Specifications include, but are not limited to: Dynamic Message Sign Daktronics Vanguard VF-2420-64x144-20-RGB or equal and must at a minimum meet the following specifications, High-intensity Light Emitting Diodes (LED). Front access. National Electrical Manufacturers Association (NEMA) 3R: NEMA Aluminum mask over polycarbonate face panel. Pressurized, forced air ventilation system. Full LED color that is graphic available (32,000 distinct colors using red, green and blue LEDs). Minimum refresh rate of 200 Hz. 120/240 VAC, single-phase power (3-wires plus ground). National Transportation Communication for Intelligent Transportation System Protocol (NTCIP) 1203 v02 NTCIP. Communicate via cellular, fiber optic, direct Ethernet, and radio Ethernet.
