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EP739 RS232 protocol function list
Interface
3 wires RS-232C Protocol
Baud Rate : 9600
Data Bits: 8
Parity: None
Stop Bits: 1
Flow Control : None
Command Sequence
Write Basic Protocol
Header :
Address Code :
Command Code :
Data :
Terminator Code :
Delimiter : Space
Command Sequence
Read Basic Protocol
‘*’
‘0’ fixed
ASCII Text
Fixed 3 digits
Carriage Return
Carriage Return
Copyright © 2004 Optoma Inc.
V.C04
Header
Address Code
Command Code
Data
Terminator Code
Delimiter
Acknowledgement
Basic Protocal
Receive OK
Unknown Command
Invalid Command
In current source
Data value out of range
Data response
Function List
Power On
Power Off
Source PC
Keystone
Zoom (*3)
Mute
‘*’
‘0’ fixed
ASCII Text
‘?’ fixed
Carriage Return
Carriage Return
˝*000<CR>˝
˝*255<CR>˝
˝*001<CR>˝
˝*002<CR>˝
As Write Command Format
Basic(Original) Basic (Update)
* 0 IR 001
* 0 IR 002
* 0 IR 003
* 0 IR 004
* 0 IR 005
* 0 IR 006
OKOKOKOKOK
* 0 IR 002
* 0 IR 003
* 0 IR 004
* 0 IR 005
* 0 IR 006
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Freeze
Menu
Up
Down
Right
Left
Enter
Re-Sync
Source Analog RGB for D-sub
Source Digital RGB
Source HDTV(YPbPr) for D-sub
Source S-Video
Source Composite Video
Source Component Video
Aspect ratio 16: 9
Aspect ratio 4: 3
Volume +
Volume –
Brightness
Contrast
Color Temperature
Source Analog RGB for DVI Port (*4)
Source Analog YPbPr for DVI Port (*4)
* 0 IR 007
* 0 IR 008
* 0 IR 009
* 0 IR 010
* 0 IR 011
* 0 IR 012
* 0 IR 013
* 0 IR 014
* 0 IR 015
* 0 IR 016
* 0 IR 017
* 0 IR 018
* 0 IR 019
* 0 IR 020
* 0 IR 021
* 0 IR 022
* 0 IR 023
* 0 IR 024
* 0 IR 025
* 0 IR 026
* 0 IR 027
* 0 IR 028
* 0 IR 029
Read(Query) Command
Basic Return Status Mean
Lamp Status * 0 Lamp ?
* 0 Lamp
Source * 0 Src ? Src 0
Lamp 0
Lamp 1
0000
Src 1
Src 2
Src 3
Src 4
Src 5
Src 6
Lamp Off
Lamp On
Get the Lamp Hours
No signal connect
Analog RGB display
Digital RGB display
HDTV display
S-Video display
Composite Video Display
Component Video display
PS: 1. Original command is (``*_0_IR_002\r\n``,12)
* 0 IR 007
* 0 IR 008
* 0 IR 009
* 0 IR 010
* 0 IR 011
* 0 IR 012
* 0 IR 013
* 0 IR 014
* 0 IR 015
* 0 IR 016
* 0 IR 017
* 0 IR 018
* 0 IR 019
* 0 IR 020
* 0 IR 021
* 0 IR 022
* 0 IR 023
* 0 IR 024
* 0 IR 025
* 0 IR 026
* 0 IR 027
* 0 IR 028
* 0 IR 029
2. Command for ‘’Power On’’ only is (``OKOKOKOKOK\r\n``,12),
*3. Not support
*4. Select to DVI
Silent mode RS232 implementation.
The objective of silent mode is intended for professional presentation so that the OSD
will not pop up to interfere with presentation.
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To further enhance the viewing experience of the audience – more precise commands
are added to minimize the disruption during a source change.
Furthermore, to avoid confusion with old RS232 commands and possible software
maintenance problem the silent OSD are implemented using new RS232 commands.
The side benefit of this implementation is user choose silent OSD or non-silent OSD
just by invoking different RS232 commands
IR 030 source lock on
IR 031 source lock off
IR 032n source select n=1 is DVI-D
n=2 is DVI-RGB (*1)
n=3 is DVI-YPbPr (*1)
n=4 is D-sub RGB
n=5 is D-sub YPbPr (include 480i, 480p, 720p, 1080i, 576i, 576p)
n=6 is D-sub SCART
n=7 is RCA YPbPr (include 480i, 480p, 720p 1080i, 576i,
576p)(*2)
n=8 is composite
n=9 is S-video
IR 033n aspect ratio n=1 is 4:3
n=2 is 16:9
n=3 is window = 4:3 inside 16:9
n=4 is letterbox
IR 034nn brightness nn= 00-99, 99 is the brightest
IR 035nn contrast nn=00-99, 99 is highest contrast
IR 036nn volume nn=00-99, 99 is loudest
IR 037nn zoom nn=0-31, 31 is maximum zoom
IR 038n color temperature n=1 is low
n=2 is medium
n=3 is high
New read commands (not related to silent mode)
ID ? returns ID x x= any unique ID such as serial no.
Hour? returns “HR nnnn\r” nnnn= lamp hours in 4 digits
*1: select to DVI
*2: Not support
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