Nevion CP44-MEC+ - Manual (Page 14)

IP Based Control Panels Rev. P
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4 Connections
4.1 GPI I/O connections
GPI I/O connector type is DB25 female.
In-/Output # DB25 Pin #
1 12
2 24
3 23
4 10
5 9
6 21
7 20
8 7
9 6
10 18
11 17
12 4
13 3
14 15
15 14
16 1
All GPI inputs are internally connected to +5V via a pull-up resistor. The inputs will be
activated when pulling them to Ground (GND).
GND (on both in-/output connector) is available on the following pins: 2, 5, 8, 11, 13, 16, 19,
22, and 25 and on the connector chassis.
The GPI outputs are of open collector type. An output can switch a maximum load of 100mA
at 30V. Any device to be controlled by the GPI outputs (lamp, LED or similar) needs to be
connected to an external supply voltage on one end and to the GPI output on the other end.
Warning! Do not connect external supply voltages higher than 30V DC.