ATTACHMENT B

DETAILED SCOPE OF WORK AND REQUIREMENTS

TRAFFIC SIGNAL CONTROL MODULAR CABINET

1.0 Information

1.1 Utah Department of Transportation (UDOT) is to be provided National Electrical Manufacturers Association (NEMA) TS2 Type 1 traffic signal control modular cabinet assemblies for operation of signalized intersections throughout the state.

1.2 UDOT’s standard cabinets will include traditionally incorporated items, such as a power supply, load switches, SDLC cables, BIUs, etc. in a typical and practical number as required for the majority of signalized intersections. However, these auxiliary devices, as well as other optional items identified throughout this Detailed Scope of Work and Requirements, will also be listed as individual bid items for purchase, which will allow UDOT to expand cabinet capability for the needs of large or unusual intersection designs.

2.0 General Requirements

This section is for general cabinet configuration information only. Refer to all sections for complete cabinet detail.

2.1 All NEMA TS2 Type 1 cabinets will be Size 6 and Size 6 Stretch (except as outlined in Section 10.0) with the following inclusions:

2.14.1 Twelve (12) dual-indication load switches.

2.14.2 One (1) flasher.

2.14.3 Four (4) flash transfer relays.

2.14.4 Seven (7) synchronous data link control (SDLC) cables.

2.14.5 Two (2) bus interface units (BIU).

2.14.6 One (1) plug and play detector rack and panel.

2.2 All auxiliary devices included with the cabinet shall be identical to those listed on the Cost Proposal Form.

2.3 All cabinets must be compatible with Econolite Cobalt version 32.62+, and Intelight MaxTime version 1.82+ signal controllers.

2.4 Provide landing terminals for all 4 standard NEMA preemption inputs on the plug and play detector panel.

2.5 Interior equipment support shall include two (2) full width shelves and one partial-width shelf. The lower full width shelf shall include a service drawer. There is no defined dimension on the width of the partial-width shelf. The partial- width shelf shall be of such a dimension as to fill the space between the left cabinet sidewall connection and the left edge of the Main Panel, while allowing the Main Panel to be lowered without obstruction.

2.6 Provide LEDs for all interior lighting.

2.7 Do not include a traffic signal controller. This item will be purchased on a separate contract and installed by UDOT.

2.8 Do not include a Malfunction Monitoring Unit (MMU). This item will be purchased separately within this contract and installed by UDOT.

2.9 Do not include a cabinet power supply. This item will be purchased separately within this contract and installed by UDOT.

2.10 All field terminal wiring shall be color coded by indication and independently labeled at the spade.

2.11 All MMU wiring at the field terminals shall be independently labeled at the spade.

2.12 Field terminals shall be wired with MMU wires to monitor pedestrian yellow channels.

2.13 Provide 8-port minimum SDLC hub.

2.14 Cabinet Configuration

2.14.1 SDLC hub location move to below lower full width shelf next to load switch bay on the right side cabinet wall for both stretch and size 6 cabinets. Nine (9) SDLC cables shall be supplied with each cabinet. All 9 cables shall be pre-installed in the hub for use with the controller, MMU, detector rack. Two (2) main panel BIUl's and four (4) spares located in the left back corner of lower full width shelf behind drawer 3’-foot lengths coil for each spare.

2.14.2 All SDLC cables shall be routed along the front of the shelves behind the lip of the shelve and coiled and clamped at the back side of the front of the shelf at the designated equipment locations with approximately 12" coils for the cables to be able to comfortably extend to the front of the shelf and plug into the necessary equipment face without forcibly bending the cable and without the cable hanging down below the shelf after the cable is connected.

2.14.3 12" inch cable coiled at the back side of the front edge of the upper full-width shelf at 6" inches from the left sidewall of shelf (for the detector rack BIU)

2.14.4 (4) cables at the back corner of the lower full width shelf at 36" inches coil, 0-6" inches from the back left sidewall (spares for radar detection or other devices)

2.14.5 18" inches from the right sidewall on the lower full width shelf leave a 12" inch coil with the controller cable and SDLC run on the back side of the front of the shelf.

2.14.6 (2) cables at the back of the lower full-width shelf above the two Main Panel BIU's.

2.14.7 6" inches from the right side wall on the lower full width shelf leave a 12" inch coil with the MMU cables and an SDLC run on the back side of the front of the shelf.

2.14.8 All cables shall not be cut to exact lengths. They shall be routed with additional length in the cable such that it shall be possible to disconnect various tie-off locations and allow the SDLC cable to reach other parts of the cabinet to allow flexibility in equipment placement.

