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Chapter 3: Motherboard Connections
3.3 Headers and Connectors
Front Panel Audio Header
A 10-pin front panel audio header located on the motherboard allows you to use the onboard
sound for audio playback. Connect an audio cable to the this header to use this feature. Refer
to the table below for pin definitions.
COM Headers
The JCOM1 header provides two RS232/422/485 COM connections. Refer to the table below
for pin definitions. Refer to pins 1 -10 for COM1 and pins 11 - 20 for COM2.
Audio Header
Pin Definition
Pin#
Definition
Pin#
Definition
1
MIC_Left
2
AUDIO_GND
3
MIC_Right
4
AUDIO_Detect
5
LINE2_Right
6
MIC2_JD
7
Front AUDIO_JD
8
NC
9
LINE2_Left
10
LINE2_JD
Serial COM Ports
Pin Definition
Pin#
Definition
Pin#
Definition
1
DCD
2
DSR
3
RXD
4
RTS
5
TXD
6
CTS
7
DTR
8
RI_N
9
GND
10
N/A
11
DCD
12
DSR
13
RXD
14
RTS
15
TXD
16
CTS
17
DTR
18
RI_N
19
GND
20
N/A