S7-SoftPLC:Zero modem cable
From IBHsoftec Wiki English
| Sub.-D case | Sub.-D case | |||
| Connector | Connector | |||
| 9 Pin | 25 Pin | 9 Pin | 25 Pin | |
| 1 | --- | ----------no connection---------- | 1 | --- |
| 2 | 3 | ----------------------------------------- | 3 | 2 |
| 3 | 2 | ----------------------------------------- | 2 | 3 |
| 4 | 20 | ----------------------------------------- | 6 | 6 |
| 5 | 7 | ----------------------------------------- | 5 | 7 |
| 6 | 6 | ----------------------------------------- | 4 | 20 |
| 7 | 4 | ----------------------------------------- | 8 | 5 |
| 8 | 5 | ----------------------------------------- | 7 | 4 |
| 9 | --- | ----------no connection---------- | 9 | --- |
| housing | housing | ----------------shield---------------- | housing | housing |
