Communicating With A Serial Printer - Husky MP2500 Manual

13.7.5 Communicating with a serial printer

13.7.5.1 Cable
To connect to a serial printer, you'll need a simple 'crossed cable':
Printers usually don't transmit data back to the computer (unless using the
XON/XOFF protocol), so you may not need to connect the printer's TXD
and CTS pins (pin 2 and pin 5). If you are willing to use a slow Baud rate,
you may even be able to dispense with all handshaking and use the
following 2-wire cable:
If you do this, you must also turn CTS handshaking off on the MP2500 (ie
set the CTS option to No, using UTIL).
13.7.5.2 Configuration
As the printer is connected by a short cable, you can use the fastest speed
available and simple CTS/RTS handshaking.
To show some of the versatility provided by configurable communications,
assume that the printer does not have a buffer, perform a LF automatically
when it receives a CR character, or handshake properly, but does support
the XON/XOFF protocol.
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MP2500
2 ---------- 2
3 ---------- 3
5 ---------- 7
7 ---------- 5
8 ---------- 4
MP2500
3 ---------- 3
5 ---------- 7
Printer
Printer
H MP2500 System Developer's Guide
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