Apparatus for protecting a telecommunications network from false

Details Apparatus for protecting a telecommunications network from false Apparatus for protecting a telecommunications network from false

1995-06-02

1997-01-21

Olms, Douglas W.

Multiplex communications

Diagnostic testing

Loopback

370241, 379 23, H04J 314, H04M 322

Patent

active

055965687

ABSTRACT:
An apparatus continuously monitors the T1 output signal from a customer telecommunications equipment to a telecommunications network and provides a substitute input signal to the network whenever the T1 output signal from the customer equipment is interrupted. When the output signal from the customer equipment is present, the apparatus passes through the input and output signals between the customer equipment and the network. When the output signal from the customer equipment is interrupted, the apparatus loops back the output signal from the network into the input to the network, providing the network with a substitute signal. The monitor uses a high impedance, non-intrusive sensing circuit.

REFERENCES:
patent: 4213015 (1980-07-01), Kimbrough
patent: 4230913 (1980-10-01), Brothers et al.
patent: 4446340 (1984-05-01), Fryer
patent: 4480152 (1984-10-01), Taylor
patent: 4538033 (1985-08-01), Bruce et al.
patent: 4564933 (1986-01-01), Hirst
patent: 4759009 (1988-07-01), Casady et al.
patent: 4771449 (1988-09-01), Kiko et al.
patent: 4860281 (1989-08-01), Finley et al.
patent: 4926442 (1990-03-01), Bukowski et al.
patent: 4945317 (1990-07-01), Sato et al.
patent: 4984262 (1991-01-01), Kumozaki et al.
patent: 5060226 (1991-10-01), Gewin et al.
patent: 5077782 (1991-12-01), Bushue et al.
patent: 5125027 (1992-06-01), Blaszykowski et al.
patent: 5140625 (1992-08-01), Reum et al.
patent: 5224149 (1993-06-01), Garcia
patent: 5267237 (1993-11-01), Townley
patent: 5398234 (1995-03-01), O'Connell et al.
patent: 5515361 (1996-05-01), Li et al.
Sedra S Smith, Microelectronic Circuits, 1987, various pages.

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