Asus P4B-FX - Manual (Page 43)

ASUS P4B-FX motherboard user guide 2-23
Figure 2-29 USB Header
5. USB header (10-1 pin USB2)
If the USB ports on the rear panel are inadequate, a USB header is
available for two additional USB ports. Connect a 2-port USB connector
set to the USB header and mount the USB bracket to an open slot in the
chassis.
6. Infrared module connector (5-1 pin IR_CN)
This connector supports an optional wireless transmitting and receiving
infrared module. This module mounts to a small opening on system
chassis that support this feature. Use the five pins as shown in Back
View and connect a ribbon cable from the module to the motherboard
SIR connector according to the pin definitions.
If you installed an infrared module, enable the UART2 Use Standard
Infrared parameter in BIOS to set UART2 for use with IR. See section
“4.4.2 I/O Device Configuration” for details.
Figure 2-30 Infrared Module Connector
P4B-FX
P4B-FX USB Header
USB Power USBP2
–
USBP2+ GND NC
USB Power
USBP3
–
USBP3+
GND
1 5
6 10
USB2
If you enable the onboard infrared feature for use with an infrared
module, the COM2 port does not work.
P4B-FX
P4B-FX Infrared Module Connector
Back View
+5V IRTX
IRRX
(NC) GND
Front View
IR_CN
+5V
IRRX IR
TX
GND
1