Specifications

Table Of Contents
20 Chapter 5 EIA-232: RJ-45 to DB-25
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)
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" on page 18 for a comparison
of various RJ connector types that work with the Digi 10-pin RJ-45 jack.
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