Intermec EasyCoder 301 – Service Manual Ed. 3
48
Chapter 11 CPU Board
Description
The EasyCoder 301 is fitted with two communication ports on its
rear plate:
• One-way parallel communication port
• Two-way serial communication port
The printer will automatically switch between the two ports so as
to detect all incoming data. In the Direct Protocol, it is possible to
specify one of the ports as standard IN and/or OUT channel, see
SETSTDIO instruction in the EasyCoder 301 Direct Protocol
Programmer's Guide.
• Use the parallel port with the Windows Driver, because it is
faster than the serial interface.
• Use the serial port with the Direct Protocol, because you can
receive error messages and other data from the printer. This is not
possible using the parallel port.
11.6 Communication
Ports
Serial port
Parallel port
Card 2
Card 1
