ua 011102 sg7000 hardware structure issue1.1 20050103.ppt

ISSUEISSUE

Fixed Network Curriculum

Development Section

Fixed Network Curriculum

Development Section

UA0100 SG7000 Hardware StructureUA0100 SG7000 Hardware Structure1.11.1

Confidential Information of Huawei. No Spreading without Permission.

Security Level: Internal

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Lesson GoalLesson Goal

Know about the hardware structure and

logical structure of the SG7000

Understand the working principles of the

SG7000 boards

Master the SG7000 service flow and

configuration

After this lesson, you can



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Lesson ContentsLesson Contents

Chapter 1 SG7000 Hardware Structure

Chapter 2 SG7000 Logical Structure

Chapter 3 SG7000 Message Flow



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Chapter 1 SG7000 Hardware StructureChapter 1 SG7000 Hardware Structure

Section 1 Service Shelf Configuration

Section 2 Board Introduction

Section 3 Hardware Working Principle



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CabinetCabinet

The SG7000 uses IEC-standard B68-21 cabinet, with

dimensions 2100 mm × 600 mm × 800 mm (H × W × D).

The main control cabinet is configured with one BAM server,

two Ethernet LAN switches (for internal connection), one LCD

display switcher and one or two service shelves.



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Main Control Cabinet in Full ConfigurationMain Control Cabinet in Full Configuration

B68-21 cabinet in full configuration

DC distributor box

2U

14U

14U

2U

LAN Switch 1LAN Switch cabling frame

2U

2U

1U1U

BAM server

Service shelf

Service shelf

LAN Switch cabling frameLAN Switch 0

LCD display switcher

Dummy panel

Dummy panel

1U1U

1U1U



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Service Shelf Configuration (1)Service Shelf Configuration (1)

The configurations of a single shelf are shown

below, where the grey ones are back boards:

EPII

EPII

EPII

EPII

EPII

VIEB

HBIU

HSCU

HBIU

HSCU

VIEB

EPII

EPII

CKII

CKII

SBPU

SBPU

SBPU

SBPU

SBPU

SBPI

HSYS

HSYS

SBPI

SBPU

SBPU

ALUI



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TDM interface

IP interface

CKII

VIEB

HSYS

HBIU

PSTN

HCOMSCBVcascading

EPII

WS oriManager N2000

SoftX3000

M2PA/M3UA

8k/2M Clock

Relationship of SG7000 Boards

IP

CCS7 64k/2M

MML/SNMP

1*100M Ethernet

HSCU

SBPU

8 E1/T1

ALUI

SBPI

Front board

Back board

10M/100M Ethernet

Lan Switch10M/100M Ethernet

Pinch board is SLPU

16 *Slave frame

BAM

Lan Switch

BUS

M2PA/M3UA



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Configuration of cascaded shelves

Figure of the master service shelf in case of cascaded shelves

EPII

EPII

EPII

EPII

VIEB

SCBU

HBIU

HSCU

HBIU

HSCU

SCBU

VIEB

EPII

CKII

CKII

SBPU

SBPU

SBPU

SBPU

SBPI

HCOM

HSYS

HSYS

HCOM

SBPI

SBPU

ALUI



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Figure of the slave service shelf in case of cascaded shelves

EPII

EPII

EPII

EPII

V IEB

SCBU

HBIU

HSCU

HBIU

HSCU

SCBU

V IEB

EPII

EPII

EPII

EPII

SBPU

SBPU

SBPU

SBPU

SBP I

HCOM

HSYS

HSYS

HCOM

SBP I

SBPU

SBPU

SBPU

SBPU

ALUI

There aren’t CKII Board in slave shelves.Usually two frame need a pair of SBPI/VIEB board.A pair of VIEB need one IP address.



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HSYS FunctionHSYS Function

HSYS is the System board of the SG7000 and works in the 1 +

1 backup mode.

