User manual

Hardware description |
Seite 10
2.3. Pin assignment DSUB-9 connector
Pin
Description
3 & 7
Relay 1
2 & 6
Relay 2
1, 4, 5, 8, 9
NC
2.4. Control LED
The LED on the watchdog stick displays following status:
Description
LED Flash Sequence
Watchdog Disabled
LED permanent on (turns shortly off by PC access )
Watchdog Enabled
1*on + long pause
Watchdog Retrigger
1*on + long pause
Watchdog Timeout
2*short on + long pause