux/DeMux subsystem consists of add/drop multiplexing Board, Mux/DeMux Board,

which provides the functions of multiplexing/demultiplexing and add/drop.

4. Amplification sub-system

Amplification subsystem consists of M3SEOA Board and DCM module to implement

amplification and dispersion compensation for optical signals and add/drop function for

monitoring channel.

5. Power supply sub-system

Power supply subsystem is composed of M1PW-DC/M1PW-AC Board to provide the

functions of power supply and heat dissipation for the sub-rack.

6. Protection sub-system

Protection subsystem consists of M1SOP Board to realize multiple protection schemes.

4.2.1 Sub-rack

The outline dimension of a DX61 sub-rack is 45×442×238 (height × width × depth, unit:

mm), and the outline dimension of a DX62 sub-rack is 89×442×238(height × width ×

depth, unit: mm), and the outline dimension of a DX63 sub-rack is 134×442×238 (height

× width × depth, unit: mm). The slot arrangement of ZXMP M721 sub-racks are shown

below.



Figure 4-4 Slots Arrangement of ZXMP M721 DX61 Sub-rack (DC input)

Figure 4-5 Slots Arrangement of ZXMP M721 DX61 Sub-rack (AC input)

Figure 4-6 Slots Arrangement of ZXMP M721 DX62 Sub-rack (DC input)

Figure 4-7 Slots Arrangement of ZXMP M721 DX62 Sub-rack (AC input)

Figure 4-8 Slots Arrangement of ZXMP M721 DX63 Sub-rack

4.2.2 Board Description

Table 4-1 lists the description of the Boards of ZXMP M721.

NCP(II)

PW-DC F

A

NPW-DC

NCP(II)PW-AC

F

A

N

PW-DCF

A

N

PW-DC

NCP(I)

NCP(I)

NCP(II)

NCP(II)

PW-DC F

A

NPW-AC

PW-DC NCP(I)

F

A

N

PW-DC



Table 4-1 Board Descriptions

Board Name Description Remarks

M2NCP Node Control

Processor

M2NCP Board is used as an NE

control processor in the management

subsystem, implementing NE-level

network management function. OSC

is integrated into NCP with 2 SFP

interfaces.

M1TD2C Transponder of two

10G services

Access the service of STM-64,

OTU2/OTU2e/OTU1f, 10 GE, 8G

FC, 10G FC, Infiniband 10G etc.

M1TS2C Transponder of one

10G service




M1TS2CP

Transponder of one

10G service with

OCH 1+1 protection




M1MQA1

Muxponder of 4

channels ANY

Access to OTU1

Board

Access four channels of any rate

service ranging from 100Mbps to

2.67Gbps.

M1MQM1

Muxponder of 4

channels Multiple

Access to OTU1

Board

Access four channels of GE or

STM-1/4/16.

M2MQA1

Muxponder of 4

channels ANY

Access to OTU1

Board



2.67Gbps.

Support 1588V2 and Sync E.

M1MQA2

Muxponder of 4

channels ANY

Access to OTU2

Board


service ranging from 1.0625Gbps to

4.25Gbps.

M2MQA2

Muxponder of 4

channels ANY

Access to OTU2

Board

Access 4 channels of any rate


9.83Gbps.


M1MJA Muxponder 6 Any rate service from 100Mbps to




channels ANY

Access

2.5Gbps.

M1MJM

Muxponder 6

channels Multiple

Access

Access 6 channels of GE or STM-16.

M2MJA

Muxponder 6

channels ANY

Access

Any rate service from 100Mbps to

2.5Gbps.


M1MOM2B

Muxponder of 8

channels any rate to

2×OTU2

Access 8 channels of FE/GE or

STM-1/4/16.

Support Sync E.

M1MHE1

Muxponder of 16

E1/T1 and 1

STM-1/4 to 2×OTU1

16×E1/T1+1×STM-1/4 on client

side, 2×OTU1 on line side

M1ASMB

Aggregation Switch

Muxponder (Type

B)

Implement the L2 switch function

with 8 GE client interface and 2

10GE client interface and two 10GE

line interface.

M1SCOMD(s) CWDM Optical

mux/demux Board

SCOMD Boards are used in 18

channel system; SCOMDS is used in

single fiber system.

M3SEOBA Enhanced optical

booster amplifier

It uses the erbium-doped fiber

amplifier (EDFA) to boost optical

power of signals. It is usually located

at the transmitting end.

Support VOA SFP.

M3SEOPA Enhanced optical

pre-amplifier

It uses the erbium-doped fiber

amplifier (EDFA) to pre-amplify

optical signals. It is usually located at

the receiving end.

Support VOA SFP.

M3OMU40 Optical multiplex unit

Combine optical signals with different

wavelengths to one fiber, and

provides 40 multiplexer.

M3ODU40 Optical demultiplex

unit

Separates optical signals of different

channels in one fiber from each

other, and provides40




demultiplexer.

M1SOAD4

Optical add/drop

multiplex Board of 4

Wavelength

Implement add/drop for 4–channel,

and pass-through wavelengths.

M1SOAD4(S, II)

Optical add/drop


Wavelength, with

OSC channel

Implement add/drop for 4–channel,

and pass-through wavelengths. With

OSC channel

M1SCOAD2-S

Optical add/drop


Wavelengths with

supervision port

Implement add/drop for 2–channel

and pass-through wavelengths with

supervision port

M1SCOAD1-US

Optical add/drop


Wavelengths with

upgrade and

supervision port



supervision port

M1SCOAD1-U

Optical add/drop


Wavelengths with

upgrade port



upgrade port

M1SOP1 Optical protection

Board(1-ch)

Provide 1+1 protection for the optical

multiplex section or optical channel

mainly in the “concurrent

sending/optimum receiving” mode. M1SOP2

Optical protection

Board(2-ch)

M1SSDMT

Supervisory division

multiplexing Board

for transmitter side

Add 1510nm optical supervision

signals into optical fiber.

M1SSDMR

Supervisory division

multiplexing Board

for receiver side

Drop 1510nm optical supervision

signals from optical fiber.

M1EI Expansion interface

Board

Drive rack lamp and support alarm

input.

M1EIC Expansion interface

Board（type C ）

Drive rack lamp and support alarm

input.




Support POE.

M1PW-DC Power Board (DC

input) DC input

M1PW-AC Power Board (AC

input) AC input

M1BITSB

Bearing Integrated

Timing

synchronization

board （type B ）

Support Sync E, implement the

transmission and the distribution of

clock, as well as time information

complying with 1588V2.

4.3 Software Structure

ZXMP M721 software structure is comprised of Board software and Agent, which are

respectively running on the Boards and NCP to realize the management and control for

the Boards and NE.

1. Board Software

During the operation process of the Boards, Board software manages monitors and

controls the operation status of the Boards. Board software receives commands of

EMS/SNMS from the Agent on NCP Board. And it processes responses and reports

alarm and performance events to EMS/SNMS.

The functions of Board software include: alarm performance treatment, configuration

management, communication management, Board software online download, and

functional circuit driven.

2. Agent

Agent is located on the NCP Board to manage, monitor and control the Board operation

status in the NE. As a communication service unit between network management system

and Boards, Agent realizes control and management for NEs. Agent supports two

functions described as follows.

Configure Boards during power-on initialization of the NEs.



Control alarm and performance status of the whole NE during the normal operation

situation. Receive EMS/SNMS monitoring and configuration commands from

gateway NE through ECC interface, and report command treatment result, NE

alarm and performance status. Gateway NE connects with EMS/SNMS through Ox

interface, or connects with LCT through f interface.

