Operation Manual

142
Diagnostics
Cable Diagnostics
Cable Diagnostics helps you to detect whether your cable
has connectivity problems provides information about
where errors have occurred in the cable. The tests use Time
DomainReectometry(TDR)technologytotestthequality
of a copper cable attached to a port. TDR detects a cable
fault by sending a signal through the cable and reading
thesignalthatisreectedback.Allorpartofthesignalis
reectedbackeitherbycabledefectsorbytheendofthe
cable when an issue is present. Cables are tested when the
ports are in the down state, with the exception of the cable
length test.
To verify accuracy of the test, it is reccomended that you
run multiple tests in case of a test fault or user error.
Port:
Select the port to which the cable is
connected. Pair (A, B, C, and D): Displays
the cable test results.
• Open – A cable is not connected to the
port.
• OK – A cable is connected to the port.
Cable Length (A, B,
C, and D):
Displays the approximate cable length.
Click Test to perform the cable tests for the selected port.