2.14.9 For a size 6 cabinet, label locations as follows: From the right side-wall power supply label 6" inches from the right side of the upper most full width shelve. MMU label 6" inches from the right side of the lower most full width shelf. Controller label 18" inches from the right side of the lower most full width shelf.

2.14.10 For a stretch cabinet, label locations as follows: From the right side-wall power supply label 6" inches from the right side of the upper most full width shelf. MMU label 6" inches from the right side of the lower most full width shelf. Controller label 18" inches from the right side of the lower most full width shelf. Communication label 16" inches from the right side of the middle full width shelf.

3.0 Cabinet

3.1 UL Listed

3.2 At a minimum, the Size 6 cabinet will be 52-inches high, 44-inches wide, and 24- inches deep and the Size 6 Stretch cabinet will be 64-inches high, 44-inches wide, and 24- inches deep.

3.3 The cabinet shall be constructed with type 5052-H32 aluminum with a minimum 0.125-inch thickness.

3.4 Unless otherwise specified, the cabinet shall be supplied with a natural aluminum finish. Specialty finishes, such as those intended to allow for ease of graffiti removal, are not acceptable. Sufficient care shall be taken in handling to ensure that scratches are minimized. All surfaces shall be free from weld flash. Welds shall be smooth, neatly formed, and free from cracks, blowholes and other irregularities. All sharp edges shall be ground smooth.

3.5 Provide option for exterior cabinet paint. If painted cabinets are specified, the exterior shall be degreased and primed with a spray-applied iron phosphate coat, equivalent to a four-stage iron phosphate coat, prior to painting. The final coat shall consist of a powder coat paint (TGIC or equivalent) applied with a minimum thickness of 2 mils.

3.6 The cabinet shall be designed and manufactured with materials that will allow rigid mounting on a concrete pedestal. The cabinet must not flex on its mount.

3.7 The cabinet shall require 4 anchor bolts to properly secure the cabinet to its base, and shall have pre-cut holes at the appropriate, designed locations for the anchor bolts. The cabinet flange for securing the anchor bolts shall not protrude outward from the bottom of the cabinet.

3.10.0 Anchor bolt holes shall accommodate 1/2 inch diameter anchor bolts. Size 6 cabinets shall have four (4) anchor bolt holes at a spacing of 40 1/4" wide by 18 1/2" deep. Size 5 cabinets shall have two (2) anchor bolt holes centered along the cabinet width at a spacing of 12 3/8” deep.

3.8 The top of the cabinet shall incorporate a minimum 1-inch slope toward the rear to prevent rain accumulation.

3.9 All mounting screws within the cabinet shall be Phillips head with the allowable exception of the power connections on the Main Power Panel and the neutral and grounding busses.

3.10 All cabinets shall be supplied with a minimum of two easily removable, height- adjustable full-width shelves and one easily removable, height adjustable partial-width shelf manufactured with 5052-H32 aluminum.

3.10.1 Shelves shall be a minimum of 10 inches deep and have a minimum separation of 10 inches from the top of the cabinet and 12 inches from each other.

3.10.2 The front and back edges of the shelves shall have holes punched every 6 inches to accommodate tie-wrapping of cables/harnesses.

3.10.3 The rear edges of the shelves shall incorporate a minimum 1/2-inch lip to prevent equipment from sliding off the back. The top of the shelf edges shall be sanded and smoothed to remove any sharp edges or burs that may cut through cable sleeves or jackets or cause injury.

3.10.4 Provide minimum 2.5 inches of clearance between full-width shelves and back wall to allow for cable routing.

3.10.5 Provide minimum 2.5 inches of clearance between partial-width shelf and back wall except where back-wall attachment is required for proper support. A minimum clear area of 2.5 inches deep by 6 inches wide shall be available between the back wall and the back of the partial- width shelf to run cables and plugs through the clear area.

3.10.6 Provide perforations on all shelves for equipment venting. The size of the perforations should be small enough to prevent the feet of common equipment from getting caught in the perforations as the equipment is slid around on the shelves.

3.10.7 The lower full-width shelf shall include a service drawer with rear-hinged flip-top cover manufactured with 5052-H32 aluminum.

3.10.7.1 The drawer shall be mounted such that the left edge is between 5” and 7” from the left sidewall of the cabinet. The drawer shall be a minimum 16” wide and 13” deep and large enough for cabinet prints to fit inside, and to allow for a full-sized laptop computer to rest on the drawer when extended.

3.10.7.2 Do not affix any material to the drawer cover; bare metal only.

3.10.8 The partial-width shelf shall extend from the left sidewall of the cabinet, and shall be placed such that it does not interfere with any back-wall power strips, if installed.

