Printek FormsPro 4300 - Manual (Page 57)

Page B-1
APPENDIX B
OPTIONAL RS-422 INTERFACE
A 25-pin female “D” type connector is located on the rear of the printer above the power
connector. Connect a shielded cable between your computer and this connector. The pin-out
for this connector is shown below.
Pin Signal
7
9
10
11
12
Ground
RI+ Receive Data.
RI- Receive Data.
DO+ Transmit Data.
DO- Transmit Data.
RS-422 Serial Interface Connector
To configure your printer for serial data, more information is required than for some other
interfaces. In particular, you must know the baud rate, the number of data bits, the type of
parity checking, and the handshaking or flow control method required by your computer.
Check your computer manual or contact your computer dealer for this information.
Turn the printer on and enter the interface menu as described in the “Installation and Quick
Setup” section. Press the FUNCTION UP button to display “I/O: n”. Then press the
VALUE UP button until “n” is “Serial”.
The factory default values for the RS-422 serial configuration are 9600 baud, 8 data bits, no
parity, XON/XOFF handshake enabled, and ETX/ACK handshake disabled. If your
computer requires you to change any of these parameters, please refer to “Entering the
Interface Setup Menu” in the “Operation” section of this manual. Otherwise, simply press
SETUP again to exit the setup mode and reset the printer. The serial interface with the above
parameters is now active.