Multiplex Service Gateway Technical Manuals64f148b4acc3f5a3.jimcontent.com/download/version... · ZXMSG 5200 Multiplex Service Gateway Technical Manual Version 2.0.2 ZTE CORPORATION

ZXMSG 5200Multiplex Service Gateway

Technical Manual

Version 2.0.2

ZTE CORPORATION ZTE Plaza, Keji Road South, Hi-Tech Industrial Park, Nanshan District, Shenzhen, P. R. China 518057 Tel: (86) 755 26771900 800-9830-9830 Fax: (86) 755 26772236 URL: http://support.zte.com.cn E-mail: [email protected]

http://support.zte.com.cn/

mailto:[email protected]

LEGAL INFORMATION Copyright © 2006 ZTE CORPORATION. The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution of this document or any portion of this document, in any form by any means, without the prior written consent of ZTE CORPORATION is prohibited. Additionally, the contents of this document are protected by contractual confidentiality obligations. All company, brand and product names are trade or service marks, or registered trade or service marks, of ZTE CORPORATION or of their respective owners. This document is provided “as is”, and all express, implied, or statutory warranties, representations or conditions are disclaimed, including without limitation any implied warranty of merchantability, fitness for a particular purpose, title or non-infringement. ZTE CORPORATION and its licensors shall not be liable for damages resulting from the use of or reliance on the information contained herein. ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applications covering the subject matter of this document. Except as expressly provided in any written license between ZTE CORPORATION and its licensee, the user of this document shall not acquire any license to the subject matter herein. The contents of this document and all policies of ZTE CORPORATION, including without limitation policies related to support or training are subject to change without notice.

Revision History

Date Revision No. Serial No. Reason for Revision

12/30/2006 R1.0 sjzl20070023 First edition

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Document Name ZXMSG 5200 ()V2.0.2 Multiplex Service Gateway Technical Manual

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Contents

About this Manual........................................................... ix

Purpose.............................................................................. ix Intended Audience ............................................................... ix Prerequisite Skill and Knowledge ............................................ ix What is in This Manual.......................................................... ix Related Documentation.......................................................... x Conventions........................................................................ xi How to Get in Touch............................................................ xii

Chapter 1.......................................................................... 1

Introduction..................................................................... 1

Introduction ...................................................................1

Working Principle ............................................................2

Software Architecture ......................................................3

Hardware Architecture .....................................................4

System Features .............................................................5

System Functions............................................................6

Chapter 2.......................................................................... 7

System Description..........................................................7

Operation Support Subsystem...........................................7

Protocol Subsystem.........................................................8

Service (call) Subsystem..................................................9

Bearer Subsystem......................................................... 10

Operation and Management Subsystem............................ 10

Database Subsystem ..................................................... 11

TMS Subsystem ............................................................ 12

Media Gateway Control Protocol (Megaco/H.248)............... 12

System Hardware.......................................................... 13 Cabinets ............................................................................ 13

Shelves..............................................................................14 Cards ................................................................................17

Technical Specifications ................................................. 22 Interfaces ..........................................................................22 Cabinet Environment Parameters...........................................23 Industry Standards..............................................................24 International Standards........................................................25 National Standards ..............................................................28

Chapter 3........................................................................29

Service Functions...........................................................29

Introduction ................................................................. 29

Narrowband Services..................................................... 30 V5-PSTN Service .................................................................30 V5-ISDN Service .................................................................30 VOIP-PSTN Service..............................................................31 VOIP-ISDN Service ..............................................................31 Fax Service over IP..............................................................32

Broadband Services....................................................... 33 ADSL Service......................................................................33 ADSL2+ Service..................................................................35 VDSL Service......................................................................37 SHDSL Service....................................................................38 Ethernet Service .................................................................39 VLAN Service......................................................................39 Multicast Service .................................................................43 EPON Service......................................................................44 QoS Service .......................................................................45 IP Service ..........................................................................46

Chapter 4........................................................................47

ZXMSG Networking........................................................47

ZXMSG 5200 Networking ............................................... 47

ZXMSG Applications ...................................................... 48 IP Phone Networking ...........................................................48

Appendix A.....................................................................49

Abbreviations.................................................................49

Figures............................................................................53

Tables.............................................................................55

Index..............................................................................57


Confidential and Proprietary Information of ZTE CORPORATION ix

About this Manual

Purpose

This manual provides technical guidelines that support the operation of the ZXMSG 5200 Multiplex Service Gateway.

Intended Audience

This document is intended for engineers and technicians who perform operation activities on the ZXMSG 5200 Multiplex Service Gateway.

Prerequisite Skill and Knowledge

To use this document effectively, users should have a general understanding of telecommunications technology. Familiarity with the following is helpful:

Basics of Networking

Access Network (AN) technologies and Next Generation Network (NGN) technologies

Knowledge of Media Gateway

What is in This Manual

This manual contains the following chapters:

T AB L E 1 – C H A P T E R S U M M AR Y

Chapter Summary

Chapter 1, Introduction Introduces the working principle, architecture, system features and functions.

Chapter 2, System Description

Introduces operation support, protocols, database, network management, system hardware, technical specifications.

ZXMSG 5200 (V2.0.2) Multiplex Service Gateway Technical Manual

x Confidential and Proprietary Information of ZTE CORPORATION

Chapter Summary

Chapter 3, Service Functions

Introduces narrowband services and broadband services.

Chapter 4, Networking Mode

Introduces MSG networking modes and its applications.

Related Documentation

The following documentation is related to this manual:

ZXMSG 5200 Multiplex Service Gateway Documentation Guide

Technical Category:

ZXMSG 5200 Multiplex Service Gateway Hardware Manual

Installation Category:

ZXMSG 5200 Multiplex Service Gateway Hardware Installation Manual (OUT30)

ZXMSG 5200 Multiplex Service Gateway Hardware Installation Manual (OUT50C/D)

ZXMSG 5200 Multiplex Service Gateway Hardware Installation Manual (19D06H20)

Operation Category:

ZXMSG 5200 Multiplex Service Gateway Operation Manual

ZXMSG 5200 Multiplex Service Gateway Command Manual

Maintenance Category:

ZXMSG 5200 Multiplex Service Gateway Maintenance Manual (Routine)

ZXMSG 5200 Multiplex Service Gateway Maintenance Manual (Troubleshooting)

About this Manual

Confidential and Proprietary Information of ZTE CORPORATION xi

Conventions

ZTE documents employ the following typographical conventions.

T AB L E 2 – TY P O G R AP H I C A L C O N V E N T I O N S

Typeface Meaning

Italics References to other Manuals and documents.

“Quotes” Links on screens.

Bold Menus, menu options, function names, input fields, radio button names, check boxes, drop-down lists, dialog box names, window names.

CAPS Keys on the keyboard 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.

Checkpoint: Indicates that a particular step needs to be checked before proceeding further.

Tip: Indicates a suggestion or hint to make things easier or more productive for the reader.

T AB L E 3 – M O U S E OP E R AT I O N C O N V E N T I O N S

Typeface Meaning

Click Refers to clicking the primary mouse button (usually the left mouse button) once.

Double-click Refers to quickly clicking the primary mouse button (usually the left mouse button) twice.

Right-click Refers to clicking the secondary mouse button (usually the right mouse button) once.

Drag Refers to pressing and holding a mouse button and moving the mouse.

Typographical Conventions

Mouse Operation

Conventions


xii Confidential and Proprietary Information of ZTE CORPORATION

How to Get in Touch

The following sections provide information on how to obtain support for the documentation and the software.

If you have problems, questions, comments, or suggestions regarding your product, contact us by e-mail at [email protected]. You can also call our customer support center at (86) 755 26771900 and (86) 800-9830-9830.

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]; or you can fax your comments and suggestions to (86) 755 26772236. You can also browse our website at http://support.zte.com.cn, which contains various interesting subjects like documentation, knowledge base, forum and service request.

Customer Support

Documentation Support

Confidential and Proprietary Information of ZTE CORPORATION 1

C h a p t e r 1

Introduction

This chapter covers the following topics: Introduction

Working Principle

Software Architecture

Hardware Architecture

System Features

System Functions

Introduction ZXMSG 5200 Multiplex Service Gateway is one of the major Next Generation Network (NGN) oriented products recently developed by ZTE. NGN combines the public switched telephone network (PSTN) and Integrated Services Digital Network (ISDN), creating a single multi-service network.

ZXMSG 5200 is a type of integrated media access gateway but also provides narrowband and broadband services. It adds a Voice over Internet Protocol (VoIP) module to the previous generation systems. ZXMSG 5200 adopts standard application layer and transport layer protocols to convert and handle access streams. At the same time, it is compatible with existing network devices. It provides many user side and network side interfaces for different network environments, which effectively meets the integrated services access requirements. It also provides high access multimedia services and Application Programming Interface (API) generated services.

ZXMSG 5200 uses various technologies as listed below:

Ethernet

Asymmetric digital subscriber line (ADSL)

ADSL2+

Background

Introduction

Technologies


2 Confidential and Proprietary Information of ZTE CORPORATION

Very high speed digital subscribers line (VDSL)

Single pair high digital subscriber line (SHDSL)

Multicast

Ethernet passive optical networks (EPON)

ISDN

PSTN

ZXMSG 5200 can fulfill the following subscriber requirements:

High speed internet access for residential and office subscribers.

High quality services, such as teleconference and fax for commercial subscribers.

