Prerequisites

Before installing a ring topology network, check the following:

1. EVlink Pro AC charging stations:

   • EVlink Pro AC charging stations are wired for power.

   • The eSetup application version is at least 13.1.3.

   • The firmware version of the EVlink Pro AC charging stations is at least 1.3.8 for all ring charging stations.

     Updating the firmware and entering parameters in eSetup determines whether the charging stations are integrated into a ring topology.

2. Network cabling

   The network of charging stations is daisy chained with a maximum of 20 charging stations per daisy chain. The loop is open at switch level.

3. Managed switches

   The managed switch is compatible with the RSTP protocol.The STP protocol is not supported.

   • The RSTP configuration of the managed switch can be modified.

   • The managed switch authorizes BPDU frames on ports connected to the loop. Anti-loop protection such as Cisco BPDU Guard / BPDU Filter are disabled.

     Configuring the managed switch determines the proper operation of the ring topology.

     

     A maximum of 20 charging stations can be in the ring.