Broadband PABX for video, audio and data communication - includes narrow band-broadband signalling adaptor modules and connection computer for control of broadband switch matrix

摘要

The exchange is based on a broadband switch matrix (BB-V) with spatial multiplexing between 32 input/output connections for broadband signals to be transmitted. Optical transmission paths (OUE) link the first 24 connections to broadband terminals (BB-E1 etc.). The 25th connection is wired to a subscriber connection unit (TAE) for the public switched broadband network (VBN). Two further connections lead to ISDN and 2 Mbit/s satellite networks, and three to a video/audio conference system. The computer (SB/BB-C) is served by a standard V24 serial interface.