Signal monitoring and controlling system in a time division swit

Details Signal monitoring and controlling system in a time division swit Signal monitoring and controlling system in a time division swit

1978-12-08

1982-04-27

Stewart, David L.

Multiplex communications

Wide area network

Packet switching

370 56, 370 58, H04J 312

Patent

active

043274366

ABSTRACT:
A supervisory and control system for a time division switching system supervising and controlling signals transferring to and from all or some of line interface equipment such as a digital trunk, analog trunk equipment, the intra-office line concentrators or remote line concentrator through a signal path. In the signal control, the signal is classified into two kinds of signals: one for cyclically controlling a state and the other for randomly controlling the same. Those signals are multiplexed in a single time slot to control the various line interfaces. Signal time slots having different multiframes and signal time slots with a plurality of periods are supervised depending on a signal path class thereby to reduce the number of laying cables among interframes.

REFERENCES:
patent: 3778555 (1973-12-01), Nordling
patent: 3997727 (1976-12-01), Platts
patent: 4001514 (1977-01-01), Wurst
patent: 4016367 (1977-04-01), Law
patent: 4110562 (1978-08-01), Mogd

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