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.
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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).
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Figure: EIA/TIA-232 RJ-45 Adapter Cable Connector
Table F-1: Console Port Signaling and Cabling Using a DB9 Adapter
Switch
Console
(DTE)
RJ45-RJ45
Rollover Cable
RJ45-to-DB9
Adapter
Terminal
(DTE)
Signal
RJ45
Pin
RJ45
Pin
DB9 Pin Signal
RTS 1¹ 8 8 CTS
DTR 2 7 6 DSR
TxD 3 6 2 RxD
GND 4 5 5 GND
GND 5 4 5 GND
RxD 6 3 3 TxD
DSR 7 2 4 DTR
CTS 8¹ 1 7 RTS
¹Pin 1 is connected internally to Pin 8.
Table F-2: Console Port Signaling and Cabling Using a DB25 Adapter