ANCIT WORKSHOP Torino, 30-31 March 1998 Workshop on Access Network Construction and Installation Techniques (ANCIT) CSELT, Turin - 30 - 31 March 1998 Broadband.

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ANCIT WORKSHOP Torino, March 1998 Workshop on Access Network Construction and Installation Techniques (ANCIT) CSELT, Turin 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

ANCIT WORKSHOP Torino, March 1998 CPqD TELEBRAS SYSTEM - STB - MINISTRY OF COMMUNICATIONS TELEBRAS... TELCO B TELCO A TELEGOIÁS EMBRATEL E.C.T. TELEBRÁS SYSTEM - Organisation Chart 27 TELCOs

ANCIT WORKSHOP Torino, March 1998 CPqD Telebrás

ANCIT WORKSHOP Torino, March 1998 n 1994/5_Technical Advisory for the first generation FITL systems (point-to-point such as Digital Loop Carrier) ; n 1996/7_Technical Advisory for Hybrid Fibre/Coax networks. Optical fibres in the access network n 1993 _ Initial deployment of DLCs; n 1994 _The bidding process for HFC network construction was started; n 1995 _ Regulatory changes in CATV market; n 1996 _ The deal with the HFC supplier was made. TELEBRÁS TELEGOIÁS

ANCIT WORKSHOP Torino, March 1998 HFC TELEBRÁS considerations: Main driving forces n Demand for CATV services; n New revenue opportunities; n Possibility to provide POTS; n Becoming more competitive to face new players in the near future.

ANCIT WORKSHOP Torino, March 1998 HFC TELEBRÁS considerations: Main characteristics of the Network Planning n HFC and FITL transceptors integrated at the same Service Access Point; n Whole number of earlier POTS serving areas; n Fibre node not bigger than 1920 hp; Wavelength transmission requirements in 1.3  m and 1.55  m.

ANCIT WORKSHOP Torino, March 1998 HFC TELEGOIÁS case n The regulatory changes X CATV purpose; n FITL/HFC integration in the same cabinet; n Coverage of the coax distribution network; n Cost effectiveness: 440 hp X 1920 hp fibre nodes; 1.3  m as a solution for better flexibility.

ANCIT WORKSHOP Torino, March 1998 Network Topology CDI_ Insertion and Distribution and Distribution Centre Centre CMS_ MultiService Centre SDO ALV SBV 7540 NSC 4878 JAM 4032 SUL CPL 3550 LES PEC 4878 CTO TMD 4436 CPS NOE 24838

ANCIT WORKSHOP Torino, March 1998 CMS Architecture

ANCIT WORKSHOP Torino, March 1998 CDI Architecture FROM THE FIBER NODES

ANCIT WORKSHOP Torino, March 1998 Fibre NodeLayout AMPLIFIER TAP COUPLER AMPLIFIER FIBER NODE LEG HOUSE COUPLER TAP AMPLIFIER BUILDING FIBER NODE LEG POWER SUPPLY FOR OTHER LEG RXO ONU FIBRA ÓPTICA 1310nm OPTICA FIBER 1310nm 110 HP 440 HP

ANCIT WORKSHOP Torino, March 1998 Network Cost Breakdown * the civil works and enclosure costs are diluted in the others

ANCIT WORKSHOP Torino, March 1998 Conclusions n The regulatory changes forced TELEGOIÁS to find other killer application; n The final network was determinated by the Installed First Cost; n 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; n Therefore, higher service penetration and performance can be reached from now on.