Compliance Table.docx

DMS Specification Compliance Table The Proposer must include a copy of the DMS Specification Compliance Table in the proposal (see Section 2.19, Specification Compliance Table, page 14). For each specification, the Proposer must furnish one of the following responses:

· “Yes” for full compliance

· “Partial” for partial compliance

· “No” for non-compliance In Section 4.17 Specification Deviations, the Proposer should list the number of each specification receiving a “Partial” or “No” compliance response and explain the deviation in sufficient detail to allow proposal evaluators to assess its significance.

Table 4: DMS Specification Table

Manufacturer Qualifications

The DMS manufacturer will have been in the business of manufacturing large outdoor permanently mounted LED-based message signed used to manage roadway traffic for at least 10 years prior to the contract bid date.

The DMS manufacturer will have been in business under the same corporate name for at least ten (10) years prior to the contract bid date.

The DMS manufacturer will have in operation as of the contract bid date at least ten independently owned and operated DMS systems each containing at least 10 permanently mounted signs that use the National Transportation Communications ITS Protocol (NTCIP) as their primary communication protocol.

The DMS manufacturer will have in place a Quality Management System certified to ISO 9001:2008 or the latest released standard of ISO 9001.

The DMS manufacturer will have a customer service department that provides technical support and services, staffed from 8 am to 5 pm Central Time at a minimum.

The DMS manufacturer will offer bench-level repair services for failed components and will stock most parts for replacement.

The DMS manufacturer will offer extended warranty, service, and maintenance plans.

Functional Requirements

The Contractor will retrofit new display and control electronics to SDDOT’s thirty (30) existing dynamic message signs at locations indicated in APPENDIX A: SDDOT DMS LOCATIONS AND MODELS.

The Contractor will provide all the materials and services necessary to install new display and control electronics and associated equipment that fully comply with these specifications, including incidental items that may have been inadvertently omitted.

All equipment and materials, including any furnished by other manufacturers, will be new, of latest design, and currently in production.

All components will operate throughout the temperature range of 30°F to +165°F and a relative humidity range of 0 to 99% non-condensing and will not be damaged by storage or temporary operational exposure to a temperature range of -40°F to +185°F.

Where allowed, equivalents will require approval of the SDDOT’s Intelligent Transportation Systems (ITS) Program in writing prior to installation.

The DMS will meet the environmental requirements defined in the National Electrical Manufacturers Association (NEMA) Standards Publication TS 4, Hardware Standards for Dynamic Message Signs.

The DMS will be designed in accordance with NEMA Standards Publication TS 4, Hardware Standards for Dynamic Message Signs (DMS), with NTCIP Requirements.

The DMS and all associated equipment and enclosures will be listed by the Underwriters Laboratories (UL) and will bear the UL mark on the outside of the DMS enclosure. Control equipment and enclosures will conform to UL 1433 Standard for Control Centers for Changing Message Type Electric Signs.

The DMS will be designed in accordance with Federal Communications Commission (FCC) Part 15, Subpart B as a “Class A” digital device.

All printed circuit boards will be sealed with acrylic conformal coating.

DMS weight will not exceed 3200 pounds.

The DMS will meet WL9 wind load requirements.

Sign Support (Sign 31, I-90 Whitewood Only)

The Contractor will design and furnish a single pole structure to support the display housing in a center-mounted “butterfly” configuration

The Contractor will install the single pole structure on a foundation provided separately by SDDOT.

A Professional Engineer registered in the State of South Dakota will develop the complete DMS structural design, including the pole support, cabinet, mounting brackets, and lifting eyebolts, and bracket-to-housing mounting hardware provided by the DMS manufacturer, and certify that the DMS:

· complies with the applicable requirements of AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals

· complies with the fatigue resistance requirements of NCHRP Report 412, Fatigue-Resistant Design of Cantilevered Signal, Sign, and Light Supports.

The analysis will include but will not be limited to:

· material, dimension, and attachment specifications for the pole support structure

· attachment of the pole support to the foundation

· the quantity and type of lifting eyebolts to be provided

· the quantity and type of mounting brackets to be provided

· the quantity and type of hardware (nuts, bolts, washers) used to attach the mounting brackets to the DMS

· verification that no dissimilar metals problem will exist and/or affect the structural integrity of the DMS-to-bracket attachment points

· a recommendation of the number of attachment points, as well as the attachment locations, that the installing contractor should use when mounting the DMS to its support structure

Display Cabinet (Sign 31, I-90 Whitewood Only)

The Contractor will furnish and install a display cabinet that protects internal components from rain, ice, dust, and corrosion.

The display cabinet will provide walk-in service access for all LED display modules, electronics, environmental control equipment, air filters, wiring, and other internal DMS components.

The display cabinet will comply with type 3R enclosure criteria as described in the latest revision of NEMA Standards Publication 250, Enclosures for Electrical Equipment (1000 Volts Maximum).

