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BenQ RS232 Code
Model: SP920
1. Connection :
The below shows the illustration of connection between control terminal and Projector.
<Pin assignment >
Pin Description Pin Description
1 RX 2 CTS
3 NC 4 GND
5 RTS 6 NC
7 TX 8 GND
Make sure that your computer and projector are turned off before connection.
Power on the computer first, and then plug the power cord of the projector.
(It may cause Com port incorrect function, if you do not follow this instruction)
Adapters may be necessary depending on the PC connected to this projector. Please contact with
your dealer for further details.
2. Interface Setting :
Baud Rate 115200 bps (default)
Changeable(2400/4800/9600/14400/19200/38400/57600/115200)
Setting in OSD menu
Data Length 8 bit
Parity Check None
Stop Bit 1 bit
Flow Control None
8 7 6
5 4 3
2
1