Catalyst 3650 Switch Hardware Installation Guide ...
If you did not order a console cable, you should provide an RJ-45-to-DB-9 adapter cable to connect the switch console port to a PC console port. You should provide an RF-45-to-DB-25 DTE adapter if you want to connect the switch console port to a terminal. You can order a kit with an adapter (part number ACS-DSBUASYN=).