The display cabinet will be designed and constructed to comply with all applicable sections of AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaries and Traffic Signals, as well as the fatigue resistance requirements of NCHRP Report 412, Fatigue-Resistant Design of Cantilevered Signal, Sign, and Light Supports.

Display cabinet dimensions will not exceed 96” high by 264” wide by 48" deep.

The display cabinet will be designed, fabricated, welded, and inspected in accordance with the latest revision of ANSI/AWS D1.2 Structural Welding Code-Aluminum.

The display cabinet structural frame will consist of aluminum extrusions made from 6061-T6 and/or 6063-T6 aluminum alloy. All sides of the display cabinet exterior, except the front, will be covered with thick aluminum sheets made from 5052-H32 aluminum alloy permanently attached to each other with structural rivets or chemically bonded structural adhesive.

DMS structural assembly hardware (nuts, bolts, washers, and direct tension indicators) will be galvanized A325 high-strength steel and will be appropriately sized for the application.

All sides of the display cabinet exterior, except the front of the LED modules, will be 0.125-inch thick aluminum alloy 5052-H32 sheet attached to the structural framework with structural fasteners or chemically bonding structural adhesive.

The aluminum skin will be welded to the display cabinet structural frame. All exterior sheet seams will be continuously seam welded to the structural frame to form a single structure. Stitch welding will be used on the interior of the cabinet to attach the aluminum skin sheets to the frame.

External DMS component hardware (nuts, bolts, screws, standoffs, rivets, fasteners, etc.) will be fabricated from hot dipped or mechanically galvanized steel, stainless steel, aluminum, nylon, or other durable corrosion-resistant materials suitable for the roadway signage application.

Display cabinet right, left, and rear walls will be vertical. The top and bottom sides will be horizontal. The front DMS wall will be built with a permanent forward tilt angle of three (3) degrees, so LED display modules are tilted three (3) degrees forward toward viewing motorists and use of the legible LED viewing area is optimized.

All external surfaces on the rear and sides of the display cabinet, including access doors and mounting brackets, will be natural mill-finish aluminum.

The display cabinet bottom side will contain weep holes, screened to prevent the entrance of insects and small animals, to drain water that accumulates due to condensation.

The display cabinet will be equipped with a level, non-slip aluminum walkway at least 24 inches wide running the entire length of the cabinet.

Mounting Brackets

Multiple mounting brackets in the form of Z-bar extrusions will be bolted to structural frame members at the display cabinet exterior rear wall to attach the DMS to the support structure.

Mounting brackets will be extruded from aluminum alloy 6061-T6.

Brackets will be attached to the DMS using mechanically galvanized A325 high-strength steel bolts and direct tension indicators to verify that mounting hardware is tightened with the proper amount of force.

All bracket-to-DMS attachment points will be sealed and water-tight.

Brackets will be designed and fabricated such that the installing contractor can drill into them without penetrating the display cabinet and compromising the cabinet’s water tightness.

Lifting Hardware

Multiple galvanized steel lifting eyebolts will be attached directly to the display cabinet structural frame at the DMS factory.

Lifting hardware and the cabinet frame will be designed so the DMS can be shipped, handled, and installed on its support structure without damage or excessive stress.

All eyebolt mounting points will be sealed to prevent water from entering the display cabinet.

The lifting eyebolts will be easily removed by one person without opening or entering the display and without risk of compromising water tightness.

Doors

The display cabinet will include an 80” vertically hinged, outward opening access door at each end of the display cabinet (two doors per sign total).

Each doorframe will be double flanged on all sides to shed water.

Each door will close around the flanged doorframe and compress against a closed-cell foam gasket bonded to the door.

Each door will latch to its doorframe with a three-point draw-roller mechanism with internal handle and release lever to prevent service personnel from becoming trapped in the sign.

Each door will be equipped with a sensor to detect whether the door is open or closed.

Each door will be equipped with a lock keyed to a Corbin #2 lock.

Each door will be equipped with a stop that securely retains the door in a 90-degree open position in a 40-mph wind.

The display cabinet will be equipped with OSHA-compliant safety rail assembly at each door to prevent service personnel from falling through an open door.

The display cabinet will be equipped with an OSHA-compliant anchor point just inside each door for connection of a personal fall arrest system.

Environmental Control

The display cabinet will contain systems for cabinet ventilation, face panel fog prevention, and safe over-temperature shutdown.

The display cabinet will contain an electronically controlled ventilation system and a failsafe thermostat designed to keep internal components safe when the outdoor ambient temperature is +115°F or less.

The ventilation system will include multiple air intake ports, each covered with a filter that removes airborne particles measuring 500 microns in diameter and larger and equipped with one or more ball bearing-type fans that positively pressure the DMS cabinet.

Fans and air filters will be removable and replaceable from inside the display cabinet.

Each primary ventilation fan will contain a sensor to monitor and report its rotational speed to the sign controller.

