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RJ45
Function
Color
DB9
DB25
1
CTS
Blue
8
5
2
CD
Orange
1
8
3
RX
Black
2
3
4
SG
Red
5
7
5
SG
Green
5
7
6
TX
Yellow
3
2
7
DTR
Brown
4
20

DSR

6
6
8
RTS
White
7
4