A-10
Pronto2K/ProntoHD Hardware Guide
GPI (9-Pin D-Sub Connector)
The GPI inputs are voltage sensing inputs with TTL trigger levels
(> 2V = high, < 0,8V = low). Without any input they are set to ’high’.
Thus, with a connected switch the user will be able to connect the
voltage level to ground (GND) and no extra power supply has to be
set for the GPI inputs.
Pin No.
Signal
1
–
2
GND
3
GPI_OUT0 (GPI output 0)
4
GPI_IN0 (GPI input 0)
5
–
6
–
7
GPI_OUT1 (GPI output 1)
8
GPI_IN1 (GPI input 1)
9
GND
(external view;
male on interface, female on cable)
1
5
6
9
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