Christie Mirage 5000 User Manual download pdf (Page 135)

Appendix E

System Integration

User’s Manual E-1

The GPIO (General Purpose Input Output) connector located on the input panel provides a flexible

method of interfacing a wide range of external I/O devices to the projector. There are 7 GIO pins

available on the 9pin D-Sub GPIO connector, which are configurable via RS232 commands. The other

two pins are reserved for ground and power – see table below for pin identification.

GPIO Pins

Pin # Signal

1 + 12V (200mA)

2 GPIO 1

3 GPIO 2

4 GPIO 3

5 Ground

6 GPIO 4

7 GPIO 5

8 GPIO 6

9 GPIO 7

The serial cable required for connecting the external device to the projector’s GPIO connector,

whether it’s a standard serial cable or a custom one, must be compatible with the external device.

Configuring the GPIO

The GPIO connector can be configured to automate any number of events using the serial

command code GIO. Each pin is defined as either an input or output depending on the

desired outcome. In general, configure the pin as an input if you want the projector to respond

to something the external device does and as an output if you want the external device to

respond to an action taken by the projector. For example, configure the pin as an output if you

want the lighting in a room to automatically dim when the projector is turned on.

By using the GIO command, you can also set the state of each pin as high or low. By default,

the state of each pin is high. The voltage applied to pins in the high state is + 3.3V.

Example 1.

Turn room lighting on when the projector is turned off. (Assumes a

control/automation unit is configured to turn the lights on when pin 2 of it’s input goes high.)

(GIO C2 O) Set pin #2 configuration to output

(GIO 2 H) Set pin #2 to high (state)

GPIO

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Christie Mirage 5000 User Manual Page 135