DFI 586ITBD, User Manual

Page: 35 / 89

2
Hardware Installation
35
Ports and Connectors
The system board comes with two serial ports, one parallel
printer port, one shrouded floppy disk header, two shrouded IDE
hard disk headers, two connectors for external USB ports, one IrDA
connector, a PS/2 mouse port, a PS/2 or AT keyboard port, a fan
connector, one AT power supply connector and one ATX power
supply connector.
Serial Ports
The built-in serial ports are RS-232C asynchronous communication
ports with 16C550A-compatible UARTs that can be used with
modems, serial printers, remote display terminals, and other serial
devices. You can set the serial ports’ I/O address in the Integrated
Peripherals setup of the Award BIOS.
Port Configuration
Serial Port 1
Serial Port 2
COM1
3F8h*
3F8h
COM2
2F8h
2F8h*
COM3
3E8h
3E8h
COM4
2E8h
2E8h
* Default
The serial ports use the following system I/O addresses:
Connecting the Serial Ports
Two serial port cables mounted on a
card-edge bracket are provided with
the system board. Connect one serial
port cable to connector J3 for COM
1 primary serial port and the other
serial port cable to connector J2 for
the COM 2 secondary serial port.
Make sure the colored stripes on the
ribbon cables are aligned with pins 1
of connectors J2 and J3. Mount the
card-edge bracket to the system
chassis.