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ZXMP M721 Product Description
ZTE Confidential Proprietary 1
ZXMP M721 Product Description
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.
ZXMP M721 Product Description
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 3
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
ZXMP M721 Product Description
4 ZTE Confidential Proprietary
Appendix A: Abbreviation.................................................................................................. 82
Appendix B: Followed Standards and Recommendations .............................................. 83
ZXMP M721 Product Description
ZTE Confidential Proprietary 5
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
ZXMP M721 Product Description
6 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 7
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
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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
ZXMP M721 Product Description
ZTE Confidential Proprietary 9
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)
ZXMP M721 Product Description
10 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 11
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
ZXMP M721 Product Description
12 ZTE Confidential Proprietary
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.
ZXMP M721 Product Description
ZTE Confidential Proprietary 13
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.
ZXMP M721 Product Description
14 ZTE Confidential Proprietary
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.
ZXMP M721 Product Description
ZTE Confidential Proprietary 15
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.
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16 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 17
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.
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18 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 19
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
ZXMP M721 Product Description
20 ZTE Confidential Proprietary
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.
ZXMP M721 Product Description
ZTE Confidential Proprietary 21
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
ZXMP M721 Product Description
22 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 23
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
ZXMP M721 Product Description
24 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 25
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.
ZXMP M721 Product Description
26 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 27
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
ZXMP M721 Product Description
28 ZTE Confidential Proprietary
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.
ZXMP M721 Product Description
ZTE Confidential Proprietary 29
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
ZXMP M721 Product Description
30 ZTE Confidential Proprietary
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
Access the service of STM-64,
OTU2/OTU2e/OTU1f, 10 GE, 8G
FC, 10G FC, Infiniband 10G etc.
M1TS2CP
Transponder of one
10G service with
OCH 1+1 protection
Access the service of STM-64,
OTU2/OTU2e/OTU1f, 10 GE, 8G
FC, 10G FC, Infiniband 10G etc.
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
Access four channels of any rate
service ranging from 100Mbps to
2.67Gbps.
Support 1588V2 and Sync E.
M1MQA2
Muxponder of 4
channels ANY
Access to OTU2
Board
Access four channels of any rate
service ranging from 1.0625Gbps to
4.25Gbps.
M2MQA2
Muxponder of 4
channels ANY
Access to OTU2
Board
Access 4 channels of any rate
service ranging from 100Mbps to
9.83Gbps.
Support 1588V2 and Sync E.
M1MJA Muxponder 6 Any rate service from 100Mbps to
ZXMP M721 Product Description
ZTE Confidential Proprietary 31
Board Name Description Remarks
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.
Support 1588V2 and Sync E.
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
ZXMP M721 Product Description
32 ZTE Confidential Proprietary
Board Name Description Remarks
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
multiplex Board of 4
Wavelength, with
OSC channel
Implement add/drop for 4–channel,
and pass-through wavelengths. With
OSC channel
M1SCOAD2-S
Optical add/drop
multiplex Board of 2
Wavelengths with
supervision port
Implement add/drop for 2–channel
and pass-through wavelengths with
supervision port
M1SCOAD1-US
Optical add/drop
multiplex Board of 1
Wavelengths with
upgrade and
supervision port
Implement add/drop for 1–channel
and pass-through wavelengths with
supervision port
M1SCOAD1-U
Optical add/drop
multiplex Board of 1
Wavelengths with
upgrade port
Implement add/drop for 1–channel
and pass-through wavelengths with
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.
ZXMP M721 Product Description
ZTE Confidential Proprietary 33
Board Name Description Remarks
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.
ZXMP M721 Product Description
34 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 35
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.
ZXMP M721 Product Description
36 ZTE Confidential Proprietary
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
...
ZXMP M721 Product Description
ZTE Confidential Proprietary 37
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
ZXMP M721 Product Description
38 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 39
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
ZXMP M721 Product Description
40 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 41
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
ZXMP M721 Product Description
42 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 43
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.
ZXMP M721 Product Description
44 ZTE Confidential Proprietary
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
ZXMP M721 Product Description
ZTE Confidential Proprietary 45
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
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46 ZTE Confidential Proprietary
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.