Operation and maintenance demands of broadband subscribers.

Subscriber security administration and modem management.

NGN access gateway (AG) requirements and for upgrade MSAN equipment into AG at low costs.

Working Principle ZXMSG 5200 core technology is ‘TDM + IP’ and supports two types of switching networks:

Circuit-switching

Ethernet-switching

Figure 1 shows ZXMSG 5200 work flow. The dotted line frames present the card functions.

F I G U R E 1 – ZXMSG 5200 W O R K I N G P R I N C I P L E

TDM switching

Ethernet switching POTS

xDSL

Voice compressing

CNIC

( NAT module )

IP network

ICS

MPR ICS upper sub-card

Subscriber Requirements

Introduction

Working Principle

Chapter 1 Introduction


ZXMSG 5200 working principle is as follows:

Narrowband service signals enter the TDM switching module of main control card (i.e. ICS/EICS/GIS).

TDM switch performs circuit-switching on the voice signals and send them to voice compression module.

MPR voice compression function converts voice traffic into IP packets and send them to Ethernet switching module.

Ethernet switching chip switches the IP packets and send them to CNIC for network address translation.

After network address translation, IP packets enter the IP network through an uplink interface after Ethernet switching.

Broadband data enters ICS Ethernet switching chip and directly goes to IP network through an uplink interface.

Software Architecture The software system provides following functions.

Resource management

Software modules interfaces

Database configuration implementation

Operation and management (O&M)

Figure 2 shows the ZXMSG 5200 software structure.

F I G U R E 2 – ZXMSG 5200 SO F T W AR E S T R U C T U R E

Database

Subsystem

Description

Introduction

Structure



H.248 system is responsible for maintaining connection between ZXMSG 5200 and SoftSwitch (SS), interpreting and executing SS commands. H.248 describes service (CALL) and its operation logically. The CALL implements following functions.

H.248 command execution

Physical operations on ZXMSG 5200 through bottom layer drive software

Signal receiving and forwarding to the H.248 system

Operations maintenance and creation related with ZXMSG 5200 structure

Refer to System Description for the functions and operation flow of the software modules.

Hardware Architecture ZXMSG 5200 hardware system consists of a control unit and a subscriber unit. The control unit implements system functions and service access expansion unit implements expansion to serve more subscribers.

Figure 3 shows the ZXMSG 5200 hardware structure.

F I G U R E 3 – ZXMSG 5200 H A R D W A R E S T R U C T U R E

ICS

ICS

LC0 LC1 ... LC9 TSLC

2M Hw8K,2M,4M Clock

100M Ethernet

LC0 LC1 ... LC9 TSLC

ICS

2M Hw8K,2M,4M Clock100M Ethernet

LC10 LC11

MPR MPR

Ethernet

2*8MHw

2*100M

1*8MHw 1*100M

ICS

CNIC

2*100M, 1GE

Control unit (shelf)

Subscriber unit (shelf)

LC: Line Card, including narrowband line card and broadband line card

TSLC: Test Subscriber Line Card ICS: Integrated Control and Switch Card

Description

Introduction

Structure

Chapter 1 Introduction


MPR: Packet processing and resource board CNIC: Network address translation module

Refer to System Hardware for functions of units and cards.

System Features ZXMSG 5200 system features are as follows:

ZXMSG 5200 completely meets public telecommunication and private networks requirements. ZXMSG 5200 also provides broadband subscriber interfaces. These interfaces are used for broadband service configuration according to subscribers' requirements.

The system size is smaller. Network architecture and configuration are simple and suitable for local network optimization.

The system provides mutual backup for power supplies and active/standby backup for ICS cards. ZXMSG 5200 has two ICS cards at each layer of subscriber shelf and only one is in the active mode at a time. The one which is in the active status is called the active, while the other one is called the standby. In case of failure of the active card, the standby card takes over the system control. This process is active/standby switching, which keeps the whole system running from being affected and greatly improves the system reliability and stability.

The system capabilities are as follows:

Ethernet convergence, switching, and Ethernet L2 protocol processing

Interfaces for broadband services such as IP/xDSL

PSTN/ISDN subscriber line test and DSL subscriber line test (in coordination with an external DSL subscriber line tester)

The whole system is based on a uniform Ethernet switching platform. It implements switching of three data flows:

Intra-module control information

H.248 protocol

RTP data

This Ethernet unit is totally private, not connected to any external Ethernet, and outgoing data flows pass through the CNIC egress uniformly to ensure security.

MPR/MPRB card converts voice signals into IP packets.

ZXMSG 5200 supports 100 Mbps (FE) and 1000 Mbps (GE) Ethernet interfaces at the IP network side, which are used as egresses for narrowband media flow, H.248 protocol flow, network signal flow and broadband data flow. These four data flows can be flexibly configured on any uplink Ethernet port.

Description

Abundant Service

Interfaces

High Integration

Active/standby Mode

Capabilities

Ethernet Switching

VoIP Function

Uplink Ports



ZXMSG 5200 supports networking with multiple SoftSwitch. When many SoftSwitches are in an active/standby relation, the ZXMSG 5200 supports H.248 polling registration. When an active SoftSwitch fails, the SoftSwitch will contact a standby SoftSwitch automatically and accepts its control.

System Functions In a NGN network with SoftSwitch, ZXMSG 5200 can take the place of traditional access network in networking or to support hybrid networking with the SoftSwitch in access networks.

ZXMSG 5200 provides following functions:

The SoftSwitch to which ZXMSG 5200 is attached implements voice compressing/decompressing facsimile and more VoIP or IP FAX services under the control of H.248/MGCP.

Accesses common POTS-interface subscribers to provide narrowband voice services. Gets analog POTS-interface subscribers access to IP networks directly and implements voice/fax conversion at the analog subscriber side and voice/fax conversion at the IP network side.

Accesses to broadband interfaces like ADSL/ADSL2+, VDSL, SHDSL and Ethernet through different broadband protocols to provide broadband services.

Uses different narrowband, broadband and universal protocols for providing different services.

Provides end-to-end auto or semi-auto service configuration functions at the network side which provides easy service provisioning and adjustment.

Multiple Networking

Introduction

Functions


C h a p t e r 2

System Description

This chapter covers the following topics: Operation Support Subsystem

Protocol Subsystem

Service System

Bearer Subsystem

Operation and Management subsystem

Database Subsystem

TMS Subsystem

Media Gateway Control Protocol (Megaco/H.248)

System Hardware

Technical Specifications

Operation Support Subsystem Operation Support Subsystem (OSS) is based on Board Support Package (BSP), driver and real time OS Vxworks. The subsystem provides a uniform platform to upper-layer applications for completion of various functions.

OSS functions are as follows:

Task and process management

Intra-card and inter-card communication

Memory management

Timer management

File system management functions

Version loading

Introduction

Functions



Version management

System software management

Figure 4 shows the internal functional sub-modules.

F I G U R E 4 – SU B -M O D U L E S

OSS features are as follows:

Switching chip initialization and normal running

Access to the MIB set, address table, VLAN table and port setting register (which are maintained by the switching chip)

Configuration of packet transmitting/receiving buffer

Message forwarding (sent by the switching chip) to CPU and from CPU to TCP/IP protocol subsystem or switching protocol subsystem

Service layer with data forwarding paths

Protocol Subsystem The protocol subsystem consists of three parts:

Universal protocol subsystem

Broadband protocol subsystem

Narrowband protocol subsystem

Sub-modules

Features

Introduction

Chapter 2 System Description


The universal protocol subsystem implements TCP protocol, UDP protocol, IP protocol, ICMP protocol, ARP protocol, RARP protocol, TFTP, FTP, HTTP, SNMP, and Telnet.

The broadband protocol subsystem modules are as follows:

MSTP module

STP

RSTP

MSTP

xDSL

ADSL

ADSL2+

VDSL

SHDSL

Multicast

IGMP snooping

IGMP proxy

IGMP router

QOS

VLAN

802.1Q

SVLAN

ETH port manager

Port configuration

Port trunking

Ethernet switch function configuration

Narrowband protocol subsystem includes V5 and H.248 for PSTN/ISDN. It receives/transmits, processes calls and control messages between users and ZXMSG 5200, and those between ZXMSG 5200 and upper level Local Exchange (LE).

Service (call) Subsystem Service subsystem operates according to protocol subsystem commands.

The system functions are as follows:

Uniform service interfaces to upper layer

Shields hardware differences

Breaks down protocol commands to send to lower layer

Universal Protocol

Subsystem

Broadband Protocol

Subsystem

Narrowband Protocol Subsystem

Introduction

Functions



Carries out practical operations by invoking bearer subsystem interface

Bearer Subsystem Bearer system resides in CPU of each hardware card. For example, extended shelves TPU, ICS master processor 8250, ICS slave processor 8031, 8240 chip of MPR and CPU of ADLG card.

Bearer subsystem functions are as follows:

Detection of subscriber circuits

Subscriber circuit testing

Announcement play

DTMF digit receiving

ISDN subscribers message collection and forwarding

VOIP coding & decoding

2K switching network connection

ADSL subscriber configuration management

Specific function interfaces to the upper layer, so other modules can invoke them.

Operation and Management Subsystem Operation and management subsystem supports the SNMP management and CLI management. It provides inner interface for the operation and maintenance platform. CLI management includes telnet and console port management.

Operation and management subsystem performs following management functions:

Basic Command: User management, system help, basic information, system logs, etc.

