The simplest way to connect a modem to a Digi RJ-45 jack is to use a Digi RJ-45 to DB-25 cable adapter. The following table shows how to apply the adapter wiring scheme to custom modem cables.
|
RJ-45 (Digi End) |
DB-25 Male (Modem End) |
|||
|---|---|---|---|---|
| Signal | Pin | Pin | Signal | |
| RI | 1 | connected to | 22 | RI |
| DSR | 2 | connected to | 8 | DSR |
| RTS | 3 | connected to | 4 | RTS |
| GND | 4 | connected (via shield) to | 1 (or shell) | GND |
| TxD | 5 | connected to | 3 | RxD |
| RxD | 6 | connected to | 2 | TxD |
| SG | 7 | connected to | 7 | SG |
| CTS | 8 | connected to | 5 | CTS |
| DTR | 9 | connected to | 20 | DTR |
| DCD | 10 | connected to | 6 | DCD |