Rs-232 Serial Interface - Intermec EasyCoder PC41 User Manual

RS-232 Serial Interface

Printer connector:
Printer
Signal DB-9
1
RXD 2
TXD 3
DTR 4
GND 5
DSR 6
RTS 7
CTS 8
9
/.The combined load on the external +5V on both the parallel and the
1
serial port must not exceed a total of 500 mA.
EasyCoder PC41 User's Guide
DB-9pin female RS-232 connector.
EasyCoder PC41
Signal
+5V 500 mA
1
TXD
RXD
–
GND
RDY
–
RDY
–
Appendix C — Interfaces
Host
DB-9 DB-25
1
2 3
3 2
4 20
5 7
6 6
7 4
8 5
9
Signal
RXD
TXD
DTR
GND
DSR
RTS
CTS
53