Interface - Pioneer PDP-425CMX Technical Manual
For pioneer plasma display monitor when used with video cards (expansion solutions cards)
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Also See for PDP-425CMX:
- Technical manual (188 pages) ,
- Service manual (184 pages) ,
- Operating instructions manual (98 pages)
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5.5.2 Interface
1) Connector
D-sub 9 pins (male/straight)
2) Pin layout
Pin No.
Signal
1
NC (not connected)
2
TxD (Transmit Data)
3
RxD (Receive Data)
4
NC (not connected)
5
GND
3) Baud Rate
9600 bps (standard)
(switch-able to 1200, 2400, 4800, 19200, 38400 bps)
Note
The baud rate of this display should be set to match the baud rate of the PC.
Also, when the RS-232C cable is extended over a long distance, use a slower baud rate.
4) Data format
Start bit: 1 bit
Data bit: 8 bit
Parity:
no
Stop bit: 1 bit
5) Connection
Control PC
(with D25 serial port )
2
RXD 3
3
TXD 2
2
CTS 5
GND 7
* D-sub 9-pin/D-sub 25-pin conversion tables are now available on the market.
6) Protocol
From the PC to the display
(1) Sending one command at a time:
STX (02 hex)
ID (2 Byte)
(2) Sending numerical direct commands:
STX (02 hex)
ID (2 Byte)
ID, COMMAND, ARGUMENT are transmitted as ASCII characters.
From the display to a PC
(1) Echo back (Normal response)
Command received and returned but the ID is not returned.
STX (02 hex)
COMMAND (3 Byte or 6 Byte)
Received command is a numerical direct effect command and numerical data is returned:
STX (02 hex)
COMMAND (3 Byte)
(2) Error (Abnormal response)
Received command is a non-corresponding command, 'ERR' is returned:
STX (02 hex)
Received command cannot be processed (when PON is received when the power is already ON, etc.), 'XXX' is
returned:
STX (02 hex)
Pin No.
6
NC (not connected)
7
NC (not connected)
8
RTS (Request To Send)
9
NC (not connected)
Plasma Display
(PDP-425CMX/PDP-42MXE10)
2 TXD
3 RXD
8 RTS
5 GND
COMMAND (3 Byte or 6 Byte)
COMMAND (3 Byte)
ARGUMENT (3 Byte)
ERR (3 Byte)
ETX (03 hex)
XXX (3 Byte)
ETX (03 hex)
Signal
Control PC
(with D9 serial port)
RXD 2
TXD 3
CTS 8
GND 5
ETX (03 hex)
ARGUMENT (3 Byte)
ETX (03 hex)
ETX (03 hex)
ETX (03 hex)
RS-232C Adjustment
1
5
6
9
Plasma Display
(PDP-425CMX/PDP-42MXE10)
2
2 TXD
3
3 RXD
2
8 RTS
5 GND
Straight Cable
193
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