In-line test switch for communications network

Details In-line test switch for communications network In-line test switch for communications network

1994-09-21

1996-12-17

Olms, Douglas W.

Multiplex communications

Diagnostic testing

Using oam cells

375213, H04J 116

Patent

active

055861113

ABSTRACT:
A communications network wherein the individual communication lines extend to peripheral user devices from a central hub. A test switch is interposed in the communication lines in the vicinity of the hub. The test switch functions to selectively disconnect one of the communication lines from the hub and instead connect that line to a tester. A remote active termination device connected in the line provides the proper line termination for the test being performed.

REFERENCES:
patent: 3978291 (1976-08-01), Bergeron, Jr. et al.
patent: 4901004 (1990-02-01), King
patent: 4970466 (1990-11-01), Bolles et al.
patent: 5051741 (1991-09-01), Wesby
patent: 5062151 (1991-10-01), Shipley
patent: 5289340 (1994-02-01), Yoshifuji
patent: 5296850 (1994-03-01), King
patent: 5410535 (1995-04-01), Yang et al.

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