The Architecture and Technology for the All-Fiber Loop

Summary: Since 1983, when high speed multiplexers operating over fiber feeder cables were first introduced, the race has been on to fiber the 'last mile' of the telephone distribution network. This year several fiber distribution systems have been proposed. AT&T's system, the first in service in Augeust 1988, is based on the SLC(R) Series 5 Digital Loop Carrier System, which has been extended to include the distribution plant. An all fiber network is completed by using DDM-1000 (DS3) or higher rate multiplexers in the feeder plant. This first Fiber-to-the-Home system will enable the Telephone Companies to prepare for future wideband services in an evolutionary and economical manner.