RJ-45 Connector Pin-outs
RS-232 Signal Pin-outs of RJ-45
Pin 1
RTS
Pin 2
DTR
Pin 3
GND
Pin 4
TxD
Pin 5
RxD
Pin 6
DCD
Pin 7
DSR
Pin 8
CTS
RS-232 Signal Pin-outs of DB-9 Male
Pin 1
DCD
Pin 2
RxD
Pin 3
TxD
Pin 4
DTR
Pin 5
GND
Pin 6
DSR
Pin 7
RTS
Pin 8
CTS
Pin 9