One exhaust port, screened to prevent the entrance of insects and small animals, will be provided for each air intake port.

An aluminum hood attached to the rear wall of the DMS will cover each air intake and exhaust port and be thoroughly sealed to prevent water from entering the DMS.

A timer switch adjustable from zero (0) to four (4) hours will be located just inside the access door to manually activate the ventilation system.

For regions identified that experience regular high ambient temperatures, the addition of pixel fans will be incorporated into the design to prevent thermal dimming of the modules.

The display cabinet will contain an automatically controlled system to keep the front face polycarbonate panel free of fog and condensation when the internal relative humidity approaches condensation levels.

Display Cabinet (Signs 1 – 30)

The Contractor will use the existing display cabinet to protect the display and other internal components from rain, ice, dust, and corrosion.

The Contractor will install, replace, or repair seals at doors, opening, and seams of the display cabinet as necessary to comply with type 3R enclosure criteria as described in the latest revision of NEMA Standards Publication 250, Enclosures for Electrical Equipment (1000 Volts Maximum).

The Contractor will replace the systems for display cabinet ventilation, face panel fog prevention, and safe over-temperature shutdown.

The ventilation system will be electronically controlled and include a failsafe thermostat designed to keep internal components safe when the outdoor ambient temperature is +115°F or less.

The ventilation system will include multiple air intake ports, each covered with a filter that removes airborne particles measuring 500 microns in diameter and larger and equipped with one or more ball bearing-type fans that positively pressure the DMS cabinet.

Fans and air filters will be removable and replaceable from inside the display cabinet.

Each primary ventilation fan will contain a sensor to monitor and report its rotational speed to the sign controller.

One exhaust port, screened to prevent the entrance of insects and small animals, will be provided for each air intake port.

An aluminum hood attached to the rear wall of the DMS will cover each air intake and exhaust port and be thoroughly sealed to prevent water from entering the DMS.

A timer switch adjustable from zero (0) to four (4) hours will be located just inside the access door to manually activate the ventilation system.

For regions identified that experience regular high ambient temperatures, the addition of pixel fans will be incorporated into the design to prevent thermal dimming of the modules.

The display cabinet will contain an automatically controlled system to keep the front face polycarbonate panel free of fog and condensation when the internal relative humidity approaches condensation levels.

Display

The Contractor will install a full-color matrix display measuring 96 pixel rows high by 288 pixel columns wide and display messages that are continuous, uniform, and unbroken in appearance.

The pixel matrix be able to display alphanumeric characters at least 6” high in accordance with the definition by NEMA TS 4 Hardware Standards for Dynamic Message Signs Standards.

The retrofitted DMS will be able to display messages comprising any combination of alphanumeric text, punctuation symbols, and graphic images across multiple frames.

The LED display will be legible within a distance range of 300 feet when mounted according to the manufacturer’s instructions.

The LED display will be legible 24 hours per day, including dawn and dusk hours when sunlight shines directly on the display face or the sun is directly behind the sign, and in most normally encountered weather conditions.

Front Face

The DMS front face will be constructed with multiple rigid panels, each of which supports and protects a full-height section of the LED display matrix. The panels will be fabricated using aluminum sheeting on the exterior and polycarbonate sheeting on the interior of the panel.

Front face panels will provide a high-contrast background for the DMS display matrix. The aluminum mask of each panel will be painted black and will contain an opening for each pixel. Openings will be large enough to not block any portion of the viewing cones of the LEDs.

Front face panels and front face border pieces will be coated with semi-gloss black polyvinylidene fluoride (PVDF) applied in accordance with American Architectural Manufacturers Association (AAMA 2605) which has an expected outdoor service life of 10 to 15 years.

Each face panel will have a single polycarbonate sheet containing UV inhibitors attached securely to the inside of the aluminum panel to cover all the pixel openings and sealed to prevent water and other elements from entering the DMS.

Face panels will be attached to each other using stainless steel hardware. Seams that separate adjacent panels will be sealed. Panels will not be welded or otherwise permanently mounted to the display cabinet.

Each LED display module will be mounted to the rear of the display’s front face panels using durable non-corrosive hardware. No tools will be required for module removal and replacement.

In wind, the front face will not distort in a manner that adversely affects message legibility.

LED Modules

Each LED driver board will be microprocessor-controlled and will communicate with the sign controller on a wire or fiber optic communication network using an addressable network protocol. The microprocessor will process commands from the sign controller to display data, perform diagnostic tests, and report pixel and diagnostic status.

LED pixels will be driven using pulse width modulation of the drive current to control display intensity. The drive current pulse will be modulated at a frequency high enough to provide flicker-free operation and at least 200 brightness levels.

The failure of an LED string or pixel will not cause the failure of any other LED string or pixel.

The DMS will contain LED display modules mounted adjacently in a two-dimensional array to form a continuous LED pixel matrix.

