Intel DX48BT2 manual Front Panel Audio Header, HD Audio Link Header, Consumer IR CIR Headers

Installing and Replacing Desktop Board Components

Front Panel Audio Header

Figure 27, A shows the location of the front panel audio header. Table 4 shows the pin assignments and signal names for the front panel audio header.

Table 4. Front Panel Audio Header Signal Names

Pin	Signal Name	Pin	Signal Name
1	PORT 1L	2	GND
3	PORT 1R	4	PRESENCE#
5	PORT 2R	6	SENSE1_RETURN
7	SENSE_SEND	8	KEY (no pin)
9	PORT 2L	10	SENSE2_RETURN

HD Audio Link Header

Figure 27, B shows the location of the HD Audio Link header. Table 5 shows the pin assignments and signal names for the HD Audio Link header.

Table 5. HD Audio Link Header Signal Names

Pin	Signal Name
1	BCLK
3	RST#
5	SYNC
7	SDO
9	SDI0
11	SDI1
13	No Connection
15	No Connection

Pin	Signal Name
2	Ground
4	3.3 Vcc
6	Ground
8	3.3 Vcc
10	+12 V
12	Key

143.3 V STBY

16Ground

Consumer IR (CIR) Headers

The Desktop Board has two CIR headers: the input or receiver header (Figure 27, D) and the output or emitter header (Figure 27, C). The receiver header consists of a filtered translated infrared input compliant with Microsoft CIR specifications and a “learning” infrared input. The learning input is a high-pass input which the computer can use to “learn” to speak the infrared communication language of other user remotes. The emitter header consists of two output ports which the computer can use to emulate “learned” infrared commands in order to control external electronic hardware.

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