SMC Networks P4B-E Infrared, UART2 Use Standard, 17.Infrared module connector (5-1pin IR_CON), 18.Power supply thermal connector (2-pinTRPWR)

17.Infrared module connector (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. 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 Ò4.4.2 I/O Device ConfigurationÓfor details.

		Standard Infrared (SIR)
		Front View	Back View
	IRTX	KBPWR
	GND	CIRRX
P4B-E	IRRX
		GND
	KBPWR	CIRTX
		1
	SIR	CIR	IRTX	+5V
			GND	(NC)
				IRRX

P4B-E Infrared Module Connector

Figure 2-51 Infrared Module Connector

18.Power supply thermal connector (2-pin TRPWR)

If your power supply has a thermal monitoring feature, connect its thermal sensor cable to this connector.

P4B-E

TRPWR

Ground

TRPWR

P4B-E Power Supply Thermal Connector

Figure 2-52 Power Supply Thermal Connector

2-36 Chapter 2: Hardware information