atcamsoftx3000 hardware introduction issue2.1

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HUAWEI TECHNOLOGIES CO., LTD. www.huawei.com HUAWEI Confidential Security Level: MSOFTX3000 Hardware Introduction

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ATCAMSOFTX3000 Hardware Introduction ISSUE2.1

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HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

HUAWEI Confidential

Security Level:

MSOFTX3000 Hardware Introduction

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 2

Objectives

Hardware configuration, types of buses and

their functions

Functions, external interfaces, cable

connection, and DIP setting of boards

Signal flow among boards

Cable configurations

Upon completion of this course, you will

understand:

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 3

Contents

Chapter 1 Overview

Chapter 2 Overall System

Chapter 3 Boards

Chapter 4 Signal Flow

Chapter 5 Cable Connection

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 4

Chapter 1 Overview

Section 1 Introduction to the Section 1 Introduction to the

MSOFTX3000MSOFTX3000

Section 2 Hardware Platform

Evolution

Section 3 OSTA2.0 Platform

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 5

Introduction to the MSOFTX3000Introduction to the MSOFTX3000The MSOFTX3000 provides functions such as location management, call control, and media gateway control. It can be flexibly deployed as the VMSC server, GMSC server, TMSC server, VLR, SSP, or STP.

MSOFTX3000 V2R8 is the basic version of the OSTA2.0 platform. It is upgraded from the OSTA1.0

platform without major changes in terms of product orientation, functions, and features.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 6

Chapter 1 Overview

Section 1 Introduction to the Section 1 Introduction to the

MSOFTX3000MSOFTX3000

Section 2 Hardware Platform Section 2 Hardware Platform

EvolutionEvolution

Section 3 OSTA2.0 Platform

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 7

CPCI Platform Structure

Centralized power supply: The UPWR supplies power for all boards in a subrack.

Dual CPCI (compact pci) buses (that is, resource-sharing buses A and B) with the bandwidth of 2×2Gbps

Ethernet dual-platform and dual-star architecture

Master and slave serial buses

H.110 bus, providing switching capability of 4096 timeslots and 256 Mbps bandwidth

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 8

Limitations of the CPCI Platform Low scalability

Complex bus types and limited bandwidth:

CPCI bus: 2 x 2 Gbps

H.110 bus: 256 Mbps

Ethernet bus: 24 x 100 Mbps (in spite of expansion) Limitations related to the power supply, structure, and heat dissipation: The maximum power consumption of

a single slot (50 W) constrains the performance improvement of boards. Not hot-swapping sub boards

Low reliability The bus structure has inherited faults and potential single-point failures, for example, centralized power

supply, CPCI bus, and master/slave serial bus The device control flow cannot be separated from the service flow. This may cause security problems.

Non-authentic Open Standard Platform Carrier-specific standard: Expanded with multiple private interfaces based on the original CPCI standard (for

example, Ethernet bus, H.110 bus, back board size, and main/slave serial port bus) No standard open software interface; tight coupling of hardware and software High lifecycle costs

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 9

ChallengesWith the development of the telecom industry, carriers are increasingly having higher requirements related

to telecom devices, especially in the following aspects:

Simplicity: The platform should be capable of simplifying the design, manufacture, test, and application of

network devices.

Capacity: The platform should provide sufficient bandwidth, call rate, processor loading rate, and operating

efficiency to meet the current and future requirements.

Performance: The platform should be capable of supporting short delay and call setup duration and providing

high service performance and QoS.

Reliability: The reliability of the platform should reach 0.99999.

Serviceability: The platform should be capable of providing simple, strong, and cost-saving OAM&P.

Security: The platform should be capable of protecting key services from being intercepted and against

Hacking.

Time to Market: Time to market for a new product should be shortened. (purchasing boards, subracks,

Middleware, and APIs from other vendors to reduce development workload)

Cost: Lifecycle costs should be reduced. (software and hardware architectures can ease the multiplexing among

different products and reduce development workload)

Regulatory Considerations: The platform should comply with international specification and standards.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 10

ATCA Specifications Advanced Telecommunications Compute Architecture (ATCA ) is the largest specification effort in the

history of the PCI Industrial Computer Manufacturers Group (PICMG), with more than 100 companies participating. It includes serials of specifications, for example, PICMG3.0, PICMG3.1, PICMG3.2, PICMG3.3, and PICMG3.4.

Sub-specifications:

3.1: Ethernet and Fiber channel Transport

3.2: Infini Band Transport

3.3 : Star Fabric Transport

3.4 : PCI Express Transport

3.5 : Advanced Fabric Interconnect / Serial Rapid IO

AMC module specification: hot swapping and sub board specification

The ATCA specification is developed based on the CPCI specification. It meets the new requirements of the telecom industry with the following features:

Dual -48 VDC redundancy power

High-speed differential signal connector and high bus bandwidth

Proper board size (8U x 280mm) and slot distance (1.2 inch) for ease of heat dissipation

Hot-swap high-speed subboards

Standard IPMI bus for the management of any parts in the system

Open software and hardware architecture with the CGL operating system

Compliance with the NEBS and ETSU standards

High reliability with the dual-star architecture for service buses

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 11

ATCA vs. CPCI

Attributes CPCI ATCA

Subrack size 9 U (height), 19“ (width) 13 U/14 U (height), 19“(width)

Board size 6 U x 160 mm x 0.8 inch 8 U x 280 mm x 1.2 inch

Board power 35 W-50 W 150 W-200 W

Backplane bandwidth 4 Gbps + 2.4 Gbps 2.4 Tbps (Full Mesh)

Number of slots 21 14

Power system Centralized power supply (5V, 12V,

3.3V)

Distributed power supply (Dual – 48

V/ - 60 VDC)

I/O Limited: FE Extensive: GE, FC, SCSI and so on

Subboard PMC, not hot-swap PMC & AMC (hot-swap)

Management OK IPMI specification

Clock/upgrade/test bus NO Yes

Regulatory Conformance Vendor specific In standard

Subrack costs Low High

Lifecycle costs High Low

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 12

Chapter 1 Overview

Section 1 Introduction to the Section 1 Introduction to the

MSOFTX3000MSOFTX3000

Section 2 Hardware Platform Section 2 Hardware Platform

EvolutionEvolution

Section 3 OSTA2.0 PlatformSection 3 OSTA2.0 Platform

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 13

ATCA System StructureIPMB bus

Blade0

Blade1

Blade2

Blade3

Blade4

Blade5

Blade8

Blade9

Blade10

Blade11

Blade12

Blade13

Switch 6

Base Fabric 0Fabric 1Fabric 2Fabric 3

Switch 7

Base Fabric 0Fabric 1Fabric 2Fabric 3

SMM

SMM

Fans

Cascade Switch Interfaces

SMM

Various flexible service interfaces

Base Fabric 0Fabric 1Fabric 2Fabric 3 Fabric 0Fabric 1Fabric 2Fabric 3BaseSDM

SDM

IPMB IPMB

IPMBIPMB

Cascade Switch Interfaces

Various flexible service interfaces

Fans

Base bus

Fabric bus

TDM bus

Two buses reserved for future use

Update bus

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 14

Enhanced Features of Huawei OSTA2.0 Platform

Huawei OSTA2.0 platform is developed according to the requirement of core network devices. The following enhanced features are implemented without making any changes to the ATCA architecture:

Carrier-grade design: providing carrier-grade components with low power consumption and high-reliability and redundancy design

Enhanced fault management: supporting pre-alerting, diagnosis, isolation, and recovery of fault management in terms of the system, modules, and chips

Supporting remote maintenance

Meeting the NEBS L3 / ETSI standards (Network equipment building system $ European telecommunication std instituate )

Providing a time precision module for precise charging

Providing a stratum-2 clock module

Providing built-in FC switching module and layer-2 and layer-3 switching module

Supporting subrack cascading to meet requirements for high capacity

Providing TDM interfaces, including E1/T1, STM-n, and ATM

Providing various access interfaces for storage devices, including the FC, SCSI(small computer interface), and SAS

Providing a built-in storage unit

Providing built-in routing function

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 15

System Buses

The OSTA2.0 hardware platform provides four types of buses:•IPMB•Base•Fabric•TDM

SMM

SDM

SMM

SDM

FAN FAN

PDBSerial

IPMB

BASE

FABRIC

SWU

SWI

SWU

SWI

TDM

UPB UPB UPB UPB UPB UPB UPB UPB UPB UPB UPB UPB

PEMPEM

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 16

Description of System Buses

The OSTA2.0 hardware platform provides four types of buses:

IPMB bus: It is the device management bus in an OSTA2.0 subrack. With the

IPMB bus, the SMM monitors and manages all the hardware in the subrack. The

IPMB bus transmits all the information related to the hardware, such as alarms,

power-on/power-off operations, and fan speed adjustment.

