Cisco SCE 2000 4xGBE Installation And Configuration Manual page 126

Problem Solving Using a Subsystems Approach
Table 8-3
Symptom
Power LED on the front
panel and LEDs on the
power supply unit are not
lit, or do not remain lit
continuously.
Table 8-4
LED Label
IN
OK
Power A/B (front panel)
Cisco SCE 2000 4xGBE Installation and Configuration Guide
8-10
Troubleshooting the Power Subsystem
Possible Cause
Power cable not fully seated at system.
Power cable not fully seated at source.
Power source is faulty.
Faulty power cable.
Faulty power supply.
Power Supply LEDs
Color
Green
Green
Green
Red
Possible Solution
Turn the power switch to the off position and
reseat the power cable in the system.
Turn the switch to the off position and reseat
the power cable at the power source.
Turn the switch to the off position, connect the
power cable to another power source, if
available, and turn the switch back on.
Turn the switch to the off position, remove the
cable and replace it.
If the system still fails to come up when the
power supply is connected to a different power
source with a new power cable, the power
supply unit is probably faulty. Contact a service
representative.
State Function
On The input voltage is in the required range.
Off The input voltage is not in the required
range.
On The output voltage is in the required range
(between 11.9 and 12.1 VDC).
Off The output voltage is not within the
required range (is greater than 12.1 VDC or
less than 11.9 VDC).
Steady Corresponding power supply unit is present
and functioning normally.
Steady Corresponding power supply unit present,
but malfunctioning.
Off Corresponding power supply unit is either
not present or has failed.
Chapter 8 Troubleshooting
OL-7824-04