Front panel, Table 1-1, Blue led state – Kontron AM4311 User Manual
Page 18: Table 1-2, Oos led state

Introduction
Page 3
AM4311 User Guide
1.2.2
Front Panel
Figure 1-2: AM4311 Front Panel
1.2.2.1
Hot Swap LED (Blue LED)
The AM4311 board supports a blue Hot Swap LED mounted on the front panel. This LED indicates when it is
safe to remove the Module. The on-board MMC drives this LED to indicate the hot swap state but is controlled
by the carriers IPMC or the MicorTCA carrier manager.
The following states are possible:
1.2.2.2
Out-Of-Service (OOS) LED (LED1)
The AM4311 supports a green Activity LED mounted on the front panel. The position of this LED is near the
bottom handle beside the health LED.
Table 1-1:
Blue LED State
LED state
Description
Solid Off (0 % on)
FRU activation in progress / FRU active
Solid On (100 % on)
FRU inactive
Short Blink (10 % on)
FRU deactivation request / FRU deactivation in progress
Long Blink (90 % on)
FRU activation request
Table 1-2:
OOS LED State
LED state
Description
ON
while executing the boot-block application
OFF
when starting execution of the IPMI firmware.
Blinking
while boot-block application is flashing a new IPMI firmware