9 way female 'D' lype Solder side
Serial COM port loopback test pług
D9 |
D25 | |
3 |
2 |
TD —i |
2 |
3 |
RD |
5 |
7 |
SG |
4 |
20 |
DTR —i |
6 |
6 |
DSR |
1 |
3 |
CD J |
7 |
4 |
RTS —i |
3 |
5 |
CTS J |
9 way and 25 way hookup chart