Console Port Mode Switch - Cisco Catalyst 2810 Series Manual

Cisco - Connecting a Terminal to the Console Port on Catalyst Switches

Console Port Mode Switch

The console port mode switch allows you to connect either a terminal (DTE) or a modem (DCE)
depending on the mode that is selected and the cable that you are using.
Note: The cable and adapters shipped with the Supervisor Module II G and Supervisor Module III G are
the same ones used on the Cisco 2500 series routers (and other Cisco products).
Use the console port mode switch as follows:
Mode 1: Press to the in position. Use this mode to connect a terminal to the port using the console
cable and DTE adapter (labeled "Terminal") that shipped with the Supervisor Engine. You may
also use this mode to connect a modem to the port using the console cable and the DCE adapter
(labeled "Modem") that shipped with the switch.
Mode 2: Depress to the out position. Use this mode to connect a terminal to the port using the
Supervisor Engine III console cable (not provided).
Figure: EIA/TIA-232 RJ-45 Adapter Cable Connector
Table F-1: Console Port Signaling and Cabling Using a DB9 Adapter
Switch RJ45-RJ45
Console Rollover Cable
(DTE)
RJ45
Signal
Pin
RTS 1¹
DTR 2
TxD 3
GND 4
GND 5
RxD 6
DSR 7
CTS 8¹
¹Pin 1 is connected internally to Pin 8.
Table F-2: Console Port Signaling and Cabling Using a DB25 Adapter
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RJ45-to-DB9
Adapter
RJ45
DB9 Pin
Pin
8 8
7 6
6 2
5 5
4 5
3 3
2 4
1 7
Terminal
(DTE)
Signal
CTS
DSR
RxD
GND
GND
TxD
DTR
RTS