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      How to connect a 2 Door Expansion Card to a 4 Door Base Controller

      Use this article to connect a 2 Door Expansion Card to a 4 Door Base Controller.

       

      The following video shows you how to connect a 2 Door Expansion Card (1104/926) to a 4 Door Base Controller (1104/921) using the pin terminals on the top of the controller.

       

      Note:

      • The Base Module should always be powered down before connecting or disconnecting the Expansion Card

       

       

      You should be using the two screws provided to connect the expansion card securely to the base module (not just the pin terminal connections).