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Special Specification 6166
Ferry Message Display Board System
1. DESCRIPTION
Furnish and install Color Light Emitting Diode (LED) Ferry Message Display Boards and associated control software.
2. MATERIALS
Ensure all display elements and modules are solid state. Do not use mechanical or electromechanical elements or shutters.
2.1. General Requirements. Furnish new, corrosion resistant materials. Furnish, assemble, fabricate, and install materials as shown on the plans, as required by this item, and in conformance with the pertinent requirements of the following:
Special Specification 6006, “Electronic Components”
Special Specification 6005, “Testing, Training, Documentation, Final Acceptance, and Warranty”
Furnish and install the following equipment at each field site shown on the plans: LED Message Display Board;
Field controller;
Structural mounting brackets and hardware;
Cabling; and
Communications equipment.
Make all equipment fully operational at each location.
2.2. Ferry Message Board. Provide and install a full matrix message board which will display alphanumeric text, graphical characters and display basic animation.
2.2.1. Physical Characteristics.
2.2.2. Display Enclosure. Ensure each display board presents a clean and neat appearance. Poor workmanship is cause for rejection. Protect equipment within the enclosure from moisture, dust, dirt, and corrosion. Construct the enclosure skin with 1/8 in. thick 5052-H32 aluminum alloy or an approved equal. Use aluminum alloy 6061-T6 or 6063-T5 or approved equal, for framing structural members.
Provide a front-access enclosure of modular design, configured to form a single face display.
Design the enclosures to withstand wind loadings of 100 MPH, without permanent damage.
Install drain holes in the bottom panel of the enclosure.
Provide the enclosure with adequate ventilation to protect the internal components from environmental effects.
Weatherproof the enclosure to a NEMA 3R rating.
Ensure system performance will not be impaired due to continuous vibration caused by wind, traffic or other factors. This includes the visibility and legibility of the display.
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Equip the front face of the enclosure with an ultra-violet resistant, anti-reflective coating to enhance message contrast.
Ensure that the presence of ambient magnetic or electromagnetic fields, including those created by any components of the system, will have no deleterious effect on the performance of the system. Ensure the system does not conduct or radiate signals, which will adversely affect other electrical or electronic equipment including, but not limited to, other control systems, data processing equipment, audio, radio and industrial equipment.
Equip the enclosure with all necessary mounting brackets and hardware needed to attach the enclosure to the structure.
Design the mounting fixtures and structures for a horizontal angular adjustment to optimize viewing angle as directed. Submit shop drawings dated, signed, and sealed by a Licensed Professional Engineer for mounting fixture and structure designs and modifications before fabrication.
2.2.3. Display Modules. Assemble display modules to form a uniform single face full matrix display.
Ensure all modules are identical and interchangeable throughout the entire display.
Make all electrical connections to the module using connectors. Soldered cable connections are not acceptable.
Ensure each module is individually removable using basic hand tools.
Ensure all modules are covered by an anti-reflective front cover.
2.3. Optical and Electrical Characteristics.
2.3.1. LED and Pixel Characteristics. Use combinations of red, green and blue LEDs to provide unlimited color display combinations.
Ensure all pixels in all displays installed on this project have equal color and on-axis intensity.
2.3.2. Characters Displayed. Provide systems which will display all ASCII alphanumeric characters in multiple fonts and character heights and also will display graphical figures and basic animation at any location on the display board.
Provide systems sized to display a minimum of 3 lines of 18 characters at a nominal height of 12 in.
Ensure each display is legible under all light conditions at a distance of 200 ft. to 1100 ft. within a 15° cone of vision centered on the optical axis.
Utilize photocells to ensure the proper brightness is displayed in all lighting conditions for optimum legibility.
Ensure the brightness and color of each pixel are uniform over the entire face within the 15° cone of vision from 200 ft. to 1100 ft. in all lighting conditions. Non-uniformity of brightness or color over the entire face under these conditions will be cause for rejection.
2.4. Environmental Behavior. Provide equipment which will operate without any decrease in performance over an ambient temperature range of –40°F to + 120°F with a relative humidity of up to 95%.
2.5. Main Power Supply and Energy Distribution. Design the display system and its controller for use on the following:
Power Line Voltage - 120/240 VAC Nominal, single-phase power, protected by one 30 Ampere, two-pole (common trip) main circuit breaker. The system must operate within a voltage range of 95 VAC to 135 VAC.
Frequency – 60 Hz. ±3 Hz.
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Perform all electrical work in full conformance with the National Electrical Code.