System control: Shelf and card management, version management, data and version download, data backup, data synchronization etc.

Ethernet protocol: Port configuration, VLAN/GMRP/GVRP management, multicast management, STP management, trunk management etc

MPR management: VOIP management, Resource management etc.

Introduction

Functions



ADSL: Line configuration, alarm configuration, port management etc

Net work management: Out-band and in-band network management configuration, SNMP configuration, FTP configuration etc.

Track tests: 112 line test, signal track

Debug management

Call control

H.248 protocol

Database Subsystem Database subsystem manages system data and resources. It defines, describes, operates and maintains the data. The subsystem accepts and fulfils different requests from application programs and databases, and it is also responsible for data security.

The database subsystem functions are as follows:

Database maintenance

Database access interfaces

Data management in two modes:

CLI

SNMP

Data management interface to O&M subsystem

Building memory database

Offering uniform interfaces

Configuration and collecting information from following subsystems:

Protocol subsystem

Service subsystem

Tornado for Managed Switches (TMS) subsystem

Operation support subsystem

Bearer subsystem

The features of database subsystem are as follows:

Database organization and management

Database data access concurrency

Integrity and consistency of modifying database data

Introduction

Functions

Features



TMS Subsystem TMS subsystem is an outsourced software package to complete the switch management functions. OS vendor provides TMS so it is functionally independent and closely related to OS.

Media Gateway Control Protocol (Megaco/H.248) The Media Gateway Control Protocol (Megaco) is a result of joint efforts of the IETF and the ITU-T Study Group. Therefore, the IETF defined Megaco is the same as ITU-T Recommendation H.248.

Megaco/H.248 addresses the relationship between the Media Gateway (MG), which converts circuit-switched voice to packet-based traffic. Megaco/H.248 instructs Media Gateway, to connect Packet Data Network (PDN) packet stream to Real-Time Transport Protocol (RTP) packet. Megaco/H.248 architecture is similar to Media Gateway Control Protocol (MGCP) and the controller-to-gateway relationship, but Megaco/H.248 supports a broader range of networks, such as ATM.

There are two basic components in Megaco/H.248: terminations and contexts. Terminations represent streams entering or leaving the MG such as analog telephone lines, RTP streams, or MP3 streams. Terminations have properties, such as the maximum size of a jitter buffer, which can be inspected and modified by the Media Gateway Controller (MGC).

Terminations are placed into contexts, when two or more termination streams are mixed and connected together. Contexts are created and released by the MG under command of the MGC. A context is created by adding the first termination, and it is released by removing (Subtracting) the last termination.

For more than one stream termination, context provides multi-stream context. Audio, video, and data streams may exist in a context among several terminations.

Protocol Structure - Megaco/H.248 (Media Gateway Control Protocol)

Megaco/H.248 uses a series of commands to manipulate terminations, contexts, events, and signals. The following is a list of the commands:

1. Add - The Add command adds a termination to a context. The Add command on the first Termination in a Context is used to create a Context.

2. Modify - The Modify command modifies the properties, events, and signals of a termination.

Introduction

Functions

MMegaco/H.248 Commands



3. Subtract - The Subtract command disconnects a Termination from its Context and returns statistics on the Termination's participation in the Context. The Subtract command on the last Termination in a Context deletes the Context.

4. Move - The Move command atomically moves a Termination to another context.

5. Audit - The Audit command returns the current state of properties, events, signals, and statistics of Terminations.

6. Notify - The Notify command allows the Media Gateway to inform the Media Gateway Controller of the occurrence of events in the Media Gateway.

System Hardware System Hardware includes:

Cabinets

Shelves

Cards

Cabinets

ZXMSG 5200 adopts various indoor and outdoor type cabinets which are as follows:

Indoor type

19D06H20

ONU100

Outdoor type

OUT30

OUT30E

OUT50C

OUT50D

Table 4 lists cabinet details.

T AB L E 4 – ZXMSG 5200 C AB I N E T S

Cabinet Type Dimensions

(Height * Width * Depth)

Power Consumption

Weight (with Battery)

19D06H20 Indoor 2000 mm * 600 mm * 600 mm

1500 W 200 kg

Introduction

Description



Cabinet Type Dimensions

(Height * Width * Depth)

Power Consumption

Weight (with Battery)

ONU100 Indoor 427 mm * 218 mm * 420 mm

200 W 20 kg

OUT30 Outdoor 1992 mm * 1350 mm * 710 mm

350 W 600 kg

OUT30E Outdoor 2000 mm * 1500 mm * 750 mm

350 W 600 kg

OUT50C Outdoor 1150 mm * 750 mm * 430 mm

150 W 140 kg

OUT50D Outdoor 1150 mm * 750 mm * 430 mm

150 W 140 kg

Shelves

Shelf is like an empty box in which different cards are plugged-in. ZXMSG 5200 has one main and four expansion shelves. The standard shelf is called 6U.

ZXMSG 5200 system supports:

1856 lines of narrowband subscribers, where the main control shelf provides 320 lines and expansion shelves provide 384 lines each.

928 lines of ADSL subscribers, where the main control shelf provides 160 lines and the expansion shelf provides 192 lines each.

ZXMSG 5200 has the following shelf types:

Standard Shelf (6U)

Single power standard shelf

Dual power standard shelf

OUT50C

OUT50D

Single power standard shelf has single POWER H card. It uses MICS backplane. Shelf dimensions are 266.5 mm * 482.6 mm * 318.5 mm (Height * Width * Depth).

Figure 5 shows the single power standard shelf configuration for control shelf.

Introduction

Capacity

Types

Single Power Standard Shelf



F I G U R E 5 – ST AN D AR D S H E L F (S I N G L E PO W E R ) C O N F I G U R AT I O N T A B L E

Dual power standard shelf has two POWER K cards; one is used for hot backup. It uses MBSL backplane. Two POWER K cards are used in this shelf. Shelf dimensions are 266.5 mm * 482 mm * 318.5 mm (Height * Width * Depth). The distance between every two slots is one inch.

Figure 6 shows the dual power standard shelf configuration for control shelf.

F I G U R E 6 – DU AL P O W E R ST AN D AR D S H E L F C O N F I G U R AT I O N T AB L E

OUT50C shelf has 2 layers and total 20 slots. Shelf dimensions are 663 mm * 333 mm * 355 mm (Height * Width * Depth).

Figure 7 shows the OUT50C shelf configuration for control shelf.

Dual Power Standard Shelf

OUT50C



F I G U R E 7 – OUT50C S H E L F S T R U C T U R E

OUT50D shelf has two layers and total 16 slots. Shelf dimensions are 663 mm * 323 mm * 355 mm (Height * Width * Depth). Figure 8 shows the OUT50C shelf configuration for control shelf.

F I G U R E 8 – OUT50D S H E L F S T R U C T U R E

OUT50D



Cards

ZXMSG 5200 card types are as follows:

Control and switching cards

Packet processing and resource cards

Uplink sub-cards

Ethernet cards

Analogue line cards

Digital line cards

DSL subscribers cards

Uplink cards

Integrated voice data subscriber cards

Test subscriber line cards

Power cards

Other cards

Table 5 lists control and switching cards and their description.

T AB L E 5 – C O N T R O L AN D S W I T C H I N G C AR D S

Card Full Name Functions Port & Description

ICS Integrated Control & Switching Card

System controls and switching

256 VLANs; two FE or one GE plus one FE uplink ports; FE star cascading between shelves; four E1

EICS Enhanced Integrated Control & Switching Card

All ICS functions

4 K VLANs; two FE or one GE plus one FE uplink ports; FE star cascading between shelves

GIS Giga Ethernet Integrated Control and Switching Card

All ICS/EICS functions

4 K VLANs; two GE plus two FE uplink ports; GE star cascading between shelves

GISS Giga Ethernet Integrated Control & Switch Card Simplified

All ICS/EICS functions

4 K VLANs; 1 K layer-2 multicast groups (when the card is used as the main control card in the system)

Introduction

Control and Switching

Cards



Table 6 lists the packet processing and resource cards.

T AB L E 6 – P AC K E T P R O C E S S I N G AN D R E S O U R C E C AR D S


MPR Packet processing and resource card

VOIP and Resource card for voice call; 120 channels

-

MPRB Packet processing and resource card type B

VOIP and resource card for voice call; 240 channels

-

Table 7 lists uplink cards and their description.

T AB L E 7 – U P L I N K S U B -C AR D S


EUX Ethernet Uplink Interface Card

Uplink, cascade

Two 100BaseTX ports; Four FE cascading ports for control unit and broad band services

GEUF Giga Ethernet Uplink Card-Fiber mode

Uplink, cascade

One GE optical port; one FE; four FE cascading ports

FEI Ethernet Uplink Card-Fiber mode

Uplink, cascade

Two uplink FE optical ports; four FE cascading ports

GEI Giga Ethernet Interface Card

Uplink, cascade

Two uplink FE electrical ports; two uplink GE optical ports

GEUT Giga Ethernet Uplink Card-TX mode

Uplink, cascade

Four FE ports for cascade; one 10/100/1000 Mbps uplink port

GEIS Giga Ethernet Interface Card-Simplified

Uplink, cascade

One GE port and one FE port for uplink (Valid when control card is GISS; the card provides narrowband and broadband cascade.)

SUPI Slave Casing Uplink Interface Card

Uplink, cascade

One GE or one FE uplink port (Only valid in the slave shelf)

Packet Processing and Resource Cards

Uplink Sub-cards



Table 8 lists Ethernet cards and their description.