3. EMS Software

ZXMP M721 adopts NetNumenTM U31 to implement unified management and monitoring

for NEs. The network management software includes various functions, such as fault

management, performance management, safety management, configuration

management, maintenance management and system management.

4.3.1 NM Software Structure

ZXMP M721 uses NM software to manage and monitor different NEs. The software has

such functions as fault management, performance management, safety management,

configuration management, maintenance management and system management.

NM software structure is shown in Figure 4-9.

Figure 4-9 NM software structure

GUI

ManagerCard

Software

Control

Software

NM software, Board software, NCP software

1. Manager



It is also known as Server. Manager is equivalent to Server for GUI. Manager sends

management command to NCP software via Qx interface, receives the notifications from

NCP software, save all network management data into the database, including such

basic data as system management, configuration management and alarm maintenance.

Manage saves only network management data of local domain.

2. GUI

It is also known as Client. The user carries out such operations as configuration

management, fault management, performance management, safety management,

maintenance management and system management via GUI. GUI basically does not

save dynamic NM data which is extracted from the database by the user via Manager.

3. Database

It is in charge of information query and configuration of GUI and management functional

modules, the storage of such information as alarm and the processing of data

consistency.

4.4 System Configuration

ZXMP M721 can be configured as an optical terminal multiplexer (OTM), optical

add/drop multiplexer (OADM) or an optical line amplifier (OLA).

4.4.1 Optical Terminal Multiplexer (OTM)

The OTM can add/drop all the services to implement the line terminal node function. As

an OTM, the relationship between platforms is shown in Figure 4-10.



Figure 4-10 Function Modules of the OTM

10GE

STM-64

STM-64

STM-64

TD2C

TD2C

TD2C

TD2C

SO

AD

SEOBA

SEOPA

EMS

Power

Supply

Power

Supply

Card N

C

P

Line

Fiber

4.4.2 Optical Add/Drop Multiplexer (OADM)

The OADM can add/drop the specified fixed wavelengths services and pass straight

through other services. As an OADM, the relationship between platforms is shown in

Figure 4-11.

Figure 4-11 Function Modules of the OADM

SEOBA

SEOPA

EMSPower

Supply

Power

Supply

Card

N

C

P

Line

Fiber

Line

Fiber

SEOPA

SEOBA

SO

AD

SO

AD

MID1 MID2

TD

2C

TD

2C

TD

2C ...

TD

2C

TD

2C

TD

2C ...

SO

AD

SO

AD

MID1MID2

TD

2C

TD

2C

TD

2C

...

TD

2C

TD

2C

TD

2C

...



4.4.3 Optical Line Amplifier (OLA)

The OLA is used to compensate the optical signal power for long distance transmission.

As an OLA, the relationship between platforms is shown in Figure 4-12.

Figure 4-12 Function Modules of the OLA

D

C

MSEOBA

SEOPA

EMS

Power

Supply

Power

Supply

Card N

C

P

Line

Fiber

Line

Fiber

SEOPA

SEOBA

D

C

M



5 Technical Specification

This chapter introduces technical specification of ZXMP M721, including working

wavelength, physical specification, power supply and the system component indices of

several kinds of Boards.

5.1 Working Wavelength Requirements

5.1.1 Dedicated Continual Wavelength

ZXMP M721 system uses C band wavelengths with the spacing at 100 GHz. Table 5-1

shows the allocation of continuous wavelengths in a 40-channel system.

Table 5-1 Allocation of Wavelengths in a 40-Channel System (C Band/Spacing: 100

GHz)

S/N

Nominal

Central

Frequency

(THz)

Nominal

Central

Wavelength

(nm)

S/N

Nominal

Central

Frequency

(THz)

Nominal

Central

Wavelength

(nm)

1 192.1 1560.61 21 194.1 1544.53

2 192.2 1559.79 22 194.2 1543.73

3 192.3 1558.98 23 194.3 1542.94

4 192.4 1558.17 24 194.4 1542.14

5 192.5 1557.36 25 194.5 1541.35

6 192.6 1556.55 26 194.6 1540.56

7 192.7 1555.75 27 194.7 1539.77

8 192.8 1554.94 28 194.8 1538.98

9 192.9 1554.13 29 194.9 1538.19

10 193.0 1553.33 30 195.0 1537.40

11 193.1 1552.52 31 195.1 1536.61

12 193.2 1551.72 32 195.2 1535.82

13 193.3 1550.92 33 195.3 1535.04

14 193.4 1550.12 34 195.4 1534.25



S/N

Nominal

Central

Frequency

(THz)

Nominal

Central

Wavelength

(nm)

S/N

Nominal

Central

Frequency

(THz)

Nominal

Central

Wavelength

(nm)

15 193.5 1549.32 35 195.5 1533.47

16 193.6 1548.51 36 195.6 1532.68

17 193.7 1547.72 37 195.7 1531.90

18 193.8 1546.92 38 195.8 1531.12

19 193.9 1546.12 39 195.9 1530.33

20 194.0 1545.32 40 196.0 1529.55

5.1.2 Dedicated Discontinuous Wavelength

When M1SOGMD board is used in a ZXMP M721 system for wavelength multiplexing

and demultiplexing, some wavelengths cannot be used due to the technique limitations

of filters. We call these wavelengths unavailable wavelengths, which is also called black

wavelengths.

In this case, the system works in C band with the spacing at 100 GHz. Although C band

includes 40 wavelengths, only 32 non-continuous wavelengths of them can be used. The

detailed allocation of no-continuous wavelengths is listed in Table 5-2. The wavelengths

shaded in the table are unavailable wavelengths.

Table 5-2 No-continuous Wavelengths and Corresponding Central Frequencies

S/

N

Nominal

Central

Frequency

(THz)

Nominal

Central

Wavelength

(nm)

S/N

Nominal

Central

Frequency

(THz)

Nominal

Central

Wavelengt

h (nm)

1 192.1 1560.61 21 194.1 1544.53

2 192.2 1559.79 22 194.2 1543.73

3 192.3 1558.98 23 194.3 1542.94

4 192.4 1558.17 24 194.4 1542.14

5 192.5 1557.36 25 194.5 1541.35

6 192.6 1556.55 26 194.6 1540.56



S/

N

Nominal

Central

Frequency

(THz)

Nominal

Central

Wavelength

(nm)

S/N

Nominal

Central

Frequency

(THz)

Nominal

Central

Wavelengt

h (nm)

7 192.7 1555.75 27 194.7 1539.77

8 192.8 1554.94 28 194.8 1538.98

9 192.9 1554.13 29 194.9 1538.19

10 193.0 1553.33 30 195.0 1537.40

11 193.1 1552.52 31 195.1 1536.61

12 193.2 1551.72 32 195.2 1535.82

13 193.3 1550.92 33 195.3 1535.04

14 193.4 1550.12 34 195.4 1534.25

15 193.5 1549.32 35 195.5 1533.47

16 193.6 1548.51 36 195.6 1532.68

17 193.7 1547.72 37 195.7 1531.90

18 193.8 1546.92 38 195.8 1531.12

19 193.9 1546.12 39 195.9 1530.33

20 194.0 1545.32 40 196.0 1529.55

5.1.3 Dedicated CWDM Wavelength

The wavelength assignment in CWDM system is shown in Table 5-3.

Notes: The wavelengths from 1 to 8 can be used to transmit 10G service.

