Digital Group Multiplexers (DGM). Volume 2. Section 3.0, 5.0, 7.0, 15.4

摘要

The technical objective of this program was to develop a family of Digital Group Multiplexers (DGM) which form an integral part of the communications Nodal Control Element (CNCE) and the Transmission Facilities associated with the Automatic Central Office Communications, AN/TC-39 (Automatic Switch). The DGM consists of 13 different equipments which 3 are mentioned in this technical document. These are Loop Group Multiplexer (LGM), Remote Loop Group Multiplexer (RLGM), and the Remote Multiplexer Combiner (RMC). The multiplexers and cable transmission equipments will be employed primarily in technical communications control facilities to serve clusters of digital subscribers in a switched network and to provide digital transmission to the Radio Park Via radio or cable. (Author)