Using an 8-pin plug, the following cable wiring is often sufficient for a terminal, printer, or other DTE device configured for RTS/CTS (hardware) flow control. However, 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 | |
|
DSR |
1 |
connected to |
20 |
DTR |
|
RTS |
2 |
connected to |
5 |
CTS |
|
GND |
3 |
connected (via shield) to |
1 (or shell) |
GND |
|
TxD |
4 |
connected to |
3 |
RxD |
|
RxD |
5 |
connected to |
2 |
TxD |
|
SG |
6 |
connected to |
7 |
SG |
|
CTS |
7 |
connected to |
4 |
RTS |
|
DTR |
8 |
connected to |
8 |
DCD |
Important: Some terminal or printer manufacturers may use different methods of flow control. Consult your documentation for specific wiring requirements.