ADLINK aTCA-9710 - Manual (Page 14)

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2.3.4 Status LED Definitions
The following sections describe the front panel Status LEDs: Hot-swap LED, OOS LED,
BIOS/OS Boot OK LED, IPMC Payload Power Authorized LED and IPMC Chassis Identify
Command LED.
2.3.4.1 Out of Service (OOS) LED
Out of Service LED (Red)
State Remark
Blinking During BIOS POST M4
Off BIOS POST OK M4
On After OS shutdown M1
2.3.4.2 BIOS/OS Boot OK
BIOS/OS Boot OK (Green)
State Remark
Blinking During OS Boot
Off During BIOS POST
On OS Boot OK
2.3.4.3 IPMC Payload Power Authorized
IPMC Payload Power Authorized
(Amber)
State Remark
On Payload Power Authorized
Off Payload Power Not
Authorized