AS3000™ Service Manual 0070-10-0683 1 - 33
Theory of Operation Ventilator UI
Keyboard
Signals and Power of Keyboard, J1
PIN NAME FUNCTION
1. ENPW Power Enable, High active
2. GND Ground
3. /PWON / Power on Enable, Low active
4. DC24V DC24V monitor
5. 5VAUX 5V Auxiliary
6. BATV+ Battery monitor
7. APE Auxiliary Power Enable
8. /MUTE No connection
9. GND Ground
10. GND Ground
11. TTLRX TTL Receive
12. TTLTX TTL Transmit
13. 232ARX RS232A Receive
14. 232ATX RS232A Transmit
15. 232BRX RS232B Receive
16. 232BTX RS232B Transmit
17. GND Ground
18. GND Ground
19. PWBUS PowerBus
20. PWBUS PowerBus
21. PWBUS PowerBus
22. PWBUS PowerBus
23. PWBUS PowerBus
24. GND Ground
25. GND Ground
PC104 Power output, J6
PIN NAME FUNCTION
1. 5V Controller Logic Power
2. GND Power Ground
3. GND Power Ground
4. 12V Power 12V, No connection
Backlight Power, J2
PIN NAME FUNCTION
1. 12V Power output
2. 12V Power output
3. GND Power Ground
4. GND Power Ground
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