DAKTRONICS, INC. 1 - 2006 - Laserfiche WebLink

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INFORMATIONAL MAROUEE 11. Marquee LED Message Display Bidder shall provide one marquee that meets the following requirements: a) Construction (1) Display shall operate from one ofthe following power sources: 120/240 V AC, 50/60 Hz single-phase, including neutral and earth ground (2) The display housing shall be constructed to have a neat, professional appearance (3) The housing shall protect internal components from the outdoor environment such as: rain, ice, snow, etc. (4) Display shall operate in a minimum ambient temperature range of -40 to+ 1200 F (-40 to +500 C) and to a 100% humidity (5) Internal display component hardware (nuts, bolts, screws, standoffs, rivets, fasteners, etc.) shall be fabricated from stainless steel, aluminum, nylon, or other durable corrosion-resistant materials suitable for the signage application (6) The LED display shall be UL and ULC listed, and FCC Class A compliant (7) Housing Frame - To provide structural integrity of the display housing and long life ofthe entire display, the housing frame shall be constructed of aluminum. To meet the anti-corrosive, degradation, and oxidation requirements, the display housing aluminum sheet quality shall be no less than the properties of alloy 5052-H32 (8) Exterior Finish - The LED display cabinet shall be painted with automotive-grade acrylic urethane paint (9) Front Face Construction - To meet the display readability requirements the front face must be constructed in such a manner that it provides high contrast, low sunlight reflection, and durability in all weather and site conditions (10) Surface materials in the LED active area such as metal, plastic, or other face materials must be designed for low sunlight reflectivity (11) Minimum features of front face shall include louvers for contrast enhancements, provide UV resistance to minimize discoloring, provide water shedding ability, and withstand all general weather conditions (12) The display housing shall provide safe and convenient front service access for all modular assemblies, components, wiring, and other materials located within the housing. All internal components shall be removable and replaceable by a single technician with basic hand tools. Displays shall be designed with service features that minimize potential bodily harm (13) Service access shall be easily obtained by removing individual LED modules b) Display Components (1) Electrical display components shall be 100% solid-state (2) The presence of ambient radio signals and magnetic or electromagnetic interference, including those from power lines, transformers, and motors, shall not impair performance of the display system. The display system shall not radiate electromagnetic signals that adversely affect any other electronic device 16