Is the Echo DMX Scene Controller An Active or Passive DMX Unit?

Answer

The Echo DMX Scene Controller is an active DMX unit. That is, it must process incoming DMX to send it out. If the Scene Controller fails or is powered off, any upstream DMX source will not communicate to DMX recipients downstream of the controller.

Additionally, the EDMXC will always have an active DMX signal when powered on, even when an OFF command is sent; therefore, any devices that rely on signal loss to perform a particular function (e.g. ColorSource relays automatically turning off when they are no longer receiving DMX) will not perform those functions if connected to an EDMXC.