All LED modules will be manufactured and designed to IPC Standards

The distance between centers of adjacent pixels, both horizontal and vertically, will be 0.81 inches (20 mm).

Each display pixel will comprise red, green, and blue LEDs. Other pixel technologies, such as fiber optic, flip disk, combination flip disk-fiber optic, combination flip disk-LED, liquid crystal, LED lenses, and incandescent lamp will not be accepted.

Each pixel will contain the number of discrete LEDs needed to output white colored light at a luminous intensity of at least 12,400 candelas per square meter.

Pixels will be constructed with discrete LEDs manufactured by a reputable manufacturer such as Avago Technologies (formerly Agilent Technologies), Nichia Corporation, OSRAM, CREE or EOI.

All LEDs will be from the same manufacturer and of the same part number, except for the variations in the part number due to the intensity and color.

LEDs will be rated by the LED manufacturer to have a minimum lifetime of 100,000 hours of continuous operation while maintaining at least 50% of the original brightness.

Constant current LED driver integrated circuits will limit forward current to the manufacturer’s recommended forward current for 100,000-hour lifetime.

The LED manufacturer will sort LEDS into bins by color and light intensity. Each color of LEDs will be obtained from no more than two (2) consecutive color or intensity bins as defined by the LED manufacturer.

LEDs from the LED color and intensity bins will be distributed evenly throughout the sign and will be consistent from pixel to pixel.

LED packages will be fabricated from UV light resistant epoxy.

LEDs will have a nominal viewing cone of 30 degrees with a half-power angle of 15 degrees measured from the longitudinal axis of the LED. Viewing cone tolerances will be as specified in the LED manufacturer’s product specifications and will not exceed ± 5 degrees.

All exposed metal on both sides of each printed circuit board, except connector contacts, will be protected from water and humidity exposure by a thorough application of conformal coating.

The LED display will be constructed of multiple display modules placed adjacently in a two-dimensional matrix.

LED display module power and signal connections will be a quick-disconnect locking connector type. Removal of a display module from the DMS will not require a soldering operation.

Display modules and internal components will be removable and replaceable by a single technician.

Display modules will be environmentally sealed to an IP67 rating.

Addressing of each LED display module will be configured via the communication wiring harness and connector without on-board addressing jumpers or switches.

Mounting a display module upside-down or in another incorrect position within the display matrix will not be possible.

All display modules will be identical and interchangeable throughout the sign.

Removal or failure of any display module will not affect the operation or structural integrity of any other module or sign component.

Sensors

Three (3) electronic sensors that measure outdoor ambient light levels at the DMS site will be mounted in line with the display cabinet walls. Two of the sensors will be placed to measure ambient light levels striking the front and rear of the DMS. The third sensor will be mounted to the floor of the display cabinet and face the ground.

At least one (1) ambient temperature sensor will be mounted to the rear wall or bottom of the display cabinet such that it is never in direct sunlight.

The DMS will contain at least one (1) internal temperature sensor that measures the temperature of the air in the cabinet over the range of -40°F to +176°F.

The DMS will contain one (1) sensor that measures the relative humidity of the air inside the DMS cabinet over the range of 0 to 100%.

Sign Controller

Each DMS will be controlled and monitored by its own microprocessor-based sign controller not requiring continuous communication with external control software to perform most control functions.

The sign controller will mount in a standard EIA 19-inch (480 mm) equipment rack with a maximum 4U space requirement within the nearest ground-mounted communication hub cabinet.

The sign controller’s front panel will include a menu-driven architecture, keypad, and a graphical screen.

The sign controller will:

· perform diagnostic testing of system components including pixels, power systems, and sensors

· activate, create, preview, and delete messages stored in memory

· blank the sign

· start and stop scheduled messages

· configure display parameters, including display size and color technology

· configure date and time

· configure communications port settings and NTCIP options

· configure level of password protection per user

· select automatic or manual brightness mode of operation

The sign controller will natively support National Transportation Communications for ITS protocol (NTCIP) 1203 V03 without external protocol converter or translator devices.

The sign controller will activate a sign message when:

· an operator instructs a particular message to be activated using the front panel interface or external control software

· the internal time-based scheduler activates a message at a date and time previously configured using the control software

· an event activates a pre-configured message

The sign controller will display a message on the sign until:

· the scheduled message duration expires

· the sign controller receives a command to change the message

· the sign controller receives a command to blank the sign

· the schedule stored in the sign controller’s memory indicates that it is time to activate a different message

· an event triggers a different message

The sign controller will be able to assign a priority level to any message and override any non-priority message.

The sign controller will support changing or replacing preinstalled fonts from external control software.

The sign controller will automatically adjust LED brightness to match ambient light levels.

The sign controller will change the display brightness to one of at least 100 selectable levels of the display matrix manually via the front panel interface or external control software.

The sign controller will report sign brightness mode and level to the front panel interface and to the external control software.

