Portable identifier and tester units for computer communication

Details Portable identifier and tester units for computer communication Portable identifier and tester units for computer communication

1988-05-06

1989-06-06

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Conductor identification or location

379 21, 324539, G01R 3102

Patent

active

048374881

ABSTRACT:
A portable cable identifier and tester assembly for a four line token ring network type cable, including a first unit having a power supply and connector mateable to one end of the cable and a second unit mateable to ends of potentially matching cables to provide a signal indicating cable identification. Jumpers are provided in each of the units to ensure that the test signal current is routed through all four wires and connectors. Shorting bars between cable lines in unmated connectors, and spurious personal computer supply voltages, do not inhibit cable identification. User ease and self-test are inherent features.

REFERENCES:
patent: 3369177 (1968-02-01), Graham et al.
patent: 3378764 (1968-04-01), Peltz et al.
patent: 3778801 (1973-12-01), Nudelmont
patent: 4326162 (1982-04-01), Hankey
patent: 4536703 (1985-08-01), Jablway et al.
patent: 4551671 (1985-11-01), Annunziata et al.
patent: 4581577 (1986-04-01), Nowosad et al.
patent: 4701699 (1987-10-01), Hoff
patent: 4703497 (1987-10-01), Ingalsbe
patent: 4736158 (1988-04-01), McCartney

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