RJ-45 8-Pin Plug Hardware Handshaking (Ready/Busy) Cable

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. 

Terminal/Printer Cable with DTR Handshaking
RJ-45 (Digi End)   DB-25 Male (Peripheral)
Signal Pin Pin Signal

TxD

5

connected to

3

RxD

RxD

4

connected to

2

TxD

CTS

8

connected to

20

  DTR

SG

6

connected to

7

SG

 

jumpered

4+5

RTS+CTS