Telephone interface security lock

Details Telephone interface security lock Telephone interface security lock

1993-04-16

1996-03-05

Hofsass, Jeffery A.

Telephonic communications

Subscriber line or transmission line interface

379412, 379445, 379397, 439304, 439133, H04M 900

Patent

active

054974160

ABSTRACT:
A network termination module for telephone network interface apparatus is provided with a selectively operable latching device for a lock securing the security cover over the subscriber terminals. With the latching device in a position to engage the security cover lock, the cover can be opened only by keying open the lock and removing it. On the other hand, an authorized person can, upon opening the telco cover of the apparatus, expose the latching device whereby it can be displaced to enable opening of the security cover without unlocking or removing the lock.

REFERENCES:
patent: D315140 (1991-03-01), Dowler
patent: 4800588 (1989-01-01), Poster
patent: 4825466 (1989-04-01), Dowler et al.
patent: 4910770 (1990-03-01), Collins et al.
patent: 4945559 (1990-07-01), Collins et al.
patent: 4979209 (1990-12-01), Collins et al.
patent: 5297199 (1994-03-01), Graham et al.
patent: 5312266 (1994-05-01), Daoud
GTE brochure, Protected Terminating Device NI-2006, GTE Control Devices, Standish, ME, May 1992.
GTE brochure, Protected Terminating Device PTD, GTE Control Devices, Standish, ME, May 1992.
GTE brochure, Protected Terminating Devices NI-2025, NI-2050, NI-2100, NI-2200, GTE Control Devices, Standish, ME, May 1992.
GTE brochure, Introducing the Next Step In the Evolution of Network Interface Technology, GTE Control Devices, Standish, ME, May 1992.

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