Telephone network interface apparatus

Details Telephone network interface apparatus Telephone network interface apparatus

1988-03-04

1989-02-28

Ng, Jin F.

Telephonic communications

Subscriber line or transmission line interface

379 22, 361356, D14 52, H04M 900

Patent

active

048093238

ABSTRACT:
Telephone network interface apparatus for interconnecting a plurality of incoming telephone lines to a plurality of subscriber premises lines and for providing demarcation points therebetween including a multi-line interface plug provided with a plurality of conductors interconnecting the multi-line interface plug with a plurality of subscriber terminals, a multi-line interface jack mounted on a base and provided with a movable member movable into a plurality of different positions, with the movable member in one of the positions and the multi-line interface plug inserted in the multi-line interface jack, all of the plurality of subscriber lines are interconnected with all the incoming telephone lines, and with the multi-line plug removed, a demarcation point provided between one of the subscriber premises lines and one of the incoming telephone lines facilitating a determination of where a fault exists with respect to the one line and with the movable member positioned in another of the positions, a second demarcation point provided between another of the subscriber premises lines and another of the incoming telephone lines facilitating a determination of where a fault exists with respect to the other line, subscriber security means provided on the base means and operable by the subscriber to deny others except telephone company personnel access to at least a portion of the appararatus, and control means for rendering the subscriber security means inoperable by the subscriber when the movable member is in any position other than the one position.

REFERENCES:
patent: 4741032 (1988-04-01), Hampton
patent: 4748651 (1988-05-01), Collins et al.
The 200 Network Interface Unit, "AT&T", 1985.

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