Artesyn ATCA 7370 / ATCA 7370-S Installation and Use (January 2015) - Manual (Page 65)

Controls, Indicators, and Connectors
ATCA-7370/ATCA-7370-S Installation and Use (6806800P54H) 65
The "Out of service", "In Service" and "Attention" LEDs are directly controlled by IPMC. A higher
application software can issue "set/get FRU LED state" command to IPMC to access them.
Attention 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
Hot Swap Blue FRU State Machine

During blade installation
–
Blue: On-board IPMC powers up
– Blue (blinking): Blade is communicating with the shelf manager
– Off: Blade is active
 During blade removal
–
Blue (blinking): Blade is notifying the shelf manager that it is
going to deactivate
– Blue: Blade is ready to be extracted
Table 3-1 Faceplate LEDs (continued)
Indicator Color Description