Oki Pacemark 4410 Service Handbook page 180

APPENDIX B RS-232C SERIAL INTERFACE BOARD (Option)
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.
For this serial interface to be installed in a Pacemark 4410, you need to have an
adapter board (PAA PCB).
40496501TH Draft Version
B-1