### RJ-11 Software Handshaking (XON/XOFF) Cable

The following 3-wire cable is often sufficient for a terminal, printer or other DTE device configured for software flow control.

##### Simple Software Handshaking Terminal/Printer Cable (RJ-11)

RJ-11 (Digi End) |  | DB-25 Male (Peripheral)
--- | --- | ---
Signal | Pin | Pin | Signal
TxD | 2 | connected to | 3 | RxD
RxD | 3 | connected to | 2 | TxD
SG | 4 | connected to | 7 | SG
GND | 1 | connected (via shield) to | 1 (or shell) | GND

This cable is a 3-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 RJ-11 plug fits into the center of the RJ-45 jack. The male DB-25 end can be plugged directly into most serial terminals and printers without any adapters.

An RJ-45 8-pin connector uses the same wiring with the center pins only--pins 3, 4, 5, and 6. See RJ Connector Types for a comparison of various RJ connector types that work with the Digi 10-pin RJ-45 jack.