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Broadband access network deployment in Brasil: toward a low cost HFC implementation.

Workshop on Access Network Construction and Installation Techniques (ANCIT) CSELT, Turin - 30 - 31 March 1998. Broadband access network deployment in Brasil: toward a low cost HFC implementation. M. Giansante and A.C.G. Bordeaux R. CPqD_TELEBRÁS J. Davide Felix TELEGOIÁS.

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Broadband access network deployment in Brasil: toward a low cost HFC implementation.

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  1. Workshop on Access Network Construction and Installation Techniques (ANCIT) CSELT, Turin - 30 - 31 March 1998 Broadband access network deployment in Brasil:toward a low cost HFC implementation. M. Giansante and A.C.G. Bordeaux R. CPqD_TELEBRÁS J. Davide Felix TELEGOIÁS

  2. MINISTRY OF COMMUNICATIONS TELEBRAS SYSTEM - STB - TELEBRAS E.C.T. CPqD TELCO A TELCO B ... EMBRATEL TELEGOIÁS TELEBRÁS SYSTEM - Organisation Chart 27 TELCOs

  3. CPqD Telebrás

  4. 1994/5_Technical Advisory for the first generation FITL systems (point-to-point such as Digital Loop Carrier) ; 1996/7_Technical Advisory for Hybrid Fibre/Coax networks. 1993 _ Initial deployment of DLCs; 1994 _The bidding process for HFC network construction was started; 1995 _ Regulatory changes in CATV market; 1996 _ The deal with the HFC supplier was made. Optical fibres in the access network TELEGOIÁS TELEBRÁS

  5. Demand for CATV services; New revenue opportunities; Possibility to provide POTS; Becoming more competitive to face new players in the near future. HFC TELEBRÁS considerations:Main driving forces

  6. HFC and FITL transceptors integrated at the same Service Access Point; Whole number of earlier POTS serving areas; Fibre node not bigger than 1920 hp; Wavelength transmission requirements in 1.3m and 1.55m. HFC TELEBRÁS considerations:Main characteristics of the Network Planning

  7. The regulatory changes X CATV purpose; FITL/HFC integration in the same cabinet; Coverage of the coax distribution network; Cost effectiveness: 440 hp X 1920 hp fibre nodes; 1.3 m as a solution for better flexibility. HFC TELEGOIÁS case

  8. PEC 4878 CPS 29273 NOE 24838 CTO 39029 LES 17740 TMD 4436 CPL 3550 ALV 25652 SUL 25724 SDO 19514 CMS_ MultiService Centre JAM 4032 CDI_ Insertion and Distribution Centre SBV 7540 NSC 4878 Network Topology

  9. 80 CATV CHANNELS ELECTRICAL AMPLIFIER 1550nm TO CDI SCR MOD 16 OPTICAL TRANSCEIVER M A T R I X SCR MOD 16 64 64 SCR MOD 16 ELECTRICAL AMPLIFIER 1310nm TO CDI OPTICAL TRANSCEIVER 8 DATA SYSTEM SCR MOD 16 M A T R I X SYSTEM MANAGMENT SCR MOD 16 1 1310nm FROM CDI OPTICAL RECEIVER SUBSCRIBER MANAGMENT 64 64 MOD SCR 16 Test equipments CMS Architecture

  10. CABLE MODEM/ CABLE FONE INSERTION 1310nm LOCAL ANALOG INSERTION OPTICAL TRANSMITER DOWNSTREAM OPTICAL TRANSMITER TO THE FIBER NODES AMPLIFIER 1:4 1:4 1310/1550nm OPTICAL TRANSMITER OPTICAL RECEIVER 1:4 1:8 AMPLIFIER CMS OPTICAL TRANSMITER SMIU UPSTREAM CABLE MODEM/ CABLE FONE DROP 1310nm OPTICAL RECEIVER 1:4 AMPLIFIER OPTICAL RECEIVER 1:4 1310nm OPTICAL TRANSMITER 1:4 CMS OPTICAL RECEIVER 1:4 OPTICAL RECEIVER 1:4 CDI Architecture FROM THE FIBER NODES

  11. Fibre Node Layout OPTICA FIBER FIBRA 440 HP ÓPTICA 1310nm FIBER NODE LEG 1310nm AMPLIFIER ONU RXO COUPLER POWER SUPPLY 110 HP 110 HP FOR OTHER LEG 110 HP 110 HP AMPLIFIER TAP FOR OTHER LEG FIBER NODE LEG BUILDING COUPLER AMPLIFIER TAP HOUSE

  12. Network Cost Breakdown * the civil works and enclosure costs are diluted in the others

  13. The regulatory changes forced TELEGOIÁS to find other killer application; The final network was determinated by the Installed First Cost; Changes on the earlier project saved 25% on the final network cost per home-passed, allowing the growth of the plant from 108,407 hp to 211,084 hp; Therefore, higher service penetration and performance can be reached from now on. Conclusions

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