Asus D700-NIB Motherboard DIY Troubleshooting Guide - Page 45

USB Header, Infrared Module Connector - definition

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5. USB header (10-1 pin USB23) If the USB port connectors on the rear panel are inadequate, a USB header is available for two additional USB port connectors. Connect a 2-port USB connector set to the USB header and mount the USB bracket to an open slot in the chassis. USB23 1 5 6 10 P4B-M 1: USB Power 6: USB Power 2: USBP2- 7: USBP3- 3: USBP2+ 8: USBP3+ 4: GND 9: GND ® 5: NC P4B-M USB Header Figure 2-33 USB Header 6. Infrared module connector (two 5-1 pin IR_CON) 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. You must also configure the UART2 Use As parameter in BIOS to set UART2 for use with IR. See section "4.4.2 I/O Device Configuration" for details. 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.. P4B-M IRTX GND IRRX KBPWR SIR KBPWR CIRRX GND CIRTX 1 CIR ® P4B-M Infrared Module Connector Figure 2-34 Infrared Module Connector Standard Infrared (SIR) Front View Back View IRTX +5V GND (NC) IRRX ASUS P4B-M motherboard user guide 2-25

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ASUS P4B-M motherboard user guide
2-25
Figure 2-33
USB Header
5.
USB header (10-1 pin USB23)
If the USB port connectors on the rear panel are inadequate, a USB
header is available for two additional USB port connectors. Connect a
2-port USB connector set to the USB header and mount the USB
bracket to an open slot in the chassis.
P4B-M
P4B-M USB Header
USB23
1
5
6
10
1: USB Power
2: USBP2–
3: USBP2+
4: GND
5: NC
6: USB Power
7: USBP3–
8: USBP3+
9: GND
6.
Infrared module connector (two 5-1 pin IR_CON)
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. You must also configure the
UART2
Use As
parameter in BIOS to set UART2 for use with IR. See section
“4.4.2 I/O Device Configuration” for details.
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..
P4B-M
P4B-M
Infrared Module Connector
SIR
KBPWR
IRRX
IRTX
GND
CIRTX
GND
CIRRX
KBPWR
CIR
Standard Infrared (SIR)
Front View
Back View
+5V
IRTX
IRRX
(NC)
GND
1
Figure 2-34
Infrared Module Connector