A DMX512 universe contains how many channels?

• A. 512
• B. 1024
• C. 256
• D. 128

Answer: (A)

DMX512 organizes control data into fixed-sized groups called universes, and each universe has a set number of channel values it can carry. Each channel holds an 8‑bit value that controls one parameter on a lighting fixture (like brightness, color, or position). The standard defines 512 channel values per universe, so one DMX signal can carry up to 512 separate control values for fixtures. If you need more parameters than that, you add another universe to extend the total control capacity. That’s why the correct concept is that a DMX512 universe contains 512 channels—the other numbers would require additional universes or are below the maximum capacity of a single universe.