Attachment_3_Basis_of_Design_Architect_Specifications.pdf

Small Matrix GS6 Display Architect Specifications Master Specification – Section 10.40.00

Daktronics GS6 Galaxy Model:

GS6-(40/Matrix)x(200/Matrix )-(15.85) RED Two View

GENERAL

1.01 SECTION INCLUDES

A. LED message centers

B. Control software

1.02 REFERENCES

A. Standard for Electric Signs, UL and CUL Listed

B. Standard for Control Centers for Changing Message Type Signs

C. Federal Communications Commission Regulation Part 15

D. National Electric Code

E. Designed to current UBC or IBC standards

F. FCC Class A Compliant

1.03 SUBMITTAL

A. The electronic LED display manufacturer shall provide a complete technical submittal within 20 days of contract award and shall not proceed with LED Matrix manufacture until the submittal is approved.

B. Submit:

1. All LED display manufacturer qualifications, as specified herein.

2. LED display shop drawing.

3. LED display Riser diagram.

4. AC Site Power Requirements, including legs and Amps per leg.

5. LED display control software operator’s manual.

6. LED display installation and maintenance manual.

1.04 WARRANTY

A. Provide 5 years of parts coverage

B. Provide toll-free service coordination

C. Provide a toll-free help desk number that will be staffed from 7 a.m. to 7 p.m. Central Time

PART 2: PRODUCTS

2.01 LED Display

A. Cabinet Construction

1. The current cabinet dimensions are 10’ x 5’ frame structure which is 10 feet off the ground. The front-to-back cabinet depth shall not exceed 5 inches.

2. The cabinet shall contain a full LED matrix measuring a minimum of (40 lines) pixel rows high by 200 pixel columns wide.

3. Cabinet display configuration is:

a. Two-View (2V), two one sided displays typically installed back-to-back and show same content on both sides.

4. The distance from the center of one line or column of pixels to the center of all adjacent lines or columns shall be 15.85 mm (.62”) line spacing both horizontally and vertically.

5. Maximum display power per face shall not exceed 880 watts when 100% of the pixels are operating at their maximum possible drive current.

6. Display shall operate from the following power sources: 120/240 VAC, 60 Hz single-phase, including neutral and earth ground.

7. Display shall operate in a minimum ambient temperature range of -40° to +120°F (-40 to +50°C) and to a 95% humidity.

8. 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.

9. Electrical display components shall be 100% solid-state.

10. 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.

B. Housing Frame

1. Display materials shall use non-corrosive materials or have a protective coating so they shall be anti-corrosive and not degrade or oxidize.

2. Adequate ventilation shall be provided through convection without the need to provide extra space around the sides or behind the display.

3. Steel mounting points that can be used for mounting purposes shall be provided with the display and have the ability to be adjusted for alternative mounting methods.

4. Shall include lifting supports that can be removed after installation.

C. Exterior Finish

The LED display border pieces shall be coated with an automotive-grade acrylic urethane paint.

D. Front Face Construction

1. 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.

2. Minimum features of front face shall:

a. Provide UV resistance to prevent discoloring.

b. Include horizontal louvers for contrast enhancement.

c. Include vertical ribbing for contrast enhancement

d. Use surface materials in the active LED area, such as metal, plastic, or other face materials, designed for low sunlight reflectivity.

E. Serviceability

1. The display housing shall provide safe and convenient front service access for all modular assemblies, components, wiring, and other materials located within the housing.

2. All internal components shall be removable and replaceable by a single technician with basic hand tools.

3. Service access shall be easily obtained by removal of one or more modules in front of the associated internal component.

4. Each module should allow simple removal with a single latch system.

5. Displays shall be designed with service features that minimize potential bodily harm.

2.02 DISPLAY COMPONENTS

A. LED display modules shall be constructed for good readability, long life, and ease of service. Each display module shall be constructed as follows:

1. Each module within the product family shall be designed with the same physical footprint of 12.48” x 15.59”.

2. All modules and their components shall be fully encapsulated and sealed to meet IP- 67 standards.

3. An LED module shall consist of LEDs with all drive electronics mounted on a single Printed Circuit Board (PCB).

4. LEDs shall be auto-inserted in order to maintain quality and uniformity of the LEDs within each LED module.

5. All PCBs shall be wave-soldered to ensure uniformity, quality, and durability of all solder joints.

6. All PCBs shall be cleaned in a manner so as not to contain more than 2 parts per million contaminants.

7. Module signal and electrical connections shall be of the positive locking and removable type. Removal of a module from the display shall not require a de-soldering operation.

8. Data to the modules shall be redundant in that the signal can reach the module from multiple directions in the event of a loss in signal path from either direction.

9. All LED display modules in a single display shall be identical in construction and interchangeable throughout the display with the ability to be field calibrated.

10. All module rows shall include continuous louvers over the LEDs for sunlight shading and enhanced contrast.

11. Modules shall be individually attached to the cabinet frame.

12. Removal of one or more modules shall not affect the display’s structural integrity.

13. The distance from the center of one line or column of pixels to the center of all adjacent lines or columns shall be 15.85 mm (.62”) both horizontally and vertically.

