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GENERAL ARCHITECTURE OF OCB-283

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GENERAL ARCHITECTURE OF OCB-283
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GENERAL ARCHITECTURE OF OCB-283

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  1. GENERAL ARCHITECTURE OF OCB-283 SUBSYSTEMS & FUNCTIONS OF OCB-283

  2. GENERAL FUNCTIONAL BREAKDOWN OF ALCATEL 1000 E-10 (OCB-283) CCITT #7 SIGNALLING NETWORK TELEPHONE NETWORK SUBSCRIBER ACCESS SYSTEM CONNECTION AND CONTROL DATA NETWORK VALUE ADDED NETWORK DISK OPERATION AND MAINTENANCE O&M NETWORK PABX MAGTAPE

  3. OCB-283 ARCHITECTUREOCB-283 COMPRISES OF FOLLOWING 3 SUBSYSTEMS • SUBSCRIBER ACCESS SUBSYSTEM • CONTROL & CONNECTION SUBSYTEM • OPERATION & MAINTENANCE SUBSYTEM CCITT #7 SIGNALLING NETWORK TELEPHONE NETWORK SUBSCRIBER ACCESS SYSTEM CONNECTION AND CONTROL DATA NETWORK VALUE ADDED NETWORK DISK OPERATION AND MAINTENANCE O&M NETWORK PABX MAGTAPE

  4. INTRODUCTION OF OCB-283 • Exchange has got 3 basic subsystems :- • 1 SUBSCRIBER ACCESS SUBSYSTEM • 2 CONNECTION & CONTROL SUBSYSTEM • 3. OPERATION & MAINTENANCE SUBSYSTEM

  5. INTRODUCTION OF OCB-283 • 1. Subscriber Access Subsystem:- • This is treated as an independent entity • Every Subscriber Connecting Equipment Rack has got its Signalling Point Number to operate in Common Channel Signalling mode with rest of the exchange Subsystems.

  6. INTRODUCTION OF OCB-283 • 2. Control & Connection Subsystem is the block consisting of • A-CONTROL FUNCTIONS • B-CONNECTION & SWITCHING EQUIPMENTS

  7. INTRODUCTION OF OCB-283 • A-CONTROL FUNCTIONS • COMPRISE OF COMMON CONTROL equipments which; • process • monitor • & control the call setup & release

  8. INTRODUCTION OF OCB-283 3. OPERATION & MAINTENANACE SUBSYTEM :- FOR O&M OF EXCHANGE BY OPERATORS

  9. LET US NOW UNDERSATANDCOMMON CHANNEL SIGNALLINGBEFORE GOING FURTHER

  10. OCB-283 FOLLOWS CCITT-NO 7 SIG.PROTOCOL FOR COMMON CHANNEL SIGNALLING COMMON SIGNALLING CHANNEL EXCHANGE B EXCHANGE A VOICE CHANNELS EXCHANGE C SIGNALLING TIME SLOT LINK CARRIES ALL THE SIGNALLING FOR ALL THE VOICE CHANNELS BETWEEN TWO EXCHANGES

  11. functional architecture of ocb-283

  12. MQ GX MR TX TR PC OCB-283 FUNCTIONAL DIAGRAM CSNL SMX LR (4MB / S) DT CSND BT 2 MB/S PCM MCX LR LR SMT URM COM ETA PU PE CKTS SMA COMMUNICATION MULTIPLEX TMN OM

  13. MQ GX MR TX TR PC SUBSCRIBER ACCESS SUBSYSTEM CSNL SMX LR (4MB / S) DT CSND BT 2 MB/S PCM MCX LR LR SMT URM COM ETA PU PE CKTS SMA COMMUNICATION MULTIPLEX TMN OM

  14. MQ GX MR TX TR PC CONNECTION SUBSYSTEM CSNL SMX LR (4MB / S) DT CSND BT 2 MB/S PCM MCX LR LR SMT URM COM ETA PU PE CKTS SMA COMMUNICATION MULTIPLEX TMN OM

  15. CONTROL SUBSYSTEM MQ GX MR TX TR PC OCB-283 FUNCTIONAL DIAGRAM CSNL SMX LR (4MB / S) DT CSND BT 2 MB/S PCM MCX LR LR SMT URM COM ETA PU PE CKTS SMA COMMUNICATION MULTIPLEX TMN OM

  16. MQ GX MR TX TR PC OCB-283 FUNCTIONAL DIAGRAM CSNL SMX LR (4MB / S) DT CSND BT 2 MB/S PCM MCX LR O & M SUBSYSTEM LR SMT URM COM ETA PU PE CKTS SMA COMMUNICATION MULTIPLEX TMN OM

  17. IN OCB-283

  18. CALL PROCESSING MCX CSNL CSNL SC SC VC VC CSND URM ETA SC COM PU/PE CKTS SC FUNCTIONAL EQUIPMENTS INVOLVED IN CALL HANDLING MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM

  19. ‘B’ ‘A’ MCX CSNL CSNL SC SC VC VC CSND URM ETA SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM CALL PROCESSING NEW CALL ORIGINATION • TS-16 OF LR 0 &LR 1 OF CSN ARE SIGNALLING CHANNELSSC BETN. CSN & THE EXCHANGE EQUIPMENT (PU/PE)

