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Method for testing cable line sequences rapidly and accurately

A network cable line sequence, accurate technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problem of not measuring the line sequence and so on

Active Publication Date: 2013-08-07
TIANJIN DEVISER ELECTRIC INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many technologies now only measure the on-off of the network cable, but do not measure the specific line sequence.

Method used

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  • Method for testing cable line sequences rapidly and accurately
  • Method for testing cable line sequences rapidly and accurately
  • Method for testing cable line sequences rapidly and accurately

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0069] Such as figure 1 As shown in the figure, connect the 8 ports of the processor with AD to the 8 copper cores at the A end of the network cable, and at the same time connect the 8 copper cores at the A end of the network cable to the 8 terminals of the 8-to-1 switch, and the 8-to-1 switch’s common The end is grounded through the fifth resistor; the 8 copper cores at the B end of the network cable are in pairs, and a resistor and a diode are connected in series between the two copper cores. The direction of the diodes is from 2 wires to 1 wire and from 4 wires to 3 wires. , from line 6 to line 5 and from line 8 to line 7.

[0070] Below in conjunction with an example the hardware structure of the inventive method is illustrated: the selected processor with AD is C8051F410 with 10-bit AD function, and the diode is a common diode. Prepare a network cable with a specific network cable sequence, such as Figure 4 As shown, the two crystal heads of the network cable are respe...

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Abstract

Disclosed is a method for testing cable line sequences rapidly and accurately. The method includes that eight ports with an AD (analog-to-digital) processors are respectively connected with eight copper cores of a cable line side A, the eight copper cores of the cable line side A are then respectively connected with eight terminals of an eight-selected-one switch, and a common terminal of the eight-selected-one switch is connected to the ground via a fifth resistor; eight copper cores of a cable side B are arranged in groups of two, and one resistor and one diode are connected between every two copper cores in series connection; and high-level signals are sent in turns by lines of the cable line side A, values of level signals returned to the lines of the cable line As from lines of the cable line side B via the diode and the resistor are read and stored in a result storage device, and a specific line sequence diagram is acquired through analysis of stored values. By the method, a specific line sequence result of the cable lines including open circuits, short circuits, misconnections and reverse connections of the cable lines can be tested rapidly and accurately by the aid of several groups of resistors and the eight-selected-one switch, and therefore, costs are saved, and speed is improved.

Description

technical field [0001] The invention relates to the technical field of telecommunication testing. In the field of telecommunication testing, equipment for testing network line sequence is often used to analyze network faults. The invention relates to a fast and accurate method for testing network line sequence. Background technique [0002] In the field of telecommunications testing, many failures are caused by network cable failures, so the first step of measurement is to verify the correctness of the network cable connection. Many technologies now only measure the on-off of the network cable, without measuring the specific line sequence. Sometimes you need to know the specific line sequence, such as the difference between crossed lines and straight lines. Contents of the invention [0003] The purpose of the invention is to quickly and accurately measure the line sequence of the network cable, including open circuit, short circuit, wrong connection and reverse connecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
Inventor 刘琴琴
Owner TIANJIN DEVISER ELECTRIC INSTR
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