ZEOS PANTERA, User Manual

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Chapter 2 - The Mainboard
On-Board Peripherals
Your mainboard has all of the standard peripheral interfaces and
many extras built in. This eliminates the need for many
peripheral expansion cards and greatly enhances system
reliability.
The integrated peripheral interfaces include:
♦
Optional SCSI port (supports both SCSI-1 and -2 type devices)
♦
Two serial ports
♦
Parallel port
♦
Floppy drive controller
♦
Two IDE hard drive controller ports each capable of controlling two
hard drives
♦
Business audio with speaker output jack, alternate internal
speaker output, and microphone input jack
Serial Port
Your mainboard has two RS232C asynchronous serial ports,
which are generally referred to as COM1 (9-pin) and COM2
(25-pin) ports. The serial ports are used to attach mice, serial
printers, modems, or other serial peripheral devices. Both serial
ports are 16550 UART compatible for higher data transfer rates.
You can install up to two additional serial ports (COM3 and
COM4) simultaneously in your system. However, MS-DOS does
not manage more than two COM ports simultaneously very well.
Therefore, while you can install and use four COM ports, do not
attempt to use more than two at the same time or you may run
into problems. Specifically, you should not try to use COM1 and
COM3 at the same time, or COM2 and COM4 at the same time.