ZXMP M721 Product Description
ZTE Confidential Proprietary 47
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
Item Unit Specification
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48 ZTE Confidential Proprietary
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
Item Unit Specification
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)
ZXMP M721 Product Description
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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
Item Unit Specification
Parameters of input port (S point)
-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
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50 ZTE Confidential Proprietary
Item Unit Specification
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
Parameters of output port (R point)
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
Item Unit Specification
Parameters of input port (S point)
-12) dBm -14 (I64.1)
-16 (S64.2b)
ZXMP M721 Product Description
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Item Unit Specification
-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)
Minimum side mode compression ratio
(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
Minimum extinction ratio dB 8.2
Dispersion tolerance ps/nm 1400
Eye diagram - ITU-T G.691
Parameters of input port (Rn point)
-12) dBm -21(APD)
Receiver reflection dB >27
Overload power dBm -9
Wavelength area of input signals nm 1460~1620
Parameters of output port (R point)
Mean launched power dBm -6 ~ -1 (I64.1)
-1 ~ 2 (S64.2b)
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Item Unit Specification
-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
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)
ZXMP M721 Product Description
ZTE Confidential Proprietary 53
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
Item Unit Specification
Parameters of input port (S point)
Receiving sensitivity dBm
-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)
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54 ZTE Confidential Proprietary
Item Unit Specification
-3 (1000BASE-LX)
-3 (1000BASE-LH1)
-3 (1000BASE-ZX)
-3 (100-SM-LL-I)
0 (200-SM-LL-I)
Parameters of output port (Sn point)
Light source type - -
Maximum bandwidth @ -20 dB nm 0.5
Minimum side mode compression ratio
(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
Central wavelength offset nm ≤±6.5
Mean launched power dBm
0~5(It may be less than 0
dBm in short distance
transmission.)
Minimum extinction ratio dB 8.2
Eye diagram - Compliance with ITU-T
G.957
Parameters of input port (Rn point)
-12) dBm -21 (PIN)
-28 (APD)
Receiver reflection dB >27
Overload power dBm 0 (PIN)
-9 (APD)
Wavelength area of input signals nm 1265 to 1617
Parameters of output port (R point)
Mean launched power dBm
-9.5 to -3 (1000BASE-SX)
-11 to -3 (1000BASE-LX)
-4 to 0 (1000BASE-LH1)
-2 to +3 (1000BASE-ZX)
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Item Unit Specification
-11 to -3 (100-SM-LL-I)
-12 to -3 (200-SM-LL-I)
Table 5-17 Specifications of M1MQA1 Board for DWDM
Item Unit Specification
Parameters of input port (S point)
Receiving sensitivity dBm
-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)
Parameters of output port (Sn point)
Light source type
Maximum bandwidth @ -20 dB nm 0.5
Minimum side mode compression ratio
(SMCR) dB 35
Nominal central frequency THz 192.1 to 196.0
(spacing: 100 GHz)
Central frequency offset GHz ≤±12.5 (spacing: 100 GHz)
Mean launched power dBm 0~5
Minimum extinction ratio dB 8.2
Dispersion tolerance ps/nm 3600
Eye diagram - Compliance with ITU-T
G.957
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56 ZTE Confidential Proprietary
Item Unit Specification
Parameters of input port (Rn point)
-12) dBm -21 (PIN)
-28 (APD)
Receiver reflection dB >27
Overload power dBm 0 (PIN)
-9 (APD)
Wavelength area of input signals nm 1280 to 1565
Parameters of output port (R point)
Mean launched power dBm
-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.
5.5.3.3 M2MQA1 Specifications
M2MQA1 can be used in DWDM or CWDM system. The specifications of M2MQA1
Board please refer to M1MQA1 specifications.