Table 5-3 Wavelengths assigned in CWDM system

SN Central Wavelength (nm)

1 1471

2 1491

3 1511

4 1531

5 1551

6 1571



SN Central Wavelength (nm)

7 1591

8 1611

9 1271

10 1291

11 1311

12 1331

13 1351

14 1371

15 1391

16 1411

17 1431

18 1451

5.2 Physical Specifications

5.2.1 Dimension

The structure specifications of ZXMP M721 are described in Table 5-4.

The weight shown in the table is that of the fiber tray without fittings in.

Table 5-4 Structure Specifications of ZXMP M721

Equipment Element Outline Dimension (height

width × depth, unit: mm) Weight (kg)

Unified rack of ZTE

transmission equipment

2000 × 600 × 300 59

2200 × 600 × 300 65

Sub-rack

DX61: 45 × 442 × 238 3

DX62: 89 × 442 × 238 3.7

DX63: 134 × 442 × 238 6.7

Fiber Tray 44 × 440 × 265 2.5

DCM Tray 43.6 × 482.6 × 269.5 4



Equipment Element Outline Dimension (height

width × depth, unit: mm) Weight (kg)

M1PW-DC Panel: 20 (height) × 95 (width) 0.2

M1PW-AC Panel: 40 (height) × 95 (width) 0.8

Line-Board Panel: 20 (height) × 155.6 (width)

The weight is

shown in Table

5-5

Table 5-5 ZXMP M721 Board Weight

Board Name Code Weight (kg)

M1TD2C M1TD2C 0.7

M1TS2C M1TS2C 0.7

M1TS2CP M1TS2CP 0.7

M1MQA1 M1MQA1 0.6

M1MQM1 M1MQM1 0.6

M2MQA1 M2MQA1 0.6

M1MQA2 M1MQA2 0.6

M2MQA2 M2MQA2 0.6

M1MJA M1MJA 0.5

M1MJM M1MJM 0.5

M2MJA M1MJA 0.5

M1MHE1 M1MHE1 0.5

M1ASMB M1ASMB 0.8

Enhanced Optical Boost Amplifier M3SEOBA 0.6

Enhanced Optical Pre-Amplifier M3SEOPA 0.6

Optical Add/Drop Board of 4 Wavelength M1SOAD4 0.6

DWDM Optical Add-Drop Board of 2 Bidirectional

wavelength M1SOAD2D 0.6

Optical multiplex unit M3OMU40 0.8

Optical demultiplex unit M3ODU40 0.8

CWDM Optical Add/Drop Board of 1 Wavelength

with Supervision Channel and Upgrade Port

M1SCOAD1-

US 0.6

CWDM Optical Add/Drop Board of 1 Wavelength M1SCOAD1- 0.6



Board Name Code Weight (kg)

with Upgrade Port U

CWDM Optical Add/Drop Board of 2 Wavelengths

with Supervision Channel

M1SCOAD2-

S 0.6

Optical Protection Board of 1 Wavelength M1SOP1 0.6

Optical Protection Board of 2 Wavelengths M1SOP2 0.6

Supervision Division Multiplexing M1SSDM 0.6

CWDM Optical Multiplexer & Demultiplexer M1SCOMD 0.6

Expansion Interface Board M1EI 0.5

Expansion Interface Board（C type） M1EIC 0.5

Net Control Processor M2NCP 0.2(II)

0.3(I)

Bearing Integrated Timing synchronzation board

（B type） M1BITSB 0.4

5.2.2 Bearing requirements for Equipment Room

The bearing capacity of equipment room should be greater than 450 kg/m2 so as to hold

the ZXMP M721 equipment.

5.3 Power Supply Specifications

5.3.1 Power Supply Requirement

The power supply requirements of ZXMP M721 are described as follows:

-48 V or -60 V DC (-72 V ~ -40 V)

110 V or 220 V AC (100 V ~ 240 V)

240 V or 336 V HVDC (192 V ~ 400 V)

5.3.2 Power Consumption Specifications

The power consumption of each Board of the ZXMP M721 is shown in Table 5-6.



Table 5-6 Board Power Consumptions of ZXMP M721

Board Typical Power

Consumption(W)

Maximum Power

Consumption(W) Remark

M1TD2C 28 30

M1TS2C 18 20

M1TS2CP 26 28

M1MQA1 38 40

M1MQM1 28 32

M2MQA1 38 40

M1MQA2 38 40

M2MQA2 43 49

M1MJA 38 40

M1MJM 28 31

M2MJA 37 40

M1MOM2B 41 44

M1MHE1 28 31

M1ASMB 75 78

M3SEOBA

11 15

For

M3SEOBA

1717

14 20

For

M3SEOBA

2220

M3SEOPA 11 15

M1SOAD4 5 6

M1SOAD2D 4 5

M3OMU40 8 5

M3ODU40 8 5

M1SOAD4(S, II) 4 5

M1SCOAD2-S 4 5

M1SCOAD1-US 4 5

M1SCOAD1-U 4 5

M1SOP1 4 5



Board Typical Power

Consumption(W)

Maximum Power

Consumption(W) Remark

M1SOP2 5 6

M1SSDM 4 5

M1SCOMD 4 5

M1PW-DC 8 14

M1PW-AC 10 16

M1FAN/M3FAN 14 23

M2FAN 8 12

M1FANF 19 36

M1EI 4 5

M1EIC 4 5

M2NCP 13 14

M1BITSB 24 27

5.4 Environment Conditions

5.4.1 Grounding Requirements

1. Internal grounding requirements of the system:

The Board shielding plate is grounded via the panel to the case, and there is no

electronic connection inside a Board.

The rack and sub-rack case are connected to the protective ground.

2. The equipment room grounding requirements:

Grounding resistance of the AC

Combined



If the equipment room provides the working ground and the protection ground, the

working and protection grounds of the equipment shall be connected to the relevant

grounding copper bar. If the equipment room only provides a copper ground bar, it is

allowed to jointly earth the working and protection grounds. The resistance values shall

meet the above requirements.

5.4.2 Temperature and Humidity Requirements

The requirements on ambient temperature and relative humidity of ZXMP M721 are

shown in Table 5-7.

Table 5-7 Temperature and Humidity Requirements

Item Indices

Ambient temperature

Performance indices guaranteed +5℃ ~ + 40℃

Long time Operation guaranteed 0℃ ~ + 45℃

Short time Operation guaranteed -5℃ ~ +50℃

Relative humidity (35℃) Performance indices guaranteed 10% ~ 90%

Operation guaranteed 5% ~ 95%

In normal working environment, the measuring spot of humidity and temperature is the

data measured at the spot 1.5 m above the floor and 0.4 m in front of the equipment.

5.4.3 Requirements of Cleanness

Cleanness involves dust and harmful gases in the air. The equipment should be

operated in the equipment room that meets the cleanness requirements described

below:

1. In the transmission equipment room, there is no explosive, electrically conductive,

magnetically conductive or corrosive dust.

2. The concentration of dust particles with the diameter greater than 5µm should be

less than or equal to 3 × 104 particles/ m³.

3. There is no corrosive metal or gases that are detrimental to the insulation in the

equipment room. For details, please refer to Table 5-8.



Table 5-8 Requirements for Harmful Gases in the Equipment Room

Harmful Gas Mean Value (mg/m3) Max. Value (mg/m3)

SO2 0.2 1.5

H2S 0.006 0.03

NO2 0.04 0.15

NH3 0.05 0.15

CL2 0.01 0.3

4. The equipment room should be always kept clean, with doors and windows closed.

5.5 System Component Indices

5.5.1 Management Subsystem Specifications

5.5.1.1 M2NCP Specifications

M2NCP Specifications for DWDM and CWDM are shown in Table 5-9 and Table 5-10.

