LED Enhanced Signs Specifications

For 24”, 30”, 36” and 48” Solar LED Enhanced Signs

All LED Enhanced Signs shall conform to 2009 Federal Highway Administration’s MUTCD section 2A.07 on retro reflectivity and illumination. The main components of an LED Enhanced sign include the Sign, the sign enhancement LEDs, Flash Control Circuit, Battery Pack, Solar Panel and optional wireless transceiver and activation device

  1. Sign
  2. Shall utilize aluminum with a minimum of .080” thickness for the sign blank
  3. Shall have a sign face that consists of 3MTM Diamond GradeTMDG3 reflective sheeting applied to the sign blank with a 3MTM 1160 Premium Protective Overlay film to provide an additional layer of graffiti protection
  4. Shall have two holes for mounting to a post or pole. Optional vandal-resistant fasteners to mount the sign assembly shall be made available
  5. Shall have a UV-resistant label applied to the back of each sign assembly that shall include specific information such as the manufacturer, manufacturer phone number, model number, serial number, date of manufacture and any applicable regulatory compliance information
  1. Sign Enhancement LEDs
  2. Each sign assembly shall consist of 8 high powered 1 watt LEDs that provide a maximum daylight intensity of up to 75,000 mcd (millicandelas) per LED with a viewing angle of 15º
  3. Each LED shall be sealed in 7/8” diameter, heat dissipating plastic enclosure to provide resistance to weather and vibration
  4. All LED enclosures shall be mounted in a 1” hole and ultrasonically welded to the sign assembly to provide maximum strength and rigidity
  5. All LEDs shall be wired in strings to activate simultaneously as per MUTCD standards
  6. Wiring between LEDs shall be encapsulated inside aluminum channels secured to the back of each sign assembly to provide weather resistance and protection
  7. Shall have the LEDs wired in parallel electrically so that remaining LEDs continue to flash in the event of the failure of any individual LED
  1. Flash Control Circuit
  2. Shall have multiple programmable function options:
  3. Run from Dusk to Dawn
  4. Run Daytime only
  5. Run 24 hours per day, 7 days per week
  6. Run for a programmable time period when activated via switch, button contact closure or when triggered from an external sensor such as a wireless transmitter, radar, presence detector, wireless walk through bollard or loop detector with a compatible sensor output
  7. Shall have the ability to flash two independent outputs at a rate of 50 to 60 flashes per minute with a100 – 500 millisecond duration on-time. Each output shall reach the full output current as programmed for the duration of the pulse
  8. Shall be individually programmable for day and night time operation. The day and night time operation will be determined by solar panel charge input and will automatically adjust to match ambient lighting conditions
  9. Shall provide 6 levels of brightness control as determined by ambient lighting conditions
  10. Will manage the battery charge, LED brightness leveland duty cycle in order to maximize the number of days of continuous use without any solar charging
  11. Shall include an integrated Real Time Clock with on-board battery backup
  12. Shall be housed in its own IP67 type enclosure
  13. Shall have the capability of RS232 communications for programming with Windows-based software
  14. Shall have the capability to seamlessly integrate with a 900 Mhz FHSS wireless transceiver to form a network of connected devices.
  1. Battery Pack
  2. Shall be rechargeable and manufactured utilizing Nickel Metal Hydride (NiMH) technology
  3. Battery packs shall have a nominal output voltage of 4.8 VDC and a capacity of 14Ah Nickel Metal Hydride (NiMH)
  4. Shall have an in-line power connector
  5. Shall be fused for short circuit protection
  6. Shall be sealed in a plastic film to provide moisture and corrosion resistance.
  7. Additional battery capacity options are available as needed for different system configurations
  1. Solar Panel
  2. Shall be 13.8”x15.4” in size
  3. Shall provide up to 13.5 watts peak total output powerand operate at a nominal voltage of 6VDC
  4. Shall have an inline connector that is Deutsch DTM series
  5. Shall have a maximum output voltage of 9.1VDC, a maximum output current of 1.49A, short circuit current of 1.52 A, and an open circuit voltage of 11 VDC
  6. Shall operate from -40° to +194°F (-40° to +90°C)
  7. Shall be UL 1703, IEC 61215 and TUV certified
  8. Shall have connectors that conform to IP67 and shall be protected from temporary immersion in water up to 1 meter deep for 30 minutes
  9. Shall utilize anti-vandal pin-type set screws for fasteners. Wrench shall be provided
  10. Additional solar panel options are available as needed for different system configurations
  1. Optional Wireless Transceiver

Seamlessly integrate multiple LED enhanced signs wirelessly for simultaneous activation and synchronization within a warning system.

  1. Shall operate on the license free 900 MHz ISM band
  2. Shall have a line of sight communication range of 1000 feet
  3. Shall seamlessly integrate with any of the system flash controllers to ensure synchronous activation of other system components with wireless transceivers
  4. To ensure all integral indications consistently flash in unison, the Radio shall synchronize the flash controllers to activate the indications within 120msec of one other and remain synchronized throughout the duration of the flashing cycle
  5. Shall have onboard LCD to report system information such as battery voltage, temperature, and solar charging levels
  6. Shall include two LED indicators for status and troubleshooting
  7. Shall be capable of being programmed to operate as a Parent (Gateway) or Child (Node or Repeater)
  8. Radio system shall allow for entire system programming of flash duration from a single radio location
  9. Shall operate from 3.3 to 15VDC
  1. Activation Device

A few of the more common methods of activating a LED enhanced solar sign or sign system include: Pedestrian Walk through Bollards, TimeClock or Pedestrian Push Button. Additional activation methods are also available

Pedestrian Walk Through Bollards

  1. Each bollard shall have dual “A” and “B” Infrared Sensors with a detection range of up to 40 feet
  2. Dual infrared sensors in each bollard shall activate when sensor “A” and then sensor “B” detects a pedestrian in this sequence to prevent system activation when exiting the crosswalk
  3. Each infrared bollard and integrated wireless activation controller shall be “D” size lithium battery powered for up to 2 years of operation without a battery change
  4. Bollard housing shall be Anodized aluminum up to 42” tall
  5. Sensor windows shall be made of acrylic
  6. Bollard housing shall be vented to prevent moisture and condensation
  7. Bollard housing shall be mounted to surface plate with concrete anchoring hardware included

TimeClock

  1. Shall include integrated time-clock functionality, including a minimum of 16 events per day, and up to 8 selectable day types
  2. Shall include data-logging capabilities with selectable interval from one minute to one day
  3. Shall include a standard 4- cell battery pack for primary power
  4. Shall include a backup battery to maintain time of day and calendar information should primary battery power be lost
  5. Shall store the programmed calendar and day control information in non-volatile memory
  6. Shall be capable of switching a load of up to one amp and can control lighting relays
  7. Windows based operating software for programming
  8. Daylight savings time and holidays are programmable

Pedestrian Push Button

  1. The Push Button shall be capable of continuous operation within a temperature range of -30º to 165ºF (-34º to 74ºC).
  2. The Push Button shall be ADA compliant, and shall operate as a normally open (n/o) circuit
  3. Shall Be Polara Bulldog Model Series 3