### DB-9 4-Wire Hardware Handshaking (DTR) Cable

The following four-wire cable is often sufficient for a terminal, printer, or other DTE device configured for DTR (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 a fully-wired DB-9 terminal/printer cable.

##### Terminal/Printer Cable with DTR Handshaking

DB-9 Female (Digi End) |  | DB-9 Male (Peripheral)
--- | --- | ---
Signal | Pin | Pin | Signal
RxD | 2 | connected to | 3 | TxD
TxD | 3 | connected to | 2 | RxD
SG | 5 | connected to | 5 | SG
CTS | 8 | connected to | 4 | DTR
GND | Shell | connected (via shield) to | Shell | GND
| jumpered | 7+8 | RTS+CTS