Transmit-receive unit for digital loop carrier transmission syst

Multiplex communications – Wide area network – Packet switching

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370 68, H04Q 1104

Patent

active

054084679

ABSTRACT:
A transmit-receive unit (TRU) which includes interface circuitry for interconnection with another TRU. Interconnect lines can carry PCM data to and from a line interface unit as well as share system information between the two transmit-receive units. An embedded operation channel data path multiplexer (EDP) also permits transmission of data between the transmit-receive unit and a bank controller unit over a service request lead.

REFERENCES:
patent: 4394756 (1983-07-01), Canniff
patent: 4763316 (1988-08-01), Schaich et al.
patent: 4833673 (1989-05-01), Chuo et al.
patent: 5014261 (1991-05-01), Shinbashi et al.
patent: 5046067 (1991-09-01), Kimbrough
patent: 5063564 (1991-11-01), Crandall et al.

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