14. The failure of a single pixel, module or power supply shall not cause the failure of any other pixel, module or power supply in the display.

15. All modules shall have no less than a 140° horizontal half-intensity viewing angle and a readability angle of 160° horizontal.

16. The transition of the viewing intensity shall be consistent throughout the viewing cone.

B. Pixels shall be constructed with discrete LEDs, and these discrete LEDs shall conform to the following specifications:

1. LEDs shall be non-diffused, ultra-bright, solid-state light emitting diodes.

2. The red LEDs shall be constructed of AlInGaP technology and the green and blue LEDs shall be constructed of InGaN technology.

3. Each color of LEDs used in all LED displays provided for this contract shall be from the same bin.

4. LED half-life shall be an estimated minimum of 100,000 hours.

5. Display shall have a minimum intensity of 10,000 cd/m2 for RGB maximum light output, 4,500 cd/m2 for Red maximum light output, and 6,000 cd/m2 for Amber maximum light output.

C. Power Supply

1. All power supplies shall be regulated, auto-ranging AC to DC power, with protection for the LED pixel, LED display and driver circuitry in the event of power spikes or surges.

2. Each power supply and their connectors shall be fully sealed to protect from corrosive environmental factors meeting IP-67 standards.

D. Internal Wiring

1. Wiring for LED display modules and other internal components shall be installed in the housing in a neat and professional manner.

2. Wiring shall not impede the removal of display modules, power supplies or other display components.

3. Wires shall not make contact with or be bent around sharp metal edges.

4. All wiring shall conform to the National Electric Code.

E. The display shall be protected from electrical spikes and transients.

F. The manufacturer shall provide an earth-ground lug on the display.

2.03 DISPLAY PERFORMANCE

A. Display Capability

1. The LED display shall present messages that are continuous, uniform, and unbroken in appearance.

2. The LED display shall be capable of producing 281 trillion colors for RGB and 4096 shades of color for monochrome red or amber at all dimming levels.

3. Each display pixel shall be composed of one each – red, green, and blue LEDS or one red or one amber

4. The LED display shall be capable of displaying all true type fonts.

5. The display shall be able to display messages composed of any combination of alphanumeric text, punctuation symbols, graphic images, and pre-canned video files.

6. Video and message files shall have up to a 30 frame per second playback capability.

B. Controller

1. The display’s controller shall be able to run independently from a controlling computing device allowing the display to operate even when the controlling device is unhooked or turned off.

2. Communication protocol shall support other matrix products from the vendor such as other outdoor or indoor displays of varying sizes and/or colors.

3. Each controller shall be connected to a light sensor allowing each LED display to automatically adjust brightness according to display direction and lighting conditions.

4. The controller shall allow connection to a temperature sensor that provides accurate site temperatures.

5. Active presentations, stored presentations, schedules, display configuration, time and date shall be stored in non-volatile memory. No external power or battery backup will be required to maintain this data.

C. Control and Communications

1. The display controller should be DHCP-enabled and allow for static IP addressing.

2. Each single-face display shall be controlled and monitored by its own LED controller.

3. The LED controller shall be able to receive instructions from and provide information by accessing the Venus Control Suite using the following communication modes:

• Select one only:

• [Ethernet Bridge Radio]

2.04 CONTROL SOFTWARE

A. Control Software: Display content and scheduling shall be via brand name or equal Venus Control Suite (VCS) cloud-based solution. Software to be hosted on manufacturer’s servers at no cost to the customer. Web browser access to the solution to support iOS Safari, Android Chrome, Internet Explorer v11+, Microsoft Edge, Google Chrome and Mozilla Firefox.

B. Basic content creation to be performed via browser-based online editor.

C. Expanded content creation tools available via PC-compatible Content Studio download.

D. Supports import of images (PNG, BMP, GIF, JPG, PSD) and video files (AVI, MPG, MP4, MOV) in both browser-based and downloadable content utilities.

E. Sign to be added to existing customer brand name or equal VCS account.

PART 3: EXECUTION

3.01 EXAMINATION

Mounting structure to be installed by contractor to support desired displays in all locations.

Verify that separate conduit is in place for power and data to display, unless fiber is being used. Verify that all control equipment has access to 120 VAC.

3.02 INSTALLATION

A. Support structure design depends on the mounting methods, display size, and weight.

The structure design is critical and should be done only by a qualified individual. It is the customer’s responsibility to ensure that the structure and mounting hardware are adequate.

B. It is the customer’s responsibility to ensure that the installation meet local standards. The mounting hardware shall be capable of supporting all components to be mounted.

C. All mounted displays must be inspected by a qualified structural engineer.

D. Possible power and signal entrances are designated by etched markings. Separate conduit must be used to route the power, signal in wires, and signal out wires.

E. Displays must be grounded according to the provisions outlined in Article 250 of the National Electrical Code. The display must be connected to earth-ground. Proper grounding is necessary for reliable equipment operation and protects the equipment from damaging electrical disturbances and lightning.

END OF SECTION