Specifications

C-3
Cisco 7100 Series VPN Router Installation and Configuration Guide
78-6341-03
Appendix C Cable Specifications
Console and Auxiliary Port Cables and Pinouts
Use the RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-25 female DTE adapter (labeled TERMINAL)
to connect the console port to a terminal. Table C-2 lists the signals and pinouts for the asynchronous
serial console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 female DTE adapter
(labeled TERMINAL).
Auxiliary Port Cables and Pinouts
Use the RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-25 male DCE adapter (labeled MODEM) to
connect the auxiliary port to a modem. Table C-3 lists the signals and pinouts for the asynchronous serial
auxiliary port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 male DCE adapter (labeled
MODEM).
Table C-2 Console Port Signaling and Cabling Using a DB-25 Adapter
Console Port
(DTE)
1
1. You can use the same cabling to connect a console to the auxiliary port.
RJ-45-to-RJ-45 Rollover Cable
RJ-45-to-DB-25
Terminal Adapter Console Device
Signal RJ-45 Pin RJ-45 Pin DB-25 Pin Signal
RTS 1
2
2. Pin 1 is connected internally to pin 8.
85CTS
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
14RTS
Table C-3 Auxiliary Port Signaling and Cabling Using a DB-25 Adapter
AUX Port (DTE)
RJ-45-to-RJ-45
Rollover Cable
RJ-45-to-DB-25
Modem Adapter Modem (DCE)
Signal RJ-45 Pin RJ-45 Pin DB-25 Pin Signal
RTS 1 8 4 RTS
DTR 2 7 20 DTR
TxD 3 6 3 TxD
GND 4 5 7 GND
GND 5 4 7 GND
RxD 6 3 2 RxD
DSR 7 2 8 DCD
CTS 8 1 5 CTS