The following three-wire cable is often sufficient for a terminal, printer, or other DTE device configured for software flow control.
|
DB-25 Female (Digi End) |
DB-25 Male (Peripheral) |
|||
|---|---|---|---|---|
| Signal | Pin | Pin | Signal | |
| TxD | 2 | connected to | 3 | RxD |
| RxD | 3 | connected to | 2 | TxD |
| SG | 7 | connected to | 7 | SG |
| GND | Shell | connected (via shield) to | Shell | GND |
This cable is a three-wire null modem cable. Transmitted Data on one end of the cable is connected to Received Data at the other end, and vice versa. The male DB-25 end can be plugged directly into most serial terminals and printers without any adapters. The female DB-25 end plugs directly into any Digi DB-25 serial port.