User:Deelkar/Sandbox
Null modem cable pin mapping
[edit]This is the most common pin mapping, one common variant is to also connect pins 1 and 6
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| |||||||||||||||||||||||||||||||||||||||||||||||||||
| 9 pin to 9 pin | 9 pin to 9 pin | |||
|---|---|---|---|---|
| CD | 1 | 1 | 1 | 8 |
| RD | 2 | 3 | 2 | 2 |
| TD | 3 | 2 | 3 | 3 |
| DTR | 4 | 6 | 4 | 6 |
| Ground | 5 | 5 | 5 | 7 |
| DSR | 6 | 4 | 6 | 20 |
| RTS | 7 | 8 | 7 | 5 |
| CTS | 8 | 7 | 8 | 4 |
| - | 9 | 9 | 9 | 22 |