Operator`s manual

22 A-Class
RS-232 Cables*
Part # 32-2300-01 Part # 32-2301-01
*The serial port requires a DB9 male connector (e.g., Startech C9PSM).
3.3.1.3.1 RS-422/485 Communications
To use RS-422/485 communications, the main logic card must be reconfigured, as described below:
CAUTION
Always wear a wrist strap and follow standard ESD prevention measures when handling the Main
Logic Card.
1. Turn ‘Off’ the power switch, unplug the AC Power Cord from the printer, and remove any interface
cable(s) already attached to the Main Logic Card.
2. Remove the two Screws securing the Main Logic Card to the printer. Slide the card out of the printer
and place it on a static free work area.
Main Logic Card
Screws
 Note: Depending upon the model of printer, the location of the Main Logic Card can vary.