The sign controller will have non-volatile electronically changeable memory that retains messages and schedules in memory for at least 30 days following a power loss.

The sign controller will contain a battery-backed-up computer-readable clock that is accurate to within one (1) minute per month and automatically adjusts for daylight savings time and leap year.

The sign controller will monitor and report the status of all light, temperature, and humidity sensors installed in the display cabinet.

The sign controller will monitor a temperature sensor on each LED display module and automatically shut down the module if the temperature exceeds a configurable threshold, which may be overridden for high priority or emergency messages.

The sign controller will monitor the open/closed status of the access door.

The sign controller will monitor the status of sign components and subsystems and report it via the front panel interface and via NTCIP to control software upon request.

The sign controller will monitor and display the currently active message, including graphics, in a WYSIWYG format.

Automatically and upon command from the front panel interface or external control software, the sign controller will test all the LED pixels without disrupting the message being displayed.

The sign controller will automatically shut down the LED modules to prevent damaging the LEDs if the measured internal cabinet air temperature exceeds a maximum temperature threshold.

The sign controller will automatically report via front panel interface and external control software the occurrence of events and subsystem failures, including over-temperature shutdown, controller restart, power loss, power system failure, door open, and communication loss.

The sign controller will provide cybersecurity measures, including password protection, to limit access to authorized users.

The sign controller will transmit and receive data packets to and from the DMS via dedicated fiber optic cables. This network will communicate with all sensors, drivers, and other devices utilizing a CAN (controller area network) bus network running throughout the DMS.

Data transferred will include pixel states, sensor values, and I/O readings from various devices, such as door sensors and power supply monitors. Pixel data will include the states to be displayed on the sign face as well as diagnostic data retrieved from the LED drivers.

The sign controller will control the LED drivers in a manner that causes the desired message to display on the DMS sign. At a minimum, the sign controller will support the following features as described in the DMS specification:

· selection of character fonts style

· horizontal alignment of text on the display, including left, center, and right justification

· vertical alignment of text on the display, including top, middle, and bottom justification

· adjusting the spacing horizontally between characters or vertically between lines of text

· alternating between pages of a multiple-page message

· display of graphic bitmaps of various sizes ranging to very small to the size of the entire DMS matrix

The sign controller will enable the DMS to display messages using the following types of effects:

· static message (the selected message is displayed continuously on the sign face until the sign controller blanks the sign or causes the display of another message)

· multiple-page message (at least 2 pages of information, each filling the entire pixel matrix, with user-programmable display times from 0.1 to 25.5 seconds, in increments of 0.1 seconds)

The sign controller will support the storage and use of at least twenty (20) font sets with which messages can be formatted and displayed. Each font will support up to 255 characters. All text font files will include the following characters:

· the letters “A” through “Z”, in both upper and lower case

· decimal digits “0” through “9”

· blank spaces

· eight (8) directional arrows

· punctuation marks, such as: . , ! ? – ‘ ’ “ ” : ;

· special characters, such as: # & * + / ( ) [ ] < > @

Upon command from either the front panel control interface or via NTCIP from remote control software, the sign controller will direct the LED modules to perform diagnostic tests of all their pixels. The controller will then collect and report the results of the pixel testing.

The sign controller will be able to automatically detect and report in real-time the on/off status of each of the display’s pixels without interfering with the display of data on the DMS face.

The sign controller will monitor and report the functional status of regulated DC power supplies located in the DMS by monitoring diagnostic outputs on the supplies. The controller will monitor the output voltage of each power supply and the status of each output. The power supply voltages will be measured, and the status will be indicated as pass or fail.

The sign controller will be able to automatically inform a maintenance operator (via the local LCD panel) and a central control system (via NTCIP communication) of the occurrence of important events and subsystem failures.

The sign controller will continuously monitor the display cabinet’s temperature sensors and will automatically shut down the DMS if the internal cabinet temperature exceeds a safety threshold.

If the temperature approaches the threshold the sign controller will reduce the brightness of the sign face. If the temperature continues to increase and exceeds that threshold, the sign controller will trigger a warning notification event and blank the face of the sign until the temperature begins to drop. As the temperature drops, the sign controller will gradually increase the brightness of the display face, eventually returning to full brightness.

The sign controller will employ an algorithm with hysteresis to control brightness to ensure that the display face does not visibly flicker as the temperature changes.

Electrical

The DMS will operate from a 120/240 VAC, 60Hz, single-phase power source, including neutral and earth ground (3 wire plus ground).

Operating input voltage range will be at least 90 to 264 VAC.

All power and communication cable conduit will enter the DMS via watertight connections.

The DMS will contain a power panel board and circuit breakers with short circuit ratings of 22,000 amps and 10,000 amps for the main and branch circuits, respectively.

