Abstract :
Subscriber access capacity corresponding to the first level of the synchronous digital hierarchy (SDH), which has been agreed upon as an international standard for broadband ISDN, is discussed. The subscriber access reference configuration defined by the International Consultative Committee for Telephone and Telegraph (CCITT) is described, as is the structure of the transmission network. Suggested transmission systems or systems already implemented are then examined. The discussion covers asynchronous transfer mode, multiplexing and framing, trunk line systems, subscriber line systems, optical transmission, and TV distribution.<>
Keywords :
ISDN; broadband networks; multiplexing; optical links; packet switching; subscriber loops; ATM; B-ISDN; CCITT; SDH; TV distribution; asynchronous transfer mode; broadband ISDN; framing; multiplexing; optical transmission; subscriber access reference configuration; subscriber line systems; synchronous digital hierarchy; transmission network; trunk line systems; Bit rate; Frequency modulation; HDTV; ISO standards; Microelectronics; Optical fibers; Optical network units; Synchronous digital hierarchy; TV; Telephony;
