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2
Hardware Installation
COM (Serial) Ports
COM 1
RS232/422/485
CTS-
DSR-
DTR-
RD
COM 3 to COM 6:
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.
34
COM 1:
9
RI-
RTS-
GND
TD
DCD-
2
1
RS232
COM 4
COM 5
COM 3
COM 6
CTS-
COM 2:
DSR-
RS232/422/485
DTR-
RD
COM 2
9
RI-
RTS-
GND
TD
DCD-
2
1
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