High-speed bus configuration and status management

Communicating with interface board through high-speed bus

Managing all boards in the service processing shelf and

feeding back the statuses to the background

Communicating with background through Ethernet interface

Implementing system loading and management functions



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HSYS InterfaceHSYS Interface

The HSYS interface is shown below:

Type Parameter Index Remarks

RS232 serial interface1

For debugging purpose, with panel RJ45 socket and hot-plugging protection

RS422 master/slave serial interface 1

Communicating with EPII, ALUI, CKII and SCBU

RS485 serial interface 2

Working with HBIU to provide back physical interface

Interface

10/100M Ethernet interface

1

Working with HBIU to provide back physical interface



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HSYS IndicatorHSYS Indicator

The functions of the HSYS indicators are as follows:

Indicator Color Note Meaning Normal status

FAIL indicator

Yellow 1 For board fault

Off when board is normal, On when board is faulty

Yellow 1 For board working status

Flashing when board is normal (1 s on and 1 s off)

DOMADOMB indicator

Green 1 each For high-speed bus status

Both are on for active HSYSBoth are off for standby HSYS

RUN indicator



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HSCU FunctionsHSCU Functions

HSCU is the hot-plugging(Switch) Control board of the SG7

000, controlling board hot-plugging function. It is configured wit

h HSYS in pairs.

It is a back board.

It is not hot-pluggable.



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HSCU IndicatorHSCU Indicator

HSCU indicators are explained as below:


DOMADOMBindicator

Green 1each

For high-speed bus status

When both are on, the HSYS that is in pairs with the HSCU is active; otherwise, it is standby



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CKII FunctionsCKII Functions

CKII is the Clock board of the SG7000, inserted in the master service shelf

and occupying two slots. It provides level-2 standard synchronization clock

for the SG 7000 system, working in 1+1 backup mode.

The SG7000 is configured with only one pair of CKIIs.

Clock reference has 2M Bit/s (input from BITS Device), connect to BITS Port.

2M Hz (input 2M-A/B form EPII board ), connect to LINE Port.

8K (output interface ), connect to other slave frames.



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CKII Specifications and InterfacesCKII Specifications and Interfaces


Providing BELLCORE GR-1244 CORE complaint level-2

clock, ITU-T G.812 Type II clock, and the clock signal

according to the level-2 node clock requirements in Digital

Synchronous Network Node Clock Series and Timing

Characteristics and Digital Synchronous Network

Independent Node Slave Clock Equipment Specifications

and Test Method by MII.

Function

Supporting the SMM function required by ITU-T G.781 and

Digital Synchronous Network Independent Node Slave

Clock Equipment Specifications and Test Method of MII.

The external synchronous clock interface meets the

requirements in ITU-T G.703 and ITU-T G.704 templates.

2M BITS clock

input interface

2 Connected with BITS clock

equipment

2M LINE clock

input interface

2 Connected with EPII

Interfaces

8KHz clock

output interface

16 Providing clock for local EPII

and the communication

between shelves



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CKII Panel and Indicator CKII Panel and Indicator

A RST button is on the panel.

The meanings of the indicator are as follows:


FAIL indicator

Yellow 1 For error status

When it is on, this board is resetting or in error.

RUN indicator

Green 1For running status

Flashing at 4Hz in loading program

ACT indicator

Yellow 1 For active/ standby status

On for the active status

Off for the standby status

Flashing at 1Hz in normal running

Flashing at 0.5Hz for standby status



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SBPU FunctionsSBPU Functions

SBPU is the Broadband Signaling Processor board of the SG7

000. As the basic signaling processor unit, it processes No. 7 s

ignaling and SIGTRAN protocol. Two SLPUs are pinched on t

his board.

SBPU provide the TDM Singnaling Interface process, it can pro

cess 64kbps or 2Mbps Link.



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SBPU InterfaceSBPU Interface

SBPU interface


InterfaceRS232 serial interface 1

For debugging purpose, with panel RJ45 socket and hot-plugging protection.



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SBPU Panel and IndicatorsSBPU Panel and Indicators

The board has a reset button RST on the panel.Indicator Color Note Meaning Normal status

RUN Green 2 For SLPU pinch board working status

It is flashing normally (1 s on and 1 s off) when the SLPU pinch board is normal. It is off when the board is abnormal.

ALM Yellow 2 For SLPU pinch board link status

It is flashing fast (5 times /second) when SLPU is not configured at background. It is off when the board is configured and link is configured. When the SLPU is configured, link is configured but the link is not located, it is flashing slowly (1 time/second). When the board is configured, link is configured and link is located, it is off.

