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RS-232C Interface
It is possible to control this machine, if it is connected by an RS-232C cross cable (D-Sub9 pin) to a
PC. Otherwise, this machine can be controlled via a computer network by connecting it with a LAN
cable and sending of control commands. Please use it after you have understood this by reading
professional books, or by discussing it with a system administrator.
RS-232C Specifications
This unit
Mode
Character Length
Parity
Start Bit
Stop Bit
Data rate
Data format
TCP/IP-connection
Before you can control it via LAN, you have to establish a TCP-connection via a "3-way-handshake". It is
necessary for a connection authentication to send from the projector "PJ_OK" and - within 5 seconds after
sending a "PJREQ" – to receive "PJACK". Please perform this operation – after confirming the operating
status of the projector - again after establishment of a TCP connection, if you cannot send within 5 seconds
"PJ_NG" or could not receive "PJNAK".
Projector
TCP-layer connection establishment
TCP port number 20554
Three-way handshake
Control PC
All manuals and user guides at all-guides.com
Pin No.
2
3
5
1,4,6 - 9
●
PC refers to the controller such as a personal computer.
Non-synchronous
8 bit
None
1
1
19200 bps
Binary
Within 5 seconds
ＰＪ_ＯＫ
ＰＪＲＥＱ
Connection authentication procedure
Signal
Function
RxD
Receive data
TxD
Transmit data
GND
Signal ground
N/C
-
D0 D1
D2 D3
Start Bit
ＰＪＡＣＫ
Projector Control
ENGLISH
Signal Direction
PC→This unit
This unit→PC
-
-
D4 D5
D6 D7
Stop Bit
67
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