Line open-short circuit tester

Abstract

A tester of creel open circuit and short-circuit consists of DC power supply, open circuit indication lamp, short-circuit indication lamp, the first connection interface, the second connection interface and switch unit. It is featured as making all signal wire be series - connected when said tester is switched on, centralizing all odd number and all even number signal wires at two sides of short-circuit indication lamp separately, connecting the second pin to the fourth one when switch is on open circuit test, short-circuiting open circuit indication lamp and connecting the fourth pin to short-circuit indication lamp cathode when switch is on short-circuit test.

Description

【Technical field】

[0001] The invention relates to a test fixture, in particular to a test fixture for measuring whether there is an open or short circuit in a cable. 【Background technique】

[0002] Current electronic equipment widely adopts flat cables to realize data transmission among various components. For example, in a computer system, a hard disk drive, an optical disc drive, and a power supply are all connected to the main board by cables. Flex cables have become an indispensable component in electronic equipment.

[0003] The cable is usually equipped with a connector at both ends of several signal lines, and is connected with the connection interface on the electronic equipment component through the said connector. There are generally two situations when the cable is defective: short circuit and open circuit of the signal line. The short circuit of the signal line generally occurs between two adjacent signal lines, and the open circuit may appear on any signal lin...

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