3.10.8.1 Place the initial height of the partial-width shelf at 15 inches from the cabinet bottom.

3.10.9 Any screws exposed on the top surface of any shelf must be flush with the shelf.

3.10.10 Do not affix any labels on the front of shelves identifying placement locations of Controller, MMU, Power Supply, or Detector Rack.

3.11 Vertical “C” channels for mounting cabinet components:

3.11.1 A minimum of one pair of vertical "C" channels shall be mounted on the rear interior wall of the cabinet for mounting the cabinet back panel.

3.11.2 A minimum of two pairs of “C” channels shall be mounted to each interior sidewall of the cabinet. The rear pair will be used for mounting shelves, the front pair will be used for mounting the Main Power Panel, detector panels, and other equipment.

3.11.3 The channels shall accommodate spring mounted nuts or studs.

3.11.4 All mounting rails shall extend to within 7 inches or less of the top and bottom of the cabinet.

3.12 Main door:

3.12.1 A rain channel shall be incorporated into the design of the main door opening to prevent liquids from entering the enclosure.

3.12.2 The main door opening must be a minimum of 80 percent of the front surface of the cabinet. A stiffener plate shall be welded across the inside of the main door to prevent flexing.

3.12.3 The main door shall be equipped with a three-point latching mechanism.

3.12.4 The main door shall close against a weatherproof and dust-proof, closed-cell neoprene gasket seal. The gasket material shall be a minimum of 0.250 inches thick by 1.00 inch wide. The gasket shall be permanently bonded.

3.12.5 The handle mechanism on the exterior of the main door of the cabinet shall be fully manufactured from cast aluminum or stainless steel. The handle shall include a hasp for the attachment of an optional padlock. The cabinet door handle shall rotate counter-clockwise to open, and shall be pointed straight down when closed. The handle shall not extend beyond the perimeter of the main door at any time. The lock assembly shall be positioned so that the handle shall not cause any interference with the key when opening the cabinet door.

3.12.6 The main door hinge shall be a one-piece, continuous piano hinge with a stainless steel pin running the entire length of the door. The hinge shall be attached in one of two ways to prevent tampering:

13.12.6.1 When the main door is closed, no rivets or bolts are exposed.

13.12.6.2 By use of carriage bolts or similar tamper-proof mounting.

3.12.7 The main door shall include a mechanism capable of holding the door open at approximately 90, 145, and 165 degrees under windy conditions.

3.12.8 The main door shall be equipped with a Corbin tumbler lock number 1548-1 with standard Corbin Key #2 or exact equivalent with swivel-style keyhole cover. A minimum of two keys shall be supplied.

3.12.9 Do not provide an interior door mounted document sleeve. All documentation for the cabinet shall be provided within the shelf- mounted service drawer.

3.13 Police door-in-door:

3.13.1 The police door-in-door shall close against a weatherproof and dust- proof, closed-cell neoprene gasket seal. The gasket material shall be a minimum of 0.250 inches thick by 0.250 inches wide. The gasket shall be permanently bonded.

3.13.2 The police door-in-door shall be provided with a treasury type lock Corbin No. R357SGS or exact equivalent with keyhole cover and a minimum of one key.

3.13.3 The keyhole cover shall close automatically and not require manipulation to close.

3.13.4 The door-in-door shall prevent the ability to engage the switches inside with the door-in-door closed, either through an appropriately- sized keyhole or some other restriction.

3.14 Ventilation:

3.14.1 The lower section of the main cabinet door shall be equipped with a louvered air entrance. The air inlet shall be large enough to allow sufficient air flow per the rated fan capacity. Louvers must satisfy the NEMA rod entry test for 3R ventilated enclosures.

3.14.2 The roof of the cabinet shall incorporate an exhaust plenum with a vent screen. Perforations in the vent screen shall not exceed 0.125 inches in diameter. The exhaust plenum and vent screen should not be recessed on the exterior of the cabinet to avoid creating a haven for nesting insects.

3.14.3 A mesh, removable standard 12”x16” air filter shall be secured to the air entrance in a simple U-slot tray. The filter shall include an internal wire frame to maintain shape and fit snugly against the cabinet door wall and be held in place by spring or spring-loaded clip. No welded studs or wing nuts will be accepted for the filter support system.

3.14.4 All entrance holes besides the air filter entrance must have a permanently attached, tack-welded metal mesh on the interior of the cabinet to prevent the entry of insects, rodents, etc.

3.14.4.1 Refer to Section 7.0 “Auxiliary Cabinet Equipment” for fan and thermostat requirements.

4.0 Terminals and Facilities/Main Panel Design and Construction

4.1 The Main Panel shall be constructed from 5052-H32 brushed aluminum of 0.125 inches minimum thickness and installed so as to minimize flexing when plug-in components are installed.

