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Twin-Axial Cable Analyzer

IP.com Disclosure Number: IPCOM000044616D
Original Publication Date: 1984-Dec-01
Included in the Prior Art Database: 2005-Feb-06

Publishing Venue

IBM

Related People

Authors:
Schmidt, AL Voigt, RJ [+details]

Abstract

The purpose of this design is to provide a means of detecting open and short circuits, and phase reversal wiring in twin-axial or similar type of cable. The twin-ax cable analyzer is self-contained and is capable of testing cable up to 5000 feet long. It is powered by a single 9-volt battery 1, (Fig. 1). Light-emitting diodes (LEDs) 2 and 3 detect a malfunction when switch 4 is positioned in the following five-step test positions. For step test position 1, diode 5 must be removed by disconnecting test plug 9. This is done to prevent the diode from burning out in the event of a shorted shield. Each step test position is taken in sequence, and the problem is corrected before proceeding to the next test.