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17
Connections
SERIAL connection
Notes:
(1) Use the RS-232C cable to connect the computer to the Wide Plasma Display.
(2) The computer shown is for example purposes only.
(3) Additional equipment and cables shown are not supplied with this set.
SERIAL
RS-232C cable
D-sub 9p
COMPUTER
The SERIAL port is used when the Wide Plasma Display is controlled by a computer.
The SERIAL port conforms to the RS-232C interface specification, so that the Wide Plasma Display can be controlled
by a computer which is connected to this port.
The computer will require software which allows the sending and receiving of control data which satisfies the conditions
given below. Use a computer application such as a software programming language. Refer to the documentation for the
computer application for details.
Command
Command
PON
POF
AUU
AUD
AMT
IIS
DAM
Control details
Power ON
Power OFF
Volume increase
Volume decrease
Mute (toggle)
Input select (toggle)
AV Mode
Component / RGB mode (processed as
Y/P
B
/P
R
or RGB signals as set by this unit)
PC mode
Screen mode select (toggle)
NORMAL (4:3)
ZOOM
FULL
JUST
AUTO
Parameter
None
None
None
None
None
None
VID
YP1
RG1
None
NORM
ZOOM
FULL
JUST
SELF
STX
Start
(02h)
ETX:C2C1 C3 P2P1 P3 P4 P5
Colon Parameter(s)
(1 - 5 bytes)
End
(03h)
3-character
command (3bytes)
9876
53214
Pin layout for RS-232C
RS-232C Pin assignment
Pin number
2
3
5
4
•
6
7
8
1 • 9
Signal
R X D
T X D
GND
NC
Shorted
NC
Communication parameters
Signal level
Synchronization method
Baud rate
Parity
Character length
Stop bit
X parameter
S parameter
RS-232C compliant
Asynchronous
9600 bps
None
8 bits
1 bit
None
None
Basic format for control data
The transmission of control data from the computer starts
with a STX signal, followed by the command, the
parameters, and then an ETX signal in that order. If there
are no parameters, then the parameter signal does not
need to be sent.
Note:
(1) If multiple commands are transmitted, be sure to wait
for the response for the first command to come from
this unit before sending the next command.
(2) If an incorrect command is sent by mistake, this unit
will send an “ER401” command back to the computer.