This article shows how to configure the Turbo Ring V2 protocol for a ring topology through the switch’s web interface

Login to the web interface of the switch Default values:
IP: 192.168.127.254 Login: admin Password: no password
Go to the Communication Redundancy section. In the Redundancy Protocol field, specify the Turbo Ring V2 protocol type.
For ring topology, check the box Enable Ring 1
In the Redundant Ports field, enter the port numbers used in the ring.