Kontron AT8404 - Manual (Page 50)

Hardware Description
37 AT8404 User Guide
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Table 3-19: Symbols Chart
LED Signification LED
Activity ATCA LED3 (amber/green)
Healthy ATCA LED2 (green/amber)
Out of Service ATCA LED1 (red/amber)
Hot Swap ATCA BLUE LED
Table 3-20: ATCA LEDs Signification
LED Signification
ATCA LED3 (HB) (amber/green) not used, can be controlled by application using PICMG API
ATCA LED2 (HY) (green/amber)
Off=Payload power down
ON(green)=Health OK
ON(amber)=Health error (Critical)
Application defined=Can be controlled by application using
PICMG API
ATCA LED1 (OOS) (red/amber)
On=Out of Service
Blink=Firmware Update in Progress or Power denied
ATCA BLUE LED (H/S)
On=Ready for Hot Swap
Blink=Hot Swap in Progress