4.2 Provide Main Panel with a mounting mechanism which allows easy access to all wiring on the rear of the panel without removing or adjusting any shelving, the Main Power Panel, or the cover on the Main Power Panel. Lowering of the Main Panel shall be performed without the use of hand tools. Complete removal shall be possible with the use of simple hand tools. Lowering of the Main Panel shall not cause any field termination connections or other wiring connections to contact the top of the cabinet foundation.

4.6.0 The Main Panel shall be mounted far enough to the right of the cabinet to allow space for a partial-width shelf to the left, while maintaining the ability to be lowered without obstruction from the partial- width shelf or from the Main Power Panel.

4.3 All wiring from the panel to the field terminals, including MMU wires, shall be spaded and mounted on the front of the panel for easy removal when required. No soldered connections will be allowed at the field terminals, front or back of the terminal.

4.4 All field terminals shall have an MMU wire landed to them by default, including pedestrian yellow channels and overlap channels.

4.5 DO NOT install a resistor panel for field output terminals. The resistor panel will remain an optional item to be UDOT-installed as required.

4.6 The terminals and facilities shall be available in the following configuration:

4.6.1 Sixteen (16) load switch sockets.

4.6.2 Six (6) flash transfer relay sockets.

4.6.3 One (1) flasher socket.

4.6.4 Two (2) BIU sockets.

4.6.5 One (1) socket for plug and play detector panel and rack.

4.7 Load switches and flash transfer relays:

4.7.1 All load switch and flash transfer relay socket reference designators shall be silk-screen labeled on the front and rear of the Main Panel to match drawing designations. Socket pins shall be marked for reference on the rear of the panel.

4.7.2 A maximum of eight load switch sockets may be positioned horizontally on the Main Panel. It is anticipated that two stacked rows of eight (8) sockets each will be used to meet the sixteen (16) socket requirement.

4.8 The Main Panel shall have all field wires landed on two rows of horizontally mounted terminal blocks. The lower terminal blocks shall be mounted on an angle (approximately 45 - 60 degrees) to allow for easy access and viewing.

4.8.1 If two (2) rows of terminals are used, the upper row shall correspond to load switch sockets 9-16 and shall be wired for the pedestrian (sockets 9-12) and overlap (sockets 13-16) field terminations. The lower row shall correspond to load switch sockets 1-8 and shall be reserved for phase one through phase eight vehicle indications.

4.8.2 Field termination wires for upper row shall be able to run behind, and not over the top of field terminations on the lower row.

4.8.3 The location of the field termination wires shall not obscure the conduits or the ability to pull cable through the conduits that will stub up from the top of the cabinet foundation. Refer to UDOT Standard Drawing SL 4A for conduit locations in the cabinet foundation. A copy of UDOT Standard Drawing SL 4A can be found at udot.utah.gov/go/standards.

4.9 All field terminal positions shall use open-spade connections. Terminal blocks using insertion holes for field wires will not be accepted. Ring spade connections on the cabinet wiring will also not be accepted.

4.10 All field output circuits shall be terminated on a non-fused barrier type terminal block with a minimum rating of 10 amps.

4.11 Provide capability to flash either the yellow or red indication on any vehicle movement (channels 1-8 and 13-16) and to change from one color indication to the other by use of a screwdriver.

4.12 Field terminal blocks shall be wired to use four positions per vehicle phase or overlap phase (green, yellow, red, flash). It shall not be necessary to de-buss field terminal blocks for flash programming.

4.13 The Main Panel shall contain at least one flasher socket (silk screen labeled) capable of operating a 15-amp, 2-pole, NEMA solid-state flasher. The flasher shall be supported by a bracket that extends at least half the flasher’s length.

4.14 One Resistor-Capacitor (RC) network shall be wired in parallel with each group of three flash-transfer relays and any other relay coils to suppress surge and arc when the coils open and close.

4.15 All logic-level, NEMA-controller and MMU input and output terminations on the Main Panel shall be permanently labeled with descriptive text at the termination. Reference numbering only will not be accepted. Cabinet prints shall fully identify the function of each terminal position.

4.16 Terminal blocks shall be provided on or adjacent to the Main Panel to provide access to the full suite of NEMA-defined controller I/O functions, including any spare or unassigned I/O functions. These terminals shall have a number 6-32 x 7/32 inch screw at a minimum. All terminals shall be fully accessible from the front of the cabinet for custom wiring and be capable of supporting a standard #6 spade connection.