The AC power feed for all equipment in the sign cabinet will be protected at the panel board by a parallel-connection surge suppresser rated for peak 100,000-ampere surge current, 40kA line-to-neutral, 40kA line-to-ground.

AC power demand will not exceed 5000 watts when sign controller and ventilation system are operational and 100% of display matrix LEDs are lit.

AC power demand will not exceed 1500 watts when sign controller and ventilation system are operational and 40% of display matrix LEDs are lit.

DMS and sign controller components will be 100% solid-state, except for the environmental control fans and thermostats. All high voltage electrical components (exceeding 24 VDC) will be UL (Underwriter’s Laboratory) listed and meet all local NEC codes applicable to DMS applications.

High-voltage components and circuits (120 VAC and greater) will be designed, wired, and color-coded per the National Electric Code.

Wiring for LED display module control, environmental control circuits, and other internal DMS components will be installed in the display cabinet in a neat and professional manner. Wiring will not impede the removal of display modules, power supplies, environmental control equipment, and other sign components. Wires will not contact or bend around sharp metal edges. All wiring will conform to the National Electrical Code, local ordinances, and local utility company rules.

All power, signal, and communication cables will be identified by durable labels securely attached near the cables’ termination.

All power, signal, and communication lines will be equipped with surge protection devices.

The DMS manufacturer will provide one earth ground lug that is electrically bonded to the display cabinet.

All bonding and grounding will be in accordance with the National Electrical Code and with the manufacturers’ instructions. Grounding and surge protection will be installed following the recommendations set forth by IEEE Std 1422, NFPA 780, and Motorola R56 which specify a design goal for ground resistance of 5 ohms or less for sensitive electrical equipment.

The presence of ambient radio signals and magnetic or electromagnetic interference, including those from power lines, transformers, and motors, will not impair the performance of the DMS system.

The DMS system will not radiate electromagnetic signals that adversely affect any other electronic device, including those located in vehicles passing underneath or otherwise near the DMS and its sign controller.

The display cabinet will contain timer-controlled lighting that meets requirements of NEAM TS4-2016 section 3.2.8.3 Nighttime Service Lighting.

The display cabinet will contain a utility outlet circuit consisting of at least three (3) 15-A NEMA 15-R, 120 VAC duplex outlets with ground-fault circuit interrupters. One outlet will be located at the end of display cabinet interior by the control equipment.

Internal Wiring

The display cabinet will contain redundant regulated switching power supplies to power all electronic sign components.

Pixel Drive Circuitry

The LED pixel display modules will be powered with auto-ranging regulated switching power supplies that convert the incoming AC to DC.

Each power supply will receive 120VAC power from a separate circuit on a separate circuit breaker, such that a single tripped breaker will not disconnect power from more than one supply.

The power supplies will be sufficient to maintain the appropriate LED display intensity throughout the entire operating input voltage range.

Maximum output power rating will be maintained over the temperature range of –30°F to +140°F.

Power supplies will be redundant and rated such that if one supply fails, the remaining supply(s) will be able to operate 100% of the pixels in that display region at 100% brightness when the internal DMS air temperature is +140°F (60°C) or less.

Power supplies used to power the LED pixel modules will be identical and interchangeable throughout the DMS.

Power supplies used to power the LED pixel modules will have an application of conformal coating to protect from the environmental elements and will be either UL listed or recognized.

Power supplies will automatically shut down and restart if the power supply overheats or one of the following output faults occurs: over-voltage, short circuit, or over-current

Control Software

The Contractor will provide manufacturer-supplied control software to fully operate the DMS in lieu of an agency-operated Advanced Traffic Management System.

The DMS manufacturer will provide a control software license key to prevent unauthorized or unlicensed copies of the software to be installed on non-agency computers or personal machines.

The control software will:

· operate on desktop and laptop computers with at least 1.5GHz processor, 1 GB RAM, and 2GB of free hard drive space.

· support Windows 10, Windows 11, and Windows Server 2016 operating systems with all critical updates installed.

· be written using Microsoft-certified software development tools

· support 32-bit and 64-bit processors and operating systems

· provide a user-friendly multi-color graphical user interface

· support at least 250 dynamic message signs

· support communications via any combination of dedicated hardwired serial network, fiber-optic network, dial-up telephone lines, leased phone lines, dialup cellular modem, IP cellular modem, spread spectrum radio, and Ethernet

· support control, monitoring, and diagnostic functions

· control DMS both remotely from a central location and locally at the DMS site using a laptop computer

· be accompanied by an easy-to-use software installation utility

· contain a context-sensitive online help system with documentation for each software feature

· comply fully with NTCIP communications protocols

The control software will require the use of usernames and passwords.

The control software will enable creation of usernames and passwords for up to 100 users.

The control software will enable definition of requirements for password lengths and alphanumeric combinations.

The control software will support at least four (4) distinct user authorization levels to control DMS, create and modify messages, configure control software, and modify DMS settings.

