Zte zxmsg 5200 User manual

ZXMSG 5200
MultiplexServiceGateway
TechnicalManual
Version2.0
ZTE CORPORATION
ZTE Plaza, Keji Road South,
Hi-Tech Industrial Par ,
Nanshan District, Shenzhen,
P. R. China
518057
Tel: [phone] 800-9830-9830
Fax: [phone]
URL: http://support.zte.com.cn
E-mail: [email protected].cn

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Revision History
Date Revision No. Serial No. Description
2005/07/11 R1.0 sjzl20051283

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Document
Name ZXMSG 5200 (V2.0) Multiplex Service Gateway Technical Manual
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Version V2.0 Document Revision Number R1.0
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Contents
About this Manual....................................................................................ix
Purpose of this Manual........................................................................................ ix
Typographical Conventions...................................................................................x
Mouse Operation Conventions ............................................................................. xi
Safety Signs..................................................................................................... xii
How to Get in Touch..........................................................................................xiii
Customer Support ..............................................................................................................xiii
Documentation Support ......................................................................................................xiii
Chapter 1..................................................................................15
Overview.................................................................................................15
Chapter 2..................................................................................19
System Architecture ...............................................................................19
System Overview..............................................................................................19
System Background............................................................................................................19
Applicable Standards ..........................................................................................................20
Main Functions ...................................................................................................................20
System Working Principles .................................................................................20
Hardware Structure...........................................................................................22
Software Architecture........................................................................................23
Chapter 3..................................................................................25
echnical Specifications..........................................................................25
Physical Specifications .......................................................................................25
Shelf Dimensions................................................................................................................25
Rack Parameters ................................................................................................................26
Environment Conditions.....................................................................................27
System Performance Indices ..............................................................................27
Capacity ............................................................................................................................27

Processing Capabilities ........................................................................................................27
Reliability...........................................................................................................................27
IP Telephone Voice Performance ......................................................................... 28
IP Codes ............................................................................................................................28
Coding Rate .......................................................................................................................28
Objective Evaluation on Voice..............................................................................................28
Subjective Evaluation on Voice ............................................................................................28
Delay Indices .....................................................................................................................28
Service Functionalities .......................................................................................29
Service Provision Modes......................................................................................................29
Available Services...............................................................................................................29
Chapter 4..................................................................................31
Hardware Structure................................................................................31
Overview.........................................................................................................31
Structure Layout Diagram.................................................................................. 32
Board Overview................................................................................................ 33
Integrated Control & Switch Board (ICS ..............................................................................33
Packet Processing and Resource Board (MPR .......................................................................35
Analog Line Card (ALC .......................................................................................................37
ADSL Subscriber Card (ADLG .............................................................................................38
Test Subscriber Line Card (TSLC .........................................................................................40
POWER H...........................................................................................................................41
Chapter 5..................................................................................45
Software Structure .................................................................................45
Overview.........................................................................................................45
Software Structure............................................................................................ 45
O&M Provision....................................................................................................................46
Database System ...............................................................................................................47
Operation Support System..................................................................................................49
Bearer System ...................................................................................................................52
Call Connection System.......................................................................................................52
H.248 System....................................................................................................................54
Chapter 6..................................................................................57
Interface and Communication................................................................57
Interfaces ........................................................................................................57
Subscriber Side Interfaces...................................................................................................57

Network Side Interfaces......................................................................................................57
Communications (H.248 Protocol Description .......................................................58
Logic Connection Model.......................................................................................................58
Commands ........................................................................................................................60
Parameters ........................................................................................................................64
Message Format.................................................................................................................65
Chapter 7..................................................................................67
Networking Modes..................................................................................67
Networking Modes ............................................................................................67
Networking in NGN .............................................................................................................67
Networking for MSAN Upgrading to ZXMSG 5200..................................................................68
Application Examples.........................................................................................69
Residential Area, Curb or Building in MAN.............................................................................69
Use for the Reconstruction of Local Urban Call Network .........................................................70
Appendix A...............................................................................71
Abbreviations..........................................................................................71
Index...........................................................................................77
Figures.........................................................................................79
ables ..........................................................................................81

