Components Replacement
Troubleshooting
Below is a list of the common problems that you may encounter when using the
switch. Try to solve these problems with the suggested solutions before calling for
service. If problems persist, contact customer support.
Diagnostic Switch Indicator
Problem
Solution
Power LED is off.
The switch does not receive any power.
•
Check if the AC power cords are connected properly.
•
Check if the power supply units are completely seated in the
chassis.
•
The power supply unit may be damaged and needs
replacement.
A Port LED is off.
•
Check if the switch and the connected device are powered
on.
•
Check if the connection in both ends are properly connected.
•
Check if the cable matches the required length and
specification.
•
Check for a defective cable/port module.
PSU 1 & PSU 2 LED is in
Possible issues:
Red state.
•
Fan Lock (15 sec.)
•
OTP: Over Temperature Process
•
OCP: Over Current Process
•
OVP: Over Voltage Process
•
UVP: Under Voltage Process
Fan LED is in Red state. One or more fans have failed.
Power and Cooling Problems
If the power indicator does not turn on when the power cord is plugged in, you may have
a problem with the power outlet, power cord, or power supply. However, if the unit
powers off after running for a while, check for loose power connections, power losses or
surges at the power outlet, and verify that the fans on the unit are unobstructed and
running prior to shutdown. If you still cannot isolate the problem, then the internal
power supply may be defective.
Installation
Verify that all system components have been properly installed. If one or more
components appear to be malfunctioning (such as the power cord or network cabling),
test them in an alternate environment where you are sure that all the other
components are functioning properly.
33
Network Switch Installation Guide
