How to Use Network Cable Tester_ Application Method of Network Cable Tester

Application method of computer network cable tester

1. Insert the two ends of the network cable above the main and auxiliary survey lines respectively, and you can insert any head at will;

2. Then turn on the switch of the line measuring instrument;

3. Observe whether the indicator lights of 1-8 on the main and auxiliary line measuring instruments are on, and the order of lights is correct.

4. For example, 1 light on the main survey line instrument should be on, and 1 light on the auxiliary survey line instrument should also be on. If the 1 light on the main line measuring instrument is on and the 2 light on the auxiliary line measuring instrument is on, it indicates that there is a problem with the network cable and it can not be used normally;

5. Among the eight lights, as long as the lights 1, 2, 3 and 6 are on, the network cable can be used, because the data is transmitted through these four lines, and the other four lines are not used to transmit data.

There are two standards for the order of network cables:

1: The standard of t568-b is orange white, orange, green white, blue, blue white, green, brown white and brown.

2: The standard of t568-a is green white, green, orange white, blue, blue white, orange, brown white and brown.

The first standard is generally used.

Second, insert the crystal heads at both ends of the network cable into the RJ45 port of the main tester and the remote test end respectively, and turn the switch to "on" (s is slow gear). At this time, the indicator heads of the main tester and the remote test end should flash one by one.

Test of direct connection: when testing the direct connection, the indicator lights of the main tester should flash one by one from 1 to 8, and the indicator lights of the remote test end should also flash one by one from 1 to 8. If this is the case, it means that the connectivity of the through line is OK, otherwise it has to be redone.

Test of interleaved lines: when testing interleaved lines, the indicator lights of the main tester should also flash one by one from 1 to 8, while the indicator lights at the remote test end should flash one by one in the order of 3, 6, 1, 4, 5, 2, 7 and 8. If so, the connectivity of interleaved lines is OK, otherwise it will have to be redone.

If the line sequence at both ends of the network cable is incorrect, the indicator lights of the main tester still flash one by one from 1 to 8, but the indicator lights of the remote test end will flash one by one according to the order of the line numbers connected with the main test end. In other words, the remote test end cannot flash in the order of the above steps.

Phenomenon of wire open circuit test

When one to six wires are open circuit, the indicator lights of the corresponding wire number of the main tester and the remote test end are not on, and other lights can still flash one by one.

When 7 or 8 wires are open circuit, the indicator lights at the main tester and remote test end are not on.

Phenomenon of wire short circuit test

When two wires are short circuited, the indicator lights of the main tester will still flash one by one in the order from 1 to 8, while the indicator lights corresponding to the two short circuits at the remote test end will be lit at the same time, and other indicator lights will still flash one by one in the normal order.

When three or more wires are short circuited, the indicator lights of the main tester still flash one by one from 1 to 8, while the indicator lights corresponding to all short circuits at the remote test end are not on.