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Confidential and Proprietary Information of ZTE CORPORATION ix
About this Technical Manual
The ZXMSG 5200 Multiplex Service Gateway is designed for
interconnecting analog subscribers and SOFTSWITCH packet networks.
The ZXMSG 5200 follows standard SOFTSWITCH adaptation layer protocol
and transmission layer protocol, capable of implementing data
communications between networks efficiently. The ZXMSG 5200 also can
implement DSL subscribers access.
The ZXMSG 5200 Multiplex Service Gateway is one of the major NGN-
oriented products that are recently released by ZTE.
Documents that ship with the ZXMSG 5200 include five manuals that
describe basic principles as well as installation, operation and maintenance
methods and procedures in detail. These documents are:
ZXMSG 5200 (V2.0) Multiplex Service Gateway Technical Manual
ZXMSG 5200 (V2.0) Multiplex Service Gateway Installati n Manual
ZXMSG 5200 (V2.0) Multiplex Service Gateway Operati n Manual
ZXMSG 5200 (V2.0) Multiplex Service Gateway Maintenance Manual
ZXMSG 5200 (V2.0) Multiplex Service Gateway NMS Manual
Purpose of this Technical Manual
This technical manual focuses on system composition, performance,
technical indices, software/hardware, service functions and networking
configurations of the ZXMSG 5200 Multiplex Service Gateway. This manual
can help readers fully understanding the ZXMSG 5200 system. This
manual is arranged as follows:
Chapter 1, “Overview”, describes NGN products’ functions, features and
development.
Chapter 2, “System Architecture”, depicts system architecture and
features.
Chapter 3, “Technical Specifications”, describes relevant technical indices.
Chapter 4, “Hardware Structure”, describes hardware structure.
Chapter 5, “Software Structure”, describes software structure.

ZXMSG 5200 (V2.0) Technical Manual
x Confidential and Proprietary Information of ZTE CORPORATION
Chapter 6, “Interface and Communication”, describes interfaces and
relevant communication protocols.
Chapter 7, “Networking Modes”, describes system networking modes and
applications.
Appendix A: “Abbreviations”, lists all abbreviations used in this manual.
Typographical Conventions
ZTE documents employ the following typographical conventions.
T ABLE 1 T YP OG R APH IC AL C ONVENTIONS
Typeface Meaning
Italics References to other guides and documents.
“Quotes” Lin s on screens.
Bold Menus, menu options, function names, input fields, radio
button names, chec boxes, drop-down lists, dialog box
names, window names.
CAPS Keys on the eyboard and buttons on screens and company
name.
Constant width Text that you type, program code, files and directory names,
and function names.
[ ] Optional parameters
{ } Mandatory parameters
| Select one of the parameters that are delimited by it
Note: Provides additional information about a certain topic.
Chec point: Indicates that a particular step needs to be
chec ed before proceeding further.
Tip: Indicates a suggestion or hint to ma e things easier or
more productive for the reader.

About this Technical Manual
Confidential and Proprietary Information of ZTE CORPORATION xi
Mouse Operation Conventions
T ABLE 2 M OUSE O PERAT ION C ONV ENT IO NS
Typeface Meaning
Clic Refers to clic ing the primary mouse button (usually the left
mouse button) once.
Double-clic Refers to quic ly clic ing the primary mouse button (usually the
left mouse button) twice.
Right-clic Refers to clic ing the secondary mouse button (usually the right
mouse button) once.
Drag Refers to pressing and holding a mouse button and moving the
mouse.

ZXMSG 5200 (V2.0) Technical Manual
xii Confidential and Proprietary Information of ZTE CORPORATION
Safety Signs
T ABLE 3 S AF ET Y S IGNS
Safety Signs Meaning
Danger: Indicates an imminently hazardous situation, which if
not avoided, will result in death or serious injury. This signal
word should be limited to only extreme situations.
Warning: Indicates a potentially hazardous situation, which if
not avoided, could result in death or serious injury.
Caution: Indicates a potentially hazardous situation, which if not
avoided, could result in minor or moderate injury. It may also
be used to alert against unsafe practices.
Erosion: Beware of erosion.
Electric shoc : There is a ris of electric shoc .
Electrostatic: The device may be sensitive to static electricity.
Microwave: Beware of strong electromagnetic field.
Laser: Beware of strong laser beam.
No flammables: No flammables can be stored.
No touching: Do not touch.
No smo ing: Smo ing is forbidden.

