Protected muldem with independent protective switching of circui

Details Protected muldem with independent protective switching of circui Protected muldem with independent protective switching of circui

1980-06-03

1983-03-01

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

H04J 314

Patent

active

043756824

ABSTRACT:
A muldem (100) includes a transmit multiplexer section (103, 104) combining a variety of low speed and intermediate speed data inputs into a single high speed data output and a demultiplexer section providing low and intermediate speed outputs from a high speed input. A monitor tests data paths of the muldem for detection of malfunctions and initiates protective switching through a standby alternate data path around the low or intermediate speed circuits and, independently, around the high speed circuits.

REFERENCES:
patent: 4146749 (1979-03-01), Pepping et al.
patent: 4254496 (1981-03-01), Munter
Product Description Digital Multiplexer/Demultiplexer DMX-13A/B/C, Rockwell International, pp. 1-19/20, 1-19-79.

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