Digi 34 Spécifications Page 19

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Chapter 5 EIA-232: RJ-45 to DB-25 21
RJ-45 8-pin plug hardware handshaking (DTR) cable
When an 8-pin plug is used for connections for connecting a terminal,
printer, or other DTE device configured for DTR (hardware) flow control,
the following cable wiring is often sufficient. 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 the RJ-45 10-wire terminal/printer cable or a Digi RJ-45
to DB-25 adapter.
Terminal/Printer Cable with DTR Handshaking
Note: Some terminal or printer manufacturers may use different methods of flow
control. Consult your documentation for specific wiring requirements.
RJ-45
(Digi end)
DB-25 male (peripheral)
Signal Pin Pin Signal
TxD 4 connected to 3 RxD
RxD 5 connected to 2 TxD
CTS 7 connected to 20 DTR
SG 6 connected to 7 SG
GND 3 connected (via shield) to 1 (or shell) GND
jumpered 4+5 RTS+CTS
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