Base bus: It is located on the management and control plane of the system. It

provides a channel for software loading, alarm reporting, and maintenance

message delivery.

Fabric bus: It provides a data channel for the system service plane. It transmits

the service information of the system.

TDM bus: It is used to deliver the system clock source and the narrowband

timeslot information of bearer boards.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 17

Questions

Compared with the OSTA1.0 platform, what are

advantages of the OSTA2.0 platform?

How many types of buses are provided by the

MSOFTX3000 OSTA2.0 platform? What are the

corresponding functions of each type of bus?

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 18

AnswersCompared with the OSTA1.0 platform, what are advantages of the OSTA2.0 platform?1.Strong scalability, great bandwidth, high integrity, and abundant service interfaces

2.Dual-star bus and distributed power supply ensure higher security.

3.Compliance with standard specifications; lower lifecycle costs

How many types of buses are provided by the MSOFTX3000 OSTA2.0 platform? What are the corresponding functions of each type of bus? The OSTA2.0 hardware system provides four types of buses:

1.IPMB bus: It is the device management bus in the OSTA 2.0 subrack. With the IPMA bus, the SMM monitors and manages all the hardware in the subrack.

2.BASE bus: It is a management control plane bus of the system. It is g generally used for software loading, and transmission of the alarm and maintenance information.

3.FABRIC bus: It is the data channel of the service plane. It is generally used to transmit information related to services in the system.

4.TDM bus: It is used to transmit the information about the system synchronization clock and narrowband timeslots among bearer boards.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 19

Contents

Chapter 1 Overview

Chapter 2 Overall System

Chapter 3 Boards

Chapter 4 Signal Flow

Chapter 5 Cable Connection

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 20

Chapter 2 Overall System

Section 1 Cabinet

Section 2 Subrack

Section 3 PDB

Section 4 MRMU

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 21

Cabinet

The MSOFTX3000 uses the N68E-22 cabinet:

Dimensions: 600 x 800 x 2200 (width x depth x

height)

Available space inside: 46 U (1 U = 44.45 mm )

A maximum of three OSTA2.0 subracks

configured for each subrack

Weight: 100 kg (400 kg in full configuration)

Single-door providing the air filter, with the

perforated rate reaching 51%

Supporting up to 8 KW heat dissipation

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 22

Cabinet Configuration

MSOFTX3000 cabinets are classified into

integrated configuration cabinets and

service processing cabinets.

A cabinet is configured with a 3-U PDB that

supports the dual 3-input power supply and

dual 10-output power.

An integrated configuration cabinet can be

configured with two OSTA2.0 sub racks, two

LAN Switches (for external networking), one

KVMS (optional), and one MRMU master

rack monitoring unit(optional).

A service processing cabinet is configured

with up to three OSTA2.0 subrack.

MSOFTX3000 V2R8 supports two cabinet

and four subracks in full configuration, as

shown in the figure.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 23

Overall System Configuration

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 24

Chapter 2 Overall System

Section 1 Cabinet

Section 2 Subrack

Section 3 PDB

Section 4 MRMU

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 25

PDB

Supporting dual-input, dual 2-input, and dual 3-

input power supply (dual 3-input is used for the

MSOFTX3000)

Input voltage: -40 to -72 V DC; Maximum input

current: 100 A

Supporting the dual 10-output power supply,

with maximum current of 50 A for each output

(not more than 100 A for each zone)

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 26

PDB

1. Input terminal 2. Output terminal 3. DB15 serial port

4. Grounding point 5. RJ45 serial port 6. External Boolean

signal interface

Monitoring panel Air circuit breaker

Each PDB supports a maximum of four external Boolean alarm inputs.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 27

Power Switches that Control the Internal Components

Cabinet Switch Component

Integrated configuration cabinet

(A7 and A8) / (B7 and B8)

SUBRACK-1 (expansion subrack 1)

A2/B2 MRMU (master rack monitoring unit)

A3 LANS-1

B3 LANS-0

A1 KVMS

(A9 and A10) / ( B9 and B10 )

SUBRACK-0 (basic subrack 0)

Service

processing

cabinet

(A7 and A8 ) / ( B7 and B8)

SUBRACK-1 (expansion subrack 3)

(A9 and A10) / ( B9 and B10 )

SUBRACK-0 (expansion subrack 2)

Each sub rack is controlled by four switches.

Refer to the mapping between the switches

and components during the cable configuration

and power-on/power-off operation.

Master rack monitoring unit

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 28

Chapter 2 Overall System

Section 1 Cabinet

Section 2 PDB

Section 3 Subrack

Section 4 MRMU

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 29

OSTA2.0 Subrack

Design Standard Complies with NEBS GR-63-core and ETSI 300 019 CLASS 3.1 standards.

Dimension 619.5 mm (H) x 482.6 mm (W) x 450 mm (D)

Capacity Provides 14 service slots (1.2 inch per slot).

ArchitectureThe backplane is plugged in the middle with boards installed back to back (the sizes of front board and back board are different).

Cabling Cables are led out from the rear of the subrack.

Heat DissipationTwo fan boxes are located at the bottom of each subrack for front to back airflow.

Power Supply -40.5 V DC to -72 V DC

Temperature Long-term operation: 5 – 40 ; short-term operation: - 5 – 50 ℃ ℃ ℃ ℃

HumidityLong-term operation: 5% – 85% ; short-term operation: 5% – 90%

Fan box

Airflow path diagram

PEM

Front view Back view

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 30

Subrack Power

A subrack provides 1+1 redundancy power (-48V/-60V) through two PEMs. The boards in a subrack are divided into two areas, namely, area 1 (slots 0 through 6) and area 2 (slots 7 through 13). Each

PEM provides two power inputs for each area, and each power input is configured with air circuit breakers for the purpose of subrack-level delivery.

A front board works together with a back board and supplies power for the back board.

13 24

Area 1Area 2

DC power input for area 2

Blade0 ( Server)

Blade1 ( Server)

Blade6 ( Switch)

Blade7 ( Switch)

Blade8 ( Server)

Board13 ( Server)

AREA1

-48Va1/RTNa1( Feed A1)

-48Vb1/RTNb1( Feed B1)

-48Va2/RTNa2( Feed A2)

DC power input for area 1

SMM1

SMM2

FANS

-48Vb2/RTNb2( Feed B2)

4

1

2

3AREA2

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 31

Subrack Slots A subrack contains a middle-positioned backplane, with front boards and back boards installed back to back.

The back boards that function as the interface boards supply power for the front boards. One front board

works together with one back board. If a front board does not require a back interface, you need not

configure a back board for it.

A subrack provides 14 service slots, of which slots 6 and 7 are permanently used for SWUs and SWIs and

the other slots are used for UPBs and USIs.

Front board size: 355.6 mm (8 U) x 280 mm x 30.5 mm (1.2 in.)

Back board size: 355.6 mm (8 U) x 70 mm x 30.5 mm (1.2 in.)

8 U

280 mm

70 mm

UPB

USI

0

UPB

USI

1

UPB

USI

2

UPB

USI

3

UPB

USI

4

UPB

USI

5

SWU

SWI

6

SWU

SWI

7

UPB

USI

8

UPB

USI

9

UPB

USI

10

UPB

USI

11

BACK

FRONT

UPB

USI

12

UPB

USI

13

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 32

Board Configuration Samples0 1 2 3 4 5 6 7 8 9 10 11

BACK

FRONT

12 13

UPBA0

SWUA1

SWIA1

SWIA1

USIA1

UPBA0

USIA1

UPBA0

UPBA0

UPBA1

UPBA1

UPBA1

UPBA1

UPBA0

UPBA0

UPBA0

UPBA0

SWUA1

USIA7

USIA7

USIA1

USIA1

0 1 2 3 4 5 6 7 8 9 10 11

BACK

FRONT

12 13

UPBA0

SWUA0

SWIA0

SWIA0

USIA1

UPBA0

USIA1

UPBA0

UPBA0

UPBA1

UPBA1

UPBA1

UPBA1

UPBA0

UPBA0

UPBA0

UPBA0

SWUA0

USIA1

USIA1

USIA1

USIA1

Board configuration of subrack 0 in IP networking Board configuration of subrack 1 in IP networking

Board configuration of subrack 0 in TDM networking

0 1 2 3 4 5 6 7 8 9 10 11

BACK

FRONT

12 13

UPBA0

SWUA1

SWIA1

SWIA1

USIA1

UPBA0

USIA1

UPBA0

UPBA0

UPBA1

UPBA1

UPBA1

UPBA1

UPBA0

UPBA0

UPBA0

UPBA0

SWUA1

USIA7

USIA7

USIA1

USIA1

ETIA0

ETIA0

ETIA0

ETIA0

0 1 2 3 4 5 6 7 8 9 10 11

BACK

FRONT

12 13

UPBA0

SWUA1

SWIA0

SWIA0

USIA1

UPBA0

USIA1

UPBA0

UPBA0

UPBA1

UPBA1

UPBA1

UPBA1

UPBA0

UPBA0

UPBA0

UPBA0

SWUA1

USIA1

USIA1

USIA1

USIA1

Board configuration of subrack 1 in TDM networking

ETIA0

ETIA0

ETIA0

ETIA0

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 33

Chapter 2 Overall System

Section 1 Cabinet

Section 2 Subrack

Section 3 PDB

Section 4 MRMU

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 34

MRMU

SN. Description

1 Power ports

2 Detecting/control ports

3 Smoke sensor reset button

4 Serial communication ports

5 Ethernet portMRMU is short for Master Rack Monitoring Unit.

Provides a standard 10/100M Ethernet interface for communication with the NMS.

