Modem Adapter; Console Port Mode 2 Signaling And Pinouts (Sup2 Only - Cisco WS-SUP720-3B - Supervisor Engine 720 User Manual

Appendix B Cable and Connector Specifications

Modem Adapter

Use the RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-25 male DCE adapter (labeled "Modem") to
connect the console port to a modem.
port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 male DCE adapter.
Table B-12
Console Port
Signal
RTS
DTR
TxD
GND
GND
RxD
DSR
CTS
1. Pin 1 is connected internally to Pin 8.

Console Port Mode 2 Signaling and Pinouts (Sup2 Only)

Table B-13
the out position). In this mode, you can connect a terminal to the supervisor engine using a Catalyst 5000
family Supervisor Engine III console cable and adapter (not provided). For instructions, see "Supervisor
Engine 2" in the
Table B-13
Console Port
Pin (Signal Name)
1 (RTS)
2 (DTR)
3 (RxD)
4 (GND)
5 (GND)
6 (TxD)
7 (DSR)
8 (CTS)
1. Pin 1 is connected internally to Pin 8.
OL-10100-11
Console Port Modem Adapter Pinouts
RJ-45-to-RJ-45
Rollover Cable
RJ-45 Pin RJ-45 Pin
1
1 8
2 7
3 6
4 5
5 4
6 3
7 2
1
8 1
lists the pinouts for the Supervisor Engine 2 console port mode switch in mode 2 (switch in
"Connecting a Terminal" section on page
Console Port Pinouts (Supervisor Engine 2, Port Mode Switch Out)
1
1
Cisco 7600 Series Router Supervisor Engine and Route Switch Processor Guide
Console Port Cabling Specifications and Pinouts
Table B-12 lists the pinouts for the asynchronous serial console
RJ-45-to-DB-25
Modem Adapter Modem
DB-25 Pin Signal
4 RTS
20 DTR
3 TxD
7 GND
7 GND
2 RxD
8 DCD
5 CTS
3-9.
Console Device
Input/Output
Output
Output
Input
GND
GND
Output
Input
Input
B-13