
Installation Manual
H3C S7500E Series Ethernet Switches
Chapter 7 Troubleshooting
7-5
7.2.5 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 7.2.4 “Troubleshooting PSR1400-D” on
page 7-3.
7.3 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.
7.4 Troubleshooting LPUs
Table 7-4
Description of LPU LEDs
LED
Status
Description
ON/OFF
The LPU is faulty or is not installed yet.
RUN
(Green)
Flashing
The LPU works normally.
OFF
The LPU is faulty or is not installed yet.
ALM (Red)
ON
The LPU works abnormally.
z
If the ALM LED of an LPU stays ON, something is wrong with the LPU. When you
reset the LPU, the ALM LED will turn on. After normal booting, the LED will be
OFF.
z
When resetting an LPU, if the ALM LED stays OFF, the LPU may be disconnected
from the power supply. Check if the LPU is properly installed.