The Cisco Catalyst 3850 Switch (similar to the Cisco Catalyst 3750-X Switch) has two console ports: a USB mini console port in the front and an RJ45 console port in the rear. You can use either port (but not both) for input. However, both ports always display the switch output.
The default console port speed setting is 9600 baud, 8 data bits, no parity, 1 stop bit, and no flow control.
Using the USB Console Port
Figure 1. USB Console Port
![Image](http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps12686/images/deployment_guide_c07-727067-01.jpg)
The USB console port is the default management port and is supported in both install and boot loader modes.
To use the RJ45 port, you must configure precedence for it by using these commands:
conf t
line con 0
media-type rj45 switch 1
Configuring precedence for the RJ45 port enables it for input and disables input on the USB console port. However, switch output is always displayed on both ports.