Hardware Installation and Reference Guide
Maintenance and Troubleshooting
67
5
Maintenance and Troubleshooting
5.1
General Troubleshooting Procedure
5.2
Troubleshooting Common Faults
Symptom
Possible Causes
Solution
The status indicator
is not on after the
switch is started.
The power module does not
work.
The power cable is in loose
contact.
Check whether the power socket at the
equipment room is normal and whether
the power cable is plugged in.
The RJ45 port is not
in connectivity or it is
erroneous in
receiving/transmittin
g frames.
The connected twisted pair
cable is faulty.
The length of the cable
exceeds 100 m.
The port has special
configuration that has no
common working mode with
the connected switch.
Replace the twisted pair cable.
Check that the port configuration has
the common working mode with the
connected switch.