The WM2 has 4 LED on the front panel.
Heartbeat
The heartbeat is an indicator of the running OS. It should make 2 flash per seconds. The faster means the CPU is more used.
Error
The error is lit when there is a big problem (parts of system are not running).
It blinks when there are audio drops (maybe due to system overload).
Audio
The LED is lit when all inputs have audio.
It blinks fast when some inputs have audio, but not all.
It is off is there is no audio input.
Watermark
When the LED is lit, all watermarking are OK.
It blinks fast when some watermarking are not OK.
It blinks when all watermarking are OK, but without NTP.
It blinks slowly when some watermarking are not OK, and without NTP.
Blink timings
- Fast is 100ms on/200ms off
- Normal is 500ms on/500ms off
- Slow is 200ms on/2s off