4.17 All wiring from Main Panel to the field terminals, including MMU wires, shall be color-coded by indication (green, red, yellow, etc.) and all wires shall be independently labeled at the spade. All Main Panel wiring shall conform to the following wire size and color:

4.17.1 Green/Walk load switch output - brown wire - 14 gauge

4.17.2 Yellow load switch output - yellow wire - 14 gauge

4.17.3 Red/Don't Walk load switch - red wire output - 14 gauge

4.17.4 MMU (other than AC power) - violet wire - 22 gauge

4.17.5 Controller I/O - blue wire - 22 gauge

4.17.6 AC Line (power panel to - black wire main panel) - 8 / 10 gauge

4.17.7 AC Line (main panel) - black wire - 10 gauge

4.17.8 AC Neutral (power panel to - white wire main panel) - 8 / 10 gauge

4.17.9 AC Neutral (main panel) - white wire - 10 gauge

4.17.10 Earth ground (power panel) - green wire - 8 gauge

4.17.11 Logic ground - gray or white w/ trace wire - 22 gauge

4.17.12 Flash programming - Orange wire

4.17.13 Flasher terminal - Black wire (on red or yellow field terminal) - 14 gauge

4.18 All wiring 14 AWG and smaller shall conform to MIL-W-16878/1, type B/N, 600V, 19-strand tinned copper. The wire shall have a minimum of 0.010 inches thick PVC insulation with clear nylon jacket and rated to 105 degrees Celsius.

4.19 All wiring 12 AWG and larger shall have UL listed THHN/THWN 90 degrees Celsius, 600V, 0.020 inches thick PVC insulation and clear nylon jacketed.

4.20 Connecting cables shall be sleeved in a braided nylon mesh or poly-jacketed. The use of exposed interwoven cables will not be accepted. Each jacket shall contain only the group of wires going to a specific device to allow for removal of the device without having to cut the jacketing and segregate wires (i.e., wiring to a detector panel or rack). This may result in multiple jacketed cable groups traversing the same paths within the cabinet.

4.20.1 All equipment connecting cables shall be routed along the back edge of the shelves and coiled and clamped at the back of the shelf at the designated equipment locations with approximately 24-28 inch coils for the cable to be able to comfortably extend to the front of the shelf and plug into the necessary equipment face without forcibly bending the cable and without the cable hanging down below the shelf after the cable is connected.

4.20.2 Equipment connecting cable coil locations shall be tied at the following designated equipment locations, as measured from the left cabinet sidewall:

4.20.2.1 Cabinet power supply connecting cable coiled at the back of the upper full-width shelf at 42 inches.

4.20.2.2 Controller connecting cable coiled at the back of the lower full-width shelf at 34 inches.

4.20.2.3 MMU connecting cables coiled at the back of the lower full-width shelf at 41 inches.

4.20.3 All equipment connecting cables shall not be cut to exact lengths. They shall be routed with additional length in the cable such that it shall be possible to disconnect various tie-off locations and allow the equipment connecting cable to reach other parts of the cabinet to allow flexibility in equipment placement.

4.20.3.1 Do not kink or forcibly clamp any bends in connecting cables when tying off excess cable lengths.

4.20.4 Protect any loose connection ends of connecting cables during transport.

4.21 All Terminals and Facilities configurations shall be provided with BIU wiring assignments consistent with NEMA TS 2-2016 specifications.

4.22 Each SDLC communication cable connector shall be a 15-pin metal shell D subminiature type. Plastic connector ends are not acceptable. The cable shall be a shielded cable suitable for RS-485 communications.

4.23 All Main Panels shall be pre-wired for a Type-16 Malfunction Management Unit.

4.24 All wiring shall be neat in appearance. All cabinet wiring shall be continuous from its point of origin to its termination point. Butt type connections/splices are not acceptable.

4.25 All connecting cables and wire runs shall be secured by mechanical clamps. Self- adhesive type clamps are not acceptable.

4.26 The grounding system in the cabinet shall be divided into three separate circuits (AC Neutral, Earth Ground, and Logic Ground). These ground circuits shall be connected together at a single point as outlined in the NEMA TS 2 Standard.

4.27 The Main Panel shall incorporate a relay, designated as K1, to remove +24 VDC from the common side of the load switches when the intersection is placed into mechanical flash. The relay shall have a momentary pushbutton to apply power to the load switch inputs for ease of troubleshooting.

4.28 All pedestrian push button inputs from the field to the controller shall be opto- isolated through the BIU and operate at 12 VAC.

4.29 All wire size 16 AWG or smaller at solder joints shall be hooked or looped around the eyelet or terminal block post prior to soldering to ensure circuit integrity. Lap joint soldering is not acceptable.

5.0 Main Cabinet Power Panel Design and Construction

5.1 The power panel shall be connected into the Main Panel and be located on the lower right sidewall of the cabinet.

5.2 The power panel shall be wired to provide the necessary filtered power to the load switches, flasher(s), and power bus assembly.

