BenQ RS232 Code
Model: SP920
1. Connection :
The below shows the illustration of connection between control terminal and Projector.
<Pin assignment >
Pin
1
Description
RX
Pin
2
Description
CTS
8
7
4
6
5
3
2
1
3
NC
4
GND
5
RTS
6
NC
7
TX
8
GND
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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
Parity Check
Stop Bit
8 bit
None
1 bit
None
Flow Control
Function
Type
Operation
ASCII
Write
Write
Read
Zoom out
<CR>*zoomO#<CR>
<CR>*auto#<CR>
Picture Setting
Auto
Lamp Hour
Lamp-2 Hour
Dual Brightest
Dual Reliable
Single Alternative
<CR>*ltim=?#<CR>
<CR>*ltim2=?#<CR>
<CR>*lampm=dualbr#<CR>
<CR>*lampm=dualre#<CR>
<CR>*lampm=single#<CR>
Read
Write
Write
Write
Read
Lamp Control
Lamp Mode Status <CR>*lampm=?#<CR>
Write
Write
Write
Write
Write
Write
Write
Menu On
Menu Off
Up
<CR>*menu=on#<CR>
<CR>*menu=off#<CR>
<CR>*up#<CR>
Menu Control
Down
Right
<CR>*down#<CR>
<CR>*right#<CR>
<CR>*left#<CR>
Left
Enter
<CR>*enter#<CR>
NOTE :
Note1: If the command format is illegal, it will echo “Illegal format”.
Note2: If the command is not supported, it will echo “Unsupported item”.
Note3: If the command is disabled, it will echo “Block item”.
Note4: All the echo text will be same with the command you execute except query command
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