Qomo QD700 Manual page 23

port first）. Then use buttons on the operation panel to control the
projector.
The visualizer provides a 6-pin to 9-pin RS232 cable. If this cable
does not match to your projector's RS232 port, an additional RS232
cable is needed. This additional RS232 cable can be made based on
the pin location of the projector's RS232 control port. The pin
locations of the visualizer are: the pin 1 is RXD (Received Data); the
pin 5 is TXD (Transmitted Data); the pin 4 is GND (Ground). Other
pins are not defined. The pin location information of the projector is
provided by the projector's manufacturer. The projector's RS232
control port normally has RXD pin, TXD pin and GND pin, the name
may be different. The parallelism of each data pin is shown as
follows:
Visualizer's RXD pin------------Projector's TXD pin
6 5
Visualizer's TXD pin------------Projector's RXD pin
4
3
Visualizer's GND pin------------Projector's GND pin
2 1
5. If you can not use buttons on the operation
panel to control the projector, please use Code-Writing software's
projector control code testing function to check if the control code is
correct.
Click "Projector" button, the following dialog box appears as below:
Connect the visualizer to a computer with a RS232 cable (Please
disconnect the projector from the RS232 port first) and select the
Baud Rate and Parity based on the projector's Baud Rate, then click
the "TEST" button to pop up the Projector Code Test dialog box, input
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