Provides two RS485(power) ports for managing eight PDBs and eight DC fan boxes or eight RMUs and eight AC fan boxes.

Provides one external interface for connecting to a temperature and humidity sensor that are used for monitoring the status of the

cabinet.

Reserves three types of optional analog monitoring interfaces for the sensors with voltage ranging 0 to 5 V and current ranging 4 mA

to 20m A. The type of interface can be specified by users.

Implements the smoke alarm, water alarm, and intrusion alarm functions by being connected to the corresponding external sensors.

Reserves eight interfaces for Boolean detection.

Reserves four interfaces for control variable output, where two interfaces are used for relay output and other two interfaces for

optical coupling output.

Supports audible alarms (buzzer) and visual alarms (alarm indicator).

Front view

Rear view

As an environment monitoring device, the MRMU is optional for the MSOFTX3000. It is configured only when the ambient

environment (such as equipment room temperature ) needs to be monitored or the PDB of a cabinet cannot provide

sufficient Boolean alarm interfaces.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 35

Questions

Which type of cabinet is used for the MSOFTX3000? How many types of cabinets are

there?

Integrated configuration cabinet & service processing cabinet

How many cabinets and sub racks are supported by the MSOFTX3000 in full

configuration?

2 cabinet & 4 sub racks

How many slots are provided by an OSTA2.0 sub rack of the MSOFTX3000? How many

slots are service slots?

14 are service slots

What are the power supply features of an OSTA2.0 sub rack of the MSOFTX3000?

Dual 3 input and 10 out puts power supplies

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 36

Answers

Which type of cabinet is used for the MSOFTX3000? How many types of cabinets are there?

The N68E-22 cabinet is used for the MSOFTX3000 . There are two types of cabinets. They are integrated configuration cabinet and service processing cabinet.

How many cabinets and subracks are supported by the MSOFTX3000 in full configuration?

Two cabinets and four subracks are supported by MSOFTX3000 in full configuration.

How many slots are provided by an OSTA2.0 subrack of the MSOFTX3000? How many slots are service slots?

A total of 14 slots are provided by an OSTA subrack. Among them, 12 slots are used as service slots.

What are the power supply features of an OSTA2.0 subrack of the MSOFTX3000?

An OSTA2.0 subrack supports area-based power supply and 1+1 redundancy power bus. The subrack provides two PEMs to implement 1+1 power supply. The boards in the subrack are divided into two areas. One area covers slots 0 through 6 and the other area covers slots 7 through 13. Each PEM provides two power inputs and each power input is responsible for each area

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 37

Contents

Chapter 1 Overview

Chapter 2 Overall System

Chapter 3 Boards

Chapter 4 Signal Flow

Chapter 5 Cable Connection

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 38

Chapter 3 Boards

Section 1 General Introduction

Section 2 Device Management

Module

Section 3 Switching Module

Section 4 Service Processing

Module

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 39

System Interconnection The MSOFTX3000 hardware is

composed of main components

and auxiliary components.

The main components are

composed of OSTA2.0

subracks, which work in self-

cascading mode.

In the ATCA platform, the

functionalities of the BAM,

iGWB, and XPTU are

implemented by boards and

integrated in a subrack. The

XPTU is deployed as a process

in the OMU board.

In the SOSM networking,

independent servers are

adopted for the BAM, iGWB,

and XPTU in a cabinet.

UPB

UPB

UPB

UPB

LMT

To the IP Backbone network

SMM

SWU

SWU

UPB

UPB

OMU

OMU

UPB

UPB

UPB

UPB

IGWB

IGWBSMM

SMM

SWU

SWU

UPB

UPB

UPB

IGWB

IGWB

UPB

UPB

UPB

UPB

UPB

UPB

UPB

SMM

SMM

SWU

SWU

UPB

UPB

UPB

IGWB

IGWB

UPB

UPB

UPB

UPB

UPB

SMM

0#

1#

2#

To the billing centerTo the billing Center

LMT LMT

To the network management center

LANSWITCH

HUB

To the NTP ServerTo the NTP Server

Host

To the IP Backbone network

To the billing CenterTo the billing Center

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 40

OSTA2.0 Logical Structure

Logically, the MSOFTX3000 is composed of: Equipment management subsystem, including SMMs and SDMs Switch subsystem, including SWUs and SWIs Service processing subsystem, including UPBs and USIs/ETIs Electromechanical subsystem, including backplane, fan box, and PEM

Back Plane

Service processing subsystem

SMM/SDM

Equipment managementsubsystem

Switch subsystem

IPMB

Base

Fabric

SWU/SWI SMM/SDM

SWU/SWI

Electromechanical subsystem

FAN

FAN

PEM

PEM

UP

B/U

SI/

ET

I

TDM

UP

B/U

SI/

ET

I

UP

B/U

SI/

ET

I

UP

B/U

SI/

ET

I

UP

B/U

SI/

ET

I

UP

B/U

SI/

ET

I

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 41

Chapter 3 Boards

Section 1 General Introduction

Section 2 Device Management

Module

Section 3 Switching Module

Section 4 Service Processing

Module

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 42

Device Management Module

The device management module

is composed of SMMs and SDMs.

They are located under the fan

box at the bottom of a subrack.

The device management module

manages all components of a

subrack and the PDB.SMM

SDM

SMM

SDM

FAN FAN

PDBSerial

UPB

USI orETI

UPB UPB UPB UPB UPB UPB UPB UPB UPB UPB UPB

SWU

SWI

SWU

SWI

IPMB

PEM PEM

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 43

SMM (1) SMM is short for shelf management module.

Features:

It manages all hardware components in a sub rack.

It implements device management, hot swapping management,

alarm management, log management, asset management, and

power management.

It supports the KVM over IP function.

Two SMMs reside at the bottom of a subrack. They work in

active/standby mode, 1+1 redundancy. Data synchronization

between the active and standby SMMs is implemented through

the dedicated IPMB and interface.

Interfaces:

The SMM provides 40 dual-star IPMB interfaces that are

connected to the backplane and then connected to BMC

modules of each board.

The SMM provides four 10/100MBase-T Ethernet interfaces.

Two interfaces are used to connect to the SWUs through the

backplane; one interface is used for status and data

synchronization between two SMMs.; one interface is used to

connect to the SMM panel.

The front panel of the SMM provides one RS232 serial port.

COM ETH0

RST HSW

SMMD

SHELF MANAGEMENT MODULE

(1) (2) (3) (4) (5) (6)

(10) (9) (8) (7)

SMM position in a subrack

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 44

SMM (2)

COM ETH0

RST HSW

SMMD

SHELF MANAGEMENT MODULE

(1) (2) (3) (4) (5) (6)

(10) (9) (8) (7)

1: Minor alarm indicator

2: Major alarm indicator

3: Critical alarm indicator

4: COM serial port

5: ETH0 interface

6: HOTSWAP indicator

7: Ejector lever

8: Reset button

9: Customized indicators

10: HEALTHY indicator

   

Indicator Color Meaning Description Normal State

HEALTHYRed or green

Healthy status

indicator

The HEALTHY indicator has four states:•Off: The SMM is not installed or powered on.•Steady green: The SMM works normally.•Flash green (at the frequency of 0.5 Hz): The SMM is in the standby state.•Steady red: The software is not started, or a hardware failure occurs.