FAIL indicator Yellow 1 For board fault If is off when the board is normal, and off when the board is faulty.

RUN indicator Green 1 For SBPU working status

It is flashing (1 s on and 1 s off) when the board is in normal status. It is flashing fast at 4Hz in loading.

Hot-plugging indicator

Blue 1 For hot-plugging It is on when the board is inserted into shelf and before the power-on, and it is also on when the board is unplugged from the shelf.



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SLPU FunctionsSLPU Functions

It is the universal No. 7 signaling processing board (pinch board

of SBPU), and each SLPU can process 16 * 64K signaling links or

can process one 2M high-speed signaling links.

There are 2 SLPU in one SBPU Board at most. So that there

are 32*64K signaling links or can process 2*2M high-speed

signaling links totally.



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SBPI FunctionsSBPI Functions

As the broadband signaling distributor board of the S

G7000, SBPI implements the LAN drive of Broadband

Interface and IP distributor unit functions, working in t

he 1+1 backup mode.

SBPI provide the IP Singnaling Interface process.



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SBPI InterfaceSBPI Interface

SBPI interface


Interface

RS232 serial interface 1For debugging purpose, with panel RJ45 socket and hot-plugging protection.

10/100M Ethernet interface 1

Working with VIEB to provide back physical interface



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SBPI IndicatorsSBPI Indicators

SBPI indicators


LINK indicatorGreen 1

For network connection

ACT indicatorGreen 1 For network

interface data traffic

Yellow 1 For error status

Green 1 For running status

Blue 1

For hot-plugging

Fail indicator

Run indicator


It is on when the physical connection is normal, and is off in other cases.

It is flashing in case of data transmitting/receiving, and the flashing frequency indicates the data traffic

It is on when the board is resetting or in error.

Flashing at 4 Hz in loading programFlashing at 1 Hz in normal runningFlashing at 0.5 Hz for standby status

During the board is inserting in the subrack, the blue indicator is on, indicating that the board contacts the backplane. Here, the handle on the front panel can be used to insert the board completely into the backplane. When the board is to be unplugged, pull out the handle on the front panel, and then the blue indicator is on, indicating that the board is ready for unplugging.



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HCOM FunctionsHCOM Functions

HCOM is front board for the shelf interconnection in the

SG7000. it provides the cascading function of the system

service processing shelves, working in load-sharing or 1+1

backup mode.



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HCOM InterfaceHCOM Interface

HCOM interface

During the operation of the board, the RST button cannot be

pressed at will, lest the normal system operation is affected.


RS232 serial interface 1 For external configuration debugging purpose

Interface10M/100M self-adaptive network interface

2 Working with SCBU to provide back physical interface



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HCOM IndicatorHCOM Indicator

HCOM running indicator


LINK indicator Green 2

ACT indicator Green 2

F A IL indicator Yellow 1

RUN indicator Green 1

Blue 1


For network connection

For network interface data traffic

For error status

For running status

For hot-plugging

It is on when the physical connection is normal, and is off in other cases.

It is flashing in case of data transmitting/receiving, and the flashing frequency indicates the data traffic

It is on when the board is resetting or in error.

It is flashing (1 s on and 1 s off) when the board is in normal status, and fast flashing at 4 Hz in loading.

It is on when the board is inserted into shelf and before the power-on, and it is also on when the board is unplugged from the shelf.



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ALUI FunctionsALUI Functions

ALUI is the monitoring board of the SG7000, in slots 16 of the service processing shelf. It indicates the system status and reports the Alarm information from other sources.

It monitors the back board fault and in-position statuses. It is connected with the equipment management board through differential serial

interface, reports the collected information, and receives commands from equipment management board for controlling indicators.

It detects the shelf temperature and sends the data to equipment management board through differential serial interface.

It collects fault detection signals and in-position signals from three power modules, synthesizes them logically, and reports them to the equipment management board as the power system working status.

When the temperature sensor does not work normally, it reports error message, and the board FAIL indicator is on at the same time.



