IMB523 / 524 / 525 LGA1151 ATX Motherboard
18
Board and Pin Assignments
2.5.8
Front Audio Header (CN11)
This is a front audio header (5x2-pin p=2.00mm) for convenient connection and control
of audio devices.
2.5.9
COM Headers (COM2 ~ COM6)
The motherboard comes with 5x2-pin p=2.54mm headers for COM2~COM6 serial port
interfaces.
COM2~COM6:
COM2 ~ COM6
2.5.10 External Sensor Header (CN15)
The external sensor header is an 1x2-pin p=2.54mm header. The function of CN15 is to
connect an external sensor.
Note
JP7 should be 1-2 closed for the external sensor on CN15.
Pin Signal
Pin
Signal
1
MIC_IN
2
GND
3
LINE_IN_L
4
GND
5
LINE_IN_R
6
GND
7
AUD_OUT_L
8
GND
9
AUD_OUT_R
10
GND
Pin Signal
Pin Signal
1
DCD#
2
DSR#
3
RXD#
4
RTS#
5
TXD#
6
CTS#
7
DTR#
8
RI#
9
GND
10
N/C
Pin Signal
1
Sys_Temp
2
GND
9
1
10
2
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