5.3 The power components shall be equipped with a removable plastic front cover for technician protection. The design will allow a technician to access the main and auxiliary breakers, the front face of the line-side power connection, and the neutral and ground bus contained within the power panel without removing the protective front cover. Any holes in the protective front cover allowing access to the front face of the line-side power connection shall be large enough to allow a straight wire or probe insert, but small enough to prevent finger from inserting.

5.4 Main line-side power landings shall be sized to fit AWG 6 wire with standard screws.

5.5 The following components shall be included within the power panel:

5.5.1 A minimum of one (1) 20-amp unit mount feed through breaker for supply power to controller, MMU, signals, cabinet power supply and auxiliary panels. The breaker shall be at minimum a thermal magnetic type, U.L. listed for HACR service, with a minimum of 10,000 amp interrupting capacity. Snap-in breakers will not be allowed.

5.5.2 A minimum of one (1) 15-amp auxiliary breaker for supply power to the fan, light and utility outlet. Snap-in breaker will not be allowed.

5.5.2.1 Turning off the auxiliary breaker shall not cause the signal to go into flash.

5.5.3 A HESCO Model HE300-15 or exact approved equivalent surge arrester.

5.5.4 A 50 amp, 125 VAC radio interference line filter, HESCO model LF50B or approved equal.

5.5.4.1 A single Surge Protection Device (SPD) with integral filter in place of a separate SPD and radio interference line filter, a Citel Model # DS72US-120S/G-F- ASSM or approved equal, is an acceptable alternative.

5.5.5 A normally-open, 25-amp, Solid State Signal buss relay. The SSR shall be a Crydom Model # HA4825H or approved equal.

5.5.6 A minimum of one (1) 8-position neutral bus bar capable of connecting three #12 wires per position.

5.5.7 A minimum of one (1) 6-position ground bus bar capable of connecting three #12 wires per position.

5.5.8 A minimum of one (1) NEMA type 5-15R utility outlet.

5.6 Provide an additional 36 neutral bus bar positions outside of the power panel, 24 on the right side of the cabinet and 12 on the left side of the cabinet. (Note: UDOT allows only one wire per position.)

5.7 Provide an additional 24 ground bus bar positions outside of the power panel, 12 on the right side of the cabinet and 12 on the left side of the cabinet. (Note: UDOT allows only one wire per position.)

5.8 Provide two (2) permanently mounted power strips with six (6) NEMA 5-15R outlets each outside the power panel. Provide approximately 3” to 4” of space between outlets (center-to-center) to allow for oversized plug heads. Mount power strips on the back wall between the top and second full-width shelves, with the left side of power strip at approximately 2 inches from the left sidewall, for ease of access to auxiliary components that are either shelf-mounted or C- channel mounted on the left sidewall. The power strips shall be oriented horizontally with each plug face oriented vertically.

6.0 SDLC Hub Assembly

6.1 An SDLC Hub Assembly including a minimum of eight (8) D-Subminiature Female 15 pin (DB15) connectors that are wired in parallel shall be provided as either part of the power bus assembly or as a standalone assembly.

6.1.1 The SDLC hub assembly shall not have exposed terminals or solder points on the assembly. Any such exposed contact points must be covered/protected to prevent accidental shorting by contact with other cabinet equipment or technician tools.

6.1.2 Refer to Section 9.0 for SDLC cable connector details.

6.2 Install SDLC Hub Assembly between full-width shelves with the left edge of hub assembly at approximately 2 inches from the left sidewall, above the power strips.

7.0 Auxiliary Cabinet Equipment

7.1 Ventilation fans:

7.1.1 The cabinet shall be provided with two thermostatically controlled (adjustable between 55-160 degrees Fahrenheit) ventilation fans, equally spaced in the top of the cabinet exhaust plenum.

7.1.2 Fan plates shall be removable with the use of simple hand tools for serviceability.

7.1.3 Fans shall be a ball bearing type and shall be capable of drawing a minimum of 100 cubic feet of air per minute.

7.1.4 A single thermostat assembly shall run both fans.

7.1.5 Fan housing shall be easily removable and replaceable without requiring hand tools.

7.2 LED lighting:

7.2.1 A minimum 15-watt LED lamp mounted on a 14-18 inch flexible arm shall be included. The flexible arm shall be permanently mounted to the cabinet door. The lamp shall be switch controlled.

7.2.2 A separate LED cabinet lighting system shall be installed with one LED light bar on the cabinet ceiling, close to the front door, and another LED light bar on the underside of the lower full-width shelf, above the Main Panel, and designed to illuminate the internal structure of the cabinet. The system shall be either switch controlled or wired to a door-activated switch mounted near the top of the door.