Table 5-9 Specifications of M2NCP Board for DWDM

Item Unit Specification

80km 120km 140km

Optical signal type - 100BASE-FX

Operating wavelength nm 1510±10

Signal code - 4B/5B

Supervision rate Mbit/s 100

Signal transmission

power dBm -3 to +2 +2 to +7 +3 to +10

Minimum receiving

sensitivity dBm -37 -37 -43

Table 5-10 Specifications of M2NCP Board for CWDM




1310nm SFP 1311nm SFP 1451nm SFP

Signal

transmission

power

dBm -5～0 0～5 -3～5

Central

frequency offset nm

Minimum

receiving

sensitivity

dBm -34 -36 -34

Span distance km 60 80 60

Application -

Bidirectional

single fiber

system

Bidirectional

dual-fiber system

Bidirectional

single fiber

system

5.5.1.2 M1BITSB Specifications

The specifications of M1BITSB Board are shown in Table 5-11.

Table 5-11 Specifications of M1BITSB Board


Parameters of input port (S point)

Receiving sensitivity dBm

-17 (1000BASE-SX)

-19 (1000BASE-LX)

-20 (1000BASE-LH1)

-22 (1000BASE-ZX)

Overload power dBm

0 (1000BASE-SX)

-3 (1000BASE-LX)

-3 (1000BASE-LH1)

-3 (1000BASE-ZX)

Parameters of output port (R point)

Mean launched power dBm -9.5 to -3 (1000BASE-SX)



5.5.2 Optical Transponder Unit Specifications

5.5.2.1 M1TD2C Specifications

The detailed information is shown in Table 5-12 and Table 5-13.

Table 5-12 Specifications of M1TD2C Board for DWDM



-12) dBm

-14 (I64.1)

-16 (S64.2b)

-12.6 (10GBASE-LR/LW)

-14.1 (10GBASE-ER/EW)

-14 (1200-SM-LL-L)

Receiver reflection dB

>14 (I64.1)

>27 (S64.2b)

>14 (10GBASE-LR/LW)

>27 (10GBASE-ER/EW)

>14 (1200-SM-LL-L)

Overload power dBm

0 (I64.1)

-1 (S64.2b)

0 (10GBASE-LR/LW)

-1 (10GBASE-ER/EW)

0 (1200-SM-LL-L)

Wavelength of input signals nm 1280 to 1565

Parameters of output port (Sn point)

Maximum bandwidth @ -20 dB nm 0.3

Minimum side mode compression ratio

(SMCR) dB 30

Nominal central frequency THz Compliant with ITU-T

G.694.1

Central frequency offset GHz ≤±12.5 (spacing: 100 GHz)

Mean launched power dBm -3 to +1




Minimum extinction ratio dB 8.2

Dispersion tolerance ps/nm -300~+800

Eye diagram - ITU-T G.691

Parameters of input port (Rn point)

-12) dBm -14 (PIN)

-21 (APD)

Receiver reflection dB >27

Overload power dBm 0 (PIN)

-9 (APD)

Wavelength area of input signals nm 1280 to 1565


Mean launched power dBm

-6 ~ -1 (I64.1)

-1 ~ 2 (S64.2b)

-8.2 ~ 0.5

(10GBASE-LR/LW)

-4.7 ~ 4

(10GBASE-ER/EW)

-6 ~ -1 (1200-SM-LL-L)

Minimum extinction ratio dB

6 (I64.1)

8.2 (S64.2b)

6 (10GBASE-LR/LW)

8.2 (10GBASE-ER/EW)

6 (1200-SM-LL-L)

Eye diagram - Compliance with ITU-T

G.691

Table 5-13 Specifications of M1TD2C Board for CWDM 10G



-12) dBm -14 (I64.1)

-16 (S64.2b)




-12.6 (10GBASE-LR/LW)

-14.1 (10GBASE-ER/EW)

-14 (1200-SM-LL-L)

Receiver reflection dB

>14 (I64.1)

>27(S64.2b)

>14 (10GBASE-LR/LW)

>27(10GBASE-ER/EW)

>14 (1200-SM-LL-L)

Overload power dBm

0 (I64.1)

-1 (S64.2b)

0 (10GBASE-LR/LW)

-1 (10GBASE-ER/EW)

0 (1200-SM-LL-L)




(SMCR) dB 30

Nominal central wavelength nm 1471/1491/1511/1531/155

1/1571/1591/1611

Central wavelength offset nm ≤±6.5

Mean launched power dBm +1~+5


Dispersion tolerance ps/nm 1400



-12) dBm -21(APD)


Overload power dBm -9

Wavelength area of input signals nm 1460~1620


Mean launched power dBm -6 ~ -1 (I64.1)

-1 ~ 2 (S64.2b)




-8.2 ~ 0.5

(10GBASE-LR/LW)

-4.7 ~ 4

(10GBASE-ER/EW)

-6 ~ -1 (1200-SM-LL-L)

Minimum extinction ratio dB

6 (I64.1)

8.2 (S64.2b)

6 (10GBASE-LR/LW)

8.2 (10GBASE-ER/EW)

6 (1200-SM-LL-L)


G.691

The maximum measured jitter value, measured within one minute, should not exceed the

reference given in Table 5-14.

Table 5-14 Jitter Specifications for M1TD2C

Interface Testing Bandwidth Peak-Peak

Value (UIpp) High-Pass Filter (kHz) Low-Pass Filter (MHz)

STM-64

(optical)

20 80 0.30

4000 80 0.10

1. For transfer functions of high-pass filter and low-pass filter, refer to ITU-T G.825.

2. For STM-64, 1 UI = 0.10 ns.

3. For testing time and principle, please refer to ITU-T G.825.

Repeater Jitter transfer specifications are in compliance with ITU-T G.783. The Jitter

transfer specifications of optical interface at 3R line side, carrying SDH signals, are

described in Table 5-15. The jitter transfer characteristic is shown in Figure 5-1.

Table 5-15 Jitter Transfer Specifications at 3R Line Side for M1TD2C

Interface fL (kHz) fC(kHz) fH (kHz) P (dB)



Interface fL (kHz) fC(kHz) fH (kHz) P (dB)

STM-64 10 1000 80000 0.1

Figure 5-1 M1TD2C Jitter Transfer Specifications of Optical Interface at Line Side

5.5.2.2 M1TS2C/M1TS2CP Specifications

Refer to M1TD2C specifications.

5.5.3 Optical Muxponder Unit Specifications

5.5.3.1 M1MQA1 Specifications

M1MQA1 can be used in DWDM or CWDM system. The specifications of M1MQA1

Board are shown in Table 5-16 and Table 5-17.

Table 5-16 Specifications of M1MQA1 Board for CWDM




-17 (1000BASE-SX)

-19 (1000BASE-LX)

-20 (1000BASE-LH1)

-22 (1000BASE-ZX)

-19 (100-SM-LL-I)

-20 (200-SM-LL-I)

Overload power dBm 0 (1000BASE-SX)




-3 (1000BASE-LX)

-3 (1000BASE-LH1)

-3 (1000BASE-ZX)

-3 (100-SM-LL-I)

0 (200-SM-LL-I)


Light source type - -



(SMCR) dB 35

Nominal central wavelength nm

1271/1291/1311/1331/1351/

1371/1391/1411/1431/1451/

1471/1491/1511/1531/1551/

1571/1591/1611



0~5(It may be less than 0

dBm in short distance

transmission.)