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ALUI InterfaceALUI Interface

ALUI interface


InterfaceRS232 serial interface 1

When the board J5 and J7 are configured for shorting modules, this serial interface is used as a RS422 serial interface to connect the HSYS. When J6 and J7 are configured for shorting modules, this serial interface is used as a standard RS232 serial and is led out from the front panel.



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ALUI IndicatorsALUI Indicators

ALUI indicators

Location Color Note Meaning Status description

Red Green Off

RUN indicator Green/red 1 For board running

Fault with the communication with HSYS

Normal running Fault with board

00 Green/red 1 For back board status

Fault with board Normal running Board not in position













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ALUI IndicatorsALUI Indicators

ALUI indicator

Location Color Note Meaning Status description

Red Green Off

RUN indicator

Green/red 1 For board running Fault with the communication with HSYS

Normal running Fault with board

10 Green/red 1 For back board status Fault with board Normal running Board not in position






PWR Green/red 1 For the statuses of three power modules

All of the three power modules are in position, but one is faulty.

All of the three power modules are in position and are working normally.

None of the three power modules is in position.

FAN Green/red 1 For the status of fan shelf and the six fans

The fan shelf is in position, but any of the six fans is faulty.

The fan shelf is in position, and all fans are working normally.

The fan shelf is not in position.



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EPII /SEPU FunctionsEPII /SEPU Functions

As the E1 interface board of the SG7000, the EPII provides the 8-por

t E1 interface functions between the SBPU boards in service proces

sing shelf and external system. It also supports the TDM exchange b

etween all the timeslots in the shelf and any timeslot of the eight 2M

HWs on this board.

New version board is SEPU board ,provides 16-port E1/T1 interface.

EPII must have the same slot number with SBPU, but SEPU support

cross connection feature.



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EPII InterfacesEPII Interfaces

Interface table


E1 interface 8For connecting narrowband signaling network

2M clock output interface 2 Providing CKII with the clock abstracted in the lineInterface

8K active/standby CKII synchronous clock input interface

2 For connecting CKII board



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EPII IndicatorsEPII Indicators

Indicators

Location Color Note Meaning Normal status

RUN Green1

For board working status

It is flashing (1 s on and 1 s off) when the board is working normally, and is off when the board is abnormal.

ALM Yellow 1

For board faulty status

It is flashing (1 s on and 1 s off)

when the board is abnormal, and is

off when the board is normal



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EPII JumpersEPII Jumpers

S1: Trunk cables selection switch For 75 Ohm coaxial trunk cable, all the eight-bit switches of S1 are “ON”.

For 120 Ohm twisted pair trunk cable, all the eight-bit switches of S1 are “OFF”.

S2 (receiving) and S3 (transmitting): Connecting mode selection switches For 75 Ohm coaxial trunk cable, the unbalanced connection mode with

“transmitting end grounded” and “receiving end not grounded” is recommended, and

all the eight-bit switches of S2 and S3 are “ON”.

For 120 Ohm coaxial trunk cable, the balanced connection mode with “transmitting

end not grounded” and “receiving end grounded” is recommended, and all the eight-

bit switches of S2 and S3 are “OFF”.

S4: Hard reset switch of the board

S5: For debugging purpose



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HBIU Functions HBIU Functions

The HBIU is the Back Interface Board of the system board HSYS.

It performs the RS485 level conversion for the asynchronous serial

port signal of the system board, and implements two physical

interfaces for this asynchronous serial port.

It identifies the service shelf numbers by means of S3 DIP switches.

It provides the physical interface for the back board out-leading

Ethernet interface of the system board.



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HBIU InterfacesHBIU Interfaces

Interfaces


10/100 BT1 (Ethernet interface for back out-leading of system board) 1 For the loading of system

programs and data

COM3+ and COM3 (RS485 serial interface)

1 each For the power monitoring of power distributor box

Interface

10/100 BT2 1 Not used



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HBIU IndicatorsHBIU Indicators

Indicators


HD Green 1 For hard disk running Not used temporarily



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HBIU Switches and JumpersHBIU Switches and Jumpers

S3 switches and jumpers, ON is “0” and OFF is “1”.