7.2.3 Under-shelf lighting shall include a swivel adjustment to direct the light to favor the rear or front of the cabinet.

7.3 Door alarm switch: Provide a door switch to be used as an alarm to a central system that the cabinet door has been opened.

7.4 Cabinet prints: A minimum of two sets of complete and accurate cabinet drawings shall be supplied with each cabinet. Place drawings in the shelf-mounted service drawer.

Cabinet Switch Panel and Police Panel

8.1 A switch panel shall be mounted on the inside of the main door. The switch panel shall provide as a minimum the following:

8.1.1 SIGNAL ON/OFF SWITCH - In the OFF position, power shall be removed from signal heads in the intersection. The controller shall continue to operate. When in the OFF position, the MMU shall not conflict or require reset. Label switch settings as “SIGNAL ON” and “OFF”.

8.1.2 AUTO/FLASH SWITCH - When in the flash position, power shall be maintained to the controller and the intersection shall be placed in flash. The controller shall not be stop timed when in flash. Wired according to NEMA TS 2-2016 the MMU forces the controller to initiate the start-up sequence when exiting flash. Label switch settings as “AUTO” and “FLASH”.

8.1.3 STOP TIME SWITCH - When applied, the controller shall be stop timed in the current interval. Label switch settings as “NORMAL STOP TIME ON FAULT”, “RUN”, and “STOP TIME”.

8.1.4 CONTROL EQUIPMENT POWER ON/OFF - This switch shall control the AC power for the controller, MMU, and cabinet power supply. Label switch settings as “CONT EQUIP ON” and “OFF”.

8.2 The police door-in-door switch panel shall contain the following:

8.2.1 Switch #1: UTILITY/GENERATOR SWITCH – When in the UTILITY position, power shall be provided from the local utility. When in the GENERATOR position, power shall be provided from the connected generator. When in the OFF position, power shall be removed from the cabinet. Label switch settings as “UTILITY”, “OFF”, and “GENERATOR”

8.2.2 Switch #2: AUTO/FLASH SWITCH – When in the flash position, power shall be maintained to the controller and the intersection shall be placed in flash. The controller shall be stop timed when in flash. Wired according to NEMA TS 2-2016 the MMU forces the controller to initiate the start-up sequence when exiting flash. Label switch settings as “AUTO” and “FLASH”.

8.2.3 Switch #3: SIGNAL ON/OFF SWITCH - In the OFF position, power shall be removed from signal heads in the intersection. The controller shall continue to operate. When in the OFF position, the MMU shall not conflict or require reset. Label switch settings as “SIGNAL ON” and “OFF”.

8.2.4 Switch #4: AUTO/MANUAL SWITCH - Cabinet wiring shall include provisions for an AUTO/MANUAL switch and a momentary push button or hand cord. Label switch settings as “AUTO” and “MANUAL”.

8.2.5 Horizontal spacing between Switch #1 & #2 and between Switch #3 & #4 shall be consistent. Horizontal spacing between Switch #2 & #3 shall be increased to provide a noticeable difference from the spacing between the other switches.

8.3 All toggle type switches shall be heavy duty and rated 15 amps minimum. Single- or double-pole switches may be provided, as required.

8.4 Any exposed terminals or switch solder points not otherwise covered or protected within an enclosure shall be covered with a non-flexible shield to prevent accidental contact.

8.5 All switch functions must be permanently and clearly labeled. Do not use printed stickers.

9.0 Auxiliary Devices

9.1 Load Switches:

9.1.1 Load switches shall be solid state and shall conform to the requirements of Section 6.2 of the NEMA TS 2 Standard.

9.1.2 Signal load switches shall have a minimum rating of 5 amperes at 120 VAC for an LED module load.

9.1.3 The front of the load switch shall be provided with six indicators to show the input signal from the controller to the load switch and the output signal to the field wires.

