PX865PE7 PRO/ PX865PE7
Serial and Parallel Interface Ports
The series mainboard comes equipped with two serial ports and one parallel port on the back panel.
These interface ports will be explained below.

Printer Port

COM1 COM2

Parallel Interface Port: PRT

The parallel port on your system has a 25-pin, DB25 connector and is used to interface with parallel
printers and other devices using a parallel interface.

The Serial Interface: COM1/ COM2

The serial interface port is sometimes referred to as an RS-232 port or an asynchronous
communication port. Mice, printers, modems and other peripheral devices can be connected to a
serial port.
Audio Port Connectors
Speaker Out is used to connect to speakers or headphones. If the Super 5.1 driver is installed the
Speaker Out becomes the Front Speaker.
Line In can be connected to an external CD player, Tape player or other audio devices for audio
input. If the Super 5.1 driver is installed Line In becomes the Rear Speaker.
Mic In is used to connect to a microphone. If the Super 5.1 driver is installed the Mic In becomes the
Subwoofer/ Center out.
This mainboard supports Super 5.1 Channel Audio effects which
turns your standard Speaker Out, Lin In, Mic In audio connectors
into a 6 channel audio system. See Appendix II for more information.
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