Protect the system by using transient voltage suppression devices on the incoming power lines, including MOV’s and spark gap arrestor.
Ensure all service outlets are equipped with ground fault circuit interruption (GFI) protection.
Provide power cables with type XHHW insulation and sized as required by the NEC for acceptable voltage drop to supply AC power.
2.6. Field Controller. Program the field controller to receive control commands from the master controller, transmit responses as requested to the master controller, and control system operation and message displays.
Design the controller for fail-safe prevention of improper information display in the case of a system malfunction.
Failure of any display must not affect operation of any other display in the system.
Mount the field controller in the enclosure or in a separate cabinet mounted on the structure. Equip the separate cabinet with a #2 Corbin lock.
Provide a TCP/IP Ethernet communications interface suitable for use with copper, fiber optic or wireless transmission equipment.
Assign a unique IP address to each field controller. Ensure each field controller is individually addressable from the master controller.
2.6.1. Field Controller Functions. The field controller must be controlled from the Master Controller and must perform the following functions:
Display a message, including:
Static messages;
Alternating messages;
Messages composed of or containing graphical figures;
Messages with mixed fonts and font spacing;
Animated messages; and
Combined graphic/text message.
Monitor the operational status of the display and report errors and warnings to the master controller.
When the display time of a message has expired, ensure the controller sets the display to blank or a default message in field controller memory.
Message additions, deletions, and changes in the field controller must be made from the Master Controller.
2.6.2. Safety of Operation.
2.6.2.1. Primary Input Power Interruption. Use material that meets the requirements of Section 2.1.4 “Power Interruption” of the NEMA Standard TS2, latest revision.
2.6.2.2. Power Service Transients. Use material that meets the requirements of Section 2.1.6 “Transients, Power Service” of NEMA Standard TS2, latest revision.
2.7. Master Controller Software Provide one set of control software configured to control all display boards provided on the contract. Provide Windows-based software with the following minimum functionality:
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Message creation, editing, spellcheck, review and scheduling
Importing of animated and graphic files
Check status of all errors and other operational attributes of each display
Configure all displays on the system
Perform diagnostics
Maintain storage for minimum of 200 predefined display messages
Ensure the software requires password protection for access and is compatible with other Windows-
based software. Provide all necessary assistance to install the software and make it operational. After
installing the master control software, demonstrate the ability to operate all message boards installed on
the project utilizing the software.
3. CONSTRUCTION
3.1. General. Utilize the latest available techniques to minimize the number of different parts, subassemblies, circuits, cards and modules to maximize standardization and commonality. Design equipment for ease of maintenance. Component parts must be readily accessible for inspection and maintenance. Provide and label test points for checking essential voltages. Use connectors for external connections. Key the connectors to preclude improper hookups.
Provide a clear 1/8 in. thick removable Lexan cover over all exposed power terminals. Ensure this cover does not interfere with the routine functions or maintenance operations.
Silk screen all markings and identification on the panel and seal with a clear sealer, color engraved on a clear Lexan terminal cover, or as approved.
3.2. Mechanical Components. Provide stainless steel external screws, nuts, and locking washers. Do not use self-tapping screws unless approved. Provide corrosion resistant materials and materials resistant to fungus growth and moisture deterioration. Separate dissimilar metals with an inert dielectric material.
3.3. Documentation. Provide sufficient documentation to reflect “as-built” conditions and to facilitate operation, maintenance, modification, and expansion of the system or any of its individual components. Manufacturer supplied documentation which covers the intent of this requirement may be used, subject to the approval of the Engineer.
3.3.1. Submittal Documentation. Each applicable equipment item or component must be documented in a manual and submitted for approval. Provide 5 copies of the manual. Include the following information in the manual:
A general description of the equipment including all information necessary to describe the basic use or
function of the system components and a general “block diagram” presentation of the equipment.
The theory of operation of the system components in a clear, concise manner supported by simplified
schematics, logic, data flow diagrams, one-function diagrams, etc. If required, include timing and
waveform diagrams, and voltage levels. Use a logical development starting with a system block level
and proceeding to a circuit analysis. Detail circuit analysis whenever circuits are not normally found in
standard textbooks. Describe the application of new theoretical concepts. Where the design allows
operation in a number of different modes, include an operational description of each mode.
The routine of operation from necessary preparations for placing the equipment into operation to
securing the equipment after operation. Include appropriate illustrations, with the sequence of
operations presented in tabular form wherever feasible. Include a list of applicable test instruments, aids
and tools required in the performance of necessary measurements and techniques of each system
component. Describe set-up test and calibration procedures.
