Christie RPMSP-D132U, User Manual

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RPMX/RPMSP-D132U & RPMSP-D180U User Manual C-1
020-100245-03 Rev. 1 (11-2010)
C System Integration
The GPIO connector located on the input panel provides a flexible method of interfacing external I/O devices
to the projector. There are 7 GIO pins on the 9 pin GPIO connector, which are configurable via RS-232
commands. The other two pins are reserved for ground and power. See Table C.1 for pin identification.
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.
C.1 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 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 its input goes high.)
Table C.1 GPIO Pins
PIN NUMBER 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
(GIO C2 O) Set pin #2 configuration to output
(GIO 2 H) Set pin #2 to high (state)
GPIO
1 2
6
3
7
4
8
5
9