PIN
PIN N ame
PIN
PIN Name
1
DCD1#
11
DCD2#
2
DSR1#
12
DSR2#
3
RXD1
13
RXD2
4
RTS1 #
14
RTS2#
5
TXD1
15
TXD2
6
CTS1#
16
CTS2#
7
DTR1#
17
DTR2#
8
RI1#
18
RI2 #
9
GND
19
GND
10
GND
20
GND
1 3. SMBus (or I²C, by request)
[refer to CN 12]
PIN
PIN N ame
1
GND
2
SMB_DA T
3
SMB_CLK
4
＋5V