Switch bit

Shelf No1 2 3 4 5 6 7 8

0 ON ON ON ON ON ON ON ON

1 OFF ON ON ON ON ON ON ON

2 ON OFF ON ON ON ON ON ON

3 OFF OFF ON ON ON ON ON ON

4 ON ON OFF ON ON ON ON ON

5 OFF ON OFF ON ON ON ON ON

6 ON OFF OFF ON ON ON ON ON

7 OFF OFF OFF ON ON ON ON ON



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SCBU FunctionsSCBU Functions

The SCBU is the back board of HCOM. It works with the HCOM

to cascade the service processing shelves of the SG7000.

It provides two external bi-directional 100 Mbps Ethernet paths to

connect two core LAN Switches in the SG7000 system. It assists

the data switching between shelves, and sends the link data on

the high-speed bus to be forwarded to other shelves to the LAN

switches through network interfaces, which are then sent to the

other service processing shelves to implement the mutual

communication between shelves. It provides one external E1 channel and provides one data channel for the

system test.



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SCBU IndicatorsSCBU Indicators

Indicators


Interface

Ethernet interface 2For inter-shelf connection and

communication

4Mbps HW

interface8 TDM interconnection between shelves

E1 interface 1 For test



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SCBU IndicatorsSCBU Indicators

Indicators

Location Color Note Meaning Normal status

RUNGreen 1

For board working status

It is flashing (1 s on and 1 s off) when

the board is normal, and is off when the

board is abnormal

ALMYellow

1

For board faulty status

It is flashing (1 s on and 1 s off) when

the board is abnormal, and is off when

the board is normal.



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SCBU Jumpers and SwitchesSCBU Jumpers and Switches

One debugging serial interface J8, one debugging network interface J9 and

one board hard reset button S1



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VIEB Functions VIEB Functions

As the back board of SBPI, the VIEB provides the back out-leading Ethernet

interface for the SBPI.



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VIEB Interfaces VIEB Interfaces

Interfaces


Interface100M base-T

interface1

It is the back out-leading interface for broadband interface board.



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Hardware Communication (1)Hardware Communication (1)

Communication between the front boards of service shelves Communication through high-speed bus

Inter-board bus bandwidth 2Gbps X 2 for high-speed and low-delay exchange of

information frames

Dual-backups and load-sharing inter-board buses to guarantee the system reliability

High-speed bus

SBPU

SBPU

SBPI

HCOM

HSYS

HSYS

HCOM

SBPI

SBPU

SBPU



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Communication between serial interface boards The boards that have CPU and are not attached to the high-speed bus in the service

shelves are controlled uniformly by the master/slave serial interface bus, including

clock board CKII, E1/T1 interface board EPII and monitoring board ALUI.

Serial interface bus

EPII

H S Y S

H S Y S

EPII

EPII

EPII

A L U I

C K I I

C K I I

EPII

S C B U

S C B U



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Clock access

Slave clock shelf (7)

...

Active clock distribution line between shelves

Internal Differential 8KHz

Primary Secondary

Standby clock distribution line between shelvesDifferential 8KHz

Slave clock shelf (1)

Master clock shelfCLKA, CLKB

2048kbit/s2048KHz E1 line

BITS

CKII

Active

CKIIStandby

E

P

I

I

E

P

I

I

E

P

I

I

E

P

I

I

E

P

I

I

E

P

I

I

Primary Secondary



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The CKII board has three clock sources: BITS clock, E1 clock and CKII board loca

l crystal oscillator.

In the master clock shelf, the TDM switching bus abstracts two groups of clocks C

TA and CTB from the active and standby CKIIs.

In the master clock shelf, the EPIIs (PM and SM) abstracts clocks from CKII.

The TDM switching bus of every shelf abstracts two groups of clocks CTA and CT

B from the PM and SM.

All EPIIs in the clock shelves abstract clocks from the TDM switching bus in the lo

cal shelf. The CTA has a higher priority and the CTB has a lower one.

The CKII board local crystal oscillator can provide 2-level clocks, so that the SG cl

ock can be locked externally.



