Intel BOXDH67CLB3 Product Guide - Page 45

Front Panel Audio Header, Chassis Intrusion Header

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Installing and Replacing Desktop Board Components Front Panel Audio Header The front panel audio header shown in Figure 20, A supports both Intel High Definition (HD) Audio and AC '97 Audio. Table 5 shows the pin assignments and signal names for HD Audio and Table 6 shows the pin assignments and signal names for AC '97 Audio. Table 5. Front Panel Audio Signal Names for Intel HD Audio Pin Signal Name 1 PORT 1L (Microphone) 3 PORT 1R (Microphone) Pin Signal Name 2 GND 4 PRESENCE# 5 PORT 2R (Headphone) 6 SENSE1_RETURN 7 SENSE_SEND 9 PORT 2L (Headphone) 8 KEY (no pin) 10 SENSE2_RETURN Table 6. Front Panel Audio Header Signal Names for AC '97 Audio Pin Signal Name 1 MIC 3 MIC_BIAS 5 FP_OUT_R 7 No connect 9 FP_OUT_L Pin Signal Name 2 AUD_GND 4 PRESENCE# 6 AUD_GND 8 KEY (no pin) 10 AUD_GND Chassis Intrusion Header Figure 20, B 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. This switch should be in the open position when the chassis cover is installed and closed when the cover is removed. Table 7 shows the pin assignments and signal names for the chassis intrusion header. Table 7. Chassis Intrusion Header Signal Names Pin Description 1 Ground 2 Intruder# 45

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Installing and Replacing Desktop Board Components
45
Front Panel Audio Header
The front panel audio header shown in Figure 20, A supports both Intel High Definition
(HD) Audio and AC ’97 Audio.
Table 5 shows the pin assignments and signal names for HD Audio and Table 6 shows
the pin assignments and signal names for AC ’97 Audio.
Table 5. Front Panel Audio Signal Names for Intel HD Audio
Pin
Signal Name
Pin
Signal Name
1
PORT 1L (Microphone)
2
GND
3
PORT 1R (Microphone)
4
PRESENCE#
5
PORT 2R (Headphone)
6
SENSE1_RETURN
7
SENSE_SEND
8
KEY (no pin)
9
PORT 2L (Headphone)
10
SENSE2_RETURN
Table 6.
Front Panel Audio Header Signal Names for AC ’97 Audio
Pin
Signal Name
Pin
Signal Name
1
MIC
2
AUD_GND
3
MIC_BIAS
4
PRESENCE#
5
FP_OUT_R
6
AUD_GND
7
No connect
8
KEY (no pin)
9
FP_OUT_L
10
AUD_GND
Chassis Intrusion Header
Figure 20, B 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.
This switch should be in the open position when the chassis cover is
installed and closed when the cover is removed.
Table 7 shows the pin assignments and signal names for the chassis intrusion header.
Table 7. Chassis Intrusion Header Signal Names
Pin
Description
1
Ground
2
Intruder#