M
M
X
X
3
3
6
6
L
L
E
E
-
-
U
U
/
/
M
M
X
X
3
3
6
6
L
L
E
E
-
-
U
U
N
N
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
C
C
O
O
M
M
2
2
C
C
o
o
n
n
n
n
e
e
c
c
t
t
o
o
r
r
This motherboard provides two serial ports. One of them are on back panel connector, the other is on the up-middle area of this
motherboard. With proper cable, you can connect it to the back panel of chassis.
Pin 1
1 2
SIN
DTR#
DSR#
CTS#
DCD#
SOUT
GND
RI#
RTS#
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