Dukane Imagepro 8782 Portable Lcd Projector Users Manual

33

Command Control via the Network
Command Format
Command formats differ among the different communication ports.
● TCP #23
You can use the RS-232C commands without any changes. The reply data 
format is the same as the RS-232C commands. However, the following reply 
will be sent back in the event of authentication failure when authentica\
tion is 
enabled.

ReplyError code
0x1F0x040x00
● TCP #9715
Send Data format
The following formatting is added to the header (0x02), Data length (0x0D), 
Checksum...

34

Command Control via the Network
Reply Data format
The connection ID (the data is same as the connection ID data on the sending 
data format) is attached to the RS-232C commands reply data.

ReplyConnection ID
0x06  byte

ReplyConnection ID
0x15  byte

ReplyError codeConnection ID
0x1C   bytes   byte



ReplyDataConnection ID
0x1D  bytes   byte
ReplyStatus codeConnection ID
0x1F  bytes   byte
ReplyAuthentication Error codeConnection ID
0x1F0x040x00  byte...

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/8782
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)
5Ground 3H. sync / Composite sync.
6Ground Red 4V. sync.
7Ground...

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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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....