The manufacturer's recommended procedures and checks necessary for preventive maintenance.
Specify for pre-operation, weekly, monthly, quarterly, semi-annual, annual, and “as required” checks as
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necessary to assure reliable equipment operation. Include tolerances, for all electrical, mechanical, and
other applicable measurement, adjustments, or both.
Data necessary for isolation and repair of failures or malfunctions, assuming the maintenance
technicians to be capable of analytical reasoning using the information provided in above subsection.
Describe accuracies, limits, and tolerances for all electrical, physical, or other applicable measurements.
Include general instructions for disassembly, overhaul, and reassemble, including shop specifications or
performance requirements.
The parts list with all information required to describe the characteristics of the individual parts, as
required for identification. It must include a list of all equipment within a group and list of all assemblies,
subassemblies, and replacement parts of units. The tabular arrangement must be in alphanumerical
order of the schematic reference symbols and must give the associated description, manufacturer’s
name, and part number. A table of contents or some other convenient means, e.g., appropriate
grouping, must be provided for the purpose of identifying major components, assemblies etc.
Complete and accurate schematic diagrams as required to supplement the text material and to allow the
books to be a self-contained technical information source. Limit the size of these diagrams to allow their
use in close proximity of the equipment, in the classroom, etc., part reference symbols, test voltages,
waveforms, and other aids to understanding of the circuit's function must be included on the diagrams.
Test voltages, waveforms, and other aids to understanding of the circuit’s function may be shown on
either the simplified schematics or other drawings (as required in the above sections) on theory of
operation or maintenance or on the schematic diagrams required for this section. The overall scope of
information must not be less, however, than that stated for the schematic diagrams.
3.3.2. Final Documentation. Provide as-built final documentation for approval reflecting all field changes and software modifications. Include detailed drawings of conduit layouts, cable diagrams, wiring lists, cabinet layouts, wiring diagrams and schematics for all elements of the communications system. Include the cable type, color code and function, the routing of all conductors in the cable diagrams and wiring lists.
Provide software, documentation, and intellectual property rights for the master controller software system and components. These must include, but are not limited to, the following:
3.3.2.1. Deliver.
All documentation concerning field controller communications protocol, including all documentation needed to define the interface design, message definitions, and message sequence for control and feedback.
One copy of all documentation supplied by the manufacturers for all plug-in circuit cards used in the microcomputer chassis.
3.3.2.2. License. Grant the Department a non-exclusive unrestricted license that will allow the Department to use, modify, or distribute any or all of the stated communication protocols and documentation.
3.4. Technical Assistance. Ensure that a manufacturer's representative is available to assist the Contractor's technical personnel at each installation site. The manufacturer's representative must provide technical assistance for mounting and installation.
Do not initiate electrical power to the display without the permission of the manufacturer's representative.
3.4.1. Training. Provide operational and maintenance training in accordance with Special Specification 6005, “Testing, Training, Documentation, Final Acceptance, and Warranty.”
3.4.2. Testing Requirements. Perform tests in accordance with Special Specification 6005, “Testing, Training, Documentation, Final Acceptance, and Warranty.” Additional testing requirements are as follows:
3.4.3. System Tests. Conduct approved system tests on the field equipment with the central equipment. The tests must, as a minimum, exercise all remote control functions and display the return status codes from the
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controller for a minimum of 72 hr. Approved data forms must be completed and submitted as the basis for review and for rejection or acceptance. If system tests fail because of any component(s) in the subsystem, the particular component(s) must be corrected or substituted with other components(s) and the tests must be repeated. If a component has been modified as result of the system test failure, a report must be prepared and delivered to the Engineer prior to retesting.
3.4.4. Final System Acceptance. Perform a final system acceptance in accordance with Special Specification 6005, “Testing, Training, Documentation, Final Acceptance, and Warranty.”
3.4.5. Requirements for Shop Drawings. Submit shop drawings electronically in PDF format for approval before fabrication, include the structural members and attachment supports.
3.4.6. Warranty. Provide a warranty in accordance with Special Specification 6005, “Testing, Training, Documentation, Final Acceptance, and Warranty.”
4. MEASUREMENT
This Item will be measured as each unit furnished, installed, and tested.
5. PAYMENT
The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “Ferry Message Board Display System.” This price is full compensation for furnishing, placing and testing all materials and equipment, and for all tools, labor, equipment, hardware, operational software package(s), supplies, support, personnel training, shop drawings, documentation, and incidentals.
