DFI HR100-CRM - Manual (Page 32)

32
2
Hardware Installation
COM 2
COM (Serial) Ports
COM 1
COM 3 to COM 6 are fi xed at RS232.
The pin function of COM 1 and COM 2 ports will vary according to JP4/JP5’s set-
ting. Refer to “COM1/COM2 RS232/RS422/RS485 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 se-
rial port cable to the COM connector. Make sure the colored stripe on the ribbon
cable is aligned with pin 1 of the COM connector.
BIOS Setting
Confi gure the serial ports in the Advanced menu (“Super IO Confi guration” sub-
menu) of the BIOS. Refer to chapter 3 for more information.
COM 4
COM 3 COM 5
COM 6
COM 1 and COM 2:
RS232/422/485
COM 3 to COM 6:
RS232
1 2
9
DCD-
TD
GND
RTS-
RI-
RD
DTR-
DSR-
CTS-