Intel DG33FB Connecting to the Ieee 1394a Header, Ieee 1394a Signal Header Names, Pin Signal Name

Intel Desktop Board DG33FB Product Guide

Connecting to the IEEE 1394a Header

See Figure 23, A for the location of the IEEE 1394a header. Table 4 shows the pin assignments for the header.

Table 4. IEEE 1394a Signal Header Names

Pin	Signal Name
1	TPA1+
3	Ground
5	TPA2+
7	+12 V
9	Key (no pin)

Pin	Signal Name
2	TPA1-
4	Ground
6	TPA2-

8+12 V

10Ground

Installing a Front Panel Audio Solution for Intel® High

Definition Audio

Figure 23, B shows the location of the front panel audio header. Table 5 shows the pin assignments for the front panel audio header.

Table 5. Front Panel Audio Header Signal Names for Intel High Definition Audio

Pin	Signal Name
1	PORT 1L
3	PORT 1R
5	PORT 2R
7	SENSE_SEND
9	PORT 2L

Pin	Signal Name
2	GND
4	PRESENCE#

6SENSE1_RETURN

8KEY (no pin)

10SENSE2_RETURN

To install the cable that connects the front panel audio solution to the front panel audio header, follow these steps:

1.Observe the precautions in "Before You Begin" on page 25.

2.Turn off all peripheral devices connected to the computer. Turn off the computer and disconnect the AC power cord.

3.Remove the cover.

4.Install a correctly keyed and shielded front panel audio cable.

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