Signal
RTS
DTR
TXD
G/SG
G/FG
RXD
DSR
CTS
DCD
RI |
RJ45
1
2
3
4
5
6
7
8 |
DB9
7
4
3
5
2
6
8
1
9 | "terminal"
DB9
7
4
3
5
2
6
8
1 |
DB25
4
20
2
7
1
3
6
5
8
22 | "terminal"
DB25
4
20
2
7
7
3
6
5
CAB-500DTF
29-0810-01 | "modem"
DB25
5
8
3
7
2
20
4 | "TM-T88III"
DB25
5
6
3
7
2
20
4 | DB25
null modem
5
6,8
3
7
1
2
20
4
20 | "rollover"
RJ45
8
7
6
5
4
3
2
1 |