ADLINK CM3-GF - Manual (Page 22)

TME-104P-CMx-GF-1V7 Rev 1.7 14 (81)
2.2 LED indicators
The onboard LED indicators provide a convenient way to check the board’s statuses. The boot success, power
status, IDE accesses, Watchdog and Ethernet accesses are all visible.
The LED indicators are located on bottom of the board, near the LVDS connector.
STATUS Yellow LED shows error codes in terms of failures.
PWR MODE Yellow LED is constantly lit if the boot process is complete and the board is running normally.
LED flashes when board goes in suspend to ram mode.
MAIN PSU Yellow LED lights up when Main Power is supplied.
WD Red LED lights up when Watchdog is triggered. Can only be reset by a power off sequence.
LIVE Red LED is on at startup while the board executes the BIOS power on self test (POST). After
that, it is freely usable by application programs. Chapter 4.3 shows a small sample program on
how to control it.
SATA Yellow LED flashes when SATA activity is recognized.
LINK Green LED shows the Ethernet Link status.
ACT Green LED flashes at Ethernet activity.