Using The Rs-422 Serial Interface - Lexmark Optra T Reference

RS-232C Port Compatibility
The RS-232C port or the Tri-Port interface option card is compatible with the Plug and
Play External COM Device Draft Specification, Rev. 0.86.
Devices that are compatible with Plug and Play COM can:
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Using the RS-422 Serial Interface

This section describes how to use the RS-422 serial interface. If you are using
RS-232, see "Using the RS-232C Serial Interface" on page 8-32.
How to Connect the RS-422 Serial Interface
You need to purchase a custom cable for RS-422 support. You may also need to
purchase an adapter card and software to run RS-422 on your computer. Contact the
place where you bought your printer.
Detect attachment of serial devices.
Identify the device.
Locate a driver for the device.
Detect detachment of serial devices.
8-43
Interfaces