Rice Lake Okidata 320-390-420 Turbo - Service Guide - Manual (Page 137)

Page: 62
Service Guide ML320/321Turbo
Chapter C Software Diagnostics and Adjustments
APPENDIX C RS-232C SERIAL INTERFACE BOARD
1. GENERAL
This section describes the operation of the RS-232C Serial Interface board installed in the Printer as an
option using a start-stop synchronization and serial communications circuit. This serial interface board is
capable of transmitting and receiving simultaneously at speeds up to 19,200 bits per second. Two
protocols are available: printer Ready/Busy and X-ON/X-OFF modes.
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