DMX 512 systems MUST utilize what type of connector

• A. Edison
• B. 5-pin XLR
• C. RJ45
• D. USB-C

Answer: (A)

DMX512 data in lighting systems is carried over a five-pin XLR connector. This connector is the standard physical interface for DMX512, providing a robust, locking connection suitable for stage environments and ensuring a consistent pinout for data and ground. The typical DMX wiring uses pin 1 for ground, pin 2 for data-, pin 3 for data+, with pins 4 and 5 available for a second data pair or future use in some implementations.

Edison plugs are for power distribution, not data signaling, so they don’t serve DMX512 data connections. RJ45 is used in some alternative or modern setups for DMX over Ethernet or in proprietary schemes, but it isn’t the standard DMX512 connector. USB-C is a general-purpose data/power connector and is not the DMX512 physical interface either.