G.957


-12) dBm -21 (PIN)

-28 (APD)



-9 (APD)




-9.5 to -3 (1000BASE-SX)

-11 to -3 (1000BASE-LX)

-4 to 0 (1000BASE-LH1)

-2 to +3 (1000BASE-ZX)




-11 to -3 (100-SM-LL-I)

-12 to -3 (200-SM-LL-I)

Table 5-17 Specifications of M1MQA1 Board for DWDM




-17 (1000BASE-SX)

-19 (1000BASE-LX)

-20 (1000BASE-LH1)

-22 (1000BASE-ZX)

-19 (100-SM-LL-I)

-20 (200-SM-LL-I)

Overload power dBm

0 (1000BASE-SX)

-3 (1000BASE-LX)

-3 (1000BASE-LH1)

-3 (1000BASE-ZX)

-3 (100-SM-LL-I)

0 (200-SM-LL-I)


Light source type



(SMCR) dB 35

Nominal central frequency THz 192.1 to 196.0

(spacing: 100 GHz)


Mean launched power dBm 0~5




G.957





-12) dBm -21 (PIN)

-28 (APD)



-9 (APD)




-9.5 to -3 (1000BASE-SX)

-11 to -3 (1000BASE-LX)

-4 to 0 (1000BASE-LH1)

-2 to +3 (1000BASE-ZX)

-11 to -3 (100-SM-LL-I)

-12 to -3 (200-SM-LL-I)

5.5.3.2 M1MQM1 Specifications

M1MQM1 can be used in DWDM or CWDM system. The specifications of M1MQM1

Board please refer to M1MQA1 specifications.


M2MQA1 can be used in DWDM or CWDM system. The specifications of M2MQA1

Board please refer to M1MQA1 specifications.


The specifications of M1MQA2 Board are shown in Table 5-18 and Table 5-19.

Table 5-18 Specifications of M1MQA2 Board for DWDM






Receiving sensitivity

FC

dBm

-18

2G FC -18

4G FC -18

GE -19

Overload power

1G FC

dBm

0

2G FC 0

4G FC 0

GE -3




(SMCR) dB 30


G.694.1




Dispersion tolerance ps/n

m -300~+800


G.691


Receiving sensitivity dBm -14 (PIN)

-21 (APD)



-9 (APD)



Mean launched power

1G FC

dBm

-4.5

2G FC -4.5

4G FC -4.5




GE -11~0

Table 5-19 Specifications of M1MQA2 Board for CWDM 10G



Receiving sensitivity

FC

dBm

-18

2G FC -18

4G FC -18

GE -19

Overload power

1G FC

dBm

0

2G FC 0

4G FC 0

GE -3



(SMCR) dB 30

Nominal central wavelength nm 1471/1491/1511/1531/1551/

1571/1591/1611





m 1400



-12) dBm -21(APD)





Mean launched power 1G FC dBm -4.5




2G FC -4.5

4G FC -4.5

GE -11~0


The specifications of M2MQA2 Board please refer to M1MQA2 specifications.

5.5.3.6 M1MJA Specifications

The specifications of M1MJA Board are shown in Table 5-20.

Table 5-20 Specifications of M1MJA Board




-17 (1000BASE-SX)

-19 (1000BASE-LX)

-20 (1000BASE-LH1)

-22 (1000BASE-ZX)

-19 (100-SM-LL-I)

-20 (200-SM-LL-I)

Overload power dBm

0 (1000BASE-SX)

-3 (1000BASE-LX)

-3 (1000BASE-LH1)

-3 (1000BASE-ZX)

-3 (100-SM-LL-I)

0 (200-SM-LL-I)



-9.5 to -3 (1000BASE-SX)

-11 to -3 (1000BASE-LX)

-4 to 0 (1000BASE-LH1)




-2 to +3 (1000BASE-ZX)

-11 to -3 (100-SM-LL-I)

-12 to -3 (200-SM-LL-I)

5.5.3.7 M1MJM Specifications

The specifications of M1MJM Board please refer to M1MJA specifications.

5.5.3.8 M1MJA Specifications

The specifications of M1MJA Board please refer to M1MJA specifications.

5.5.3.9 M1MOM2B Specifications

The specifications of M1MOM2B Board are shown in Table 5-21 and Table 5-22.

Table 5-21 Specifications of M1MOM2B Board for DWDM 10G



Receiving sensitivity GE dBm -19

Overload power GE dBm -3




(SMCR) dB 30


G.694.1





m -300~+800





G.691



-21 (APD)



-9 (APD)



Mean launched power GE dBm -11~0

Table 5-22 Specifications of M1MOM2B Board for CWDM 10G



Receiving sensitivity GE dBm -19

Overload power GE dBm -3



(SMCR) dB 30

Nominal central wavelength nm 1471/1491/1511/1531/1551/

1571/1591/1611





m 1400



-12) dBm -21(APD)








Mean launched power GE dBm -11~0

5.5.3.10 M1MHE1 Specifications

M1MHE1 can be used in DWDM or CWDM system. The specifications of M1MHE1

Board are shown in Table 5-23 and Table 5-24 Specifications of M1MHE1 Board for

DWDM.

Table 5-23 Specifications of M1MHE1 Board for CWDM




-23 (I4)

-18 (S4)

-28 (L4)

-23 (I1)

-28 (S1)

-34 (L1)

Overload power dBm

-8 (I4)

-8 (S4)

-8 (L4)

-8 (I1)

-8 (S1)

-10 (L1)

Impedance Ohm 75 (E1)

100 (T1)




Minimum side mode compression ratio dB 35




(SMCR)

Nominal central wavelength nm

1271/1291/1311/1331/1351/

1371/1391/1411/1431/1451/

1471/1491/1511/1531/1551/

1571/1591/1611



0~5(It may be less than 0

dBm in short distance

transmission.)



G.957


-12) dBm -21 (PIN)

-28 (APD)



-9 (APD)




-15 to -8 (I-4)

-15 to -8 (S-4)

-3 to +2 (L-4)

-15 to -8 (I-1)

-15 to -8 (S-1)

-5 to 0 (L-1)

Table 5-24 Specifications of M1MHE1 Board for DWDM



Receiving sensitivity dBm -23 (I4)

-18 (S4)




-28 (L4)

-23 (I1)

-28 (S1)

-34 (L1)

Overload power dBm

-8 (I4)

-8 (S4)

-8 (L4)

-8 (I1)

-8 (S1)

-10 (L1)

Impedance Ohm 75 (E1)

100 (T1)





(SMCR) dB 35


(spacing: 100 GHz)


Mean launched power dBm 0~5




G.957


-12) dBm -21 (PIN)

-28 (APD)



-9 (APD)







-15 to -8 (I-4)

-15 to -8 (S-4)

-3 to +2 (L-4)

-15 to -8 (I-1)

-15 to -8 (S-1)

-5 to 0 (L-1)

5.5.3.11 M1ASMB Specifications

M1ASMB can be used in DWDM or CWDM system. The specifications of M1ASMB

Board are shown blow.

