RS-232 DB9
Male Connector Pin-outs
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 |
RI |