Pair: Displays the Pair number
.
Status: Displays the connection status of the cable connected to the port.
The test results of the cable include normal, close, open, short,
impedance or unknown.
Length: If the connection status is normal, here displays the length range of
the cable.
Error: If the connection status is close, open or impedance, here displays
the error length of the cable.
Note:
1. The Length displayed here is the length of pair cable not that of the physical cable.
2. The test result is just for your reference.
15.3.2 Loopback
Loopback test function, looping the sender and the receiver of the signal, is used to test whether
the port of the switch is available as well as to check and analyze the physical connection status of
the port to help you locate and solve network malfunctions.
Choose the menu Maintenance→Device Diagnose→Loopback to load the following page.
Figure 15-8 Loopback
The following entries are displayed on this screen:
Loopback Type
Internal: Select Internal to test whether the port is available.
External: Select External to test whether the device connected to the port o
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General
Weight and Dimensions
