D-Link DXS-3250E - xStack Switch, Web/Installation Manual

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Managing Device Diagnostics
Page 337
Viewing Copper Cable Tests
The Copper Cable Tests Page contains fields for performing tests on copper cables. Cable testing provides infor-
mation about where errors occurred in the cable, the last time a cable test was performed, and the type of cable
error, which occurred. The tests use Time Domain Reflectometry (TDR) technology to test the quality and charac-
teristics 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 test cables:
Figure 238:Copper Cable Tests Page
The Copper Cable Tests Page contains the following fields:
To display Copper Cable Test Information, select a Unit number:
•
Unit No. — Indicates the stacking member for which the copper cable Information is displayed.
Copper Cable Information Table
•
Port — Specifies the port IP address 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.