Description

The A-H4Dx Expansion Hub increases a basic in-wall A-BUS system from four to eight rooms. It supports up to four A-BUS Amplified Keypads or Amplified Volume Controls. Installing in the same wall box as the A-H4D hub, the A-H4Dx occupies an extra gang in the wall plate. Additional Expansion Hubs can be used for more zones, up to the practical limit imposed by the wall box. Each A-H4Dx requires its own A-PS power supply.