The following four-wire cable is often sufficient for an older 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 a fully-wired DB-25 terminal/printer cable.
| 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 |
|
CTS |
5 |
connected to |
20 |
DTR |
|
SG |
7 |
connected to |
7 |
SG |
|
GND |
Shell |
connected (via shield) to |
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.