T AB L E 8 – E T H E R N E T C AR D S

Card Full Name Function Port & Description

ETI Ethernet Transform Card

Ethernet layer 2 switching function

Six 100 Mbps Ethernet ports

ETC Ethernet Transform Card


Two FE ports

(Valid when control card is ICS/EICS/GISS)

GETC Giga Ethernet Transform Card


Two GE ports

(Valid when control card board is GIS)

EPOL EPON Interface Card long distance

OLT side related functions

One SC optical port connecting to 32 ONU of EPON (via ODN)

Table 9 lists analog line cards and their description.

T AB L E 9 – AN AL O G L I N E C A R D S

Card Full Name Function Port & Description

ALC Analog Line Card

POTS access 32 analog subscriber ports

RALC Polarity Reversed Analog Line Card

POTS access and reversed polarity

32 analog subscriber ports

FLC Far-end Line Card

POTS access, reversed polarity, 12 KC/16 KC metering pulse and long distance functions

16 analog subscriber ports

Table 10 lists digital line cards and their description.

T AB L E 10 – D I G I T AL L I N E C AR D S

Cards Full Name Function Port & Description

DLC Digital Subscriber Line Card

Basic rate interface for ISDN. Transceiving of 2B+D data and format conversion

2B+D channel and U interface function of the ISDN physical layer

Ethernet Cards

Analog Line Cards

Digital Line Card



Table 11 lists DSL subscriber cards and their description.

T AB L E 11 – DSL S U B S C R I B E R S C AR D S


ADL ADSL Digital Subscriber Line Card

ADSL subscriber access

16 ADSL ports

GADL Giga Backplane Interface ADSL Subscriber Line Card

ADSL subscriber access. Same function as ADLG DSL interface Card

16 ADSL ports to implement ATM cell access

VDL VDSL Digital Subscriber Line Card

Conversion from VDSL to Ethernet port; receiving eight VDSL signals; VLAN and multicast functions

Eight VDSL ports; one 100 Mbps Ethernet port

SDL SHDSL Digital Subscriber Line Card

SHDSL subscriber access; conversion of ATM cells to Ethernet frames

16 SHDSL ports (ATM mode)

Table 12 lists integrated voice data subscriber card and its description.

T AB L E 12 – I N T E G R AT E D V O I C E D AT A S U B S C R I B E R C AR D S


ILC Integrated Voice Data Subscriber Card

Integration of major ALC and ADSL functions; and support of broadband and narrowband subscribers at the same time

16 ADSL ports and 16 POTS ports; one 100 Mbps Ethernet port connected to switching card

Table 13 lists test card and its description.

T AB L E 13 – TE S T C AR D S


TSLC Test Subscriber Line Card

PSTN/ISDN subscriber line test

Test ports on the backplane to connect subscriber buses

Table 14 lists power cards and their description.

DSL Subscriber Cards

Integrated Line Card

Test Line Card

Power Cards



T AB L E 14 – PO W E R C AR D S

Cards Full Name Function Description

POWER H Power Card Secondary power and ringing current

Power connector on the backplane

POWER K Power Card Secondary power and ringing current


POWER G Power Card Secondary power and ringing current


PPC - Primary power supply

For OUT50C and OUT50D shelves

Table 15 lists the other cards and their description.

T AB L E 15 – OT H E R C AR D S


ODTI Octal Digital Trunk Interface Card

Conversion of signals between two 8 Mbps HW and eight E1s

Eight E1 ports

ATI Digital Interface Cards

Uplink connection; conversion of ATM cells and Ethernet frames

One 155-Mbps ATM optical port for uplink connection

EPC Environment Power Control

Collections of environment alarm and power data; reporting local alarm and real-time monitoring data at the same time

-

EMB Environment Monitoring Board

Collections of environment alarm and power data; reporting local alarm and real-time monitoring data at the same time

Only for OUT50C and OUT50D

Other Cards



Technical Specifications Technical Specifications include:

Interfaces

Cabinet Environment Parameters

Industry Standards

International Standards

National Standards

Interfaces

ZXMSG 5200 supports three types of interfaces as follows:

Subscriber Side Interface

Network Side Interface

Management Interface

ZXMSG 5200 supports the following subscriber interfaces:

1. POTS simulation subscriber interface

2. ISDN 2B+D/30B+D subscriber interface

3. xDSL subscriber interface

4. FE/GE Ethernet interface

5. EPON optical interface

ZXMSG 5200 supports the following network interfaces:

1. FE/GE Ethernet/Optical interface

2. E1 Interface

3. ATM Interface

ZXMSG 5200 supports the following management interfaces:

1. Maintenance console port

2. Maintenance network port

3. EPM monitor port

ZXMSG 5200 provides ATM interface through ATI card. It is a 155 Mbps ATM optical interface for uplink connection.

Subscriber Side Interface

Network Side Interface

Management Interface

ATM Interface



Cabinet Environment Parameters

ZXMSG 5200 cabinets are categorized as follows:

19D06H20 and ONU100 Indoor Cabinet

OUT30 and OUT50 Outdoor Cabinet

Table 16 lists environment parameters for indoor cabinet.

T AB L E 16 – EN V I R O N M E N T P AR AM E T E R S

Name Description

Grounding Resistance

≤ 10 ohm

Temperature Control Method

Industrial air conditioning equipment

Operating Temperature

-35ºC ~ 40ºC

Relative Humidity 10% ~ 90%

Atmospheric Pressure

1.08 * 105 Pa to 5.1 * 104 Pa

Operating Voltage AC: 220 ± 10% VAC 50 Hz

240 ± 10% VAC 60 Hz

DC: –57 V DC ~ –40 V DC

Air Conditioner Running Normally

Air Pollution Equipment must not expose to corrosive air, such as hydrogen sulfide, sulfur dioxide, oxide containing ammonia, or smoke such as any oil solvent, smoke, and dust.

Cabinet Fan Running Normally

Rainproof and Dust-Proof Measures

IEC IP 5.5 and adapts a special process for major components to increase their corrosion-proof capability

Environment parameters of OUT30 and OUT50 cabinet are same. Table 17 lists environment parameters for OUT30 and OUT50 cabinet.

T AB L E 17 – EN V I R O N M E N T P AR AM E T E R S O F OUT30 AN D OUT50

Name Description

Operating Voltage 220 ± 10% V AC

Operating Temperature -35ºC ~ 45ºC

Electromagnetic Interference

Field intensity <= 140 dB V/m, the frequency range is 0.01 MHz ~ 1,10,000 MHz.

Indoor Cabinet

Outdoor Cabinet



Name Description

Atmospheric Pressure 1.08 * 105 Pa to 5.1 * 104 Pa

Relative Humidity Level 5% ~ 90%

Power Consumption 150 W

Usability >=99.999%

Whole Year Outage <=5.3 minutes

Continuous Operational time in a year (MTBF)

69,000 hours

Storage Battery 12 V and 100 AH

Industry Standards

Table 18 lists the industry standards.

T AB L E 18 – I N D U S T R Y S T AN D AR D S

Standard No. Standard Name

GB/T 6879 -1995

Performance and test methods of 30 channels Pulse Code Modulation (PCM) multiplex equipment at 2048 kbps

GB 7611-1987 Parameters of the digital interface for PCM systems over telecommunication networks

GB 4798.1-86 Environmental conditions existing in the application of electric and electronic products

GB4798.2 84 Environmental conditions existing in the application of electric and electronic products

GJB/Z 35 Derating criteria for electrical and electromechanical parts

GJB 4500-88 General introduction for reliability of research and production of equipment

GJB/Z 299A-91 Reliability prediction manual for electronic equipment



International Standards

Table 19 lists the international standards.

T AB L E 19 – I N T E R N AT I O N AL S T AN D AR D S

Standard No.

Standard Name

ITU-T G.711 (1988)

Pulse Code Modulation (PCM) of voice frequencies

ITU-T G.723.1 (1996)

Speech coders – Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 Kbps.

ITU-T G.729 (1996)

Coding of speech at 8 Kbps using Conjugate Structure Algebraic Code Excited Linear Predictions (CSACELP).

ITU-T H.248 (2000)

Gateway Control Protocol (GCP)

ITU-T G.168 (2004)

Echo cancellers

ITU-T G.165 (1993)

Digital network echo cancellers

ITU-T E.180/Q.35

Technical characteristics of tones for the telephone service

ITU-T Q.23 (1998)

Technical features of push-button telephone sets

ITU-T G.131 (2003)

Talker echo and its control

ITU-T T.30 (1998)

Procedures for document facsimile transmission in the general switched telephone network

ITU-T T.38 (1998)

Procedures for real-time Group 3 facsimile communication over IP networks

ITU-T T4 (2003)

Standardization of Group 3 facsimile terminals for document transmission

ITU-T V.17 (1991)

A 2-wire modem for facsimile applications with rates up to 14400 Bits/sec.

ITU-T V.21 (1988)

300 Bits/per sec duplex modem standardized for use in the general switched telephone network.

ITU-T V.152 (2005)

Procedures for supporting voice-band data over IP networks

IEEE 802.2/3 Logical Link Control/CSMA/CD (ETHERNET)

RFC 0768 User Datagram Protocol (UDP)

RFC 0791 Internet Protocol (IP)

RFC 0792 Internet Control Message Protocol (ICMP)



Standard No.