Steady green

HOTSWAP BlueHot-

swapping indicator

The HOTSWAP indicator has four states:•Off: The SMM is running or is in the active state.•On: The SMM is powered off or the SMM is loading processes.•Fast blink: The SMM is being activated.•Slow blink: The SMM is being deactivated.

Off

Alarm indicator

Red

Minor,major, and

criticalalarm

indicators

The meanings of the three alarmindicators are as follows:•!: A minor alarm is generated.•!!: A major alarm is generated.•!!!: A critical alarm is generated.

Off

Customized indicator

Red or green

Customizedindicator

You can define the state and meaning of this indicator. -

Fast blink means that the indicator is on for 900 ms and off for 100 ms alternatively. Slow blink means that the indicator is on for 100 ms and off for 900 ms alternatively.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 45

SMM (3)

Status Description

Closed

Before the ejector lever is closed, the HOTSWAP indicator is on and the SMM is not powered on.After the ejector lever is closed, the HOTSWAP indicator is on. When the HOTSWAP indicator is off, the SMM works normally.

Open

Before the ejector lever is opened, the SMM works normally.After the ejector lever is opened, the HOTSWAP indicator changes to the slow blink state. When the HOTSWAP indicator is on, the SMM is powered off. You can use the ejector lever to remove the SMM.

The front panel of the SMM has a removable ejector lever. The ejector lever

helps to insert, remove, fasten, power on, and power off the SMM.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 46

SDM (1)

1: Ejector lever 2: HEALTHY indicator 3: ETH interface

4: COM2 5: COM1 6: DIP switch 

SDM is short for Shelf Data Module.

Features:

It records sub rack information such as the subrack name, bar code, vendor, and delivery date.

It provides the information for the SMM to manage all hardware in the system.

It is located at the rear and bottom of a sub rack and requires two slots. The SDM works in active/standby mode, and its front board is the SMM.

Interfaces:

One network interface and one RS232 serial port (COM1) used for operation and maintenance: These two interfaces function as the back interfaces for the SMM. They have the same function as the interfaces provided by the SMM, but provide two physical channels for the SMM. Therefore, these two interfaces cannot be used together with the interfaces provided by the SMM. 。

One RS485 serial port (COM2) used for maintaining and managing the PDB.

Indicators:1 2 3 4 6

COM2ETH COM1 FRAME I D

DI P ON

5

SDM position in a subrack

Indicator Color Meaning DescriptionNormal State

HEALTHY Red or green

Healthy status indicator

•Off: The SDM is notinstalled in the subrack.•Steady green: The SDMworks normally.•Steady red: The SDM isfaulty.

Steady green

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 47

SDM (2) An SDM(self data madule) provides one removable ejector lever. The ejector lever helps to

insert, remove, or fasten the SDM. It cannot be used to power on or power off the SDM. The

SDM is powered by either of the two SMMs.

The DIP switch is used to set the subrack

number.

Eight switches from left to right represent 8-

digit binary numbers, ranging from 00000000

to 11111111 and correspond to subrack

numbers 0 to 255.

Left switch is for the most significant bit and

right switch is for the least significant bit.

“ON” (bottom) for 1 and “OFF” (upper) for 0

1 2 3 4 5 6 7 8

ON:1

OFF:0

1 2 3 4 5 6 7 8

ON:1

OFF:0

Positions of the switches for subrack 1

Positions of the switches for subrack 128

Subrack No.

1 2 3 4 5 6 7 8

0 off off off off off off off off1 off off off off off off off on2 off off off off off off on off3 off off off off off off on on4 off off off off off on off off5 off off off off off on off on

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 48

Chapter 3 Boards

Section 1 General Introduction

Section 2 Device Management

Module

Section 3 Switching Module

Section 4 Service Processing

Module

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 49

Switch Module A switching module is composed of SWUs and SWIs, which

are located in slots 6 and 7.

The SWUs provide switching functions through the BASE

plane, Fabric GE plane, and TDM plane.

The SWIs provide external interfaces for implementing

cascading of the BASE plane and Fabric GE plane.

The cascading of the TDM platform is implemented through

the Base plane. 1. first & salve 2 types

SWI

SMM

SDM

BASEFABRIC

SWU

SWI

SWU SMM

SDM

TDM

UPB

USI orETI

UPB UPB UPB UPB UPB UPB UPB UPB UPB UPB UPB

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

USI orETI

UPB

UPB

UPB

UPB

UPB

UPB

SWU

SWU

UPB

UPB

UPB

UPB

UPB

UPB

USI

USI

USI

USI

USI

USI

SWI

SWI

USI

USI

USI

USI

USI

USI

0 1 2 3 4 5 6 7 8 9 10111213

FRONT

BACKBackplane

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 50

SWU (1)

1. Ejector lever 2. OOS indicator

3. HEALTHY indicator 4. SYSTEM indicator

5. BMC COM serial port

6. SYS COM serial port

7. LAN0 port 8. HOTSWAP indicator

9. LAN1 port

SWU is short for Switch Unit. Features:

The SWU implements data switching among the boards in a sub rack through the backplane and data switching among sub racks through cascading interfaces provided by the SWIs.

Three planes: Base, Fabric, and TDM Base plane:

− Provides 12 interfaces for connecting to 12 UPB slots.− Provides two interfaces for connecting to the active and standby

SMMs.− Provides one interface for connecting to the Base plane of the

other SWU to implement redundancy of the Base plane.− Provides eight external interfaces provided by the SWIs.

Fabric plane:− Provides 12 interfaces for connecting to 12 UPB slots.− Provides one interface for connecting to the Fabric plane of the

other SWU to implement redundancy of the Fabric plane.− Provides eight external interfaces provided by the SWIs.

TDM plane:− Provides 12 interfaces for connecting to 12 UPB slots.− Provides eight cascading interfaces and sharing external.

interfaces with the Base plane to implement cascading among sub racks.

− Implements the distribution of the system synchronization clocks and interworking of the TDM service messages.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 51

SWU (2)

SWU0 SWU1

1 GE Fabric Switch daughter Card

2 TDM Switch daughter Card

Currently, the MSOFTX3000 provides two types of the SWU, that is, SWU0 and SWU1.

The SWU0 provides switching functions only through the Base plane and GE Fabric plane. It is

used for broadband networking.

Based on the SWU0, the SWU1 is added with TDM switching functions. It can implement the

clock distribution among sub racks and TDM switching. It is used for narrowband networking.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 52

SWU (3) External ports

Port Function Description

5. BMC COM serial port

Used for locally updating or loading the BMC software

Communication standard: RS232Port type: RJ-45Baud rate: 115,200 bit/sNo indicator

6. SYS COM serial port

Used for local management, maintenance, and debugging of the Base and Fabric planes

Communication standard: RS232Port type: RJ-45Baud rate: 115,200 bit/sNo indicatorBy default, the SYS COM serial portserves as the serial port of the Base plane. It can serve as the serial port of the Base plane, Fabric GE plane through the BMC COM serial port command.

7. LAN0 portUsed for loading and internal debugging

10/100 Mbit/s Base-T autonegotiationPort type: RJ-45Cable type: UTP5Two indicatorsThis port is used only for loading the drive software of the Base plane and for internal debugging.

9. LAN1 port Used for maintenance

10/100 Mbit/s Base-T autonegotiationPort type: RJ-45Cable type: UTP5Two indicatorsThis port can be used for loading the drive software of the Fabric plane and for accessing Fabric GE subboard as a debug network port.It works only after the Base plane is started successfully.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 53

SWU (4) Indicators

Name Color Meaning Description Normal Status

2. OOSRed or amber

Service statusindicator

The OOS indicator has two states:•Off: The SWU works normally.•On or blinking: The SWU is out of service.

Off

3. HEALTHY

Red or green

Healthy statusindicator

The HEALTHY indicator has four states:•Off: The SWU is not powered on.•Steady green: The SWU works normally.•Steady red: The SWU is faulty.•Flash red: An alarm is generated.

Steady green

4. SYSTEM GreenCustomized indicator

The SYSTEM indicator is reserved for future use.

-

8. HOTSWAP

BlueHot-swapindicator

The HOTSWAP indicator has four states:•Off: The SWU is activated.•On: The SWU is inserted in the slot, but is powered off or deactivated.•Fast blink: The SWU is in the deactivated state and is requesting activation.•Slow blink: The SWU is in the activated state and is requesting deactivation.

-

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 54

SWI (1)

1. Line clock input interface

2. BASE/TDM interface

3. FABRIC interface 4. BITS clock input interface

5. Ejector lever 6. HOTSWAP indicator

7. HEALTHY indicator 8. OSS indicator

SWI is short for Switch Interface Unit.

Features: It is the interface board of the SWU. It is used to connect to

external devices or implement cascading of several subracks.