The control software will include a server module to handle DMS communication and store configuration data, messages, schedules, communications settings, DMS status, and other data.

The control software will include multiple client modules that issue requests to and receive responses from the server over any TCP/IP-based network, including LANs and WANs.

The control software client applications will enable:

· user access to system with username and password

· display of communications, system status, and diagnostics

· creation of DMS messages

· creating time and date schedules for activating messages

· system configuration and administration

The control software will allow users to organize DMSs into groups by region, roadway, or user-specified category.

The control software will display DMS in both list and graphical map formats.

The control software will list the following information about each DMS:

· DMS ID number

· DMS name

· message name or description of the message being displayed on the DMS

· date and time of last communication between the control software and the sign controller

· error and warning status, including pixel errors, power failures, communication error, etc.

· graphical representation (WYSIWYG) of current message displayed

The control software graphical map interface will include:

· configurable bitmaps to show some or all DMS geographically

· message name or description of message displayed on DMS

· icons for each sign located on the map

· icon color changes to indicate the status of the DMS

· date and time of last communication between the control software and the sign controller

· display of sign name when the mouse hovers over a DMS icon

· graphical representation of current message when the mouse hovers over a DMS icon

The control software will allow users to:

· send and activate stored messages from the libraries

· blank the display

· activate ad-hoc messages created immediately, not loaded from a library

· define and activate schedules

· retrieve messages from the sign

· perform diagnostics of subsystems, such as power supplies, sensors, climate control devices, etc.

· perform pixel testing and report coordinates of any failed pixels

The control software will be able to poll DMS at predefined intervals or time of day to retrieve and display the most recent status information.

The control software will enable creation of scenarios to automate a series of repeated actions including:

· sending and activating stored messages from the libraries

· blanking the display

· sending and activating schedules

· diagnostics of DMS subsystems

· tests of pixels

The control software will save scenarios to libraries where system operators may schedule or activate them through the graphical user interface.

The control software will be able to monitor and display the contents of any communications in progress with DMS.

The control software will be able to control any NTCIP-compatible DMS regardless of the manufacturer, with functionality limited to NTCIP standard MIB objects.

The control software will include a message editor and graphics editor that enable the operator to create, edit, name, and store sign message files.

The message editor will present a scaled image of the display matrix in a WYSIWYG format, including a complete and accurate representation of the display matrix type and the number of display pixels, while a new message is being created or an existing message is being edited.

The control software message editor will enable the operator to:

· enter, modify, remove, or insert text

· select font per character

· set flashing text and variable flashing rates per character

· insert special characters such as arrows

· select fonts ranging in size and boldness for improved legibility of message

· adjust interline spacing in number of pixels

· justify message horizontally including left, center, and right

· justify messages vertically including top, middle, and bottom

· make text scrollable per line, including direction and scroll rate

· change spacing between individual characters

· change text foreground and background color per character

· insert NTCIP standard real-time fields

The control software message editor will enable the operator to:

· compose messages at least 2 pages long

· set on and off times for each page

· check spelling

· adjust message priority status per message

· prevent a list of prohibited words from being used

· cut, copy, and paste

· undo and redo actions

· rearrange page order for multiple page messages

· duplicate pages

· preview a message as it would run on the display

· zoom in and out within the editing area

· list messages most recently edited for quick access

· support default options when creating new messages

The control software graphics editor will enable the operator to:

· insert text anywhere on the matrix display

· insert graphic images files into the message editing area

· move graphic text and images within the message editing area

· insert common MUTCD symbols into graphic images

· insert true type font text

· enable anti-aliasing of font text

· resize images

· layer images and text and change their order

· move shapes to the front or back

· insert shapes including lines, rectangles, ellipse, triangles, spheres, and diamonds

· control shape fill, line color, fill color, and brush width

· support at least 32K colors for full RGB color displays

· set time with AM/PM or am/pm

The control software will enable the operator to create a message library with the following functionality:

· create multiple levels of folders to store messages

· organize folders by sign type and size

· rename files and folders

· delete files and folders

· save messages for future use

· edit a saved message

· open an existing message and save it as a new message

The control software will enable the operator to create, delete, edit, and rename message schedules to run specific messages at pre-determined times and dates.

The control software will be able to schedule messages by:

· month of the year (January, February, etc.)

· day of the week (Monday, Tuesday, etc.)

· day of the month (1,2, ….31)

· time of the day

The control software schedule editor will contain a calendar to view schedules by week, month, or year.

The control software will be able to store schedule files in both the DMS control computer memory and the sign controller memory.

For each model of DMS the control software will support at least twenty (20) configurable fonts selectable from a library of at least twenty (20) fonts provided by the software vendor.

The control software will allow the operator to create new fonts or modify existing fonts by graphically editing each character pixel-by-pixel.

The control software will be able to download to the DMS any of the fonts provided by the software vendor or created or modified by the administrator.

