Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Patent
1984-07-13
1986-09-23
Rubinson, Gene Z.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
361119, H02H 100
Patent
active
046137327
ABSTRACT:
An interface for use with telecommunications systems, at a customers premises, comprises a module for connection to the incoming telephone lines and having a modular jack for plugging in of the customers lines. Conveniently the module is a plug-in arrangement, and incorporates line protectors. Back-up protectors can also be provided. The module can also connect to, and also incorporate circuits for providing services such as automatic number identification and similar services.
REFERENCES:
patent: 4217154 (1982-02-01), Passarella
patent: 4220391 (1980-09-01), Krolak
patent: 4274691 (1981-06-01), Abernathy
patent: 4296991 (1981-10-01), Hughes
patent: 4303296 (1981-12-01), Spaulding
patent: 4343527 (1982-08-01), Harrington
patent: 4402031 (1983-08-01), Fasano
patent: 4408819 (1983-10-01), Guelden
patent: 4411485 (1983-10-01), Wisehart
Cwirzen Casimir
Jaycox Donald F.
Northern Telecom Limited
Rubinson Gene Z.
Schroeder L. C.
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