Product guide

Intel Desktop Board DG31PR Product Guide
46
Connecting to the Front Panel Audio Header
Figure 21, A on page 45 shows the location of the front panel audio header. Table 4
shows the pin assignments for the front panel audio header.
Table 4. Front Panel Intel High Definition 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
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 27.
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.
Connecting to the S/PDIF Connector
Figure 21, B on page 45 shows the location of the S/PDIF connector. Table 5 shows
the pin assignments for the S/PDIF connector.
Table 5. S/PDIF Connector
Pin Description
1 V
CC
2 SPDIF OUT
3 Ground
Connecting to the Chassis Intrusion Header
Figure 21, C on page 45 shows the location of the chassis intrusion header. This
header can be connected to a mechanical switch on the chassis to detect if the chassis
cover is removed.
Table 6 shows the pin assignments for t
he chassis intrusion header.
Table 6. Chassis Intrusion Header
Pin Description
1 Intruder
2 Ground