
Switches and LEDs
109352-E Rev. A 6-3
620-Watt Power Module LED
This section describes the function of the green Power OK LED on each of the
620-watt BLN-2 and BCN power modules (F
igure 6-2).
BOOT Indicates software initialization and loading are taking place on one
or more modules. The hardware platform indicates a successful
startup by turning off the BOOT LED.
DIAG Indicates diagnostic testing is taking place on one or more modules.
Diagnostic testing occurs when you cold-start the hardware platform.
Cold-starting occurs after a power cycle or when you issue the
diags
command from the Technician Interface.
Diagnostic testing can take 1-to-4 minutes, depending on the
configuration of each slot. The Diag LED turns off after successfully
completing the diagnostic tests.
The DIAG LED may also indicate a fan failure. Verify whether the
problem is a fan failure by performing one of the following tasks:
• View the event messages generated by the hardware platform
Gate Access Management Entity (GAME) operating system.
When reporting a fan failure, the GAME operating system
generates the following event messages:
System fan module failure...
System temperature has risen into cautionary range
.
• Remove the EMC shield to view the FRE or FRE-2 module LEDs.
If the DIAG LED on the front panel of the BN is on, and if LEDs F
and 8 on all FRE modules, or LEDs E and F on all FRE-2
modules are
not
on, a fan failure has occurred. (Refer to the next
section for more information about these LEDs.)
Table 6-1. Front-Panel LEDs
LED Function
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