Method and device for testing network cable failure

Abstract

The utility model provides a fault testing proposal over network cables. Wider differential detection pulses are sent out from a testing end. When encountering a break point on the cable, the detection pulses are reflected, and the reflected pulses are transmitted back to the sending end along the cable. The sending signal and the reflected signal are mutually superposed, and the time interval between the sending and reflected signals is calculated by measuring the time width of the superposed part; then the position and cause of the failure can be analyzed out. The proposal in the utility model also provides a relevant network cable tester. Four pairs of twisted network cables can be tested just by connecting any end of the network cable with the tester. The tester in the utility model has advantages of simple operation, high resolution and negligible environmental impact. Beside application in network cable fault testing, the testing proposal and device in the utility model can be also used in coaxial cable fault testing.

Description

technical field [0001] The invention relates to the field of network cable testing, in particular to a technical method capable of effectively testing the length of network cables and a device thereof. Background technique [0002] With the development and popularization of computer networks, network security is particularly important for various industries. However, failures of some networks due to design reasons or improper maintenance often bring huge economic losses and catastrophic consequences. Among them, faults caused by network cables account for a large part. Damage or misconnection of network cables will lead to data transmission confusion and network failure, which seriously affects the use and safety of computer communication networks. [0003] The network cable tester can verify the twisted pair. It can measure the length of the twisted pair, find the location and reason of the breakpoint, and test the wiring diagram (short circuit, open circuit) of the netwo...

AI Technical Summary

Problems solved by technology

At the same time, the current network cables mostly use Category 5 or Super Category 5 cables, and the transmission signals are groundless differential signals.

However, the transmission pulse used by the pulse reflection method is a narrow pulse signal referenced to the ground, so it is not suitable to use the pulse reflection method based on a narrow pulse to test the length of network cables.

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