It provides eight 10/100/1000M Base-T interfaces of the Base plane. These interfaces also used for bearer of TDM services.

It provides eight 10/100/1000M Base-T interfaces of the GE Fabric plane.

It provides stratum-2 or stratum-3 clock functions, supporting BITS clock source and line clock source.

Interfaces:Interface Description

2. BASE/TDM interface

Eight Gigabit Ethernet interfaces10/100/1000 Mbit/s Base-T autonegotiation; Two indicators

3. FABRIC interface Eight Gigabit Ethernet interfaces10/100/1000 Mbit/s Base-T autonegotiation; Two indicators

4. BITS clock input

interface

One SMB interface

Provides 2-Mbps/2-MHz external clock input.

1. Line clock input

interface

One RJ45 interface

Provides two 8k line cock input.

SWIA0 SWIA1

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 55

SWI (2)

Indicators:

Name Color Meaning DescriptionNormal Status

8. OOSindicator

Red or amber

Service statusindicator

The OOS indicator has two states:•Off: The SWI works normally.•On or blinking: The SWI is out of service. Off

7. HEALTHY indicator

Red or green

Healthy statusindicator

The HEALTHY indicator has four states:•Off: The SWI is not powered on.•Steady green: The SWI works normally.•Steady red: The SWI is faulty.•Flash red: An alarm

Steady green

6. HOTSWAP indicator Blue

Hot-swapindicator

The HOTSWAP indicator has four states:•Off: The SWI is activated.•On: The SWI is inserted in the slot, but is powered off or deactivated.•Fast blink: The SWI is in the deactivated state and is requesting activation.•Slow blink: The SWI is in the activated state and is requesting deactivation. -

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 56

Chapter 3 Boards

Section 1 General Introduction

Section 2 Device Management

Module

Section 3 Switching Module

Section 4 Service Processing

Module

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 57

A service processing module is composed of multiple blade servers. A blade server can

be a front board UPB, a back board USI, or a narrowband interface board ETI.

The UPBs, USIs, and ETI are installed in slots 0 through 5 and slots 8 through 13.

The UPB is classified into UPBA0 and UPBA1. The UPBA0 can serve as a service

processing board that is deployed with the CCU, IFM, or BSG process. The UPBA1 can

serve as a server that is deployed with the OMU or iGWB.

The USI is classified into USIA1 and USIA7. The USIA1 provides four GE interfaces and

can serve as an IP interface board or an interface board for the iGWB/XPTU. The USIA7

provides six GE interfaces and one RTC clock module. It can serve as an interface board

for the OMU.

The ETI is classified into ETIA0 and EITA2. The ETIA0 provides 32 E1/T1 interfaces. The

ETIA2 provides 16 E1/T1 interfaces and 2 GE interfaces. The function of the ETI is to

provide narrowband interfaces for the UPBA0s.

Service Processing Module

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 58

UPB (1)

UPB is short for Universal Process Blade.

Features:

Strong processing capability: It can function as a hardware

carrier for the running of all services. Full configuration:

Certain communication capabilities, which enable multiple

service processing modules to form a stronger processing

system through switching modules.

− Provides two Base GE interfaces to connect to SWUs

in slots 6 and 7 through the Base bus.

− Provides two Fabric GE interfaces to connect to

SWUs in slots 6 and 7 through the Fabric bus.

Maintenance and management capability

− Provides two IPMB buses to connect to the SMMs.

− Supports the display, mouse, and keyboard.

1. Hard disk holder 2. Memory

3. CPU cooling fin 4. Processor

5. Hard disk 6. Mainboard

7. Flash subboard

2 x Intel four-

core CPU

6 x 4 GB

DDR2

memory

2 x 2.5-inch

SAS hard disk

4 GB FLASH

sub board

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 59

UPB universal process bord (2)

Rules for naming boards:A board name is generally composed of four characters and one digit, in the format of XXXM#. Where:XXX identifies the board hardware function. It cannot be easily modified after being defined. For example, the SWU specifies a switch board, and the UPB specifies a universal processing blade board. M is used to distinguish the different boards of the same function module. It must be a uppercase character, for example, the character A of the UPBA. If another hardware board is produced for the subsequent version, it may be named UPBB or UPBC.# indicates a digit and is used to distinguish different configurations for the same hardware board. For example, UPBA0 and UPBA1 indicate two different configurations of the same hardware board UPBA.

Configuration:

According to service requirements, the MSOFTX3000 provides

two types of UPBs:

UPBA0: serving as a service processing board that can be deployed

with the processes, such as the CCU or IFM

− CPU: 2 x 4 Core (2.13 GHz)

− Memory: 6 x 4 GB

− Hard disk: None

− Sub board: 4 GB FLASH sub board

UPBA1: serving as a server that can be deployed with the OMU,

iGWB server, XPTU, or INU:

− CPU: 2 x 4 Core (2.13 GHz)

− Memory: 2x 4 GB

− Hard disk: 2 x 146 GB (RAID1)

External interfaces:

Two USB 2.0 interfaces (compatible with the USB 1.1 specifications)

One RS232 interface (RJ-45 interface)

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 60

UPB (3) Indicators:

1. Captive screw 2. Hard disk 1

3. Hard disk 0 4. USB port

5. COM serial port6. HOTSWAP indicator

7. HD0_RAID/ALM indicator

8. HD0_ACT indicator

9. HD1_RAID/ALM indicator

10. HD1_ACT indicator

11. SYSTEM indicator 12. HEALTHY indicator

13. OOS indicator 14. Ejector lever

Name Color Meaning Description

13. OOS indicator

Red or amber

Service status indicator

The OOS indicator can be in red (in north America) or amber (in Europe). The color of the OOS indicator can be set through the BMC command.

Off: The UPB works normally and the services are in progress.

On or blinking: The UPB is out of service.

12. HEALTHY indicator

Red or green

Healthy status indicator

Off: The UPB is not powered on. (The indicator blinks 10 times during power-on.)

Steady green: The UPB works normally.

Blinking red: An alarm occurs in the UPB.

11. SYSTEM indicator

- - You can define the function of this indicator.

6. HOTSWAP indicator

BlueHot-swap indicator

Off: The UPB is activated.On: The UPB is not powered on or is deactivated.Fast blink (The indicator is on for 900 ms and then off for 100 ms alternatively.): The UPB is being activated.Slow blink (The indicator is on for 900 ms and then off for 100 ms alternatively.): The UPB is being deactivated.

8/10. HD_ACT indicator

Green

Hard disk status indicator

The HD_ACT indicator indicates whether the hard disk is activated or being read or written.Off: The hard disk is not installed or is deactivated.On: The hard disk is activated.Blinking: The hard disk is being read or written.

7/9. HD_RAID/ALM indicator

Red or green

Hard disk status indicator

The HD_RAID/ALM indicator indicates whether the hard disk is in RAID synchronization or whether a fault or alarm occurs.Steady red: The hard disk is faulty.Blinking red: The hard disk generates alarms.Blinking green (at a frequency of 1 Hz): The hard disk is in RAID synchronization.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 61

USI (1) USI is short for Universal Service Interface.

Features:

As a back board, the USI provides interfaces for the UPB to

communicate with external devices. It must be used together with the

UPB.

The USI can be installed with different sub boards to provide different

interfaces.

Sub boards used by the USI:

− GE sub board: Configure 2 pcs for the USIA1 in the position of

J3 and J2; configure 3 pcs for the USIA7 in the position of J3, J2,

and J1. Each GE subscriber provides two GE interfaces.

− RTC subboard: Configure 1 pcs for the USIA7 in the position of

J4. As the back board of the OMU, the RTC subboard provides

the precise time source.

1. Positioning pin 2. Subboard connector (J4)

3. Subboard connector (J1) 4. Subboard connector (J2)

5. Subboard connector (J3) 6. Subboard positioning hole

网口指示灯

网口指示灯

GE subboard RTC subboard

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 62

USI (2)

Indicators:

1. Captive screw 2. Shielding finger

3. Ejector lever 4. OSS indicator

5. HEALTHY indicator 6. Filler panel

7. GE interface8. HOTSWAP indicator

9. Network interface indicator

10. GE interface

11. USB port

External interfaces: One USB interface for connecting to the mouse and

keyboard

One VGA interface for connecting to the display

Four GE interfaces provided by the USIA1 and six GE interfaces provided by the USIA7

USIA1 USIA7

The USI is classified into USIA1 and USIA7. The USIA7 is used as the back board of the OMU.

Name Color Meaning Description

4. OOS indicator

Red or amber

Service status indicator

•Off: The USI works normally and the services are in progress.•On or blinking: The USI is out of service.