About this Technical Manual
Confidential and Proprietary Information of ZTE CORPORATION xiii
How to Get in Touch
The following sections provide information on how to obtain support for
the documentation and the software.
Customer Support
If you have problems, questions, comments, or suggestions regarding
your product, contact us by e-mail at supp[email protected].cn. You can also
call our customer support center at (86 755 26771900 and (86 800-
9830-9830.
Documentation Support
ZTE welcomes your comments and suggestions on the quality and
usefulness of this document. For further questions, comments, or
suggestions on the documentation, you can contact us by e-mail at
[email protected]om.cn; or you can fax your comments and suggestions to (86
755 26772236. You can also explore our website at
http://support.zte.com.cn, which contains various interesting subjects like
documentation, knowledge base, forum and service request.

Confidential and Proprietary Information of ZTE CORPORATION 15
C h a p t e r 1
Overview
In this chapter, you will learn about:
The development of NGN products.
IP networks will become infrastructure for the next generation network
(NGN due to rapid development. The NGN system features following
remarkable distinctions than PSTN:
The PSTN networking and services are not transparent. The PSTN
services are transported in segments over physical networks. The
PSTN is constructed in a leveled networking mode in terms of services
and structure. Since the Internet is virtual, any two points within the
Internet can have peer-to-peer communications. As a result, the
service deployment and physical construction on the IP network are
transparent. The NGN is a kind of application on the IP network, so it is
a virtual stepless network.
The PSTN switch is comprehensive and integrates access, control,
transmission and other functions; the switch thus is complicated and
high in cost. The NGN network equipment separates access, control
and transmission functions.
Firstly, the transmission in the NGN is carried by IP base networks.
Secondly, since the complexity of communication technologies between
devices and networking is reduced in the IP network, separation of
subscriber access from control becomes possible.
Control functions independent of access equipment enables one single
control point controlling a larger network than a PSTN CO office. This
facilitates service provisioning and central management. In the NGN,
control functions are implemented by Soft Switch (SS .
The PSTN implements subscriber access at central offices (CO . The
CO features the following advantages:
Forming a large scale operation with a certain convergence ratio
between switching resources and subscribers.
Minimizing PSTN layers.
Simplifying management in a centralized way and providing quality
services for subscribers in a central and uniform way (within one same
exchange .

ZXMSG 5200 (V2.0) Technical Manual
16 Confidential and Proprietary Information of ZTE CORPORATION
NGN network equipment can implement function separation of access,
control and transmission; access equipment is more flexible in
structure and richer in functions; access is closer to subscribers and
decentralized in space.
MG (Media Gateway can be functionally divided into many types like TG
and AG for fitting NGN architecture better. The new NGN-based AG is to
be open subscriber access equipment that meets most of required
subscriber capacities; AG is rich in more flexible subscriber access
measures and features high concentration and compact structure.
China telecom industry has launched a variety of networks that are
running at the same time after years development, including traditional
circuit-switching networks and new packet-switching transmission
networks, like PSTN, DDN, ATM and IP networks. The wide coverage of the
telecom access networks results in huge investment, and the bases of
different networks lead to high network maintenance cost and operation
cost. This aggravates the devotion of operators in improving
competitiveness. The end users are no longer satisfied with the traditional
telephony, fax and low-speed data services. They become more and more
dependent on high-speed Internet access, video telephone, VOD and other
broadband services. How to select a proper integrated service access
network to meet the local development demands increasingly becomes the
focus concerned with the major operators.
On the basis of the existing PSTN, DDN, ATM and IP backbone
transmission networks, integrated access at the access layer will prevent
repeated network construction, save equipment investment and facilitate
operators’ uniform management of equipment and services. Meanwhile, it
implements complete integration with the SDH/MSTP/IP base bearer
networks, and fully implements the narrowband voice, data access at
various speeds, xDSL/LAN and other broadband access at the subscriber
side. The diverse subscriber demands are met, and personalized services
can be provided according to the telecom operators, service demands and
subscriber groups. It will become a real narrowband/broadband integrated
access solution that majors in voice services and is smoothly compatible
with data services and broadband services for the operators.
NGN technologies have initiated a strong tornado around the world in the
last year. Most operators have carried out related technical trials. The
traditional circuit-switching-cored PSTN provides subscribers with end-to-
end voice services. The development of data communication technologies
brings forth a new service platform that makes it possible to bear all kinds
of services on one single data network. In contrast to the traditional
network, the NGN has the following characteristics: Open architecture and
standard interfaces; services separate from calls and calls separate from
media; network division of service layer, control layer, network layer and
access layer; SoftSwitch-cored control layer for service control and
management; IP protocol in network layer for integrating services;
diversified broadband seamless access at access layer.
Access networks in the coming era will be based on numerous existing
network resources. It is necessary to provide access equipments of
integrated service access capabilities for the users to protect their
investment and develop the access network. Currently, the concept of

