DFI 790fx-m2r, User Manual

Page: 22 / 121

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22
English
IrDA, CIR and Serial (COM) Connectors
IrDA and CIR Connectors
These connectors are used to connect an IrDA module and/or CIR
module.
Note:
The sequence of the pin functions on some IrDA/CIR cable
may be reversed from the pin function defined on the system
board. Make sure to connect the cable connector to the IrDA/
CIR connector according to their pin functions.
You may need to install the proper drivers in your operating system
to use the IrDA/CIR function. Refer to your operating system’s
manual or documentation for more information.
Serial (COM) Connector
The serial (COM) connector is used to connect modems, serial
printers, remote display terminals, or other serial devices. Your COM
por t 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 connect the serial port cable to this connector. The colored
edge of the cable should be aligned with pin 1 of this connector.
W
IrDA
CIR
5 1
VCC
N. C.
IRRX
Ground
IRTX
5 1
5VSB
N. C.
CIRRX
Ground
CIRTX
X
1
9
2
CD
TD
RD DTR
GND
RTS
DSR
CTS
RI
COM