Table 5-25 Specifications of M1ASMB Board for CWDM


Parameters of optical receive port at client side (S point)


-17 (1000BASE-SX)

-19 (1000BASE-LX)

-12.6 (10GBASE-LR)

-14.1 (10GBASE-ER)

Overload power dBm

0 (1000BASE-SX)

-3 (1000BASE-LX)

0.5 (10GBASE-LR)

-1 (10GBASE-ER)


Parameters of optical transmit port at line side (Sn point)

Minimum side mode compression ratio (SMCR) dB 30

Nominal central wavelength nm 1471/1491/1511/1531/

1551/1571/1591/1611









Parameters of optical receive port at line side (Rn point)


-21 (APD)



-9 (APD)


Parameters of optical transmit port at client side (R point)


-9.5 to -3

(1000BASE-SX)

-11 to -3

(1000BASE-LX)

-8.2 to 0.5

(10GBASE-LR)

-4.7 to 4.0

(10GBASE-ER)

Table 5-26 Specifications of M1ASMB Board for DWDM


Parameters of optical receive port at client side (S point)


-17 (1000BASE-SX)

-19 (1000BASE-LX)

-12.6 (10GBASE-LR)

-14.1 (10GBASE-ER)

Overload power dBm

0 (1000BASE-SX)

-3 (1000BASE-LX)

0.5 (10GBASE-LR)

-1 (10GBASE-ER)

Parameters of optical transmit port at line side (Sn point)




Minimum side mode compression ratio (SMCR) dB 30


Central frequency offset GHz ≤±12.5 (spacing: 100

GHz)



Dispersion tolerance ps/nm 800 (G.652)


G.691

Parameters of optical receive port at line side (Rn point)


-21 (APD)



-9 (APD)


Parameters of optical transmit port at client side (R point)


-9.5 to -3

(1000BASE-SX)

-11 to -3

(1000BASE-LX)

-8.2 to 0.5

(10GBASE-LR)

-4.7 to 4.0

(10GBASE-ER)

5.5.4 Mux/DeMux Unit Specifications

5.5.4.1 M3OMU Unit Specifications

The M3OMU40 indices of ZXMP M721 are listed in Table 5-27.



Table 5-27 M3OMU40 Performance Parameters (40 channels)

Item Unit M3OMU40(AWG)

Insertion loss dB <10

Max. difference of insertion losses

of channels dB <3

Channel spacing GHz 100

Light reflectance dB >40

Working wavelength range nm 1529 ~1561

Polarization-related loss dB <0.5

Polarization-mode dispersion ps <0.5

Temperature characteristics nm/C <0.005

5.5.4.2 M3ODU Unit Specifications

The performance parameters of ZXMP M721 M3ODU40 are listed in Table 5-28.

Table 5-28 ODU Performance Parameters (40 channels)

Item Unit M3ODU40(AWG)

Insertion loss dB < 10

Max. difference of

insertion losses of

channels

dB < 3


Optical return loss dB > 40

Working

wavelength range nm 1529~1561

Separation of

adjacent channels dB > 25

Separation of

non-adjacent

channels

dB > 30

Polarization-related

loss dB < 0.5



Item Unit M3ODU40(AWG)

Polarization-mode

dispersion ps < 0.5

Temperature

characteristics nm/C < 0.005

-1dB bandwidth nm > 0.2

5.5.4.3 M1SCOMD Specifications

ZXMP M721 provides various OMD Boards used in CWDM system, including

M1SCOMDS, M1SCOMD4-DX61S, M1SCOMD4-5U, M1SCOMD4-9U,

M1SCOMD5-14U, M1SCOMD4-5US, M1SCOMD4-9US and M1SCOMD5-14US.

M1SCOMDS is used in single fiber bidirectional transmission system, and other Boards

are used in 18 wavelengths CWDM system.

The main performance parameters of ZXMP M721 M1SCOMD Boards are shown in

Table 5-29, Table 5-30 and Table 5-31.

Table 5-29 Performance Parameters of M1SCOMDS Board

Parameter Unit M1SCOMDS

CWDM central wavelength λC nm

1471/1491

1511/1531

1551/1571

1591/1611

1310/1451

CWDM bandwidth @0.5dB nm λC ±6.5

Insertion

Loss

Line- CWDM dB ≤4.5

Line-1310nm/ 1451nm dB ≤2

Isolation

CWDM channel to

adjacent channel dB

DEMUX: ≥30

MUX: NA

CWDM channel to

non-adjacent channel dB

DEMUX: ≥45

MUX: NA

Return loss dB ≥40



Table 5-30 Performance Parameters of M1SCOMD4-DX61S/ M1SCOMD4-5US/

M1SCOMD4-9US/ M1SCOMD5-14US Boards

Parameter Unit

M1SCOM

D4-DX61

S

M1SCOM

D4-5US

M1SCOM

D4-9US

M1SCO

MD5-14U

S

CWDM central

C nm

1471

1491

1511

1531

1311

1551

1571

1591

1611

1311

1271

1291

1331

1351

1311

1371

1391

1411

1431

1451

1311

CWDM

[email protected] nm C ±6.5 C ±6.5 C ±6.5 C ±6.5

Insertion

loss

(with

connect

or)

Line-

CWDM dB ≤3.0 ≤3.0 ≤3.0 ≤3.0

Line- UPG dB

≤3 (red

ribbon)

≤2.5 (blue

ribbon)

≤3.0 ≤3.0 ≤3.0

Line-1311

nm dB ≤2.0 ≤2.0 ≤2.0 ≤2.0

Isolation

CWDM

channel to

adjacent

channel

dB

DEMUX:

≥30

MUX: NA

DEMUX:

≥30

MUX: NA

DEMUX:

≥30

MUX: NA

DEMUX:

≥30

MUX: NA

CWDM

channel to

non-adjac

ent

channel

dB

DEMUX:

≥45

MUX: NA

DEMUX:

≥45

MUX: NA

DEMUX:

≥45

MUX: NA

DEMUX:

≥45

MUX: NA

Upgrade

interface

to CWDM

DEMUX

signal

dB

DEMUX:

≥12

MUX: NA

DEMUX:

≥12

MUX: NA

DEMUX:

≥12

MUX: NA

DEMUX:

≥12

MUX: NA

Return loss dB ≥45 ≥45 ≥45 ≥45



Table 5-31 Performance Parameters of M1SCOMD4-5U/ M1SCOMD4-9U/

M1SCOMD5-14U Boards

Parameter Uni

t

M1SCOMD4

-5U

M1SCOMD

4-9U

M1SCOMD5-1

4U

CWDM

C nm

1551

1571

1591

1611

1271

1291

1331

1351

1371

1391

1411

1431

1451

CWDM

[email protected] nm C ±6.5 C ±6.5 C ±6.5

Insertion

loss (with

connector)

Line- CWDM dB ≤2.5 ≤2.5 ≤3.0

Line- UPG dB ≤2.5 ≤2.5 ≤2.5

Isolation

CWDM

channel to

adjacent

channel

dB DEMUX: ≥30

MUX: NA

DEMUX:

≥30

MUX: NA

DEMUX: ≥30

MUX: NA

CWDM

channel to

non-adjacent

channel

dB DEMUX: ≥45

MUX: NA

DEMUX:

≥45

MUX: NA

DEMUX: ≥45

MUX: NA

Isolation

Upgrade

interface to

CWDM

DEMUX

signal

dB DEMUX: ≥12

MUX: NA

DEMUX:

≥12

MUX: NA

DEMUX: ≥12

MUX: NA

Return loss dB ≥45 ≥45 ≥45

5.5.4.4 M1SOGMD Specifications

The specifications of M1SOGMD board at C-band are listed in Table 5-32.

Table 5-32 Specifications of M1SOGMD Board (C-band)


Wavelength range nm 1528 to 1562




Insertion loss

IN->RRO dB <2.5

IN->RBO dB <2.5

IN->BRO dB <2.5

IN->BBO dB <2.5

RRI->OUT dB <2.5

RBI->OUT dB <2.5

BRI->OUT dB <2.5

BBI->OUT dB <2.5

Isolation dB >12

Optical reflectance coefficient dB >40

PDL dB <0.4

PMD ps <0.15

Maximum allowed optical power mW <500

5.5.5 Fixed Add/Drop Multiplexer Unit Specifications

5.5.5.1 M1SOAD4 Specifications

The specifications of M1SOAD4 Board at C-band are shown in Table 5-33.