5. HEALTHY indicator

Red or green

Healthy status indicator

•Off: The USI is not powered on. The indicator blinks 10 times during power-on.•Steady green: The USI works normally.•Blinking red: An alarm occurs in the USI.

8. HOTSWAP indicator

Blue Hot-swap indicator •Off: The USI is activated.

•On: The USI is not powered on or is deactivated.•Fast blink: The USI is being activated.•Slow blink: The USI is being deactivated

9. Network interface indicator

Yellow or green

Network interface status indicator

Off: The network interface does not work.Steady green: The network interface is in Link state.Steady yellow: The network interface is in Active state. It is receiving and sending data.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 63

ETI (1) ETI is short for E1/T1 Interface Unit.

Features:

As a back board, the ETI provides E1/T1 interfaces and

extracts the line clock.

The ETI can implement the system clock synchronization and

processing of the narrowband MTP1 or MTP2 signaling. It

can also implement the timeslot switching function.

The ETI can be installed with either of the following sub

boards:

− GE sub board: Configure 1 pcs for the ETIA2, in the

position of J6.

− E1/T1 sub board: Configure 2 pcs for the ETIA0 and 1

pcs for the ETIA2.

1. Positioning pin 2. Subboard connector (J27/J28)

3. Subboard connector (J6)

4. Subboard connector (J25/J26)

5. Subboard positioning hole

网口指示灯

网口指示灯

GE subboard

E1/T1subboard

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 64

ETI (2)

Indicators:

1. Captive screw 2. Shielding finger

3. Ejector lever 4. OSS indicator

5. HEALTHY indicator

6. E1/T1 interface

7. GE interface8. HOTSWAP indicator

9. Network interface indicator 8 kHz clock interface

External interfaces: 16 or 32 E1/T1 interfaces

Two 8-kHz clock interface

Two GE interfaces

The ETI is classified into ETIA0 and ETIA2. The ETIA0 is a standard configuration type, and the EITA2 is used only in offices that support less than 600,000 subscribers. In this case, one EITA2 provides both broadband interfaces and narrowband interfaces.

ETIA0 ETIA2

Name Color Meaning Description

4. OOS indicator

Red or amber

Service status indicator

•Off: The ETI works normally and the services are in progress.•On or blinking: The ETI is out of service.

5. HEALTHY indicator

Red or green

Healthy status indicator

•Off: The ETI is not powered on. The indicator blinks 10 times during power-on.•Steady green: The ETI works normally.•Blinking red: An alarm is generated.

8. HOTSWAP indicator

Blue Hot-swap indicator

•Off: The ETI is activated.•On: The ETI is not powered on or is deactivated.•Fast blink: The ETI is being activated.•Slow blink: The ETI is being deactivated

9. Network interface indicator

Yellow or green

Network interface status indicator

Off: The network interface does not work.Steady green: The network interface is in Link state.Steady yellow: The network interface is in Active state. It is receiving and sending data.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 65

Questions

How many subsystems is the MSOFTX3000 OSTA2.0 platform logically composed of?

Which board is used to set the subrack number in the MSOFTX3000 OSTA2.0 platform?

Which board is responsible for implementing subrack management in the MSOFTX3000 OSTA2.0 platform?

Which board is responsible for implementing subrack cascading in the MSOFTX3000 OSTA2.0 platform? How many cascading subracks are supported by the MSOFTX3000 hardware?

How many configuration types of does the UPB have in the MSOFTX3000 OSTA2.0 platform? What are their functions?

What kind of physical interfaces can be provided by the SUI in the MSOFTX3000 OSTA2.0 platform? How many types are these interfaces classified into?

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 66

AnswersHow many subsystems is the MSOFTX3000 OSTA2.0

platform logically composed of?

Logically, the MSOFTX3000 OSTA2.0 platform is composed of service

processing subsystem, switching subsystem, electromechanical

subsystem, and equipment management subsystem.

Which board is used to set the sub rack number in the

MSOFTX3000 OSTA2.0 platform?

The SDM is used to set the sub rack number in the MSOFTX3000

OSTA2.0 platform.

Which board is responsible for implementing sub rack

management in the MSOFTX3000 OSTA2.0 platform?

The SM M is responsible for implementing sub rack management in the

MSOFTX3000 OSTA2.0 platform.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 67

Answers Which board is responsible for implementing subrack cascading

in the MSOFTX3000 OSTA2.0 platform? How many cascading

subracks are supported by the MSOFTX3000 hardware?

The SWU and SWI together are responsible for implementing subrack cascading in the

MSOFTX3000 OSTA2.0 platform. The MSOFTX3000 hardware supports a maximum of

nine subracks for cascading.

How many configuration types of does the UPB have in the

MSOFTX3000 OSTA2.0 platform? What are their functions?

In the MSOFTX3000 OSTA2.0 platform, the UPB is classified into UPBA0 and UPBA1.

The UPBA0 can serve as a service process board that is configured with specified

processes such as the CCU or BSG. The UPBA1 can server as a server board that is

configured with the OMU or iGWB.

What kind of physical interfaces can be provided by the SUI in

the MSOFTX3000 OSTA2.0 platform? How many types can these

interfaces be classified into?

In the MSOFTX3000 OSTA2.0 platform, the USI provides the 100/1000M auto-sensing

Ethernet interfaces, which can be classified into the OMC interface, NTP interface,

charging interface, interception interface, and broadband signaling interface.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 68

Contents

Chapter 1 Overview

Chapter 2 Overall System

Chapter 3 Boards

Chapter 4 Signal Flow

Chapter 5 Cable Connection

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 69

Chapter 4 Signal Flow

Section 1 Signal Flow of the IPMB Bus

Section 2 Signal Flow of the Base Plane

Section 3 Signal Flow of the Fabric Plane

Section 4 Signal Flow of the TDM Clock

and Signaling

Section 5 Others

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 70

Signal Flow of the IPMB Bus - In a Subrack

UPB UPB

USI

IP Network

OMU OMU CSCF CSCF

USI

SMM SMM

GE/FE GE/FE

交换网板SWU

交换网板SWU

维护 Lanswitch 维护 Lanswitch

USI

IP Network

OMU OMU UPB UPB

USI

SMM SMM

GE/FE GE/FE

SWU SWU

LMT

IPMB management message flowSelf management module

Switching moduleUniversal processing module

Universal service interface

Fabric plane (service plane)

Management message flow

IPMB plane (device management plane)

Base pane (management plane)

TDM plane (narrowband service plane)

OM LAN Switch OM LAN Switch

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 71

Signal Flow of the IPMB Bus - Among Subracks

UPB UPBUPB UPB

后插板USI

IP Network

OMU OMU

后插板USI

交换网板SWU

CSCF CSCF

交换网板SWU

交换网板SWU

2框 0

CSCF CSCFSMM SMM

维护 Lanswitch 维护 Lanswitch

GE/FEGE/FE

USI

IP Network

OMU OMU

USI

UPB UPB

SUBRACK 2 SUBRACK 0

UPB UPBSMM SMM

LMT

GE/FEGE/FE

SWUSWU

SWI

SWUSWU

SWI

SWUSWU

SWI

SWUSWU

SWI

IPMB management message flow

Fabric plane (service plane)

Management message flow

IPMB plane (device management plane)

Base pane (management plane)

TDM plane (narrowband service plane)

OM LAN switch OM LAN switch

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 72

Chapter 4 Signal Flow

Section 1 Signal Flow of the IPMB Bus

Section 2 Signal Flow of the Base Plane

Section 3 Signal Flow of the Fabric Plane

Section 4 Signal Flow of the TDM Clock

and Signaling

Section 5 Others

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 73

Signal Flow of the Base Bus - In a Subrack

UPB UPB

USI

IP Network

OMU OMU CSCF CSCF

USI

SMM SMM

GE/FE GE/FE

交换网板SWU

交换网板SWU

维护 Lanswitch 维护 Lanswitch

USI

IP Network

OMU OMU UPB UPB

USI

SMM SMM

GE/FE GE/FE

SWU SWU

LMT

TDM plane (narrowband service plane)

Fabric plane (service plane)

Management message flow

IPMB plane (device management plane)

Base pane (management plane)

OM LAN switch OM LAN switch

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 74

Signal Flow of the Base Bus - Among Subracks

UPBUPBUPBUPB

USI

IP Network

OMU OMU

后插板USI

CSCF CSCF

交换网板SWU

交换网板SWU

2框

CSCF CSCF

维护 Lanswitch 维护 Lanswitch

GE/FEGE/FE

USI

IP Network

OMU OMU

USI

UPB UPB

SUBRACK 2 SUBRACK 0

UPB UPB

LMT

OM LAN switch

GE/FEGE/FE

SWI

SWU

SWI

SWU

SWI

SWU

SWI

SWU

Fabric plane (service plane)

