Using an 8-pin plug, the following cable wiring is often sufficient for a terminal, printer, or other DTE device configured for DTR (hardware) flow control. However, some terminals and printers may use a signal other than DTR for flow control. In addition, some terminals and printers may have other cable requirements. Consult your terminal or printer manual for this information. For more universal compatibility, use the RJ-45 10-wire terminal/printer cable or a Digi RJ-45 to DB-25 adapter.
| RJ-45 (Digi End) | DB-25 Male (Peripheral) | |||
|---|---|---|---|---|
| Signal | Pin | Pin | Signal | |
|
TxD |
4 |
connected to |
3 |
RxD |
|
RxD |
5 |
connected to |
2 |
TxD |
|
CTS |
7 |
connected to |
20 |
DTR |
|
SG |
6 |
connected to |
7 |
SG |
|
GND |
3 |
connected (via shield) to |
1 (or shell) |
GND |
|
jumpered |
4+5 |
RTS+CTS |
||
Important: Some terminal or printer manufacturers may use different methods of flow control. Consult your documentation for specific wiring requirements.