Configuration Guide
684
Configuring Maintenance
Diagnosing the Device
4
Diagnosing the Device
4.1 Using the GUI
Choose the menu
Maintenance > Device Diagnose > Cable Test
to load the following
page.
Figure 4-1
Diagnosing the Device
1) In the
Port
section, select your desired port for the test.
2) In the
Result
section, click
Apply
and check the test results.
Port
Select the port for cable testing. The interval between two cable tests for one port
must be more than 3 seconds.
Pair
Displays the Pair number.
Status
Displays the cable status. Test results include normal, close, open and crosstalk.
Normal : The cable is normally connected.
Close: A short circuit caused by an abnormal contact of wires in the cable.
Open: No device is connected to the other end or the connectivity is broken.
Crosstalk: Impedance mismatch caused by the poor quality of the cable.
Length
If the connection status is normal, here displays the length range of the cable. The
value makes sense only when the cable is longer than 30m.