Switching arrangement for activating electrical devices

Details Switching arrangement for activating electrical devices Switching arrangement for activating electrical devices

1994-02-15

1995-10-31

Chin, Stephen

Telephonic communications

Multi-line or key substation system with selective switching...

Switching or supervision feature

379102, 379104, 379105, 379162, 379163, H04M 1100, H04M 100

Patent

active

054636809

ABSTRACT:
A switching arrangement for activating a plurality of electrical devices connected to a communication line. The switching arrangement monitors the communication line for the reception of activation signals, and also transmits activation signals to the communication line. The switching arrangement activates an electrical device (from the plurality of electrical devices) connected to the communication line, in response to the detection of the an activation signal, to shift the electrical device from a dormant state (in which electrical consumption by the electrical device is minimized) to a normal, functional operational state (in which a maximum electrical consumption of the electrical device occurs) only when the electrical device is actually being operated. By switching the electrical device between a dormant state and an operational state, the amount of electrical power required to operate the plurality of electrical devices is reduced.

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