The way I see it, you have 4 options:
1. connect the switch to a network port where DHCP is available, the switch should by default have DHCP enabled to acquire a network address. Then telnet to it.
2. Connect the switch console port to a laptop/PC with a serial port using the rj45-DB9 cable that comes supplied with the switch.
3. Connect the switch console port using the RJ45-DB9 cable that comes supplied with the switch to a DB9-USB converter that you need to buy, and connect that to a USB port on your laptop/PC.
4. Buy a USB console cable and connect that from the switch USB console port to your laptop/PC USB port.