5.5.3.4 M1MQA2 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
Item Unit Specification
Parameters of input port (S point)
ZXMP M721 Product Description
ZTE Confidential Proprietary 57
Item Unit Specification
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
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/n
m -300~+800
Eye diagram - Compliance with ITU-T
G.691
Parameters of input port (Rn point)
Receiving sensitivity dBm -14 (PIN)
-21 (APD)
Receiver reflection dB >27
Overload power dBm 0 (PIN)
-9 (APD)
Wavelength of input signals nm 1280 to 1565
Parameters of output port (R point)
Mean launched power
1G FC
dBm
-4.5
2G FC -4.5
4G FC -4.5
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58 ZTE Confidential Proprietary
Item Unit Specification
GE -11~0
Table 5-19 Specifications of M1MQA2 Board for CWDM 10G
Item Unit Specification
Parameters of input port (S point)
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
Parameters of output port (Sn point)
Minimum side mode compression ratio
(SMCR) dB 30
Nominal central wavelength nm 1471/1491/1511/1531/1551/
1571/1591/1611
Central wavelength offset nm ≤±6.5
Mean launched power dBm +1~+5
Minimum extinction ratio dB 8.2
Dispersion tolerance ps/n
m 1400
Eye diagram - ITU-T G.691
Parameters of input port (Rn point)
-12) dBm -21(APD)
Receiver reflection dB >27
Overload power dBm -9
Wavelength area of input signals nm 1460~1620
Parameters of output port (R point)
Mean launched power 1G FC dBm -4.5
ZXMP M721 Product Description
ZTE Confidential Proprietary 59
Item Unit Specification
2G FC -4.5
4G FC -4.5
GE -11~0
5.5.3.5 M2MQA2 Specifications
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
Item Unit Specification
Parameters of input port (S point)
Receiving sensitivity dBm
-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)
Parameters of output port (R point)
Mean launched power dBm
-9.5 to -3 (1000BASE-SX)
-11 to -3 (1000BASE-LX)
-4 to 0 (1000BASE-LH1)
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60 ZTE Confidential Proprietary
Item Unit Specification
-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
Item Unit Specification
Parameters of input port (S point)
Receiving sensitivity GE dBm -19
Overload power GE dBm -3
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/n
m -300~+800
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Item Unit Specification
Eye diagram - Compliance with ITU-T
G.691
Parameters of input port (Rn point)
Receiving sensitivity dBm -14 (PIN)
-21 (APD)
Receiver reflection dB >27
Overload power dBm 0 (PIN)
-9 (APD)
Wavelength of input signals nm 1280 to 1565
Parameters of output port (R point)
Mean launched power GE dBm -11~0
Table 5-22 Specifications of M1MOM2B Board for CWDM 10G
Item Unit Specification
Parameters of input port (S point)
Receiving sensitivity GE dBm -19
Overload power GE dBm -3
Parameters of output port (Sn point)
Minimum side mode compression ratio
(SMCR) dB 30
Nominal central wavelength nm 1471/1491/1511/1531/1551/
1571/1591/1611
Central wavelength offset nm ≤±6.5
Mean launched power dBm +1~+5
Minimum extinction ratio dB 8.2
Dispersion tolerance ps/n
m 1400
Eye diagram - ITU-T G.691
Parameters of input port (Rn point)
-12) dBm -21(APD)
Receiver reflection dB >27
Overload power dBm -9
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Item Unit Specification
Wavelength area of input signals nm 1460~1620
Parameters of output port (R point)
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
Item Unit Specification
Parameters of input port (S point)
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)
Parameters of output port (Sn point)
Light source type - -
Maximum bandwidth @ -20 dB nm 0.5
Minimum side mode compression ratio dB 35
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Item Unit Specification
(SMCR)
Nominal central wavelength nm
1271/1291/1311/1331/1351/
1371/1391/1411/1431/1451/
1471/1491/1511/1531/1551/
1571/1591/1611
Central wavelength offset nm ≤±6.5
Mean launched power dBm
0~5(It may be less than 0
dBm in short distance
transmission.)
