DFI EL331-RM - Manual (Page 32)

32
2
Hardware Installation
Parallel
COM (Serial) Ports
COM 1
COM 1
DCD- TD RD D
TR
-
GND
1 2 3 4 5
R
T
S-
RI
-
DSR
-
CT
S-
6 7 8 9
COM 2
The serial ports are RS232 asynchronous communication ports with 16C550A-
compatible UARTs that can be used with modems, serial printers, remote display
terminals, and other serial devices.
Connecting an External Serial Port
Your COM port may come mounted on a card-edge bracket. Install the card-edge
bracket to an available slot at the rear of the system chassis then insert the se-
rial port cable to the COM 2 connector. Make sure the colored stripe on the rib-
bon cable is aligned with pin 1 of the COM 2 connector.
BIOS Setting
Configure the serial ports in the Integrated Peripherals submenu (“Super IO Con-
figuration” section) of the BIOS. Refer to chapter 3 for more information.
COM 2
1 2
9
DCD-
TD
GND
RTS-
RI-
RD
DTR-
DSR-
CTS-