18 Chapter 2 | Installation and Setup
InfoCaster R2100 Hardware Installation Manual
GPI Triggers
InfoCaster R2100 supports USB GPI or serial GPI triggers for controlling output. The GPI trigger type allows
you to trigger each event with an external button press. The GPI takes the voltage from a serial port pin to
close a switch and complete the circuit, triggering the selected event.
USB GPI Trigger
InfoCaster supports GPI triggers connected to the USB U2IO device for
controlling output. The U2IO device supports 14 GPI connections and 10 GPO
connections.
Figure 2-4 shows the GPI pin connectors for the U210 device.
Figure 2-4. USB GPI Connector Pinout
The GPI inputs are TTL. The GPIO device expects TTL transition from High to
Low to initiate a GPI trigger. The GPI triggers can be initiated by using passive
switch, or relay with normally open contacts.
9
18
26 19
10
Pin
1
19. GPI 10
20. GPI 11
21. GPO 9
22. GPI 14
23. GPI 13
24. GPI 12
25. VCC - MPU
26. GPO 10
10. GPI 6
11. GPI 7
12. GPO 4
13. GPI 9
14. GPI 8
15. GPO 5
16. GPO 6
17. GPO 7
18. GPO 8
1. GPI 1
2. GPI 2
3. GPI 3
4. GPI 4
5. GPI 5
6. GPO 1
7. GND
8. GPO 2
9. GPO 3
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