Standard Name

RFC 0793 Transmission Control Protocol (TCP)

RFC 0796 Address mappings

RFC 0854 Telnet protocol specification

RFC 0855 Telnet option specifications

RFC 0858 Telnet suppress go ahead option

RFC 0894 Standard for the transmission of IP datagram over Ethernet networks

RFC 0896 Congestion control in IP/TCP internet works

RFC 1155 Structure and identification of management information for TCP/IP-based internets

RFC 1157 Simple Network Management Protocol (SNMP)

RFC 1213 Management Information Base (MIB) for network management of TCP/IP-based internets: MIB-II

RFC 1242 Benchmarking terminology for network interconnection devices

RFC 1254 Gateway congestion control survey

RFC 1256 ICMP router discovery messages

RFC 148 Comments on RFC 123

RFC 1493 Definitions of managed objects for bridges

RFC 1889 RTP: A transport protocol for real-time applications

RFC 1890 RTP Profile for audio and video conferences with minimal control

RFC 1901 Introduction to community-based SNMPv2

RFC 1902 Structure of management information for Version 2 of the Simple Network Management Protocol (SNMPv2)

RFC 1903 Textual conventions for Version 2 of the Simple Network Management Protocol (SNMPv2)

RFC 1904 Conformance statements for Version 2 of the Simple Network Management Protocol (SNMPv2)

RFC 1905 Protocol operations for Version 2 of the Simple Network Management Protocol (SNMPv2)

RFC 1906 Transport mappings for Version 2 of the Simple Network Management Protocol (SNMPv2)

RFC 1907 Management Information Base (MIB) for Version 2 of the Simple Network Management Protocol (SNMPv2)

RFC 2285 Benchmarking terminology for LAN switching devices

RFC 2515 Definitions of managed objects for ATM management

RFC 2662 Definitions of managed objects for ADSL lines

RFC 2665 Definitions of managed objects for Ethernet like interface types



Standard No.

Standard Name

RFC 2805 Media Gateway Control Protocol (MGCP) architecture and requirements

RFC 2863 Interfaces group MIB

RFC 2907 Management Information Base (MIB) for Version 2 of the Simple Network Management Protocol (SNMPv2)

RFC 2933 Internet Group Management Protocol (IGCMP) MIB

RFC 2960 Stream Control Transmission Protocol (SCTP)

RFC 3015 Megaco Protocol Version 1.0

RFC 3057 ISDN Q.921 user adaptation layer

RFC 3435/RFC 3660

Media Gateway Control Protocol (MGCP) Version 1.0 basic Media Gateway Control Protocol (MGCP) packages

ANSI/IEEE Std 802.1D 1998

Edition Media Access Control (MAC) bridge

ITU-T G.703 Physical/electrical features of hierarchical digital interfaces

ITU-T G.704 Synchronous frame structures used at 1544, 6312, 2048, 8448 and 44,736 Kbps hierarchical levels

ITU-T G.960 Access digital section for ISDN basic rate access

ITU-T G.961 Digital transmission system on metallic local lines for ISDN basic rate access

ITU-T G0.962 Access digital section for ISDN primary rate at 2048 Kbps

ITU-T I.430 Basic user network interface - Layer 1 specification

ITU-T Q.920 (1993)

ISDN user network interface data link layer – General aspects

ITU-T Q.921 ISDN user network interface - Data link layer specification

ITU-T Q.931 ISDN user network interface Layer 3 specification for basic call control

ITU-T G.810 (1996.8)

Definitions and terminology for synchronization networks

ITU-T G.823 (2000.3)

Control of jitter and wander within digital networks that are based on the 2048 Kbps hierarchy

ITU-T G.828 (2000.3)

Error performance parameters and objectives for international, constant bit rate synchronous digital paths

IEEE Std 802.1Q 1998

Virtual bridged LAN

IEEE Std 802.2 1998

Logic link control



Standard No.

Standard Name

IEEE Std 802.3 2000 Edition

Edition Carrier Sense Multiple Access with Collision Detection (CSMA/CD) access method and physical layer specifications

IEEE Std 802.3ab 1999

Physical layer parameters and specifications for 1000 Mbps operation over 4--Pair of category 5 balanced copper cabling, type 1000BaseT

IEEE 802.3x Full duplex and flow control on 10BaseT and 100BaseT ports

IEEE 802.3u 100BaseTX and 100BaseFX specification

IEEE 802.3z 1000BaseX specification

National Standards

Table 20 lists the national standards.

T AB L E 20 – NAT I O N AL S T AN D AR D S

Standard No. Standard Name

YD/T1033 2000

Index series of transmission performance

YD/T1011 1999

Technical requirements and test methods for slave clock equipment of independent nodes on digital synchronous networks

YD/T1012 1999

Clock series of digital synchronous network nodes and their timing features

YD/T 1292-2003

Technical specification for media gateway control protocol based on H.248

YD/T1099 2001

Technical specification for gigabit Ethernet switch devices

YD/T1141 2001

Test methods for gigabit Ethernet switches

YD/T1160 2001

Technical requirements for access networks

YD/T 1243.3-2002

Technical specification for media gateway equipment-integrated access media gateway

GF 002 9002 General technical specification for the telephone switching equipment issued by the ministry of posts and telecommunications


C h a p t e r 3

Service Functions

This chapter covers the following topics: Introduction

Narrowband Services

Broadband Services

Introduction ZXMSG 5200 fully supports narrowband voice, data access at different rates, and broadband access modes such as xDSL. It meets subscriber demands and provides customized services according to different telecommunication service demands and customer groups. It provides the subscribers with voice services and real broadband/narrowband integrated access solutions that are smoothly compatible with data services and broadband services.

ZXMSG 5200 system main features are as follows:

Supports advanced services including existing and new ones.

The bandwidth can be flexibly allocated between different types of services.

Service management and service control of subscribers is smooth.

Provides superior subscriber scalability.

Compatible with the existing networks, including IP networks, PSTN networks, DDN/FR and ATM networks.

Supports multicast.

Supports QoS for different services.

Supports data service burst characteristics.

Introduction

Features



Narrowband Services Narrowband Services include:

V5-PSTN Service

V5-ISDN Service

VOIP-PSTN Service

VOIP-ISDN Service

Fax Service over IP

V5-PSTN Service

ZXMSG 5200 supports analog subscriber’s access and subscriber side switches. The subscriber signaling is Dual Tone Multi-Frequency (DTMF) signals or line status signals. ZXMSG 5200 supports direct subscriber access (when a subscriber switch is used), thus posing no special restriction on the supplementary services.

Figure 9 shows the flow of PSTN service though V5 interface.

F I G U R E 9 – PSTN AC C E S S

V5-ISDN Service

ZXMSG 5200 provides ISDN service through V5 interface. It has restrictions neither on bearer and supplementary services of B channel nor packet and supplementary services of D channel. In case where the ZXMSG 5200 convergence service is not adopted, a V5 interface is used between a switch and ZXMSG 5200 to access the ISDN subscribers directly to the switch.

Figure 10 shows the flow of ISDN service though V5 interface.

Functions

Network Diagram

Functions

Network Diagram

Chapter 3 Service Functions


F I G U R E 10 – ISDN S E R V I C E AC C E S S

ZV5

LE

ZXMSG 5200

2B+D

30B+D

VOIP-PSTN Service

ZXMSG 5200 interconnects with SS and Stored Program Control (SPC) switch through H.248 and V5 protocol and provides various PSTN subscriber interfaces.

ZXMSG 5200 provides PSTN access via various ALC cards. It supports basic services such as Centrex and CID as well as various supplementary services under the coordination of SS.

ZXMSG 5200 uses three types of cards to provide public call access.

ALC

ALC card supports public call access. It supports 32 analog subscriber ports.

RALC

RALC card supports public call access. It supports 32 subscribers. It has a reverse polarity function.

FLC

FLC card supports public call access. Each FLC supports 16 subscribers. It provides 16 KC/12 KC pulse control function. It supports remote subscriber access.

VOIP-ISDN Service

ZXMSG 5200 provides ISDN BRA (2B+D) and (30B+D) access (via the DLC card). It supports all ISDN services, including videotext, fax, and internet access, as well as multiple ISDN supplementary services under coordination of SS.

Each DLCC digital subscriber card supports eight ISDN subscribers. When accessing to upper layer NGN, ZXMSG 5200 supports H.248 and IUA protocols. ZXMSG 5200 interacts with SS controller via H.248 and IUA protocol messages to perform ISDN calls.

Introduction

Functions

Public Call Access

Introduction

Functions



Fax Service over IP

The ZXMSG 5200 system supports T.38 relay mode and T.30 VBD mode. It uses SoftSwitch (SS) to select or convert fax function.

SS controls connection services for a media gateway and/or local IP endpoints. It indicates whether the system is switched over to fax mode. Access Gateway (AG) equipment does not switch automatically to the fax mode. It only reports the fax tone to SS.

Figure 11 shows IP fax service access in T.30 VBD mode.

F I G U R E 11 – IP F AX S E R V I C E AC C E S S I N T .30 VBD M O D E

Figure 12 shows IP fax service access in T.38 Relay mode.



F I G U R E 12 – IP F AX S E R V I C E AC C E S S I N T .38 F AX M O D E

Broadband Services Broadband Services include:

ADSL Service

ADSL2+ Service

VDSL Service

SHDSL Service

Ethernet Service

VLAN Service

Multicast Service

EPON Service

QoS Service

IPTV Service

ADSL Service

ADSL technology is asymmetric. It allows more downstream bandwidth from central office to customer site than upstream. Asymmetry, combined with always-on access (eliminating the call setup), makes ADSL ideal for internet/intranet surfing, video-on-demand, and remote LAN access. These application users can download much more information than they upload.

