Serial Ports - DFI G586OP User Manual

Serial Ports

The built-in serial ports are RS-232C asynchronous
communication ports with 16C550-compatible UARTs
that can be used with modems, serial printers, remote
display terminals, and other serial devices. The
G586OPA system board supports IRQ4 for the primary
serial port and IRQ3 IRQ9 for the secondary serial port.
These serial ports use the following system I/O
addresses:
Port Configuration
COM1
COM2
COM3/COM4
Connecting the Serial Ports
Two DB-9P serial port cables are provided with the
motherboard. They are mounted on a card-edge bracket
along with the PS/2 mouse cable. The upper serial port
cable should be used for the COM-A primary serial
port; connect it to Connector JP7 on the motherboard.
The lower serial port cable should be used for the
COM-B secondary serial port; connect it to Connector
JP8 on the motherboard. Make sure the colored stripes
on the ribbon cables align with pin 1 of Connectors JP7
and JP8. Mount the card-edge bracket to the system
chassis.
I/O Address
3F8h
2F8h
220h/228h, 2E8h/2E0h,
3E8h/2E8h or 338h/238h
Installation Overview u 2-27
G586OPA