Alaxala AX2500S, Troubleshooting Manual

Page: 37 / 136

2 Troubleshooting Switch Failures
11
No. Problem Action
failure has occurred on the Switch. In this case,
replace the Switch.
5 The red ST1 LED of the Switch blinks.
The LINK LED (10GBASE-R port [10G
models] and 1000BASE-X port) and the
1-48 LED (10/100/1000BASE-T port) of
ports on the Switch are lit in orange or off. A problem has occurred on the Switch or line.
1.
Check the error message and take appropriate
action. Use the
show logging
command to check
the failure information and take action.
>show logging
If a failure has occurred on an external power unit
(EPU), identify the problem by referring to 2.1.2
Isolating the cause of external power unit failures .
6 The ST2 LED of the Switch is blinking
green.
See 3.9.2 Communication failures occurring when SML is
used [OS-L2A].
7 LED indications of the Switch and EPU
show no abnormality, but the device
administrator command displays
EPU:notconnect
.
Make sure that the cable is properly connected between
the Switch and EPU. If the cable is disconnected, follow
the procedure below to restart the Switch:
1.
Turn off the Switch.
2. Properly connect the disconnected cable.
3. Turn on the Switch.
Table 2-2 Isolating the cause of power failures
No. Problem Action
1 The power switch of the Switch is off. Turn the power switch on.
2 The power cable is disconnected or
loose. Perform the following procedure:
1.
Turn the power switch off.
2. Connect the power cable correctly.
3. Turn the power switch on.
3 The measured input power supply is
outside the following range:
For 100 V AC: 90 to 127 V AC
For 200 V AC: 180 to 254 V AC
Note: Take this action only if the input
power supply can be measured.
Ask the person responsible for the facility where the switch
is housed to take action regarding the input power supply.