Intel DX79SI Product Guide for Intel Desktop Board DX79SI - Page 50

Front Panel Audio Header, S/PDIF Header, Chassis Intrusion Header

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Intel Desktop Board DX79SI Product Guide Front Panel Audio Header Figure 22, A shows the location of the front panel audio header. Table 6 shows the pin assignments and signal names for the front panel audio header. Table 6. Front Panel Audio Header Signal Names 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# 6 SENSE1_RETURN 8 KEY (no pin) 10 SENSE2_RETURN S/PDIF Header Figure 22, B shows the location of the S/PDIF header. Table 7 shows the pin assignments and signal names for the S/PDIF connector. Table 7. S/PDIF Header Signal Names Pin Description 1 Vcc 2 S/PDIF Out 3 Ground Chassis Intrusion Header Figure 22, C 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 8 shows the pin assignments and signal names for the chassis intrusion header. Table 8. Chassis Intrusion Header Signal Names Pin Description 1 Intruder 2 Ground 50

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Intel Desktop Board DX79SI Product Guide
50
Front Panel Audio Header
Figure 22, A shows the location of the front panel audio header.
Table 6 shows the pin
assignments and signal names for the front panel audio header.
Table 6. 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
S/PDIF Header
Figure 22, B shows the location of the S/PDIF header.
Table 7 shows the pin
assignments and signal names for the S/PDIF connector.
Table 7. S/PDIF Header Signal Names
Pin
Description
1
Vcc
2
S/PDIF Out
3
Ground
Chassis Intrusion Header
Figure 22, C 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 8 shows the pin assignments and signal names for the chassis intrusion header.
Table 8. Chassis Intrusion Header Signal Names
Pin
Description
1
Intruder
2
Ground