Communication lines with terminate and leave capability-VF data

Details Communication lines with terminate and leave capability-VF data Communication lines with terminate and leave capability-VF data

1985-05-03

1987-04-28

Schreyer, Stafford D.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of data transmission

379 27, 379158, 379203, H04M 124

Patent

active

046619690

ABSTRACT:
Apparatus for interconnecting a plurality of communication line pairs, typically voice frequency lines of the telephone type. A passive resistance bridge with pairs of bridge terminals and switches for connecting bridge terminal pairs to communication line pairs or to terminating resistors. Local and remote control for the switches and control apparatus which permits service personnel to selectively terminate a bridge terminal pair with a fixed resistor and leave a subscriber's communication line open, for maintaining service for other communication lines connected to the bridge while performing maintenance on the disconnected line. The apparatus is suitable for two wire and for four wire systems and for resistance bridges with various numbers of terminals, such as six way, eight way and twelve way.

REFERENCES:
patent: 4338496 (1982-07-01), Yakel
patent: 4536617 (1985-08-01), Perry

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