RJ-12 PIN assignment
Pin1
Pin2
Pin3
Pin4
Pin5
Pin6
RS-232
-
RXD
TXD
-
GND
-
RS-485
-
DATA
DATA+
-
GND
-
DB9 Calbe PIN assignment
Pin1
Pin2
Pin3
Pin4
Pin5
Pin6
RS-232
-
RXD
TXD
-
GND
-
RS-485
-
DATA
DATA+
-
GND
-
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