Specifications

C-4 Cisco Multiport Router Installation and Configuration Guide
Console and Auxiliary Port Signals and Pinouts
Use the thin, flat, RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-25 female DTE adapter
(labeled “TERMINAL”) to connect the console port to a terminal. Figure C-3 shows how
to connect the console port to a terminal. Table C-2 lists the pinouts for the asynchronous
serial console port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-25 female
DTE adapter (labeled “TERMINAL”).
Figure C-3 Connecting the Console Port to a Terminal
1. You can use the same cabling to connect a console to the auxiliary port.
2. Pin 1 is connected internally to Pin 8.
Table C-2 Console Port Signaling and Cabling Using a DB-25 Adapter
Console
Port (DTE)
1
RJ-45-to-RJ-45
Roll-Over Cable
RJ-45-to-DB-25
Terminal Adapter
Console
Device
Signal RJ-45 Pin RJ-45 Pin DB-25 Pin Signal
RTS 1
2
8 5 CTS
DTR 2 7 6 DSR
TxD 3 6 3 RxD
GND 4 5 7 GND
GND 5 4 7 GND
RxD 6 3 2 TxD
DSR 7 2 20 DTR
CTS 8
1
14 RTS
Terminal
RJ-45-to-RJ-45
roll-over cable
RJ-45-to-DB-25 adapter
(labeled “TERMINAL”)
Router
H7227