On the VIM1-SummitStack512 module, EMI-protective covers are installed over the port connectors.
Before connecting the stacking cables, remove the connector covers from the ports that will be used.
To remove a connector cover:
Note
Store the connector covers for later re-use if the switch will be operated without connecting these ports.
Caution
To ensure satisfactory protection from EMI, leave the covers on all ports that are not connected to another VIM1-SummitStack512 module.