Troubleshooting Cables; Cable Test; Cable Lengths - Allied Telesis x900-48FE Hardware Reference Manual

34

Cable test

Cable lengths

Troubleshooting Cables

The virtual cable test facility diagnoses cable faults and the approximate
distance to them on Gigabit Ethernet RJ-45 ports for the following switches
running the AlliedWare operating system:
AT-9924T
■
x900-24XT
■
x900-24XT-N
■
x900-24XS
■
See "Test Facility" on page 57
®
in the AlliedWare Operating System Software Reference. Not all copper SFPs
support this feature; however, those listed in
support it.
The virtual cable test facility is not supported in the AlliedWare Plus operating
system.
Approximate cable lengths are reported for gigabit Ethernet RJ-45 ports on the
following switches running the AlliedWare operating system:
AT-9924T
■
x900-24XT
■
x900-24XT-N
■
x900-24XS
■
Cable length is reported after the link is established. To check the length, use
the show switch port command described in the Switching chapter in the
®
AlliedWare Operating System Software Reference. The Cable Length parameter in
the output of this command can be one of the following values:
<50m
■
50–80m
■
80–110m
■
110–140m
■
>140m
■
- (either the port link is down, or the port is operating at 10 Mbps or
■
100 Mbps)
Cable length reporting is not supported in the AlliedWare Plus operating
system.
x900 Series Switch and SwitchBlade
for more information or the Test Facility chapter
"SFP Ports" on page 20
®
x908
do
C613-03092-00 REV J