Blue Owl

Referee Hub


The Referee Hub manages all communication between the Referee Control Boxes, the Down Signal, and owlcms. This device is required to use a Referee Control Box or the Down Signal.

The Referee Control Boxes can be used with or without a Down Signal attached. In addition, the Referee Hub supports a single referee mode in which only one Referee Control Box is connected to the Center Referee port.

What's Included?

  • Referee Hub
  • 15' USB Cable

Options & Accessories

The Referee Hub requires a USB connection to a computer running the Blue Owl software.

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