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IB70 Motherboard User Manual /
Engineering Spec.
2.5.7
Audio Connector (AUDIO1)
(Line in、Front out、Mic in)
Pin
Number
A2
A3
A1
A4
2.5.8
Signal
Name
SW_C
AUGND
LINE1_L
LINE1_R
Pin
Signal Name
Number
B2
B3
B1
B4
LINE2_JD
AUGND
AZ_FOUT_L
AZ_FOUT_R
Pin
Signal
Number
C2
C3
C1
C4
Name
SW_B
AUGND
MIC1_L
MIC1_R
D-Sub COM (Upper)+VGA (Lower) Connector
COM1
Pin Number
Signal Name
C1
DCD4/485TXRXC2
SRD4/485TXRX+
C3
STD4/422RX+
C4
DTR4/422RXC5
GND
C6
NDSR1
C7
NRTS1
C8
NCTS1
C9
NRI1
VGA
Pin
Signal
Pin
Signal
Pin
Number
Name
Number
Name
Number
V1
R_FILTER
V6
GND
V11
NC
V2
G_FILTER
V7
GND
V12
DAC_SDAT0
V3
B_FILTER
V8
GND
V13
3VHSYNC0
V4
NC
V9
VGA_5V
V14
3VVSYNC0
V5
GND
V10
GND
V15
DAC_SCL0
2.5.9
Dual COM Port Connector
COM3
Pin Number
A5
A9
A4
A8
A3
A7
A2
18
Signal Name
GND
NRI2
NDTR2
NCTS2
NTXD2
NRTS2
NRXD2
Signal Name