Table 5-33 Specifications of M1SOAD4 Board (C-band)


Central frequency range THz 192.1 to 196.0

Wavelength range nm 1529.55 to 1560.61

-1 dB bandwidth (Drop) nm >0.2

-20 dB bandwidth (Drop) nm <1.20


Isolation

IN-D1/D2/D3/D4@ adjacent channels dB >25

IN-D1/D2/D3/D4@ nonadjacent

channels dB >35

IN-MID1@ drop channel dB >14




IN-OUT@ drop channel dB >28

Optical return loss dB >40

Insertion

loss

Drop wavelength (IN-D1/D2/D3/D4) dB <4

Add wavelength (A1/A2/A3/A4-OUT) dB <4

Pass-through wavelength (IN-OUT) dB <5

Polarization dependent loss (PDL) dB <0.2

Polarization mode dispersion (PMD) ps <0.1


5.5.5.2 M1SOAD4(S, II) Specifications

The specifications of M1SOAD4(S, II) Board at C-band are shown in Table 5-34.

Table 5-34 Specifications of M1SOAD4(S, II) Board (C-band)




Wavelength Range for SIN nm 1480 to 1520




Isolation

IN-D1/D2/D3/D4@ adjacent channels dB >25

IN-D1/D2/D3/D4@ nonadjacent

channels dB >35

IN-MID1@ drop channel dB >14



Insertion

loss

Drop wavelength (IN-D1/D2/D3/D4) dB <2.5

Add wavelength (A1/A2/A3/A4-OUT) dB <2.8

Pass-through wavelength (IN-MID1) dB <1.9

Pass-through wavelength (MID2-OUT) dB <2.3




SIN wavelength(SIN-OUT) dB <1.5




5.5.5.3 M1SOAD2D Specifications

The specifications of M1SOAD2D Board are shown in Table 5-35.

Table 5-35 Specifications of M1SOAD2D Board (C-band)







Isolation

IN-D1/D2 @ adjacent channels dB >25

IN-D1/D2 @ nonadjacent channels dB >35



Insertion

loss

Drop wavelength (IN-D1/D2) dB <2.5

Add wavelength (A1/A2 -OUT) dB <3

Pass-through wavelength (IN-OUT) dB <3

SIN wavelength(SIN-OUT) dB <1.5




5.5.5.4 M1SCOAD1 Specifications

The specifications of M1SCOAD1 are shown in Table 5-36.



Table 5-36 Specifications of M1SCOAD1 Board

Item Unit

Specification

M1SCOAD1-US M1SCOAD1-

U

Number of channels - 1+1311nm 1

Passband @ 0.5dB nm λC ±6.5 λC ±6.5

Insertion

loss

IN – D1 dB ≤2.3 ≤1.8

A1 – OUT dB ≤2.1 ≤1.5

IN – OUT dB ≤2.7 ≤2.0

IN – SOUT dB ≤1.9 -

SIN – OUT dB ≤1.5 -

Isolation

IN – D1@ adjacent

channels dB ≥30 ≥30

IN – OUT@ drop

channel dB ≥28 ≥28

Polarization dependent loss (PDL) dB ≤0.2 ≤0.2

Optical return loss dB ≥40 ≥40

5.5.5.5 M1SCOAD2 Specifications

The specifications of M1SCOAD2 are shown in Table 5-37.

Table 5-37 Specifications of M1SCOAD2 Board


M1SCOAD2-S

Number of channels - 2+1311nm

Passband @ 0.5dB nm λC ±6.5

Insertion

loss

IN – D1/D2 dB ≤2.8

A1/A2 – OUT dB ≤2.8

IN – OUT dB ≤3.3

IN – SOUT dB ≤1.9

SIN – OUT dB ≤1.5

Isolation IN – D1/D2@ adjacent channels dB ≥30




M1SCOAD2-S

IN – OUT@ drop channel dB ≥28

Polarization dependent loss (PDL) dB ≤0.2

Optical return loss dB ≥40

5.5.6 Optical Amplification Subsystem Specifications

5.5.6.1 M3SEOA Specifications

The specifications of 40-channel M3SEOBA Board at C band are shown in Table 5-38.

Table 5-38 Specifications of 40-channel M3SEOBA (C-band)

Item Unit

40-Channel M3SEOBA

M3SEOBA

17/17

M3SEOBA

22/20

Operating wavelength range nm 1529~1561 1529~1561

Total input power range dBm -32 to 0 -32 to -2

Total output power range dBm 1 to 17 4 to 20

Maximum total output power dBm 17 20

The range of VOA dB [0dB，20dB] [0dB，20dB]

The step of VOA dB 0.1dB 0.1dB

Variable Optical attenuator dB 2.5dB

1.5dB(NO PD)

2.5dB

1.5dB(NO PD)

Noise figure dB <6 <6

Polarization dependent loss dB <0.5 <0.5

Pump leakage at input dBm <-30 <-30

Pump leakage at output dBm <-30 <-30

Input return loss dB >40 >40

Output return loss dB >40 >40

Channel gain dB 17 22

Allowed maximum input reflectance dB >30 >30



Item Unit

40-Channel M3SEOBA

M3SEOBA

17/17

M3SEOBA

22/20

Allowed maximum output reflectance dB >30 >30

Gain flatness dB ±1 ±1

The specifications of 40-channel M3SEOPA Board at C band are shown in Table 5-39.

Table 5-39 Specifications of 40-channel M3SEOPA (C-band)

Item Unit

40-Channel M3SEOPA

M3SEOPA17/17 M3SEOPA22

/17

M3SEOPA27/

17

Operating

wavelength range nm 1529~1561 1529~1561 1529~1561

Total input power

range dBm -35 to 0 -35 to -5 -35 to -10

Total output

power range dBm -2 to 17 -2 to 17 -2 to 17

Maximum total

output power dBm 17 17 17

The range of VOA dB [0dB，20dB] [0dB，20dB] [0dB，20dB]

The step of VOA dB 0.1dB 0.1dB 0.1dB

Variable Optical

attenuator

dB 2.5dB

1.5dB(NO PD)

2.5dB

1.5dB(NO PD)

2.5dB

1.5dB(NO PD)

Noise figure dB <5.5 <5.5 <5.5

Polarization

dependent loss dB <0.5 <0.5 <0.5

Pump leakage at

input dBm <-30 <-30 <-30

Pump leakage at

output dBm <-30 <-30 <-30

Input return loss dB >40 >40 >40

Output return loss dB >40 >40 >40

Channel gain dB 17 22 27



Item Unit

40-Channel M3SEOPA

M3SEOPA17/17 M3SEOPA22

/17

M3SEOPA27/

17

Allowed maximum

input reflectance dB >30 >30 >30

Allowed maximum

output reflectance dB >30 >30 >30

Gain flatness dB ±1 ±1 ±1

Gain response

time while

adding/reducing

channels (stable

status)

ms <10 <10 <10

Polarization mode

dispersion ps <0.5 <0.5 <0.5

5.5.6.2 M1SSDM Specifications

The specifications of M1SSDMT Board are shown in Table 5-40.

Table 5-40 Specifications of M1SSDMT Board


Operating

Wavelength

range

nm C Band 1528~1568

nm C Band Supervision

Channel 1500~1520

Insert Loss dB IN->OUT <1.5

dB SIN->OUT <1.5

Isolation dB IN->OUT(@λSIN) >12

dB SIN→OUT(@λIN) >20

Return Loss dB >40

Polarization

dependent loss dB <0.2

input power

range mW <500



The specifications of M1SSDMR Board are shown in Table 5-41.

