MESSAGE BOARD: _____________ _________________ The legend shall be capable of displaying three-character lines. _____________ _________________ Each line shall be composed of a minimum of eight (8) interchangeable alpha-numeric character modules. Each character shall be minimum 18" high and composed of multiple pixels. The removal or replacement of display modules shall require no special tools. _____________ _________________ The surface mount LED characters shall have a minimum of 30-degree cone of visibility. Each character in each line is to be readily legible from 1,200 feet under all lighting conditions. _____________ _________________ Weather-tight enclosures shall house each character line in a clear polycarbonate protective cover that allows easy access to the display modules. _____________ _________________ Sign hardware and un-illuminated portions of the sign board face shall be finished with a UV-protected flat black coating. _____________ _________________ LED’s and character pixel modules shall be protected by a clear surface that is easily replaceable in case of damage and is independent of the pixel modules. CONTROLLER: _____________ _________________ The NTCIP compliant controller shall be a LCD touchscreen display with a five-year battery backup. The controller shall be capable of storing 100 programmable messages and contain a library or pre-programmed messages and graphics. _____________ _________________ Controller shall allow operators to manually override the automated messaging in order to display another message at any time. The operator shall be able to cancel this override and initiate the system's automated messaging feature. _____________ _________________ Controller shall provide password coding or key entry and shall include a scheduling program to automatically start and stop messages at predetermined times. It should provide PCMS and battery diagnostics. _____________ _________________ Controller shall be capable of displaying multiple messages sequentially (minimum of 2), have an adjustable sequence rate, and allow message changes during operating periods. _____________ _________________ In the event of a power failure, the controller shall be able to either default to display of a pre-programmable message or blank depending on configuration. _____________ _________________ Any required cooling fans shall be provided to dissipate heat from thermal-sensitive areas. _____________ _________________ The complete unit shall be able to operate in ambient temperatures from -30°F to 135°F. RADAR OPTION: _____________ _____________ Provide sign trailer mounted radar unit as specified for PTS. _____________ _____________ The radar option will host motorist speed on display sign and shall be capable of triggering certain messages at configurable threshold speeds.