Management message flow

IMPB plane (device management plane)

Base plane (management plane)

TDM plane (narrowband service plane)OM LAN switch

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 75

Chapter 4 Signal Flow

Section 1 Signal Flow of the IPMB Bus

Section 2 Signal Flow of the Base Plane

Section 3 Signal Flow of the Fabric Plane

Section 4 Signal Flow of the TDM Clock and

Signaling

Section 5 Others

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 76

Signal Flow of the Fabric Bus - In a Subrack

UPB UPB

USI

IP Network

OMUOMU CSCF CSCF

交换网板SWU

交换网板SWU

维护 Lanswitch

USI

IP Network

OMUUPB UPB UPB

USI

GE GE

SWU SWU

Signaling LAN Switch Signaling LAN Switch

UPB

Service flow

TDM plane (narrowband service plane)

Fabric plane (service plane)

IPMB plane (device management plane)

Base pane (management plane)

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 77

Signal Flow of the Fabric Bus - Among Subracks

UPBUPBUPBUPB

USI

IP Network

OMU OMU

后插板USI

CSCF CSCF

交换网板SWU

交换网板SWU

2框

CSCF CSCF

GE/FEGE/FE

USI

IP Network

UPB UPB

USI

UPB UPB

SUBRACK 2 SUBRACK 0

UPB UPB

Signaling LAN Switch

GE/FEGE/FE

SWI

SWU

SWI

SWU

SWI

SWU

SWI

SWU

Signaling LAN Switch

Service flow

TDM plane (narrowband service plane)

Fabric plane (service plane)

IPMB plane (device management plane)

Base pane (management plane)

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 78

Chapter 4 Signal Flow

Section 1 Signal Flow of the IPMB Bus

Section 2 Signal Flow of the Base Plane

Section 3 Signal Flow of the Fabric Plane

Section 4 Signal Flow of the TDM Clock

and Signaling

Section 5 Others

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 79

Signal Flow of the TDM Clock and Signaling – In a subrack

BITS0

UPB UPBOMUOMU CSCF CSCF

ETI

OMUUPB UPB UPB

SWU

UPB

ETI

SWI

SWU

SWI

BITS1

2Mbps/2MHz

ETI* ETI#

E1

E1

8kHz

Each SWIA provides one BITS interface and two 8-kHz line clock interfaces. After the SWIA receives a BITS clock source, the BITS clock source is divided into two sources in the SWIA. One of the sources is used for the current board and the other is used for the corresponding standby board. Therefore, from the view of the clock module, each SWIA can provide a maximum of two BITS lock sources and two 8-kHz line clock sources, that is, four clock sources.

Narrowband signaling flow

Narrowband clock flow

Service flow

TDM plane (narrowband service plane)

Fabric plane (service plane)

IPMB plane (device management plane)

Base pane (management plane)

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 80

Signal Flow of the TDM Clock and Signaling – Among subrack

UPBOMU

CSCF

交换网板SWU

交换网板SWU

ETI

UPB UPB

SUBRACK 2 SUBRACK 0

SWI

SWU

SWI

SWU

SWI

SWU

ETI ETI

UPB

ETI

UPB UPB UPBUPB

BITS0

BITS1

2Mbps/2MHz

ETI* ETI#

E1

E1

8kHz

SWI

SWU

Narrowband signaling flow

Narrowband clock flow

Service flow

TDM plane (narrowband service plane)

Fabric plane (service plane)

IPMB plane (device management plane)

Base pane (management plane)

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 81

Chapter 4 Signal Flow

Section 1 Signal Flow of the IPMB Bus

Section 2 Signal Flow of the Base Plane

Section 3 Signal Flow of the Fabric Plane

Section 4 Signal Flow of the TDM Clock and

Signaling

Section 5 Others

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 82

Time Synchronization Signal Flow

UPBUPBUPBUPB

USI

OMU OMU

后插板USI

Time synchronization signal flow

CSCF CSCF

交换网板SWU

交换网板SWU

2框

CSCF CSCF

GE/FE

USI

IP NetworkIP Network

OMU OMU

USI

UPB UPB

SUBRACK 2 SUBRACK 0

UPB UPB

NTP server

GE/FE

SWI

SWU

SWI

SWU

SWI

SWU

SWI

SWU

Description:1. The RTC subboard is configured in the USI7, the back board corresponding to the OMU.2. The OMU sets and reads time in the RTC subboard through the CPU.3. Boards in a subrack or in different subracks implement time synchronization through the Base plane and the NTP protocol.4. The RTC subboard provides a built-in Stratum-2 clock oscillator (0.4PPM), which ensures the preciseness of the time if the NTP server is disconnected.

TDM plane (narrowband service plane)

Fabric plane (service plane)

IPMB plane (device management plane)

Base pane (management plane)

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 83

Signal Flow of the KVM Over IP

In the ATCA platform, each UPB functions as a server, and the KVM over IP provides a remote KVM function. With the KVM over IP, you

can access to the information of any UPB (a maximum of eight boards at the same time) in any subrack over the OMC interfaces provided by

the OMU.The UPB exchanges the VIG interface information and KVM analog information with the SMM through the IPMB bus. The SMM then packs

the information to IP packets and sends them to the local maintenance terminal through the OMC interface provided by the OMU board.

UPB UPBUPB UPB

后插板USI

IP Network

OMU OMU

后插板USI

交换网板SWU

CSCF CSCF

交换网板SWU

交换网板SWU

2框 0

CSCF CSCFSMM SMM

维护 Lanswitch 维护 Lanswitch

GE/FEGE/FE

USI

IP Network

OMU OMU

USI

UPB UPB

SUBRACK 2 SUBRACK 0

UPB UPBSMM SMM

LMT

OM LAN Switch

SWUSWU

SWI

SWUSWU

SWI

SWUSWU

SWI

SWUSWU

SWI

OM LAN Switch

IPMB management message flow

Fabric plane (service plane)

Management message flow

IPMB plane (device management plane)

Base pane (management plane)

TDM plane (narrowband service plane)

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 84

Questions

How many types of signal flow are provided by the MSOFTX3000 OSTA2.0 platform?

If the hardware of a board is faulty in the MSOFTX3000 OSTA2.0 platform, how is an alarm generated for this failure?

In the MSOFTX3000 OSTA2.0 platform, how is the clock distribution among the narrowband clock subracks implemented? How is the narrowband signal flow implemented?

In the MSOFTX3000 OSTA2.0 platform, how is the time synchronization implemented?

In the MSOFTX3000 OSTA2.0 platform, which boards does the signal flow of KVM over IP pass through?

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 85

Answers How many types of signal flow are provided by the MSOFTX3000 OSTA2.0 platform?There are four types of signal flow: IPMB bus signal flow, Base plane signal flow, Fabric plane signal flow, and TDM bus signal flow.

If the hardware of a board is faulty in the MSOFTX3000 OSTA2.0 platform, how is an alarm generated for this failure?The faulty board generates an alarm and reports the alarm to the SMM in the subrack through the IPMB bus. The SMM then reports the alarm to the OMU through the Base plane.

In the MSOFTX3000 OSTA2.0 platform, how is the clock distribution among the narrowband clock subracks implemented? How is the narrowband signal flow implemented? The SWI in subrack 0 generates the internal reference clock after locking the external reference clock, and then delivers the internal reference clock to the SWU in subrack 0. The SWU then delivers the reference clock to each ETI in the current subrack through the TDM bus. For the clock distribution among subracks, the SWU in subrack 0 delivers the internal reference clock to the SWI in each expansion subrack through the Base cascading interfaces. The SWI then retracts the reference clock and delivers it to the corresponding SWU, and the SWU is responsible for delivers the reference clock to each ETI.

After being exported through the E1 interface of the ETI, the narrowband signaling is processed for MTP1 and partial MTP2, and then delivered to the corresponding UPBs for other processing.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 86

AnswersIn the MSOFTX3000 OSTA2.0 platform, how is the time

synchronization implemented?

The time synchronization is implemented through the Base bus. The OMU board

synchronizes time with NTP server through the NPT interface provided by its

corresponding back board and stores the time in the RTC sub board in the back

board. The time provided by the TRC sub board is considered as the system

time of the MSOFTX3000. All the modules in the system synchronize time

through the Base bus and NTP protocol.

In the MSOFTX3000 OSTA2.0 platform, which boards does

the signal flow of KVM over IP pass through?

