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Sanjay

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SUMMER TRAINING PROJECT REPORT

SUMMER TRAINING PROJECT REPORT

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  • hi...plz send me ppt of dis to my mail id vijju_s@ymail.com....plz plz...
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  • 1. SIX WEEKS TRAINING IN BSNL(J&K,SRINAGAR)
  • 2.
    • Submitted by
    • SANJAY
    • ECE-A
    SEMINAR ON OCB-283
  • 3. GENERAL ARC HITECTURE OF OCB-283 SUBSYSTEMS & FUNCTIONS OF OC B-283
  • 4.
    • Exchange has got 3 basic subsystems :-
        • 1 SUBSCRIBER ACCESS SUBSYSTEM
        • 2 CONNECTION & CONTROL SUBSYSTEM
        • 3. OPERATION & MAINTENANCE SUBSYSTEM
    INTRODUCTION OF OCB-283
  • 5. COMMUNICATION MULTIPLEX OM COM ETA PU PE SMT URM MCX CSNL CKTS LR ( 4MB / S) DT LR LR TMN 2 MB/S PCM CSND BT OCB-283 FUNCTIONAL DIAGRAM SMA SMX MQ GX MR TX TR PC CONTROL SUBSYSTEM
  • 6. CONTROL SUBSYSTEM
    • CONTROL SUBSYSTEM SUPPORTS ALL THE COMOMN CONTROL FUNCTIONS OF EXCHANGE WHICH SETUP & RELEASE A CALL
    • COMMON CONTROL FUNCTIONS ARE :- MR,TR,TX,MQ,GX & PC
    • IN SOFTWARE FORM THEY ARE CALLED LOGICAL MACHINES
    • HARDWARE COMPONENT IS CALLED MAIN CONTROL STATION SMC
    • ANY ONE OR MANY CONTROL FUNTIONS CAN BE LOADED IN A HARDWARE STATION.
  • 7. ROLE OF COMMON CONTROL FUNCTIONS
    • THE MAIN CONTROL STATION SMC SUPPORTS THE FOLLOWING COMMOMN CONTROL FUNCTIONS FOR DOING THE DEFINED JOBS
    • - MR CALL HANDLER( OVERALL CONTROLLER OF CALLSETUP & RELASE)
    • - TR TRANSLATOR (DIGIT ANALYSIS & DATA )
    • - TX CHARGING DEVICE ( TAXING & METERS)
    • - MQ MESSAGE DISTRIBUTOR (MARKING )
    • - GX MATRIX SYSTEM HANDLER (SWITCHING)
    • - PC CCS 7 SIGNALLING LINKS NETWORK CONTROLLER (MONITORING OF PUPE)
  • 8. OM COM ETA PU PE SMT URM MCX CSNL CKTS LR ( 4MB / S) DT LR LR COMMUNICATION MULTIPLEX TMN 2 MB/S PCM CSND BT OCB-283 FUNCTIONAL DIAGRAM SMA SMX O & M SUBSYSTEM MQ GX MR TX TR PC
  • 9. HARDWARE ARCHITECTURE OF OCB-283
  • 10. HARDWARE ARCHITECTURE OF OCB-283 LINK TO TMN SMA 2 TO 64 STS 1x3 SMC SMM MCX SMX (1 TO 8)x2 MAS (1 TO 4) A&B MIS 1 A&B SMC (2 TO 32) SMT (1 TO 64)x2 OPERATION &MAINTENANCE TERMINALS CONTROL TERMINAL CIRCUITS VDU TTY 16 LR’S LR LR PCM CSNL CSND CSED 2TO 16 2 TO 4
  • 11. OCB-283 COMPONENTS
    • 1. SUBSCRIBER ACCESS UNIT CSN :- CALLED DIGITAL SUBSCRIBER CENTRE CSN
      • IT CAN BE LOCAL -> CSNL
      • OR DISTANT ->CSND
    • 2.CIRCUIT TERMINATION UNIT SMT :- CIRCUITS ARE TERMINATED ON TRUNK MULTIPLEX CONNECTION UNIT ITS FUNCTION IS CALLED URM
  • 12.
    • 3. COMMON CONTROL UNITS:
    • CALLED MAIN MULTIPROCESSOR CONTROL STATION SMC , CONTROL UNITS SUPPORT FOLLOWING CONTROL FUNCTIONS MR,TR,TX,MQ,GX,& PC IN SOFTWARE FORM
    • 4. AUXILIARY UNITS:-
    • CALLED SMA THESE UNITS SUPPORT FUNCTIONS FOR SIGNALS & TONES: ETA & PU/PE
    OCB-283 COMPONENTS
  • 13.
    • 5. SWITCHING MATRIX UNIT
    • CALLED SWITCHING MATRIX STATION SMX COMPRISES OF
      • SWITCHING MATRIX-> MCX
      • SWITCHING SOFTWARE FUNCTION CALLED -> COM
    • 6.OPERATION & MAINTENANCE UNIT SMM :- ITS FUNCTION IS CALLED OM
    • 7. COMMUNICATION MULTIPLEX :- THESE ARE MIS & MAS
    OCB-283 COMPONENTS
  • 14. HARDWARE STATIONS OF OCB-283
    • CSN : SUBS.ACC UNIT
    • SMC :MAIN CONTROL STATION
    • SMA :AUXILIARY EQPT CONTROL STATION
    • SMT :TRUNK CONTROL STATION
    • SMX :MATRIX CONTROL STATION
    • SMM :MAINTENANCE STATION
    • STS :SYNCH. TIME BASE
    • MIS :INTERSTATION COMM. MULTIPLEX
    • MAS :STATION ACCESS COMM. MULTIPLEX
    LINK TO TMN SMA STS SMC SMM MCX SMX MAS MIS SMT OPERATION &MAINTENANCE TERMINALS CONTROL TERMINAL CIRCUITS VDU TTY PCM CSNL CSND CSED SMC SMC
  • 15. HARDWARE STATIONS OF OCB-283
    • CSN: SUBS. ACCESS UNIT
    LINK TO TMN SMA STS SMC SMM MCX SMX MAS MIS SMT OPERATION &MAINTENANCE TERMINALS CONTROL TERMINAL CIRCUITS VDU TTY PCM CSNL CSND CSED SMC SMC
  • 16. HARDWARE STATIONS OF OCB-283
    • CSN :SUBS.ACC UNIT
    • SMC :MAIN CONTROL STATION
    LINK TO TMN SMA STS SMC SMM MCX SMX MAS MIS SMT OPERATION &MAINTENANCE TERMINALS CONTROL TERMINAL CIRCUITS VDU TTY PCM CSNL CSND CSED SMC SMC