96

ADJUSTMENTS
(6) External Control by RS-232C
As Multi projection unit is equipped with a RS-232C port, various controls and, white balance and convergence adjustments
can be performed by an external computer.
By programming software ,it is possible not only to adjust White Balance,Convergence but to save and control the adjust-
ment data of each source.

1 Interface

1]Connector
D-sub 25-pin
2]Pin assignment
[3]Baud rate
4800 bps (1200, 2400, 9600, 19200 bps can also be
selected)
[4]Data format
Start:1-bit
Data:8-bit
Parity:0 (No parity)
Stop:1-bit
[5]Connection
COMPUTER
FG 1
TXD 2
RXD 3
CTS 5
GND 7
1 FG
2 RXD
3 TXD
5 CTS
7 GND
[6]Protocol
Multi projection unit from computer
Up to 3 commands possible
stx
stx
stx
ID
ID
ID
etx
etx
etx
Straight cable
TXD 3
RXD 2
CTS 8
GND 5
2 RXD
3 TXD
5 CTS
7 GND
1 FG
COMMAND
COMMAND
COMMAND
COMMAND COMMAND
ARGUMENT
ID : 2-Byte(ASC ll)COMMAND : 3-Byte(ASC ll)
stx=02h etx=03h
Multi projection unit Multi projection unit
COMPUTER
(IBM PC)
*ARGUMENT : 3-Byte(ASC ll)
Note : * In case of the numeral direct command
PIN No.
1
2
3
5
7
Symbo;
FG
RXD
TXD
CTS
GND
Signal Name
Frame Ground
Received Data
Transmitted Data
Clear To Send
Signal Ground