Line open-short circuit tester

A technology of open-short circuit and tester, which is applied in the direction of short-circuit test, continuity test, instrument, etc.

Inactive Publication Date: 2006-09-13
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the number of indicator lights and switches used must match the number of contact pins of the cable connector. As mentione

Method used

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  • Line open-short circuit tester
  • Line open-short circuit tester
  • Line open-short circuit tester

Examples

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Embodiment Construction

[0014] The preferred embodiment of the cable opening and short circuit tester of the present invention will be described below with reference to the accompanying drawings.

[0015] figure 1 It is a schematic diagram of the panel of the cable opening and short circuit tester of the present invention. As shown in the figure, the panel 3 is provided with a first connection interface 10 , a second connection interface 20 , a double pole double throw switch 30 , an open circuit indicator light 40 and a short circuit indicator light 50 . The open circuit indicator light 40 and the short circuit indicator light 50 are LEDs (Light Emitting Diode, light emitting diode). Such as figure 2 As shown, there are 40 signal lines of the cable 100 to be tested in this preferred embodiment, and the first connector 101 and the second connector 102 corresponding to the cable 100 to be tested each have 40 contact pins. The first connector 101 is matched with the first connection interface 10 , ...

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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...

Claims

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Application Information

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IPC IPC(8): G01R31/02G01R31/50
CPCG01R31/021G01R31/026G01R31/58G01R31/54G01R31/52G01R31/50
Inventor 舒斌
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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