Intel D425KT Product Guide - Page 31

Connecting to the Front Panel Audio Header, Connecting to the Serial Port Header

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Installing and Replacing Desktop Board Components Connecting to the Front Panel Audio Header Figure 9, A shows the location of the front panel audio header. The front panel audio header can be used for both Intel HD Audio and AC '97 Audio. Table 5 shows the pin assignments for the Intel HD Audio and Table 6 shows the pin assignments for AC '97 Audio. Table 5. Front Panel Audio Header for Intel HD Audio Pin Signal Name 1 [Port 1] Left channel 3 [Port 1] Right channel Pin Signal Name 2 Ground 4 PRESENCE# (Dongle present) 5 [Port 2] Right channel 6 [Port 1] SENSE_RETURN 7 SENSE_SEND (Jack detection) 8 9 [Port 2] Left channel 10 Key (no pin) [Port 2] SENSE_RETURN Table 6. Front Panel Audio Header for AC '97 Audio Pin Signal Name 1 MIC 3 MIC_BIAS 5 FP_OUT_R 7 AUD_5V 9 FP_OUT_L Pin Signal Name 2 AUD_GND 4 AUD_GND 6 FP_RETURN_R 8 KEY (no pin) 10 FP_RETURN_L Connecting to the Serial Port Header Before connecting to the serial port header, observe the precautions in "Before You Begin" on page 23. See Figure 9, B on page 30 for the location of the serial port header. Table 7 shows the pin assignments for the serial port header. Table 7. Serial Port Header (COM 1) Pin Signal Name Pin 1 DCD (Data Carrier Detect) 2 3 TXD# (Transmit Data) 4 5 Ground 6 7 RTS (Request To Send) 8 9 RI (Ring Indicator) 10 Signal Name RXD# (Receive Data) DTR (Data Terminal Ready) DSR (Data Set Ready) CTS (Clear To Send) Key (no pin) 31

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Installing and Replacing Desktop Board Components
31
Connecting to the Front Panel Audio Header
Figure 9, A shows the location of the front panel audio header.
The front panel audio
header can be used for both Intel HD Audio and AC ‘97 Audio.
Table 5 shows the pin assignments for the Intel HD Audio and Table 6 shows the pin
assignments for AC ‘97 Audio.
Table 5. Front Panel Audio Header for Intel HD Audio
Pin
Signal Name
Pin
Signal Name
1
[Port 1] Left channel
2
Ground
3
[Port 1] Right channel
4
PRESENCE# (Dongle present)
5
[Port 2] Right channel
6
[Port 1] SENSE_RETURN
7
SENSE_SEND (Jack detection)
8
Key (no pin)
9
[Port 2] Left channel
10
[Port 2] SENSE_RETURN
Table 6. Front Panel Audio Header for AC ‘97 Audio
Pin
Signal Name
Pin
Signal Name
1
MIC
2
AUD_GND
3
MIC_BIAS
4
AUD_GND
5
FP_OUT_R
6
FP_RETURN_R
7
AUD_5V
8
KEY (no pin)
9
FP_OUT_L
10
FP_RETURN_L
Connecting to the Serial Port Header
Before connecting to the serial port header, observe the precautions in "Before You
Begin" on page 23.
See Figure 9, B on page 30 for the location of the serial port
header.
Table 7 shows the pin assignments for the serial port header.
Table 7. Serial Port Header (COM 1)
Pin
Signal Name
Pin
Signal Name
1
DCD (Data Carrier Detect)
2
RXD# (Receive Data)
3
TXD# (Transmit Data)
4
DTR (Data Terminal Ready)
5
Ground
6
DSR (Data Set Ready)
7
RTS (Request To Send)
8
CTS (Clear To Send)
9
RI (Ring Indicator)
10
Key (no pin)