Specifications

Table Of Contents
24 Chapter 5 EIA-232: RJ-45 to DB-25
RJ-45 fully-wired terminal/printer cable
Using a 10-pin RJ-45 plug, the following cable wiring supports most serial
terminals or printers with either software or hardware handshaking. This
cable is valid with any Digi RJ-45 serial port.
Most terminals and printers use Request to Send/Clear to Send (RTS/CTS)
for hardware handshaking. The cable shown supports this method.
Terminal/printer cable for software (XON/XOFF) or hardware (RTS/CTS)
handshaking
Note: Some terminal or printer manufacturers may use different methods of flow
control. Consult your documentation for specific wiring requirements.
RJ-45 10-pin
(Digi end)
-
DB-25 male
(terminal/printer)
Signal Pin Pin Signal
DSR+DCD*
* ALTPIN must be turned
off for DCD to be on pin
10
2+10 connected to 20 DTR
RTS 3 connected to 5 CTS
GND 4 connected (via shield) to Shell GND
TxD 5 connected to 3 RxD
RxD 6 connected to 2 TxD
SG 7 connected to 7 SG
CTS 8 connected to 4 RTS
DTR 9 connected to 6+8
DSR+D
CD