DFI HD630-H81 - Manual (Page 22)

www.dfi .com
22
Chapter 2 Hardware Installation
Chapter 2
COM (Serial) Ports
COM 3 to COM 6 are fixed at RS232.
The pin functions of COM 1 and COM 2 port will vary according to JP2’s (for COM 1) and
JP11’s (for COM 2) setting. JP3 (for COM 1) and JP14 (COM 2) are used to configure Serial
COM ports to pure RS232 or RS232 with power. Refer to “COM1/COM2 RS232/422/485 Select”
and “COM1/COM2 RS232/Power Select“ in this chapter for more information.
The serial ports are asynchronous communication ports with 16C550A-compatible UARTs that
can be used with modems, serial printers, remote display terminals, and other serial devices.
Connecting External Serial Ports
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 serial port cable to the COM
connector. Make sure the colored stripe on the ribbon cable is aligned with pin 1 of the COM
connector.
COM 1/COM 2:
RS232/422/485
COM 1
COM 2
USB 2.0
BIOS Setting
Configure the serial COM ports in the Advanced menu (“Super IO Configuration” submenu) of
the BIOS. Refer to the chapter 3 for more information.
Note:
HD630-H81C: 6 COM (COM 1 to COM 6).
HD630-H81B/D: 2 COM (COM 1 and COM 2).
COM 3
COM 4
COM 3/COM 4:
RS232
2 1
9
DCD-
TD
RD
DTR-
GND
RTS-
DSR-
CTS-
RI-
COM 5 COM 6
COM 5/COM 6:
RS232
DCD- TD
RD
DT
R-
GND RT
S-
DSR
-
CTS-
RI
-
2
1 9