Microsoft System Board Computer Hardware User Manual


 
18
Hardware Installation
2.7 Connecting the Ribbon Cables and Wires of
the Ports and Connectors
2.7.1 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.
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
JP4 for COM 1 primary serial port
and the other serial port cable to
connector JP3 for the COM 2
secondary serial port. Make sure
the colored stripes on the ribbon
cables are aligned with pins 1 of
connectors JP3 and JP4. Mount the
card-edge bracket to the system
chassis.