177
RS-232C Adjustment Mode
5.5.2 Interface
1) Connector
D-sub 9 pins
2) Pin layout
3) Baud Rate
4800 bps (standard)
(switch-able to 1200, 2400, 9600, 19200, 38400 bps)
(NOTE) Set the baud rate to match that of the computer presently in use. Moreover, in the case that the RS-232C
cable is very long, we recommend that you make the baud rate lower.
4) Data Format
Start: 1-bit
Data: 8-bit
Parity: 0 (no parity)
Stop: 1-bit
5) Connection
(NOTE) As computer manufactures may not use the same pin assigments. In case of communication difficalties,
please check pin functions not just pin numbers.
6) Protocol
From computer to plasma display
Straight Cable
* D-sub 9-pin/D-sub 25-pin conversion tables are now available on the market.
(1) When transmitting commands individually
STX (02 hex)
ID (2 Byte)
COMMAND (3 Byte)
ETX (03 hex)
COMMAND 3 Byte (ASCII)
ARGUMENT 3 Byte (ASCII)
(2) When transmitting commands in batches (up to max. 3 commands) ....
(NOTE)
STX (02 hex)
ID (2 Byte)
COMMAND (3 Byte)
COMMAND (3 Byte)
COMMAND (3 Byte)
ETX (03 hex)
(3) When transmitting direct numeric commands
STX (02 hex)
ID (2 Byte)
COMMAND (3 Byte)
ARGUMENT (3 Byte)
ETX (03 hex)
5
9
6
1
Pin No.
Signal
1
NC (not connected)
2
TxD (Transmit Data)
3
RxD (Receive Data)
4
NC (not connected)
5
GND
6
NC (not connected)
7
NC (not connected)
8
RTS (Request To Send)
9
NC (not connected)
PLASMA DISPLAY
PLASMA DISPLAY
Control PC
(PDP-503CMX/503MXE and
Control PC
(PDP-503CMX/503MXE and
(with D25 serial port )
PDP-433CMX/433MXE)
(with D9 serial port)
PDP-433CMX/433MXE)
2
2
3
2
3
2
RXD 3
2 TXD
RXD 2
2 TXD
TXD 2
3 RXD
TXD 3
3 RXD
CTS 5
8 RTS
CTS 8
8 RTS
GND 7
5 GND
GND 5
5 GND
