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System Utilities

Page 167

Viewing Integrated Cable Tests

The Cable Test Page contains fields for performing tests on copper cables. Cable testing provides diagnostic

information about where errors occurred in the cable, the last time a cable test was performed, and the type of

cable error that occurred. The tests use Time Domain Reflectometry (TDR) technology to test the quality and

characteristics of a copper cable attached to a port. Cables up to 120 meters long can be tested. Cables are

tested when the ports are in the down state, with the exception of the Approximated Cable Length test.

To perform a copper cable test:

1. Click Utilities > Cable Test. The Cable Test Page opens:

Figure 126:Cable Test Page

The Cable Test Page displays the following information:

• Unit Number — Indicates the stacking member for which the Ethernet ports information is displayed.

• Port — Specifies the port to which the cable is connected.

• Test Result — Displays the cable test results. Possible values are:

– No Cable — Indicates that a cable is not connected to the port.

– Open Cable — Indicates that a cable is connected on only one side.

– Short Cable — Indicates that a short has occurred in the cable.

– OK — Indicates that the cable passed the test.

• Cable Fault Distance — Indicates the distance from the port where the cable error occurred.

• Last Update — Indicates the last time the port was tested.

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Allied Telesis AT-8000S Guida Utente Pagina 166