The control software will log all significant system events, including:

· user login/logout

· communication failures

· configuration changes

· message and schedule activation or display blanking

· diagnostics test results

· warning events sent from the sign

· other system errors

The control software will log the following information for each system event:

· event ID number

· operator that initiated the event

· time and date the event occurred

· event description

· source of the event

· additional relevant data

The control software will enable the operator to view, sort by category, and print the event log file at any time.

The control software will allow authorized users to configure system parameters and functions including:

· sign models and individual signs

· communication networks

· NTCIP profiles to enable/disable MIB objects

· system error/warning alarms

· user security rights

· system maps and sign icon placement

· default system option settings

· default message parameters

· message priority settings

· prohibited word list

The control software will configure each sign with the following parameters:

· sign viewing area height and width (for full-matrix signs)

· color capabilities (amber, tricolor, full-color)

· site name

· DMS ID number

· network address

· communication parameters

· time zone and daylight savings time settings

The control software will configure the following communication network parameters:

· network type (direct serial, dial-up, Ethernet)

· communication port (i.e., COM4)

· baud rate (ranging from 1200 to 115,200)

· hardware handshaking

· NTCIP subnetwork and transport protocols

· communication retries and timeouts

· IP address and port

The control software will automatically use the following default settings during the creation of new message files:

· pixel spacing between adjacent lines of text

· pixel spacing between adjacent text characters

· display duration of a given message page

· beacon activation status

· effect to be applied to text

· message priority classification

· horizontal text justification supporting left, center, or right

· vertical text justification supporting top, middle, and bottom

· default font

· spell check on message save

· force text to uppercase

· disable scrolling

The control software will allow messages to be assigned a priority classification of:

· emergency

· high

· normal

· low

· minimal

The control software will allow a numeric priority range to be assigned to each priority classification, such that two different message files may be assigned the same classification, but within that classification, one message can be identified as higher priority.

Installation

Each DMS will be installed with on-site supervision of a qualified representative of the DMS manufacturer and SDDOT Intelligent Transportation Systems Program staff.

The Contractor will use the existing single pole structure to support the display cabinet in a center-mounted butterfly configuration.

Each DMS will attach to its support structure according to the DMS manufacturer’s specifications and instructions.

Communication

The Contractor will furnish and install a single-mode fiber optic communication cable from the sign controller to the display with the following specifications:

· 50.0/125 μm diameter

· LC-style connectors

· rated for indoor/outdoor use

· UL-rated

· PVC outer jacket

· tight buffer inner jacket

· operating temperature range: –40°F to +185°F

The sign controller will contain at least one (1) 10/100Base-T Ethernet communication port with RJ45 connector for communicating with an external control system.

Ethernet communication will be by NTCIP 2202 Internet transport profile and the NTCIP 2104 Ethernet subnetwork profile using TCP/IP and UDP/IP protocols.

NTCIP 2104 (Ethernet) networks will use a static IP address configurable via the front panel interface.

The Ethernet communication port will be protected with internally integrated surge protection between each signal line and ground.

All remote communication ports will be NTCIP-compatible.

The sign controller will be able to receive instructions from and provide information to a computer containing control software using the following communication modes:

· remotely via direct or dial-up communications with a remotely located computer

· locally via direct connection with a laptop computer that is connected directly to the sign controller using an RS232 null modem connection

The sign controller will contain at least three (3) RS232 communication ports that. support multiple communication interfaces, including direct null-modem, dial-up and leased-line modems, radio systems, cellular modems, and fiber optic modems.

Each RS232 port will support all typical serial baud rates from 1200 to 115,200 baud.

The sign controller will contain at least one (1) 10/100Base-T Ethernet communication port with a standard RJ45 connector.

The DMS controller addressing scheme will be configurable through the front panel user interface.

NTCIP 2101 (PMPP) networks will be configured with an address in the range 1 to 255 with a default address of 1. NTCIP 2104 (Ethernet) networks will use a static IP address. Both the IP address and subnet will be configurable.

The Ethernet communication ports in the sign controller will be protected with surge protection between each signal line and ground. This surge protection will be integrated internally within the sign controller.

NTCIP Conformance

The contractor will provide all the software, firmware, and services necessary to operate a dynamic message sign (DMS) system that fully complies with the specified NTCIP functional requirements, including incidental items that may have been inadvertently omitted.

Each NTCIP device covered by these specifications will implement the latest version of the standard listed in the NTCIP library at www.ntcip.org.

Subnetwork Profiles

Each Ethernet port will comply with NTCIP 2104 sub network profile.

The NTCIP device(s) may support additional Subnet Profiles at the manufacturer’s option. At any one time, only one subnet profile will be active on a given port of the NTCIP device. All response datagram packets will use the same transport profile used in the request. The NTCIP device will be configurable to allow a field technician to activate the desired subnet profile and will provide a visual indication of the currently selected subnet profile.

Transport Profiles

Each serial or modem…