Dukane Imagepro 8755g-Rj Projector Users Manual

35

Command Control via the Network
Automatic Connection Break
The TCP connection will be automatically disconnected after there is no 
communication for 30 seconds after being established.
Authentication
The projector does not accept commands without authentication success 
when authentication is enabled. The projector uses a challenge response type 
authentication with an MD5 (Message Digest 5) algorithm.
When the projector is using a LAN, a random 8 bytes will be returned if 
authentication is...

1
Projector
8755G-RJ/8912-RJ
User's Manual (detailed)
Technical
Resolution (H x V)H. frequency (kHz)V. frequency (Hz) RatingSignal mode
720 x 40037.9 85.0VESATEXT
640 x 48031.5 59.9VESAVGA (60Hz)
640 x 48037.9 72.8VESAVGA (72Hz)
640 x 48037.5 75.0VESAVGA (75Hz)
640 x 48043.3 85.0VESAVGA (85Hz)
800 x 60035.2 56.3VESASVGA (56Hz)
800 x 60037.9 60.3VESASVGA (60Hz)
800 x 60048.1 72.2VESASVGA (72Hz)
800 x 60046.9 75.0VESASVGA (75Hz)
800 x 60053.7 85.1VESASVGA (85Hz)
832 x 62449.7 74.5 Mac16” mode
1024 x...

2

Initial set signals
Initial set signals
The  following  signals  are  used  for  the  initial  settings.  The  signal  timing  of  some 
PC  models  may  be  different.  In  such  case,  adjust  the  items  V  POSITION  and  H 
POSITION in IMAGE menu. 
 
computer Signal
Horizontal signal timing (μs)computer Signal
Vertical signal timing (lines)
(A)(B)(C)(D)(a)(b)(c)(d)
TEXT2.03.020.3.0TEXT342400
VGA (60Hz)3.8.925.40.6VGA (60Hz)233480 0
VGA (72Hz) .34.20.30.8VGA...

3

Connection to the ports
ACOMPUTER IN1, BCOMPUTER IN2, CMONITOR OUT
 D-sub 5pin mini shrink jack
•  Video signal: RGB separate, Analog, 0.7Vp-p, 75Ω 
terminated (positive)
• H/V. sync. Signal: TTL level (positive/negative)
• Composite sync. Signal: TTL level
PinSignalPinSignal
Video Red 0Ground
2Video Green(No connection)
3Video Blue
2A: SDA (DDC data)
B, C: (No connection)4(No connection)
5Ground3H. sync / Composite sync.
6Ground Red4V. sync.
7Ground Green...

4

LAN

Connection to the ports (continued)
432
HVIDEO
RCA jack
• System: NTSC, PAL, SECAM, PAL-M, PAL-N, NTSC4.43
• 1.0±0.1Vp-p, 75Ω terminator
GS-VIDEO
Mini DIN 4pin jack
PinSignal
Color signal 0.286Vp-p (NTSC, burst), 75Ω terminator
Color signal 0.300Vp-p (PAL/SECAM, burst) 75Ω terminator
2Brightness signal, 1.0Vp-p, 75Ω terminator
3Ground
4Ground
FD
H
EG
COMPONENT VIDEO D Y, E Pb/Cb, F Pr/Cr
RCA jack x3
• System: 525i(480i), 525p(480p), 625i(576i), 750p(720p),25i(080i)...

5

Connection to the ports (continued)
IAUDIO IN1, JAUDIO IN2
Ø3.5 stereo mini jack
• 200 mVrms 47kΩ terminator
AUDIO IN3 KL, LR
RCA jack x2
• 200 mVrms 47kΩ terminator
MAUDIO OUT
Ø3.5 stereo mini jack
• 200 mVrms 1kΩ output impedance
To input SCART RGB signal;
  ex.:
LAN
I
J
M
KL
To input SCART RGB signal to the projector, use a SCART to RCA cable. 
Connect the plugs refer to above ex.. For more reference, please consult\
 your dealer.
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:˜:Ì:»:À:Æ:w:©
SCART...

6

Connection to the ports (continued)
NUSB
USB B type jack
PinSignal
+5V
2- Data
3+ Data
4Ground
2
34
LAN
ON
OCONTROL
D-sub 9pin plug
• About the details of RS-232C communication,  
please refer to the following page.
PinSignalPinSignalPinSignal
(No connection)4(No connection)7RTS
2RD5Ground8CTS
3TD6(No connection)9(No connection)
9
2345
678
PLAN
RJ-45 jack
PinSignalPinSignalPinSignal
TX +4-7-
2TX -5-8-
3RX +6RX ---
8765432
P 

7

RS-232C Communication
RS-232C Communication
Connecting the cable
. Turn off the projector and the computer. 
2. Connect the CONTROL port of the projector with a RS-232C port of 
the computer by a RS-232C cable (cross). Use the cable that fulfills the 
specification shown in the previous page.
3. Turn the computer on, and after the computer has started up turn the 
projector on.
Communications setting
9200bps, 8N
1. Protocol
Consist of header (7 bytes) + command data (6 bytes)
2....

8

RS-232C Communication (continued)
Requesting projector status (Get command)
() Send the following request code from the PC to the projector.
	 Header	+	Command	data	(‘02H’	+	‘00H’	+	type	(2	bytes)	+	‘00H’ 	+	‘00H’)	
(2) The projector returns the response code  ‘1DH’	+	data	(2	bytes)
 to the PC.
Changing the projector settings (Set command)
() Send the following setting code from the PC to the projector.
		 Header	+	Command	data	(‘01H’ 	+	‘00H’	+	type	(2	bytes)	+	setting	code	(2	bytes))	
(2)...

9

Names Operation TypeHeader Command DataCRCActionType
Setting Code
PowerSet Turn off BE  EF0306  00 2A  D3 01  00 00  60 00  00
Turn on BE  EF0306  00 BA  D2 01  00 00  60 01  00Get BE  EF0306  00 19  D3 02  0000  60 00  00[Example return] 
  00  00  01  00 02  00 
  [Off]  [On] [Cool down]
Input SourceSetCOMPUTER1 BE  EF0306  00 FE  D2 01  0000  20 00  00COMPUTER2 BE  EF0306  00 3E  D0 01  0000  20 04  00COMPONENT BE  EF0306  00 AE  D1 01  0000  20 05  00S-VIDEO BE  EF0306  00 9E  D3 01  0000  20 02...