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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.
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Expansion connectors
8-pin male plug (mates to A-H4D)
8-pin female socket (accepts additional A-H4Dx)
Keypad connectors
(4) 110 punch-down blocks
Power connector
2.5 mm jack, tip positive
Power requirement
24 VDC 2.5 A (use Russound A-PS power supply)
Dimensions
1.65" W x 4" H x 1.5" D
(4.2 x 10.3 x 3.7 cm)
Weight
6 oz (170 g)
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