4
LED
Mark
Status
Description
Flashing amber
A severe alarm has occurred, including HDM
alarms, hardware alarms, and processor alarms.
System power
LED
Steady green
The system has started.
Flashing green
The system is starting.
Steady amber
The system is in standby state.
Flashing amber
Abnormal power input.
Off
No power input.
UID button
LED
UID
Steady on
UID LED is activated.
Flashing (1 Hz)
The firmware is being upgraded or the system is
being managed from HDM.
Flashing (4 Hz)
HDM is restarting.
Off
UID LED is not activated.
LEDs on other service modules
Other service modules provide a CPU running status LED to indicate the operation status for the
module.
Table 10 LED description for other service modules
LED
Status
Description
CPU running status LED
(RUN/ALM)
Flashing green at 8 Hz
The CPU is loading software.
Flashing green at 1 Hz
The CPU is operating correctly.
Steady red
The CPU is faulty.
Off
The CPU is not running.
Switching fabric module LEDs
NSQM5FAB08A1 switching fabric module LEDs
An NSQM5FAB08A1 switching fabric module and the fan tray that convers the switching fabric
module both provide a status LED to indicate the operation status for the switching fabric module.
Table 11 NSQM5FAB08A1 switching fabric module LED description
LED
Status
Description
RUN/ALM
Steady green
The switching fabric module is operating correctly.
Steady red
The switching fabric module is faulty.
Off
The switching fabric module is no in position.
