A
X
4
B
S
P
r
o
/
A
X
A
X
4
B
S
P
r
o
/
A
X
M
o
d
e
m
A
u
d
i
o
C
M
o
d
e
m
A
u
d
i
o
C
This connector is used to connect Mono In/MIC Out cable from internal modem card to onboard sound circuit. The pin 1-2 is
Mono In, and the pin 3-4 is MIC Out. Please note that there is no standard for this kind of connector yet, only some internal
modem cards implement this connector.
MIC OUT
4
B
S
-
V
4
B
S
-
V
o
n
n
e
c
t
o
r
o
n
n
e
c
t
o
r
GND GND
MONO IN
MODEM-CN
52
O
n
l
i
n
e
M
a
n
u
a
l
O
n
l
i
n
e
M
a
n
u
a
l