Artesyn ATCA 7370 / ATCA 7370-S Installation and Use (June 2014) - Manual (Page 65)

Controls, Indicators, and Connectors
ATCA-7370/ATCA-7370-S Installation and Use (6806800P54F) 65
The meaning of these LEDs is described in the following table.
Table 3-1 Faceplate LEDs
Indicator Color Description
Out of Service
ATCA LED1 Red or
Amber Out of Service
Red/ optional Amber (controlled by IPMC): This LED is controlled by higher
layer software such as middleware or applications.
Red: On after power up and lamp test finished
Turned "OFF" by OS startup script or application.
In Service
ATCA LED2 Green or
Red In Service
Red/green (controlled by IPMC. If both red and green are lit, it may look
amber): This LED is controlled by higher layer software such as
middleware or applications.
Off after power up and lamp test finished
Turned green "ON" by OS startup script or application.
Attention
ATCA LED3 Amber Attention
Amber: This LED is controlled by higher layer software such as middleware
or applications.
Off after power up and lamp test finished
Base Ethernet Green ON: Link up
Blinking: Shows activity
OFF: Link down
The two LEDs are for the base Ethernet interface and are multiplexed with
U1 and U2 using the signal FP_BASE_LED_EN_N signal controlling from
FPGA.
U1, U2, U3 Red User LED

Red: user defined LED by FPGA register 0x57