Modular jack with loop testing switch

Details Modular jack with loop testing switch Modular jack with loop testing switch

1989-01-03

1990-06-26

Pellinen, A. D.

Electrical transmission or interconnection systems

Switching systems

379 5, 379 27, 379399, 439344, 439620, H04M 900, H01R 1300

Patent

active

049374648

ABSTRACT:
A modular jack has a switch located between the jack's contacts and its screw terminals. The switch permits (1) simultaneous loop testing from both sides, (2) loop testing from one side while the other side is disconnected, and (3) normal communications. The modular jack is recommended for use between a PBX and computer equipment.

REFERENCES:
patent: 4415778 (1983-11-01), Turner
patent: 4582964 (1986-04-01), Pickens
patent: 4626633 (1986-12-01), Ruehl et al.
patent: 4748651 (1988-05-01), Collins et al.

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