The signal flow of the KVM Over IP passes through the UPBs, SMMs, SWUs,

and OMU board.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 87

Contents

Chapter 1 Overview

Chapter 2 Overall System

Chapter 3 Boards

Chapter 4 Signal Flow

Chapter 5 Cable Connection

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 88

Chapter 5 Cascading and Cabling

Section 1 PDB Monitoring Cable

Section 2 Cascading Cable Among Subracks

Section 3 External Cable of the OMU/iGWB

Section 4 Broadband Service Cable

Section 5 Narrowband Service Cable

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 89

Installation of PDB Cables

The PDB working status is monitored by

the SMMs in the subrack located at the

bottom of a cabinet. For example, in an

integrated configuration cabinet, the PDB is

monitored by the SMMs in subrack 0, and

in a service processing cabinet, the PDB is

monitored by the SMMs in subrack 2.

During installation, one end of the PDB

cable is connected to the serial port

connectors in the monitoring panel at the

rear of the PDB and the other end is

connected to the COM2 serial ports in the

SDMs. Self data madule

The PDB cables are configured before

delivery; therefore, you need not configure

them on site.

PDB

OSTA2.0 RACK

OSTA2.0 RACK

OSTA2.0 RACK

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 90

Installation of Power Cables from the PDB to Internal Components of a Cabinet

Power cables have been bundled to cabinets before

delivery. If a cabinet is configured with subracks, LAN

Switches, and MTMU before delivery, the power cables

among these components have also been configured.

During capacity expansion, the power cables must be

reconnected on site. Master rack monitoring unit

Cabinet Switches Component

Integrated configuration cabinet

(A7 and A8) / (B7 and B8) SUBRACK-1 (expansion subrack 1)

A2/B2 MRMU

A3 LANS-1

B3 LANS-0

A1 KVMS

(A9 and A10) / ( B9 and B10 )

SUBRACK-0 (basic subrack 0)

Service

processin

g cabinet

(A7 and A8 ) / ( B7 and B8)

SUBRACK-1 (expansion subrack 3)

(A9 and A10) / ( B9 and B10 )

SUBRACK-0 (expansion subrack 2)

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 91

Chapter 5 Cascading and Cabling

Section 1 PDB Monitoring Cable

Section 2 Cascading Cable Among

Subracks

Section 3 External Cable of the OMU/iGWB

Section 4 Broadband Service Cable

Section 5 Narrowband Service Cable

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 92

Subrack Cascading Subrack cascading is implemented

through the GE interfaces provided by the

SWIs. The SWIs in expansion subracks

are connected to the SWIs in the basic

subrack through cables. One cable is

required for the Base bus and Fabric bus.

Principle for using ports: from the top to

the bottom and the topmost port first

Only LAN0 is available in an expansion

subrack. (The narrowband clock is

extracted through LAN0 of the Base

plane.)

0#

SWI

01234567

01234567

SWI

01234567

01234567

1#

SWI

01234567

01234567

SWI

01234567

01234567

2#

SWI

01234567

01234567

SWI

01234567

01234567

Base/TDM cascading interface

Fabric cascading interface

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 93

Subracks are connected using straight-through cables. Each subrack should be configured with four cables.

The interfaced provided by the SWI should be used from top to bottom. The LAN0 of an expansion subrack is permanently used for connection.

Base cascading interface

Fabric cascading interface

Subrack Cascading Diagram

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 94

Chapter 5 Cascading and Cabling

Section 1 PDB Monitoring Cables

Section 2 Cascading Cable Among

Subracks

Section 3 External Cables of the

OMU/iGWB

Section 4 Broadband Service Cables

Section 5 Narrowband Service Cables

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 95

Cable Configuration of the Back Board Corresponding to the OMU Board

OMC interface

NTP interface

Interception interface

The OMU board is generally configured in front slots 4 and 5 of subrack 0. Its corresponding back board is the USIA7, which provides six 100M/1000M autonegotiation Ethernet interfaces.

The USIA7 provides three logical interfaces, namely, OMC interface, NTP interface, and interception interface. For details, see the figure above.

Note that the physical cable connection must be consistent with the data configuration.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 96

Cable Configuration of the Back Board Corresponding to the iGWB Board

Charging interface

The iGWB board is generally configured in front slots 4 and 5 and slot 8 and 9 of a subrack. Its corresponding back board is the USIA1, which provides four 100M/1000M autonegotiation Ethernet interfaces.

The iGWB board supports only one charging interface, which is the first interface (from the top to the bottom) of the USIA1, that is, Card3 LAN0. For details, see the figure above.

Note that the physical cable connection must be consistent with the data configuration.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 97

Chapter 5 Cascading and Cabling

Section 1 PDB Monitoring Cable

Section 2 Cascading Cable Among

Subracks

Section 3 External Cable of the

OMU/iGWB

Section 4 Broadband Service Cable

Section 5 Narrowband Service Cable

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 98

Broadband Signaling Cable Configuration

Broadband interface

The back board corresponding to the UPB that is configured with an IFM process is the USIA1. Such UPBs are generated configured in slots 0 and 1 of a subrack. The USIA1 provides four 100M/1000M autonegotiation Ethernet interfaces.

The broadband interface refers to the first interface (from the top to the bottom) of the USIA1, that is, Card3 LAN0. For details, see the figure above.

Note that the physical cable connection must be consistent with the data configuration.

To the IP Backbone network

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 99

Broadband Signaling Cable Configuration

All the broadband signaling is routed to an LAN Switch and then collectively routed to the IP bearer network. (not applicable to China Mobile)

LAN Switches are connected to each other through two ports and have been configured with the Trunk function.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 100

Chapter 5 Cascading and Cabling

Section 1 PDB Monitoring Cable

Section 2 Cascading Cable Among

Subracks

Section 3 External Cable of the

OMU/iGWB

Section 4 Broadband Service Cable

Section 5 Narrowband Service Cable

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 101

Narrowband Clock Cable Configuration

The SWIA1 provides narrowband clock interfaces, namely, 2-Mbps/2-MHz BITS clock for external synchronization and 8-k clock interface. The SWIA1 can be installed only in back slots 6 and 7 of subrack 0.

The 8k clock is retrieved by the ETIA from the E1 links and then exported to the SWIA1. Note that the 8-kHz clocks of the same SWIA1 must be provided by two different ETIAs.

The BITS clock is provided by the external BITS device. The ATCA platform supports two independent BITS clock sources.

8 kHz clock interface

BITS clock interface

BITS0

BITS1

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 102

Trunk Cabling Configuration

Trunk cable connectors

The EITA0 or EITA2 provides narrowband signaling interfaces for the system. Each interface supports 16 E1 lines.

The trunk cables is classified into 75-ohm trunk cables and 120-ohm trunk cables.

During cable layout, all the trunk cables are led from the ETIs to a 2-U cabling though, and then laid along the both sides of a cabinet.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 103

Questions

How to configure the cascading cables in the

MSOFTX3000 OSTA2.0 platform?

Which logical interfaces are provided by the back board

corresponding to the OMU board? How are the cables

connected?

Which board provides the narrowband clock interface?

How many types of clock interfaces are provided? How

are the cables connected?

Where are the broadband signaling interfaces

configured in a subrack? How the cables are

connected?

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 104

Answers

How to configure the cascading cables in the MSOFTX3000

OSTA2.0 platform?

Each OSTA2.0 subrack requires four straight through cables for cascading, with two

cables for each SWI, one for the Base plane, and one for the Fabric plane. The SWI

provides eight interfaces for the Base plane and eight interfaces for the Fabric plane.

All the interfaces provided by the SWI in subrack 0 can be used in the sequence from 0

to 7. For the other subracks, only interface LAN0 is available among the interfaces

provided by SWI. (For details, see P90.)

Which logical interfaces are provided by the back board

corresponding to the OMU board? How are the cables

connected?

The back board corresponding to the OMU board provides three types of interfaces:

OMC interface, NTP interface, and interception interface. The physical port numbers

corresponding to these three interfaces are Card2/Lan0, Card2/Lan1, and Card4/Lan0.

For details about the cable connection, see P93.

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 105

Answers

Which board provides the narrowband clock interface?

How many types of clock interfaces are provided? How

are the cables connected?

The SWI (to be specific, SWIA1) provides the narrowband clock interfaces,

support the external BITS clock source and 8-kHz line clock source. For

details about the cable connection, see P99.

Where are the broadband signaling interfaces

configured in a subrack? How the cables are connected?

The narrowband signaling interface is generally configured in slots 0 and

1. The corresponding front board is configured with the IFM process. For

details about the cable connection, see P95.

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