Modular protected entrance terminal

Details Modular protected entrance terminal Modular protected entrance terminal

1990-08-30

1993-01-05

Dwyer, James L.

Telephonic communications

Subscriber line or transmission line interface

Protective circuit

379399, 379442, 379429, H04M 900

Patent

active

051777827

ABSTRACT:
An entrance terminal and interface between the telephone company network and the subscriber's premises is more readily serviced by a single module having an enclosed printed circuit board combining the voltage overload device, the demarcation plug and socket and a service circuit such as a half-ringer or maintenance termination unit.

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CP-762 Network interface device, J103, 1985.
Keptel's SN1-500, Oct. 1985.

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