Minimum extinction ratio dB 8.2
Eye diagram - Compliance with ITU-T
G.957
Parameters of input port (Rn point)
-12) dBm -21 (PIN)
-28 (APD)
Receiver reflection dB >27
Overload power dBm 0 (PIN)
-9 (APD)
Wavelength area of input signals nm 1265 to 1617
Parameters of output port (R point)
Mean launched power dBm
-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
Item Unit Specification
Parameters of input port (S point)
Receiving sensitivity dBm -23 (I4)
-18 (S4)
ZXMP M721 Product Description
64 ZTE Confidential Proprietary
Item Unit Specification
-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)
Parameters of output port (Sn point)
Light source type - -
Maximum bandwidth @ -20 dB nm 0.5
Minimum side mode compression ratio
(SMCR) dB 35
Nominal central frequency THz 192.1 to 196.0
(spacing: 100 GHz)
Central frequency offset GHz ≤±12.5 (spacing: 100 GHz)
Mean launched power dBm 0~5
Minimum extinction ratio dB 8.2
Dispersion tolerance ps/nm 3600
Eye diagram - Compliance with ITU-T
G.957
Parameters of input port (Rn point)
-12) dBm -21 (PIN)
-28 (APD)
Receiver reflection dB >27
Overload power dBm 0 (PIN)
-9 (APD)
Wavelength area of input signals nm 1280 to 1565
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Item Unit Specification
Parameters of output port (R point)
Mean launched power dBm
-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
Item Unit Specification
Parameters of optical receive port at client side (S point)
Receiving sensitivity dBm
-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)
Wavelength of input signals nm 1280 to 1565
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
Central wavelength offset nm ≤±6.5
Mean launched power dBm +1~+5
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Item Unit Specification
Minimum extinction ratio dB 8.2
Dispersion tolerance ps/nm 1400
Eye diagram - ITU-T G.691
Parameters of optical receive port at line side (Rn point)
Receiving sensitivity dBm -14 (PIN)
-21 (APD)
Receiver reflection dB >27
Overload power dBm 0 (PIN)
-9 (APD)
Wavelength of input signals nm 1460 to 1620
Parameters of optical transmit port at client side (R point)
Mean launched power dBm
-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
Item Unit Specification
Parameters of optical receive port at client side (S point)
Receiving sensitivity dBm
-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)
ZXMP M721 Product Description
ZTE Confidential Proprietary 67
Item Unit Specification
Minimum side mode compression ratio (SMCR) dB 30
Nominal central frequency THz 192.1 to 196.0
Central frequency offset GHz ≤±12.5 (spacing: 100
GHz)
Mean launched power dBm -4 to +1
Minimum extinction ratio dB 8.2
Dispersion tolerance ps/nm 800 (G.652)
Eye diagram - Compliance with ITU-T
G.691
Parameters of optical receive port at line side (Rn point)
Receiving sensitivity dBm -14 (PIN)
-21 (APD)
Receiver reflection dB >27
Overload power dBm 0 (PIN)
-9 (APD)
Wavelength of input signals nm 1280 to 1565
Parameters of optical transmit port at client side (R point)
Mean launched power dBm
-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.
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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
Channel spacing GHz 100
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
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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
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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
bandwidth@0.5dB 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
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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
bandwidth@0.5dB 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)
Item Unit Specification
Wavelength range nm 1528 to 1562
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Item Unit Specification
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)
Item Unit Specification
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
Channel spacing GHz 100
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
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Item Unit Specification
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
Maximum allowed optical power mW <500
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)
Item Unit Specification
Central frequency range THz 192.1 to 196.0
Wavelength range nm 1529.55 to 1560.61
Wavelength Range for SIN nm 1480 to 1520
-1 dB bandwidth (Drop) nm >0.2
-20 dB bandwidth (Drop) nm <1.20
Channel spacing GHz 100
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 <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
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Item Unit Specification
SIN wavelength(SIN-OUT) dB <1.5
Polarization dependent loss (PDL) dB <0.2
Polarization mode dispersion (PMD) ps <0.1
Maximum allowed optical power mW <500
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)
Item Unit Specification
Central frequency range THz 192.1 to 192.8
Wavelength range nm 1529.55 to 1554.94
-1 dB bandwidth (Drop) nm >0.2
-20 dB bandwidth (Drop) nm <1.20
Channel spacing GHz 100
Isolation
IN-D1/D2 @ adjacent channels dB >25
IN-D1/D2 @ nonadjacent channels dB >35
IN-OUT@ drop channel dB >28
Optical return loss dB >40
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
Polarization dependent loss (PDL) dB <0.2
Polarization mode dispersion (PMD) ps <0.1
Maximum allowed optical power mW <500
5.5.5.4 M1SCOAD1 Specifications
The specifications of M1SCOAD1 are shown in Table 5-36.
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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
Item Unit Specification
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
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Item Unit Specification
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
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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
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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
Item Unit Specification
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
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The specifications of M1SSDMR Board are shown in Table 5-41.
Table 5-41 Specifications of M1SSDMR Board
Item Unit Specification
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
Item Unit Specification
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
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Item Unit Specification
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
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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
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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
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84 ZTE Confidential Proprietary
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:
ZXMP M721 Product Description
ZTE Confidential Proprietary 85
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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