Digital added main line system with power-up and power-down feat

Details Digital added main line system with power-up and power-down feat Digital added main line system with power-up and power-down feat

1995-11-03

1997-05-06

Kizou, Hassan

Multiplex communications

Communication techniques for information carried in plural...

375286, 375240, 379 93, 379399, 455 383, 455343, H04J 300, H04L 2534, H04M 100, H04Q 500

Patent

active

056278330

ABSTRACT:
A method for powering a system for transmitting and receiving multiple telephone transmission signals over a single twisted pair. The method also powers down a portion of the system. An analog signal from a local switching station is converted to an 80 kbits/sec signal for transmission over a twisted pair. A remote terminal converts the 80 kbits/sec signal back into a conventional analog signal for use in conventional telephone, facsimile or other related equipment.

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