32
D
D
X
X
P
P
S
S
/
/
D
D
X
X
P
P
S
S
P
P
l
l
u
u
s
s
/
/
D
D
X
X
P
P
S
S
-
-
U
U
/
/
D
D
X
X
P
P
S
S
P
P
l
l
u
u
s
s
-
-
U
U
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
n
n
n
n
e
e
c
c
t
t
i
i
n
n
g
g
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 comes with a COM1 connector on the back panel. However, we provide an extra COM2 connector for your
convenience. Once you need to connect a device via COM2, just connect a suitable cable on it.
COM2
Connector
SIN
DTR#
DSR#
CTS#
NC
1 2
DCD#
SOUT
GND
RI#
RTS#