Introduction



ADSL rates expand existing access capacity by a factor of 50 or more without new cabling. ADSL can literally transform the existing public information network from one limited to voice, text, and low-resolution graphics to a powerful system capable of bringing multimedia, including full motion video to every home.

Figure 13 shows ADSL frequency channel allocation.

F I G U R E 13 – FR E Q U E N C Y CH AN N E L AL L O C AT I O N

POTSUpstream Channel Downstream Channel

4kHz 138kHz 1.104M Hz30kHz

P( f)

f

ADSL features are as follows:

ANSI T1.413 issue 2, ITU-T G.992.1, ITU-T G.992.2, ITU-T G.996.1, ITU-T G.992.3, and ITU-T G.992.5 standards.

Discrete Multi-Tone (DMT) modulation mode.

Frequency Division Multiplexing (FDM) mode.

Asymmetric transmission mode. The uplink rate is 1 Mbps and downlink rate is 8 or 9 Mbps.

ADSL automatically adjusts data rate upon the line condition while initialization.

ADSL line query and configuration parameters include uplink/downlink rate, noise tolerance, output power, and line attenuation.

ADSL obtain bits quantity at each sub-carrier side.

Online loading function for programmable apparatus and card software.

Remote maintenance and remote software upgrade.

Line alarm maintenance and message report function.

Each ADSL interface supports eight PVC connections.

Functions

Frequency Allocation

Features



ADSL2+ Service

ADSL2+ is a new generation of ADSL broadband service access technology. It doubles the bandwidth used to carry downstream data.

ADSL2+ provides 24 Mbps downstream and 1 Mbps upstream. ADSL2+ uses high frequency up to 2.2 MHz. ADSL2+ applies to transmission with asymmetric rate. It delivers speed up to 20 times faster than the typical broadband services over copper line networks. ZXMSG 5200 provides ADSL 2+ service.

Figure 14 shows ADSL2+ frequency channel allocation.

F I G U R E 14 – ADSL2+ FR E Q U E N C Y C H AN N E L AL L O C AT I O N

POTSUpstream Channel Downstream Channel

4kHz 2.2 MHz

P ( f )

f

0.14 MHz

ADSL2+ features are as follows:

Operation modes

Higher rate

Longer transmission distance

Lower power consumption

Stable running and frequency compatibility

Line diagnosis function

Better networking

ADSL2+ supports three operation modes.

annex A:

This mode uses ADSL over POTS, with POTS service on same lines pair.

annex B:

This mode uses ADSL over ISDN, with ISDN service on same lines pair.

annex C:

This ADSL service works with TCM-ISDN interference.

Introduction

Functions


Features

Operation Modes



Besides the above three modes, ADSL2+ also supports following three modes below. Frequency band is further divided into smaller sub-bands.

annex I:

It is compatible to complete digital mode of ADSL over POTS (annex A) frequency spectrum. The available uplink band can be expanded from 3 kHz to 138 kHz if there is no POTS service on line. It supports 31 sub-bands at the maximum. The maximum uplink rate exceeds 1 Mbps.

annex J:

It is compatible to the complete digital mode of ADSL over ISDN (annex B) frequency spectrum. The available uplink band can be expanded from 3 kHz to 276 kHz if there is no ISDN service on the line. It supports 64 sub-bands at the maximum. The utmost uplink rate reaches to 2.3 Mbps.

annex M:

It is ADSL over POTS with the expanded uplink bandwidth. The uplink sub-band starts from 6. The sub-bands end at 32, 36, 40, 44 to 63 according to different bandwidth requirements. The total transmission power keeps the same, only the sub-band distribution is different. In this way, 3 Mbps uplink rate is available. For the downlink, the frequency is overlap and non-overlap similar to annex B.

Compared with ADSL, ADSL2+ supports higher rate, wider frequency and more sub-bands (512 sub-bands). The maximum downlink rate can reach to 24 Mbps. If ADSL2 annex J is used, the uplink rate is increased to 2.3 Mbps.

ADSL2+ supports longer transmission distance. For ADSL, the longest transmission distance is less than 6 km. For ADSL2+, the longest transmission distance is 6.5 km.

ADSL2+ provides power management function as follows:

Reduce the noise tolerance beyond requirements by decreasing transmission power consumption. Decrease useless power consumption on precondition of ensuring stable operation.

Add the low consumption mode L2 mode. Decrease the transmission power consumption in case that no subscriber data is transmitted. Ensure the necessary power consumption for transmitting required management message and synchronous signal. Resume the power consumption when subscriber data transmits. The power consumption of MSAG 5200 is about 30% of that in usual operation when it is running in L2 mode.

The central office (CO) and customer premises equipment (CPE) of ADSL2+ has the power cut back function. The power attenuation ranges from 0 dB to 40 dB. The transmission power consumption can be effectively cut down

Higher Rate

Longer Transmission

Distance

Low Power Consumption



when the transmission power is too large, ensuring the normal receiving of data.

ADSL2+ has more stable running and frequency compatibilities, which are as follows:

Receiver decides carrier sequence and pilot tone upon the channel analysis. Its results can truly reflect the channel situation and select the best tone as pilot which is useful to stable ADSL connection.

The receiver can test RFI distribution by RFI closing tone channels or controls the transmit power of tone through CO-MIB. It effectively avoids RFI and reduces the interference on ambient devices.

Fine dynamic adaptability.

The bit swapping and line rate changes dynamically enhancing the adaptability to changeable line parameters.

Less time to resume connection from faults.

ADSL2+ supports test function at both ends. The following parameter can be tested:

Line transmission feature

Background noise power spectrum

Signal-noise ratio of each sub-band

Noise tolerance and bearable bits of each sub-band

Based on different functions, ADSL2+ classifies ADSL transceivers into TPS-TC (transmission protocol related convergence sub-layer), PMS-TC (physical medium related convergence sub-layer), PMD (physical medium related sub-layer), and MPS-TC (management protocol related convergence sub-layer, used for NM interface). Encapsulating each sub-layer and defining the message among sub-layers helps implementing networking of various devices from different factories.

VDSL Service

VDSL (Very High Speed Digital Subscriber Line) provides high-bandwidth access, applying to the transmission with symmetric rate and asymmetric rate. VDSL transmits high-speed data through the existing subscriber telephone line. It provides voice, video and data through multimedia network.

VDSL transmits voice and data service simultaneously on the same subscriber line with the Frequency Division Multiplexing (FDM) mode. At the both ends of subscriber lines, splitter separates the voice signal from the data signal. The VDSL band is independent of POTS service band, therefore has no influence on POTS service and network distribution. VDSL band is divided into the uplink band and the downlink band. In addition, it has a

Stable Running and Frequency

Compatibility

Line Diagnosis Function

Better Networking

Introduction

Functions



certain protection band, effectively avoiding the band of amateur broadcasting station.

Figure 15 shows VDSL frequency allocation channel over POTS.

F I G U R E 15 – VDSL FR E Q U E N C Y C H AN N E L AL L O C AT I O N O V E R POTS

Low-frequencychannel

Uplinkchannel Downlink channel

900kHz 3.4MHz 7.5MHz

P(f)

4MHz

f

The VDSL features are as follows:

The transmission distance can reach to 3.5 km.

Downlink transmission rate of 52 Mbps and 3 Mbps for uplink in asymmetric mode and 16.7 Mbps in symmetric mode.

DMT (Discrete Multi-Tone) modulation mode.

FDM (Frequency Division Multiplexing) uplink/downlink band division mode.

Transmission mode can be symmetric or asymmetric.

Automatically adjusts rate upon the line condition while initialization.

Queries and configures parameters of VDSL line, including uplink/downlink rate, noise tolerance, output power, and line attenuation.

Line alarm maintenance and message report function.

ETSI TS 101270-2 V1.1.1 (Feb. 2002), ITU-T (G.993.1, Oct. 26, 2001), YD/T 1239-2002 (AN Requirement) are VDSL standards compliant with industrial and international standards.

SHDSL Service

SHDSL technology provides high-speed symmetric data service on a single pair or two pairs of twisted pairs. SHDSL technology can transport data symmetrically at data rates from 192 Kbps to 2,320 Kbps or 2.3 Mbps. SHDSL utilizes a single copper wire pair, making it an affordable DSL option attractive to small businesses.

ZXMSG 5200 also provides SDL card to support the SHDSL (based on ATM). Each SDL card provides 16 SHDSL ports. Subscriber information is converted into IP packets to transmit


Features

Introduction

Functions



over an IP network. They are connected to the uplink via the ZXMSG 5200 FE/GE interfaces.

SHDSL features are as follows:

SHDSL supports symmetrical data across a single pair of copper wire at data rates from 192 kbps to 2.3 Mbps or 384 kbps to 4.6 Mbps.

Maximum transmission distance is 3 km to 6 km.

ITU recommends G.991.2 and ANSI T1E1.4/2001-174 as SHDSL standards.

Ethernet Service

Ethernet service feature high bandwidth and less delay. Ethernet has survived as the major LAN technology (it is currently used for approximately 85 percent of the world's LAN-connected PCs and workstations).

Ethernet is used for UTP-5 medium-based 100BaseTx Ethernet equipment access.