Chapter 1 - Overview
Confidential and Proprietary Information of ZTE CORPORATION 17
integrated access network attracts attentions from both operators and
manufacturers. The fact most manufacturers are launching related
equipment implies that the integrated media access equipment will
become the next hotspot of access network.

ZXMSG 5200 (V2.0) Technical Manual
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Confidential and Proprietary Information of ZTE CORPORATION 19
C h a p t e r 2
SystemArchitecture
In this chapter, you will learn about:
System architecture and features.
System Overview
System Background
In the growth of telecom services, traditional telephony services and data
services are integrated into a uniform network, which is called the next
generation network (NGN . The NGN has passed the three stages of
laboratory, marketing promotion and scale applications. Thanks to efforts
of various manufacturers and operators, Softswitch is becoming
increasingly mature, functionally more diversified, more stable in
performance and more standardized, thus bringing Softswitch to the
market.
As an integrated network, the NGN has an open network architecture that
can provide voice, data and multimedia services. The transport layer of
the network is a packet network based on uniform protocols. The access
equipment of the network provides a wide variety of access measures for
subscribers. It converts different subscriber services into a uniform format
that can be transmitted in the network. In the NGN, the access equipment
is called a media access gateway (AG . The AG plays a critical role in the
NGN. With the most construction efforts and direct touch of subscribers, it
is the “antenna” of NGN.
The development of the NGN is not actually abrupt or revolutionary, but
an evolving process. During the evolution from the PSTN to the NGN, it is
important to maximize the protection of operators’ early investment,
including the construction of twisted pair resources and the subscriber
interface resources in end offices. Despite an innovative technology, the
NGN has no innovations in the access mode for subscribers. As a result, it
is required to consider a smooth evolution in planning the transition from
telecom network to NGN, for both the telecom operators and the
equipment manufacturers. The NGN can be used in the planning where a

ZXMSG 5200 (V2.0) Technical Manual
20 Confidential and Proprietary Information of ZTE CORPORATION
telecom network is newly constructed. When the NGN becomes completely
mature, the old PSTN can be cut over into the new NGN at minimum cost.
In such a context, the emergence and development of the ZXMSG 5200
system meet the following requirements:
NGN AG requirements, guaranteeing a leading market position in the
AG field.
Requirements for upgrading MSAN equipment in the PSTN into AG at
low costs
Applicable Standards
The ZXMSG 5200 belongs to the integrated media access gateways,
following YD 1243.3-2002 Integrated Access Media Gateway Technical
Specifications. The Integrated Access Media Gateway provides abundant
service access for various subscribers, such as analog subscriber access,
ISDN access, V5 access, XDSL access and LAN access. It also can access
to IP network or ATM network.
Main Functions
The ZXMSG 5200 can get analog POTS-interface subscribers access to IP
networks directly and implement voice/fax conversion at the analog
subscriber side and voice/fax conversion at the IP network side. The
ZXMSG 5200 also can access common POTS-interface subscribers to
narrowband voice services. ZXMSG 5200’s SoftSwitch implements voice
compressing/decompressing (G.723.1, G.711 and G.729 , facsimile (T.30
and T.38 and more VoIP or IP FAX services under the control of
H.248/MGCP.
In the NGN with SoftSwitch, the ZXMSG 5200 can be configured to take
the place of traditional access network in networking or to support hybrid
networking with the SoftSwitch in access networks.
System Working Principles
The ZXMSG 5200 takes “TDM + IP” as a kernel, internally comprising the
circuit-switching network and Ethernet-switching network. The working
principle is illustrated in Figure 1: