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USB GPI Trigger
18
Chapter 2 | Installation and Setup
In f oC as t er R ac km o u nt H ar dw a r e In sta ll at io n M a n ua l
InfoCaster Rackmount supports GPI triggers connected to the USB U2IO
device for controlling output. The U2IO device supports 14 GPI connections
and 10 GPO connections.
Figure 2-5
shows the GPI pin connectors for the U210 device.
9
18
26
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
Figure 2-5. 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.
GPI inputs 9-14 have no internal pull-up resistors. If passive switching is
required for GPI inputs 9-14 the pull-up resistors must be added externally.
Pin
1
10
19
10. GPI 6
19. GPI 10
11. GPI 7
20. GPI 11
12. GPO 4
21. GPO 9
13. GPI 9
22. GPI 14
14. GPI 8
23. GPI 13
15. GPO 5
24. GPI 12
16. GPO 6
25. VCC - MPU
17. GPO 7
26. GPO 10
18. GPO 8
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