Checking The Leds - H3C CR19000-20 Installation Manual

Checking the LEDs

After the router powers up, you can determine whether the router and the components are operating
correctly by observing the LEDs on the MPUs and other components. When the router and
components are operating correctly, the LEDs are as described in
states are not as described in
identify and resolve the issue, see "Troubleshooting."
Table6-2 MPU LED descriptions
LED
OK
FAN
FAIL
OK
PWR
FAIL
RUN
ALM
ACT
Table6-3 Module LED descriptions
LED
Fabric module
LED
Interface
module LED
Fan tray LED
Power supply
LED
IMPORTANT:
• To check the power supply LEDs, first remove the air filter. Press the blue locking tabs at both
sides of the air filter to remove the air filter from the top hood.
• The PWR FAIL LED on the MPU turns on if one of the installed power supplies has failed to
power up. The possible reasons might be that the power cord is not connected, the power cord is
loose or in bad condition, or the circuit breaker is off.
• The fan trays in the top four rows (FAN 1 to FAN 12), in the middle three rows (FAN 13 to FAN
21), and in the bottom four rows (FAN 22 to FAN 33) power up after a three-second delay,
two-second delay, and four-second delay, respectively upon power-up of the router. Before a fan
tray powers up, its OK/FAIL LED is red.
Table6-2 and Table6-3, the router and components might be faulty. To
Status
Steady green
Off
Steady green
Off
Slow flashing green (4 Hz)
Fast flashing green (0.5 Hz)
Off
Steady green
Flashing green
Off
Status
Fast flashing green (4 Hz)
RUN
Slow flashing green (0.5 Hz)
Fast flashing green (4 Hz)
RUN
Slow flashing green (0.5 Hz)
OK/FAIL Steady green
IN OK
Steady green
OUT OK
Description
All the fan trays are operating correctly.
All the installed power supplies are operating correctly.
The modules are loading software.
The modules are operating correctly.
No alarm has occurred on the system
The MPU is in active mode of the chassis or system.
The router is in cluster mode, and the MPU is in standby
mode.
The router is in single chassis mode, and the MPU is in
standby mode.
Description
The fabric module is loading software.
The fabric module is operating correctly.
The module is loading software.
The module is operating correctly.
The fan tray is operating correctly.
The power supply is operating correctly.
6-3
Table6-2 and Table6-3. If the LED