3com S7906E Guide D’Installation Rapide
7-4
Case
LED
Color
Status
INPUT
Green
The power input is normal.
OUTPUT
Red
The power module goes into the
self-protection state.
self-protection state.
FAN
Green
The power module fan works normally.
There is a short circuit,
over-current, or over-voltage
on the output circuit.
over-current, or over-voltage
on the output circuit.
PoE
OFF
No PoE is output.
INPUT
Green
The power input is normal.
OUTPUT
Red
The power module goes into the
self-protection state.
self-protection state.
FAN
Green
The power module fan works normally.
The power module is
over-temperature protected.
over-temperature protected.
PoE
OFF
No PoE is output.
INPUT
Green
The power input is normal.
OUTPUT
Green
The power output is normal.
FAN
Red
The power module fan is faulty.
The fan tray is faulty.
PoE
OFF
No PoE is output.
On the SRPUs, there are also LEDs indicating the working status of the power modules. For details,
refer to related description about the power LEDs on the SRPUs other than the LSQ1MPUA0 in
Chapter 1 “Product Overview”.
Troubleshooting PSR2800-ACV
On the right of the PSR2800-ACV power module panel are the input LED, output LED, fan LED, PoE
input LED, and PoE output LED. Compared with the PSR1400-A power module, the PSR2800-ACV
power module has two power inputs: one for system power input and the other for PoE power input. The
meanings of the PoE power LEDs are similar to those of the system power LEDs. For the meanings of
these LEDs and for the troubleshooting procedure, refer to section “
page
Troubleshooting Fans
Table 7-3 Description of fan LEDs
LED
Status
Description
ON
All fans work normally.
OK (Green)
OFF
A fan tray is faulty or no fan is installed.
ON
A fan tray is faulty or no fan is installed.
FAIL (Red)
OFF
All fans work normally.
If the OK LED is OFF, check whether:
z
Every heat dissipation fan works normally.
z
Something blocks the vent of the chassis.
z
A blank panel is installed on the slot without a card.