Appendix A — Specification, Interfaces, and Options
EasyCoder PD42 Printer User’s Guide 63
Interfaces
This section describes the standard interfaces, as well as the
optional kits that add functionality to your EasyCoder PD42.
RS-232 Serial Interface
Protocol
To change the serial settings, see Chapter 3, “Configuring the
Printer.”
Interface Cable
The computer end of the cable depends on the computer model.
The printer end is a DB9 pin plug, as shown below.
RS-232 DB9 pins
Parameter Default
Baud rate 9600
Character Length 8 bits
Parity None
Stop bits 1
Handshaking XON/XOFF and RTS/CTS
1
23
45
6
78
9
DB-9 Signal Meaning
1 External +5V DC Max 500 mA
2 TXD Transmit data
3 RXD Receive data
4
5GNDGround
6
7CTSClear to send
8 RTS Request to send
9
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