External Control
It is possible to control this unit by connecting it to a PC using an RS232C cross cable (Dsub 9pin).
The projector can be controlled by connecting it to a PC through the computer network with a LAN cable for control
commands to be sent to the projector.
Please use it after you have gained proper understanding from professional books or consulting the system
administrator.
RS232C Specifications
This Unit
1
5
2
3
6
9
5
1, 4, 6 9
PC refers to the controller, such as a personal computer.
D0 D1
D2 D3
D4 D5
Start bit
TCP/IP Connection
Before controlling via LAN, it is necessary to establish connection of the TCP layer by a "3way handshake", followed
by sending out "PJREQ" and receiving "PJACK" within five seconds after the projector sends out "PJ_OK" for connection
authentication.
If you are unable to complete sending within five seconds, or when "PJ_NG" or "PJNAK" is received, check the operating
status of the projector, followed by performing the steps again starting from establishment of a TCP connection,
Projector
Establishment of TCP Connection
TCP Port No. 20554
3-way Handshake
Controlling PC
.
72
Pin No.
Signal
RxD
TxD
GND
N/C
D6 D7
Stop bit
Within 5 Seconds
PJ_OK
PJREQ
Connection Authentication Procedure
Function
Receive data
Transmission data
Signal ground
—
Mode
Character length
Parity
Start bit
Stop bit
Data rate
Data format
PJACK
Projector Control
Signal Direction
PC This unit
This unit PC
—
—
Nonsynchronous
8 bit
None
1
1
19200 bps
Binary