Multiplex equipment monitoring apparatus

Details Multiplex equipment monitoring apparatus Multiplex equipment monitoring apparatus

1983-12-27

1986-01-28

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370100, 371 49, H04J 116, H04J 306

Patent

active

045675872

ABSTRACT:
Monitoring or error checking equipment for use with multiplexing circuitry at the transmission end of a communication line is disclosed which accomplishes a large reduction in circuitry by using transmitter generated low speed timing signals and clock signals to demultiplex the output data into nonsymmetrical or timing irregular data. The plurality of channels of nonsymmetrical data are then each checked for parity and framing pulses as well as clock activity by time multiplexed switching equipment on a cyclical basis.

REFERENCES:
patent: 4063040 (1977-12-01), Fontanes et al.
patent: 4071887 (1978-01-01), Daly et al.
patent: 4326291 (1982-04-01), Marsh et al.
patent: 4387456 (1983-06-01), Creteav

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