Ethernet refers to a Local Area Network (LAN) family. IEEE 802.3 is Ethernet compliant standard that defines CSMA/CD protocol. Ethernet twisted-pair cable defines four data rates for operation as listed below:

10 Mbps Ethernet

100 Mbps Fast Ethernet

1000 Mbps Gigabit Ethernet

10,000 Mbps Gigabit Ethernet

Ethernet features are as follows:

Transmission distance less than 100 m

Easy to implement and manage

Low cost for network implementation

More flexible for network installation than the other technology.

VLAN Service

Virtual Local Area Network (VLAN) creates virtual workgroups by dividing LAN logically, not physically, into different network segments. VLAN is a broadcast domain. LAN and routers limit broadcasts to the domain of origin.

Virtual Local Area Network (VLAN) is established on the switching technology. VLAN sends data ‘intentionally’ through the switch and divides logical subnets flexibly while the

Features

Introduction

Functions

Standards

Features

Introduction

Functions



traditional LAN restricts the sites to its physical network. Figure 16 shows the basic VLAN adds another tag to the normal Ethernet frame.

F I G U R E 16 – VL AN C O N C E P T

The communications between VLANs are through access and trunk link.

Access link:

An access link is a member of only one VLAN. In most case, access link is linked with the client station.

Trunk link:

Trunk link is also called Tagged Link, This kind of port can support multi-VLAN communication. A trunk link is capable of carrying multiple VLANs. The data frames on the trunk link are identified by using indicator.

Explicit and implicit tag:

When frames are transmitted on network, a mean is required to identify the VLAN to which a frame belongs. The mean is to add VLAN tags. Switch sends the frame only to its belonging VLAN. When a bridge receives data, it labels the data with a VLAN tag to indicate the data source. This tag is called explicit tag. Implicit tag mode is used for specific VLAN source for the data. With implicit tag, data is not tagged and source VLAN of data is specified in other modes (for example the port).

Tag header:

The frame with a tag is called a tag frame, it has a tag header. Figure 17 shows the tag header format, including two-byte Tag Protocol Identifier (TPID) and two-byte Tag

Communication

VLAN Tag



Control Information (TCI). The TPID indicates a tag header. The TCI includes subscriber priority, Canonical Format Indicator (CFI) and VLAN ID. The 3-bit subscriber priority is in a scale of 8, where 0 is the lowest and 7 the highest. The CFI bit indicates whether the MAC address in the MAC data field is a standard format, where CFI=0 indicates standard format, while CFI=1 indicates non-standard formats. The VID field indicates the VLAN ID to which the frame belongs, and has a maximum number of 4095.

F I G U R E 17 – T AG H E AD E R FO R M AT

CFI VID

VID

TPID(Tag Protocol Identifier)

Priority

Two-byte TPID

Two-byte TCI

VLAN ID and PVID description:

VLAN ID:

Indicates the VLAN identifier, such as VLAN 1 and VLAN 2.

PVID:

Indicates the default port’s VLAN ID. When the received frame is tagged, the PVID does not take effect because the VLAN ID is contained in the tag. When the received frame is not tagged, the PVID takes effect and is used as VLAN ID. Therefore, when the received frame is not tagged, PVID is configured in VLAN port configuration.

ZXMSG 5200 supports the following VLAN features:

VLAN based on IEEE 802.1Q:

The IEEE 802.1Q standards define an operation called tagging, that binds a 4-byte tag domain to destination and source addresses of an Ethernet frame. This tag domain includes a VLAN identity called VLAN ID. ‘VLAN based on IEEE 802.1Q’ means distinguishing between VLANs according to the VLAN ID marked in an Ethernet frame and is generally used when there are multiple VLANs cross multiple devices. ZXMSG 5200 system supports identification of tagged messages and tagging of non-tagged messages. Figure 18 shows the tag 802.1Q identification method.

VLAN ID and PVID

VLAN Based Functions



F I G U R E 18 – 8021 .Q I D E N T I F I C AT I O N M E T H O D S

VLAN trunking:

The VLANs can communicate with each other via the trunking connection between the two switches using the router. It allows multiple VLANs on one port or a group of ports. It allows a single network adapter to behave as ‘n’ number of virtual network adapters. ‘n’ has a theoretical upper limit of 4096 but is typically limited to 1000 VLAN network segments.

To implement VLAN trunking different 802.1Q tags are affix to the same port or same group of ports. The messages of different VLANs are identified and VLAN interconnection is possible.

SVLAN:

SVLAN solves the 4096 VLAN limitation. It allows a stack of two or more 802.1Q headers to be carried in an Ethernet frame. The number of VLANs is extended to more than 16 million (4096 * 4096). At the same time multiple VLANs can be multiplexed within a single core VLAN (the top .1Q tag).

Spanning Tree expansion allows fast convergence (in the order of 1 sec). However, SVLANs only provide a partial solution. If customers are given the option to define their own VLAN ID spaces, the core of the network remains limited to 4096 VLANs. Figure 19 explains the SVLAN concept.



F I G U R E 19 – SVLAN C O N C E P T

Multicast Service

Multicast refers to point-to-multipoint communication in the network. The multicast technology implements the point-to-multipoint effective data transmission in the network. The core of multicast technology is to copy the packet as close to receiver as possible.

Source host just sends one data frame whose destination address is address of the multicast group. All receivers in the multicast group can receive same data frame copy. Other hosts in network cannot receive the data except host (destination host) in the multicast group. The multicast group is identified with Type D IP address (224.0.0.0 ~ 239.255.255.255).

Multicast features are as follows:

Lightens the server load. Server does not need to process request of each subscriber.

Saves the network bandwidth.

Minimizes the network equipment requirements.

Multiple subscribers can access same service.

ZXMSG 5200 system supports following modes:

IGMP (Internet Group Management Protocol) Snooping

IGMP Proxy

IGMP Router

Introduction

Functions

Features

Multicast Modes



In Snooping mode, the system is not responsible for management on status of multicast member. It just implements IGMP message snooping and forwarding passively. It has a little influence on the system load. However, it greatly increases protocol processing load of the uplink equipment.

In Proxy mode, the system manages status of multicast member actively, efficiently reducing the protocol load of the uplink device.

Router mode is a simplified proxy mode. In case that multicast service is directly sent to the uplink port, the system does not require uplink port for multicast service dynamically.

EPON Service

EPON (Ethernet Passive Optical Network) is combination of some optimal technologies and network architectures. Video on demand and other ‘triple-play’ services of video, voice and data require the provision of high bandwidth residential services directly to consumers. Passive Optical Networks are the next step beyond DSL and cable modems, delivering very high-speed services to consumers over an all-optical access network.

EPON provides following functions:

EPON function card provides fiber access based on EPON technology.

Single PON port supports 32 branches (20 KM) and 64 branches (<5 KM).

Downlink wavelength is 1490 nm, uplink wavelength is 1310 nm and CATV wavelength is 1550 nm.

VoIP services, CATV services, IPTV multicast services, high quality broadband, and multi-service access for residential subscribers.

It also meets fiber-to-the-home (FTTH) broadband service requirements to accomplish the ‘three-in-one’ target. FTTH greatly promotes development of the ‘digital home’ industry.

Figure 20 shows an EPON network.

F I G U R E 20 – EPON N E T W O R K

IGMP Snooping

IGMP Proxy

IGMP Router

Introduction

Functions

Network Diagram



EPON features are as follows:

Downlink rate can reach up to 1.25 Gbps. The uplink transmits data stream in Ethernet packet mode and reaches up to 1.25 Gbps.

Voice, data and video services.

Operation, maintenance and management functions

A typical EPON system consists of following parts:

OLT (Optical Line Terminal) is located in central office (CO).

ONU (Optical Network Unit) is located near NIU (network interface unit) or combined with NIU.

POS (Passive Optical Splitter) is a passive device connecting OLT and ONU. The function of POS is to distribute downlink data and collect uplink data.

QoS Service

Quality of Service (QoS) offers network service functions with different service qualities to meet various demands.

QoS uses following standards:

Flow classification

Traffic monitoring

Limited port rate

Queue

It means to identify packets and transmit them to different system devices for processing. Traffic identification with different priority features is based on the Type of Service (ToS) field in IP packet head. For example, classify packets based on information of data link layer, network layer, and transmission layer. This information includes MAC address, IP protocol type, source (host, network segment) address, destination (host, network segment), and port number of application program.

Traffic monitoring is used to monitor service flow according to classification rule at the packets receiving port. It enables service flow to adapt to the network resource allocated to it, such as bandwidth. Traffic monitoring is used for rate restriction on packets receiving port, monitoring traffic flowing to one network. If rate is too fast, traffic monitoring can discard packet or reset packet priority.

Limited port rate is used to monitor and restrict bandwidth occupied by service traffic at packet sending port. This technique enables service flow to adapt to network resource. For example limited port rate sets a rate threshold at sending port of packet.

Features

Introduction

QoS Standards

Flow Classification

Traffic Monitoring

Limited Port Rate



If traffic exceeds this rate, packets will be discarded. In this way, sending rate is limited.

Queue scheduling solves the problem that multiple packets compete for network resource when packets are forwarded. Queue scheduling modes include:

Strict-Priority queue (SP)

Weighted Round Robin (WRR)

Weighted Fair Queue (WFQ)

These algorithms solve packet forwarding problems in each output queue of device port according to their own principles. ZXMSG 5200 supports these three queue scheduling modes.

