This presentation describes the working functionality of HCTE (C&C08).

It fully details the process of call establishment and signaling paths through HCTE.

BOARD

RACK

MODULE

FRAME

RACKSMODULES

FRAMES

ASLCARD

1

2

32

DRV BNETOPT

NODDT

DT

DT

MPU SIG

ANALOG SUBSCRIBERS “BORSCHT” FUNCTION

INTEROFFICE DIGITAL TRUNKINTERFACE, 16 DTF = 960 CHANNELSAND 1 DTF = 2 PCM

PERFORMS COMMUNICATION

b/w MPU AND BOARDS IN USER

AND TRUNK FRAMES.

PERFORMS EQUIPMENT CONTROL, RECIEVES ASL AND TRUNK STATE THROUGH NOD BOARD AND SEND CORRESPONDING COMMANDS TO THEM. CONTROLS THE SIGNALS OF SIG BOARD (DIAL TONE, VOICE SIGNALS). ANALYZE THE CALLED AND CALLING PARTIES TO HELP OUT SWITCHING FOR THE NOS OF SAME SM.

RECEIVES DTMF SIGNALS,DRIVES HW SIGNALS ANDSENDS PORT SIGNALS

INTRA-MODULE SWITCHINGNETWORK BOARD, 4K X 4KSWITCHING NETWORK

40.96 Mbps OPTICAL INTERFACE TO OBC BOARD OF AM/CM OF HCTE.IT’S A PHYSICAL TERMINATION CARD.

Signaling path

Speech path

BAM

BCP

QSI FSN BAC

SPD

SRC

CID DISPLAY

SPCCPC

BCC

AMP

CDP

ALARM

SNU CNU

BDR

NCC

OBC

ET-16

STU

CKD CKS

EXCHANGEAM/CM

HDLCH

DLC

HDLC

HDLC2Mbps

8Mbps

393M O

ptical Interface

10 Mbps TCP/IP

10Mbps

2.048Mbps2.048KHz8KHz

2.048Mbps8KHz

SERIAL LINKRS-232

SERIAL LINK

RS-232 TCP/IP

WORK STATION

CNET

CCM

LIM

SRM SPM

CPM

CKM

SM

16 E1s

63 STM-1

Communication control module that

interlinks CPM, LIM,SPM and CNET

through HDLCAdmin and

maintenance processing and

online data setting.

Alarm board for all system alarm processing.

BUS control process board.Used for BUS

communication b/w AMP and

CDP.

Central database processing and management of common

resources.Deals location selection of PBX,

trunk line etc.

Provides communication bridge b/w OAM and WS.It consists of KVMS, LAN switches, Server and storage media.All the database and programs required by the system are stored here.

Centralized clock synchronization to

the whole exchange.

High Speed interface board that interconnects LIM,CNET and CCM.Provides Speech and Signaling path.

Line Interface Module provides linkage of

incoming and outgoing traffic to the AM/CM..It contains optical and

electrical interfaces at different data rates defined along with a specified capacity.

This unit performs routing and switching. It can understand the

prefixes. SNU is skirt N/W unit and CNU is the main central N/W unit.

NCC performs N/W communication control and BDR is the BUS driver for

the interface of this module.

Central Processing Module performs various important

tasks related to call processing. It performs alarm monitoring and processing, ticket

generation for the calls, duration calculation,

billing and routing etc.Service processing module provides a

variety of interfaces like R2

No.5 and implements SS7 system, provides signaling path.

MHI

Multi highway interface is a part

of LIM and provides 2M & 8M

HW

Shared resource module provides DTMF, MFC, Conference Telephone and FSK display device services.SPD is signal tone while SRC is shared resource card.

Des

tinat

ion

Work Station contains a software program that is used to configure boards, monitor

alarms, analyze traffic statistics, access the data at

BAM storage media and perform several other useful

tasks.

FOR DETAILS AND QUERIES PLEASE CONTACT.