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N7LNK Timeslot ConnectionN7LNK Timeslot Connection

15...0

3210

15...0

7654

SLPU(Lower)

SLPU (Upper)

SBPU EPII

0 Slot 0 Slot

E1 Prot numberLink Prot number



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Networking－Maintaining and Loading pathNetworking－Maintaining and Loading path

LanSwitch1

HSYS HSYS

LanSwitch

SG Frame-0SG Frame-0

BAM

VLAN IP:190.1.1.5

IP:190.1.1.70 (for example)

LanSwitch2

IP:172.8.0.8IP:172.6.0.6

IP:172.6.1.6 IP:172.8.1.8HSYS HSYS

SG Frame-1SG Frame-1

IP:172.6.2.6 IP:172.8.2.8

WS1 WS2 WS17……

Internal network

External network



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Chapter 2 SG7000 Logical StructureChapter 2 SG7000 Logical Structure

Service processing subsystem

Environment monitoring subsystem

Background management and maintenance subsystem



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Service Processing SubsystemService Processing Subsystem

HW

IP interface(FE)

High-speed bus

IP interface unit

(VIEB)

ÒµÎñ´¦Àíµ¥

Local high-speed bus

E1/T1 interface

Equipment management unit

(HSYS)

Signaling interface module

Signaling bottom processing module

Service processing modulePSTN,PLMNNo.7 signaling network

Narrowband signaling processing unit

(SLPU)

Narrowband E1/T1 interface unit

EPII

System support module

Clock unit

(CKII)

ÒµÎñ´¦Àíµ¥

Broadband signaling processing unit

(SBPU)

External clock source

TDM switching bus

LAN drive and IP distribution unit

(SBPI)Soft switch equipmentFE



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Environment Monitoring SubsystemEnvironment Monitoring Subsystem

The subsystem is composed of ALUI and power monitoring board. The ALUI monitors the working statuses of the unit shelf, including the inner-

shelf ambient temperature, power status, and the working status of the back

boards from HSYS receiving I/O boards (such as SBPU and HCOM). And it

displays the statuses on the front indicators.

The power monitoring board of the power distributor box monitors the workin

g status of the power distributor box. It is connected with the HBIU of the HS

YS’s back board through serial interface, collecting the working statuses of t

he power distributor box and reporting to the HSYS.



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Background Management and Maintenance SubsystemBackground Management and Maintenance Subsystem

It is composed of background administration module (BAM), charging server

(BAU), management and maintenance workstation and remote management

and maintenance interface equipment.

System loading The HSYS implements loading from BAM in the FTP mode through network card

1 and network card 2. The SBPU/SBPI implements loading through the HSYS of

local shelf. The SLPU programs and data are loaded through the SBPU.

Equipment management During the initialization, it implements the active/standby arbitration for SBPU,

HSYS, HSCU and CKII and the active/standby switchover function.



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Chapter 3 SG7000 Message FlowChapter 3 SG7000 Message Flow

Hardware structure

Signaling processing

unit

Inter-shelf connection equipment

Equipment management unit

LAN drive and IP distribution unit

Narrowband E1/T1 interface

unit

Monitoring unit Clock unit

Other service shelves

External clock source

E1/T1 interface

PSTN, PLMN etc. No.7 signaling network

10M/100M interface IP interface unitIP network

System high-speed bus

TDM switching bus

Serial interface bus

Terminal maintenance module



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Message FlowMessage Flow

Message flow direction

PSTN/PLMN signaling message -> SG7000 narrowband E1/T1 interface unit -> TDM s

witching bus and inter-shelf connection -> Implementing intra-shelf or inter-shelf semip

ermanent connection -> Signaling processing unit determines to forward the signaling

message to PSTN/PLM or broadband IP network according to the destination signaling

point information in the message. If the message will be forwarded to PSTN/PLMN, the narrowband E1/T1 interface unit implements the f

orwarding function, which is like the function of narrowband STP (signaling transition point).

If the message will be forwarded to broadband IP network, the signaling processing unit packets/unpac

kets the messages. After the IP distribution by the LAN drive and IP distributor unit, the messages arriv

e at the IP network through the IP interface unit.

The flow is the converse case for the signaling processing from IP network to traditional narrowb

and network.



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Thanks!Thanks!

ua 011102 sg7000 hardware structure issue1.1 20050103.ppt

Documents

11 backup

power distributor

signaling

highspeed

panel rj45

tdm switching

differential

meaningfor