Traffic mirror is used to monitor service flows according to traffic classification rule. This traffic mirror copies data packets according to traffic classification rule to monitor port, facilitate network detection, and elimination faults.

IP Service

ZXMSG 5200 supports IP subscriber’s access and connects to the IP network directly.

Figure 21 shows the IP service access.

F I G U R E 21 – IP S E R V I C E AC C E S S

Queue Scheduling

Traffic Mirror

Introduction

Network Diagram


C h a p t e r 4

ZXMSG Networking

This chapter covers the following topics: ZXMSG 5200 Networking

ZXMSG Applications

ZXMSG 5200 Networking The ZXMSG 5200 is a media access gateway, which is located in the Next-Generation Network (NGN) and works with other media gateways.

Figure 22 shows the ZXMSG 5200 application in NGN.

F I G U R E 22 – ZXMSG 5200 I N NGN

IPZXMSG5200

POTS

xDSL

ISDN

H.248

MGC

H.248SG

TG

PSTN

A next-generation network uses the IP protocol as its foundation. The ZXMSG 5200 uses H.248 protocol to communicate with the Media Gateway Controller (MGC).

Multi-Service Access Network (MSAN) provides two interfaces at the network side, for broadband and narrowband services. Broadband services access the IP network through the Ethernet interface, while narrowband services access the narrowband service through the E1 interface.

Figure 23 shows the upgrade of ZXMSG 5200 from MSAN in a narrowband and broadband network.

MSG in NGN

Upgrading the Network from

MSAN to ZXMSG 5200



F I G U R E 23 – U P G R AD I N G N E T W O R K F R O M MSAN T O ZXMSG 5200

When the MSAN is upgraded to the ZXMSG 5200, E1 interface is replaced by a H.248 protocol. To convert the narrowband services into the IP packets for the transmission in IP network, a VOIP processor module and CNIC sub-card is added.

ZXMSG Applications IP Phone Networking

Figure 24 shows ZXMSG 5200 application in the IP Phone network.

F I G U R E 24 – ZXMSG 5200 AP P L I C AT I O N I N IP P H O N E N E T W O R K I N G

SS 1

MAN (IP/ ATM )

H. 248

SS 2

H. 248

Z

TGPSTN

modem

ADSL

Z

modem

ADSL

Interface 1 Interface 2

Residential area / ZXMSG 5200

Building / ZXMSG 5200

The ZXMSG 5200 is used at the end of the MAN. It provides various types of service and utilizes the high bandwidth resources of the MAN. It provides guaranteed voice quality in the MAN network.


A p p e n d i x A

Abbreviations

Abbreviation Full Name

ADSL Asymmetrical Digital Subscriber Line

AG Access Gateway

ALC Analog Line Card

AN Access Network

API Application Programming Interface

ATM Asynchronous Transfer Mode

BER Bit Error Ratio

BRI Basic Rate Interface

BSP Board Support Package

CCITT International Consultative Committee For Telephone and Telegraph

CCS7 No7 Common Channel Signaling

CDMA Code Division Multiple Access

CFI Canonical Format Indicator

CMIP Common Management Information Protocol

CO Central Office

CPE Customer Premises Equipment

CPU Center Process Unit

CSI Called Subscriber Identification

CSM CCS No7 Signaling Module

DCN Data Communication Network

DDN Digital Data Network

DHCP Dynamic Host Control Protocol

DIB Digital Interface Board

DLC Digital Line Circuit

DMT Discrete Multi-Tone




DSLC Digital Subscriber Line Circuit

DT Digital Trunk

DTE Data Terminal Equipment

DTM Digital Trunk Module

DTMF Dual Tone Multi-Frequency

EPM Environment Power Monitoring

EPON Ethernet Passive Optical Network

FDM Frequency Division Multiplexing

FTTB Fiber to the Building

FTTH Fiber to the Home

HDSL High-speed Digital Subscriber Line

HW High Way

IGMP Internet Group Management Protocol

ISDN Integrated Service Digital Network

ITU-T International Telecom Union-Telecommunication standardization

LAN Local Area Network

LE Local Exchange

MGC Media Gateway Controller

MGCP Media Gateway Control Protocol

MODEM Modulation-Demodulation

MSAN Multi-Service Access Network

NE Network Element

NGN Next Generation Network

OAM Operation, Administration & Maintenance

ODT Octal Digital Trunk

OLT Optical Line Terminal

ONU Optical Network Unit

OS Operation System

OSS Operation Support Subsystem

OW Order Wire

PCM Pulse Code Modulation

PRI Primary Rate Interface

PSPDN Packet Switched Public Data Network

PSTN Public Switch Telephone Network

QoS Quality of Service

RTP Real-time Transport Protocol

Appendix A Abbreviations



SHDSL Single-Pair High Digital Subscriber Line

SLC Subscriber Line Circuit

SNI Service Network Interface

SPC Stored Program Control

SS SoftSwitch

SYC Synchronization Control

TCI Tag Control Information

TMS Tornado for Managed Switches

ToS Type of Service

TPID Tag Protocol Identifier

TSLC Test Subscriber Line Card

UNI User Network Interface

VDSL Very High Speed Digital Subscriber Line

VOD Video On Demand

VoIP Voice over Internet Protocol

VPN Virtual Private Network





Figures

Figure 1 – ZXMSG 5200 Working Principle..............................2 Figure 2 – ZXMSG 5200 Software Structure ...........................3 Figure 3 – ZXMSG 5200 Hardware Structure ..........................4 Figure 4 – Sub-Modules.......................................................8 Figure 5 – Standard Shelf (Single Power) Configuration Table . 15 Figure 6 – Dual Power Standard Shelf Configuration Table...... 15 Figure 7 – OUT50C Shelf Structure...................................... 16 Figure 8 – OUT50D Shelf Structure ..................................... 16 Figure 9 – PSTN Access ..................................................... 30 Figure 10 – ISDN Service Access ........................................ 31 Figure 11 – IP Fax Service Access in T.30 VBD mode ............. 32 Figure 12 – IP Fax Service Access in T.38 Fax Mode .............. 33 Figure 13 – Frequency Channel Allocation ............................ 34 Figure 14 – ADSL2+ Frequency Channel Allocation................ 35 Figure 15 – VDSL Frequency Channel Allocation over POTS .... 38 Figure 16 – VLAN Concept ................................................. 40 Figure 17 – Tag Header Format .......................................... 41 Figure 18 – 8021.Q Identification Methods ........................... 42 Figure 19 – SVLAN Concept ............................................... 43 Figure 20 – EPON Network................................................. 44 Figure 21 – IP Service Access............................................. 46 Figure 22 – ZXMSG 5200 in NGN ........................................ 47 Figure 23 – Upgrading Network from MSAN to ZXMSG 5200 ... 48 Figure 24 – ZXMSG 5200 Application in IP Phone Networking.. 48





Tables

Table 1 – Chapter Summary ............................................... ix Table 2 – Typographical Conventions.................................... xi Table 3 – Mouse Operation Conventions ............................... xi Table 4 – ZXMSG 5200 Cabinets......................................... 13 Table 5 – Control and Switching Cards................................. 17 Table 6 – Packet Processing and Resource Cards................... 18 Table 7 – Uplink Sub-cards ................................................ 18 Table 8 – Ethernet Cards ................................................... 19 Table 9 – Analog Line Cards............................................... 19 Table 10 – Digital Line Cards.............................................. 19 Table 11 – DSL Subscribers Cards....................................... 20 Table 12 – Integrated Voice Data Subscriber Cards ............... 20 Table 13 – Test Cards ....................................................... 20 Table 14 – Power Cards..................................................... 21 Table 15 – Other Cards ..................................................... 21 Table 16 – Environment Parameters.................................... 23 Table 17 – Environment Parameters of OUT30 and OUT50...... 23 Table 18 – Industry Standards ........................................... 24 Table 19 – International Standards ..................................... 25 Table 20 – National Standards............................................ 28





Index

ADSL Service......................33 ADSL2+ Service..................35 Analog Line Cards ...............19 Broadband Services.............33 Cabinet Environment

Parameters.....................23 Cabinets ............................13 Cards ................................17 Control and Switching Cards .17 Database Subsystem ...........11 Digital Line Card .................19 DSL Subscriber Cards ..........20 EPON Service .....................44 Ethernet Cards ...................19 Ethernet Service .................39 Fax over IP ........................32 Hardware Architecture ...........4 Industry Standards..............24 Integrated Line Card............20 Interfaces .................... 22, 27 International Standards .......25 Introduction ................... 1, 29 IP Phone Networking ...........48 IP Service ..........................46 Multicast Service.................43 Narrowband Services...........30

National Standards.............. 28 Operation Support Subsystem 7 Other Cards ....................... 21 Packet Processing and Resource

Cards ............................ 18 Power Cards....................... 20 Protocol Subsystem...............8 QoS Service ....................... 45 SHDSL Service ................... 38 Shelf................................. 14 Software Architecture............3 System Features...................5 System Functions .................6 System Hardware ............... 13 Technical Specifications ....... 22 Test Line Card .................... 20 Uplink Sub-cards ................ 18 V5-ISDN Service................. 30 V5-PSTN Service................. 30 VDSL Service ..................... 37 VLAN Service ..................... 39 VOIP-ISDN Service ............. 31 VOIP-PSTN Service ............. 31 Working Principle..................2 ZXMSG 5200 Networking ..... 47 ZXMSG Applications ............ 48

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