Emerson ATCA-9305 Manuel D’Utilisation

 FRU LEDs

ATCA-9305 User’s Manual

This section describes the front panel LEDs controlled by the IPMC and documents how to 
control each LED with the standard FRU LED commands. Reference the PICMG

®

®

 Base Specification for more detailed information.

The ATCA-9305 has four Light-Emitting Diodes (LEDs) on the front panel. See 

 for 

their location.

Table 7-11:

Response Data

8

Present countdown value, lsbyte. The initial countdown value and 
present countdown values should match immediately after the 
countdown is initialized via a Set Watchdog Timer command and 
after a Reset Watchdog Timer has been executed.
Note that internal delays in the IPMC may require software to delay 
up to 100 ms before seeing the countdown value change and be 
reflected in the Get Watchdog Timer command.

9

Present countdown value, msbyte

Hot 
Swap

00

CR57

The blue Hot Swap LED displays four states:
On—the board can be safely extracted
Off—the board is operating and not safe for 
extraction, 
Long blink—insertion is in progress
Short blink—requesting permission for 
extraction

OOS

01

CR54

The Out Of Service programmable LED 
controlled by the IPMI controller is either red 
(North America) or amber (Europe). When lit, 
this LED indicates the ATCA-9305 is in a failed 
state.

2

02

CR55

The green LED is user defined, but frequently is 
used as an In Service indicator. When used as an 
In Service indicator, a lit LED indicates that the 
ATCA-9305 is functioning properly.

3

03

CR56

The amber LED is user defined.

  (continued)