Benq LU9915 Control Protocols
Projector RS232 Command Control
Installation Guide
Table of Contents
Introduction ............................................................................................................................................. 3
Wire arrangement ........................................................................................................................................................ 3
RS232 pin assignment .................................................................................................................................................. 3
Connections and communication settings ......................................................................................... 4
RS232 serial port with a straight cable .................................................................................................................... 4
Settings .................................................................................................................................................................. 4
RS232 via LAN .............................................................................................................................................................. 6
Settings .................................................................................................................................................................. 6
RS232 via HDBaseT ..................................................................................................................................................... 6
Settings .................................................................................................................................................................. 6
Command table ....................................................................................................................................... 8
2
Introduction
Available functions and commands vary by model. Check the specifications and user manual of the purchased projector for
product functions.
Wire Arrangement
P1
Color
P2 1 Black
1 2 Brown
3
3
Red
2 4 Orange
4 5 Yellow
5
6
Green
6
7
Blue
7 8 Purple
8
9
Gray
9
Case
Drain wire
Case
Pin
Description
Pin
Description
1
NC
2
RXD
3
TXD
4
NC
5
GND
6
NC
7
RTS
8
CTS
9
NC
The document describes how to control your BenQ projector via RS232 from a computer. Follow the
procedures to complete the connection and settings first, and refer to the command table for RS232
commands.
Wire arrangement
RS232 pin assignment
3
Connections and communication settings
On-screen images in this document are for reference only. The screens may vary depending on your Operating System,
I/O ports used for connection, and the specifications of the connected projector.
PC or laptop
Communication cable (straight)
D-Sub 9 pin
D-Sub 9 pin
(female)
D-Sub 9 pin
(male)
D-Sub port (male or female)
on a projector
Choose one of the connections and set up properly before RS232 control.
RS232 serial port with a straight cable
Settings
1. Determine the COM Port name used for the RS232 communications in Device Manager.
4
2. Choose Serial and the corresponding COM port as the communication port. In this given example,
Baud rate
9600 bps (It cannot be changed)
Check the baud rate of the connected projector from its OSD menu.
Data length
8 bit
Parity check
None
Stop bit
1 bit
Flow control
None
COM6 is selected.
3. Finish Serial port setup.
5
RS232 via LAN
PC or laptop
RJ45 port on a projector
LAN cable
PC or laptop
HDBaseT compatible device
D-Sub 9 pin
RJ45
RJ45 port on a projector
LAN cable
D-Sub 9 pin
Settings
1. Find the Wired LAN IP address of the connected projector from the OSD menu and make sure the
projector and the computer are within the same network.
2. Input 8000 in the TCP port # field.
RS232 via HDBaseT
Settings
1. Determine the COM Port name used for the RS232 communications in Device Manager.
2. Choose Serial and the corresponding COM port as the communication port. In this given example,
COM6 is selected.
6
3. Finish Serial port setup.
Baud rate
9600 bps (It cannot be changed)
Check the baud rate of the connected projector from its OSD menu.
Data length
8 bit
Parity check
None
Stop bit
1 bit
Flow control
None
7
Command table
Available features differ by projector specification, input sources, settings, etc..
Commands are working if the standby power is 0.5W or a supported baud rate of the projector is set.
Uppercase, lowercase, and a mixture of both types of characters are accepted for a command.
If a command format is illegal, it will echo Illegal format.
If a command with correct format is not valid for the projector model, it will echo Unsupported item.
If a command with correct format cannot be executed under certain condition, it will echo Block item.
If RS232 control is performed via LAN, a command works whether it starts and ends with <CR>. All the commands and
behaviors are identical with the control through a serial port.
Function
Type
Operation
ASCII
Setting
Condition
Support
Power
Write
Power On
<CR>*pow=on#<CR>
StandBy
YES
Write
Power off
<CR>*pow=off#<CR>
Lamp On
YES
Read
Power Status
<CR>*pow=?#<CR>
Any State
YES
Source
Selection
Write
COMPUTER/YPbPr
<CR>*sour=RGB#<CR>
Lamp On &
Not in blank
screen
YES
Write
COMPUTER 2/YPbPr2
<CR>*sour=RGB2#<CR>
YES
Write
Component
<CR>*sour=YPbr#<CR>
NO
Write
Component2
<CR>*sour=ypbr2#<CR>
NO
Write
DVI-A
<CR>*sour=dviA#<CR>
NO
Write
DVI-D
<CR>*sour=dvid#<CR>
YES
Write
HDMI
<CR>*sour=hdmi#<CR>
YES
Write
HDMI 2
<CR>*sour=hdmi2#<CR>
NO
Write
Composite
<CR>*sour=vid#<CR>
NO
Write
S-Video
<CR>*sour=svid#<CR>
NO
Write
Network
<CR>*sour=network#<CR>
NO
Write
USB Display
<CR>*sour=usbdisplay#<CR>
NO
Write
USB Reader
<CR>*sour=usbreader#<CR>
NO
Write
Wireless
<CR>*sour=wireless#<CR>
NO
Write
DisplayPort
<CR>*sour=dp#<CR>
YES
Write
3G-SDI
<CR>*sour=sdi#<CR>
YES
Write
HD Connect
<CR>*sour=hdconnect#<CR>
NO
Write
HDBaseT
<CR>*sour=hdbaset#<CR>
YES
Read
Current source
<CR>*sour=?#<CR>
YES
Picture Mode
Write
Dynamic
<CR>*appmod=dynamic#<CR>
Source
Locked
NO
8
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