Table 5-41 Specifications of M1SSDMR Board


Operating

Wavelength

range

nm C Band 1528~1568

nm C Band Supervision

Channel 1500~1520

Insert Loss dB IN->OUT <1.5

dB SIN->OUT <1.5

Isolation dB IN->OUT(@λSOUT) >12

dB IN->SOUT(@λOUT) >40

Return Loss dB >40

Polarization

dependent loss dB <0.2

input power

range mW <500

5.5.7 Protection Subsystem Specifications

5.5.7.1 M1SOP Specifications

The specifications of M1SOP Board are shown in Table 5-42.

Table 5-42 Specifications of M1SOP Board


Operating wavelength range nm 1260 ~ 1620

1260 ~ 1510 1510 ~ 1620

Insertion loss

T1_I to T1_O1

dB

<5 <4.5

T2_I to T2_O1 <5 <4.5

T1_I to T1_O2 <5 <4.5

T2_I to T2_O2 <5 <4.5

R1_I1 to R1_O <2.5 <2

R2_I1 to R2_O <2.5 <2




R1_I2 to R1_O <2.5 <2

R2_I2 to R2_O <2.5 <2

Return loss dB >40

Polarization dependent loss dB <0.2

Input optical power mW >200

Switch time ms <10

5.5.8 Dispersion Compensation Module Specifications

Dispersion compensation fiber is located before M3SEOBA and M3SEOPA. When

M3SEOPA+M3SEOBA mode is adopted, dispersion compensation module is between

them.

Broadband dispersion compensation fiber is used to compensate optical channel

dispersion, which is a negative value just like slope. Slope compensation rate is up to

90%~110%.

Table 5-43 Specifications of DCM

Item Maximum insertion loss

DGD(ps) Unit Parameter

Maximum insertion

loss & DGD G.652

fiber

20km dB 2.5 <0.6

40km dB 4 <0.8

60km dB 6 <1.0

80km dB 7 <1.1

100km dB 8 <1.2

120km dB 10 <1.2

Maximum insertion

loss & DGD G.655

fiber

20km dB 2 <0.45

40km dB 4 <0.60

60km dB 5 <0.75

80km dB 6 <0.80

100km dB 7 <0.90

120km dB 8 <1.0



Appendix A: Abbreviation Abbreviation Full English Description

AFEC Advance Forward Error Correction

APR Automatic Power Reduction

APSD Automatic Power Shutdown

ASE Amplified Spontaneous Emission

BER Bit Error Ratio

DCM Dispersion Compensation Module

DWDM Dense Wavelength Division Multiplexing

ECC Embedded Control Channel

EDFA Erbium Doped Fiber Amplifier

EX Extinction Ratio

FEC Forward Error Correction

GbE Gigabits Ethernet

NCP Net Control Processor

NE Network Element

NRZ Non Return to Zero

OA Optical Amplifier

OADM Optical Add/Drop Multiplexer

OBA Optical Booster Amplifier

OCh Optical Channel

OLA Optical Line Amplifier

OP Optical Protection Unit

OPA Optical Preamplifier Amplifier

OSC Optical Supervisory Channel

OTM Optical Terminal

OTN Optical Transport Network

OTU Optical Transponder Unit

PMD Polarization Mode Dispersion

SDH Synchronous Digital Hierarchy

SDM Supervision add/drop multiplexing Board

WDM Wavelength Division Multiplexing



Appendix B: Followed Standards and

Recommendations

The ZXMP M721 is designed with reference to the following recommendations and

standards:

ITU-T G.652 Characteristics of a single-mode optical fiber and optical cable

ITU-T G.653 Characteristics of Dispersion-Shifted Single-Mode Fiber

ITU-T G.655 Characteristics of Non-Zero Dispersion-Shifted Single-Mode Fibers

ITU-T G.661 Definition and test methods for the relevant generic parameters of

optical amplifier devices and subsystems

ITU-T G.662 Generic characteristics of optical fiber amplifier devices and

subsystems

ITU-T G.663 Application related aspects of optical amplifier devices and

subsystems

ITU-T G.664 Optical safety procedures and requirements for optical transport

systems

ITU-T G.671 Transmission characteristics of passive optical components

ITU-T G.681 Functional characteristics of interoffice and long-haul line systems

using optical amplifiers, including optical multiplexing

ITU-T G.691 Optical interfaces for single channel STM-64, STM-256 systems and

other SDH systems with optical amplifiers

ITU-T G.692 Optical interface for multi-channel systems with optical amplifiers

ITUT-T G.694.1 Spectral grids for WDM application: DWDM frequency grid

ITU-T G.694.2 Spectral Grids for WDM Applications: CWDM Wavelength Grid

ITU-T G.709-2003 Optical Transport Network (OTN) Interfaces



ITU-T G.825 (2002-06) The control of jitter and wander within digital networks which are

based on the synchronous digital hierarchy (SDH) ITU-T G.957 (1999-06) Optical

interfaces for equipment and systems relating to the synchronous digital hierarchy

ITU-T G.828 Optical input jitter and wander control based on the synchronous

digital hierarchy (SDH)

ITU-T G.826 Error performance parameters and indexes for international, constant

bit rate digital paths at or above the primary group

ITU-T G.841 Types and characteristics of SDH network protection architectures

ITU-T G.957 Optical interfaces for SDH equipment and systems

ITU-T G.959.1 Optical transport networks physical layer interfaces

ITU-T G.707 Network Node Interface for the SDH equipment

ITU-T G.975 Forward Error Correction for Submarine Systems

IEEE 802.3-2002 Carrier wave interception multi-address access method with collision

test and physical layer characteristics

Technical requirements of optical wavelength division multiplexing (WDM) system- 32 *

2.5Gbit/s part Ministry of Information Industry, PRC

Technical requirements of optical wavelength division multiplexing (WDM) system-160 *

10Gb/s and 80 * 10Gb/s (exposure draft) MII December 2001

ETSI EN 300 119-3 Environmental Engineering (EE) European telecommunication

standard for equipment practice; Part 3: Engineering requirements for miscellaneous

racks and cabinets

ETSI EN 300 119-4 Environmental Engineering (EE); European telecommunication

standard for equipment practice; Part 4: Engineering requirements for sub-racks in

miscellaneous racks and cabinets

EMC, Safety and Environmental Standard

For EMC Standard:



1. EMI Standard---CISPR22 (EN55022)

2. EN50082-1: 1992 or EN55024: 1998 (Mandatory by 1 July 2001) (EN61000-4-2, 3,

4, 5, 6 series)

For TNE (Telecommunication network equipment)

1. ETSI EN 300 386 V1.2.1 (2000-03)

Electromagnetic compatibility and Radio spectrum Matters (ERM); Telecommunication

network equipment; Electromagnetic Compatibility (EMC) requirements

Safety Standard---IEC950 (EN60950)

Environmental standard--ETS 300 019 (T/TR02-12)

YD/T 1060-2000 Technical Requirements for Optical Wavelength Division Multiplexing

Systems (WDM)—32*2.5 Gbit/s Part, by Ministry of Information Industry of the People’s

Republic of China

YD/T 1143-2001 Technical Requirements for Optical Wavelength Division Multiplexing

Systems (WDM)—16*2.5 Gbit/s Part, by Ministry of Information Industry of the People’s

Republic of China

Technical Requirements for Metropolitan Optical Wavelength Division Multiplexing

Systems (WDM) Ring Network, by the Ministry of Information Industry of the People’s

Republic of China

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