Gel filled RJ11 connector

Details Gel filled RJ11 connector Gel filled RJ11 connector

1991-11-12

1993-03-16

Schreyer, Stafford D.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

379451, 439271, 439587, 439936, H04M 124

Patent

active

051951258

ABSTRACT:
A test system directed to apparatus for transmitting and receiving multiple telephone transmission signals over a single twisted pair. The system converts an analog signal from a local switching station to an 80 ksymbols/sec signal for transmission over a twisted pair by a line card. A remote terminal converts the 80 ksymbols/sec signal back into a conventional analog signal for use in conventional telephone, facsimile or other related equipment. The test equipment separately tests the entire system, the line card portion of the system, the remote terminal portion of the system, and the twisted pair.

REFERENCES:
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patent: 4748651 (1988-05-01), Collins et al.
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patent: 4846721 (1989-07-01), Debruycker et al.
patent: 4924489 (1990-05-01), Lawrence et al.
patent: 4979209 (1990-12-01), Collins et al.
patent: 5085597 (1992-02-01), Story et al.
"The Complete Catalog of Voice/Data Connecting Devices and Telecom Apparatus," Copyright 1990, Suttle Apparatus, Minn.

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