  20. ‘B’ ‘A’ MCX CSNL CSNL SC SC VC VC CSND URM ETA SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM CALL PROCESSING NEW CALL ORIGINATION • TS-16 OF LR 0 &LR 1 OF CSN ARE SIGNALLING CHANNELSSC BETN. CSN & THE EXCHANGE EQUIPMENT (PU/PE) • NEW CALL MESSAGE COMES ON SIG.CHANNEL SC

  21. ‘B’ ‘A’ MCX CSNL CSNL SC SC VC VC CSND URM ETA SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM CALL PROCESSING CALLING SUBS. COS IDENTIFICATION • NEW CALL MESSAGE IS SENT TO MR BY PUPE.

  22. ‘B’ ‘A’ MCX CSNL CSNL SC SC VC VC CSND URM ETA SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM CALL PROCESSING CALLING SUBS. COS IDENTIFICATION • NEW CALL MESSAGE IS SENT TO MR BY PUPE. • MR REQUESTS CALLING SUBSCRIBER DATA FROM TR ..OVER MIS • TR PROVIDES CALLING SUB’S COS DATA TO MR

  23. ‘B’ ‘A’ MCX CSNL CSNL SC SC VC VC CSND URM ETA SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM CALL PROCESSING MCX SIDE ADDRESS OF VC • MR REQUESTS MQ TO PROVIDE ADDRESS OF VC ON MCX (LR-LRX CORRESPONDENCE) • MQ PROVIDES MCX SIDE ADDRESS TO MR

  24. ‘B’ ‘A’ CALL PROCESSING DIAL TONE PROVISION TO CALLING SUBS. MCX CSNL CSNL SC SC VC DT CSND URM ETA • MR ORDERS MCX FOR CONNECTING DIAL TONE TO CALLING SUBS. ON LRS-TS VC • DIAL TONE IS PROVIDED FROM MCX (DIALTONE GIVEN BY ETA’s TS-LRE TO MCX) SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM

  25. ‘B’ ‘A’ CALL PROCESSING RECEPTION OF FIRST DIGIT MCX CSNL CSNL SC SC VC CSND URM ETA RGF • FIRST DIGIT IS RECEIVED VIA VOICE CHANNEL VC IN RGF OF ETA (FOR DTMF SUBS.) SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM

  26. ‘B’ ‘A’ CALL PROCESSING RECEPTION OF FIRST DIGIT MCX CSNL CSNL SC SC VC CSND URM ETA RGF • FIRST DIGIT IS RECEIVED VIA VOICE CHANNEL VC IN RGFOF ETA (FOR DTMF SUBS.) • ETA SENDS IT TO MR ON MAS • DIAL TONE IS CUT OFF ON ORDERS OF MR SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM

  27. ‘B’ ‘A’ CALL PROCESSING DIGIT ANALYSIS MCX CSNL CSNL SC SC VC CSND URM RGF • FIRST FEW DIGITS ARE PRE-ANALYSED ON REQUEST OF MR BY TR • REMAINING DIGITS MAY BE STILL BEING RECEIVED SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM

  28. CALL PROCESSING SELECTION ‘B’ ‘A’ MCX CSNL CSNL SC SC A B VC CSND URM RGF • ANALYSIS OF DIGITS COMPLETED CALLED PARTY COS OBTAINED ROUTING OF CALL - • MR ORDERS CSN-B TO TEST ‘B’ & GIVE VC FOR ‘B’ • CSN-B TESTS ‘B’ AND GIVES RINGING TO ‘B’ • MCX GIVES RBT TO ‘A’ SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM

  29. ‘B’ ‘A’ CALL PROCESSING CALLED PARTY ANSWERS MCX CSNL CSNL SC SC VC-B VC-A CSND URM RGF • CALLED PARTY B GOES OFF HOOK • CALLED PARTY’S CSN SENDS LOOP CONDITION & VC-B INFORMATION TO MR OVER SC VIA PUPE • RINGING CURRENT & RBT ARE STOPPED SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM

  30. ‘B ‘A’ CALL PROCESSING BOTHWAY CONNECTION MCX CSNL CSNL SC SC VC-B VC-A CSND URM RGF • TWO UNIDIRECTIONAL CONNECTIONS ARE ESTABLISHED IN MCX ON ORDER OF MR VIA GX BETWEEN VC-A & VC-B • ‘A’ & ‘ B ‘ CAN NOW CONVERSE SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM

  31. ‘B ‘A’ CALL PROCESSING CHARGING (METERING) MCX CSNL CSNL SC SC VC-B VC-A CSND URM RGF • TWO UNIDIRECTIONAL CONNECTIONS ARE ESTABLISHED IN MCX ON ORDER OF MR VIA GX • ‘A’ & ‘ B ‘ CAN NOW CONVERSE • CHARGING IS STARTED BY TX - MR RELEASED SC COM PU/PE CKTS SC MAS TX TR MR MQ GX PC MIS SC: Signalling channel VC: Voice channel OM

  32. OCB-283 EXCH AND YOUR METER IS RUNNING HERE!!!