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Appendix A — Specifications
80
PM42 Industrial Label Printer User Manual
Interface Specifications
These interfaces are available on the printer.
RS-232 Serial Interface
The printer end of the serial cable is a DB9 pin. The PC end depends on
the model of the desktop computer.
RS-232 Serial Cable DB9 Pins
Pin
Signal
Description
1
Ex5 VDC, Max 500 mA
2
TXD
Transmit data
3
RXD
Receive data
4
5
GND
Ground
6
7
CTS
Clear to send
8
RTS
Request to send
9
1 2
3
4
6
7
8
9
5
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