9.1.4 Load switches shall be dedicated per phase. The use of load switches for other partial phases is not acceptable.

9.1.5 Twelve (12) load switches shall be supplied with each cabinet.

9.2 Flasher:

9.2.1 The flasher shall be solid state and shall conform to the requirements of section 6.3 of the NEMA TS 2 Standard.

9.2.2 Flashing of field circuits for the purpose of intersection flash shall be accomplished by a separate flasher.

9.2.3 The flasher shall be rated at 15 amperes, double pole with a nominal flash rate of 60 FPM.

9.3 Flash Transfer Relays:

9.3.1 All flash transfer relays shall meet the requirements of Section 6.4 of the NEMA TS 2 Standard.

9.3.2 The coil of the flash transfer relay must be de-energized for flash operation.

9.3.3 When energized, the relay shall have an LED or similar indication that illuminates to indicate power is applied.

9.3.4 Four (4) relays shall be supplied with each cabinet.

9.4 Bus Interface Units (BIU)

9.4.1 All BIUs shall meet the requirements of Section 8 of the NEMA TS 2 Standard.

9.4.2 Each BIU shall include power on, transmit and valid data indicators. All indicators shall be LEDs.

9.4.3 Each BIU socket shall have a hasp or drop-latch to prevent the BIU from unseating from its position.

9.4.4 BIUs must be compatible with Econolite Cobalt version 32.62+, and Intelight MaxTime version 1.82+ signal controllers. Such compatibility shall be demonstrated by the supplier through test cabinet operation at a UDOT facility.

9.4.5 Two (2) BIUs shall be supplied with each cabinet.

9.5 Synchronous Data Link Control (SDLC) cables

9.5.1 SDLC cable connectors shall be solid, metallic, AMP connectors or approved equivalent. Plastic connectors will not be accepted.

9.5.2 Connector attachment tabs must be metallic and permanently mounted to the AMP connector.

9.5.3 Seven (7) SDLC cables shall be supplied with each cabinet. All seven (7) cables shall be pre-installed in the Hub for use with the controller, MMU, detector rack, two (2) Main Panel BIUs, and two (2) spares.

9.5.4 All SDLC cables shall be routed along the back edge of the shelves and coiled and clamped at the back of the shelf at the designated equipment locations with approximately 24-28 inch coils for the cable to be able to comfortably extend to the front of the shelf and plug into the necessary equipment face without forcibly bending the cable and without the cable hanging down below the shelf after the cable is connected.

9.5.5 SDLC coil locations shall be tied at the following designated equipment locations, as measured from the left cabinet sidewall:

9.5.5.1 cable coiled at the back of the upper full-width shelf at 0-2 inches (for the detector rack BIU).

9.5.5.2 (2) cables at the back of the lower full-width shelf at 10 inches (spares for radar detection or other devices)

9.5.5.3 (1) cable at the back the lower full-width shelf at 18 inches (for the controller)

9.5.5.4 (2) cables at the back of the lower full-width shelf above the two Main Panel BIUs

9.5.5.5 (1) cable at the back of the lower full-width shelf at 41 inches (for the MMU)

9.5.6 All SDLC cables shall not be cut to exact lengths. They shall be routed with additional length in the cable such that it shall be possible to disconnect various tie-off locations and allow the SDLC cable to reach other parts of the cabinet to allow flexibility in equipment placement.

9.5.6.1 Do not kink or forcibly clamp any bends in SDLC cables when tying off excess cable lengths.

9.5.7 Protect any loose connection ends of SDLC cables during transport.

9.6 Cabinet Power Supply

9.6.1 The cabinet power supply shall meet the requirements of Section 5.3.5 of the NEMA TS 2 Standard.

9.6.2 The cabinet power supply shall provide LED indicators for the line frequency, 12 VDC, 12 VAC, and 24 VDC outputs.

9.6.3 The cabinet power supply shall provide (on the front panel) jack plugs for access to the +24 VDC for test purposes.

9.6.4 Power supply will be purchased separately from the cabinet assembly and installed by UDOT.

9.7 Plug and Play Detector Rack and Panel

9.7.1 Provide required socket for one (1) plug and play detector rack and panel system.

9.7.2 Provide one pre-installed detector rack and panel system with each cabinet.

9.7.3 Pre-installed detector rack and panel system shall have 10 two-position card slots for a total of 16 detector inputs and 4 preemption inputs.

9.7.4 Pre-installed detector rack shall be mounted on the upper full-length shelf with the left edge between 3” and 4” from the left sidewall.

9.7.5 The detector rack must be easily removable or mountable on the upper full-length shelf using a maximum of two (2) screws or bolts. Once installed, the rack must be affixed well enough to withstand the force of repeated card insertion and removal without shifting.

9.7.6 Detector panel shall have all four (4) standard NEMA preempt inputs, labeled and easily accessible, for landing field preemption wires.

9.7.7 Detector panel must have simple mounting procedure using provided C- channels on the cabinet sidewalls, and must be plug and play for installing them for or removing them from service.

9.7.8 Pre-installed rack and panel must have silkscreened labeling to identify detector and preemption landing points (panel), and detector and preemption numbering (rack).

9.8 Malfunction Monitoring Unit (MMU)

9.8.1 MMUs will be purchased separately from the cabinet assembly and installed by UDOT.

9.8.2 The following MMUs shall be available for installation:

9.8.2.1 Reno MMU2-1600GE Monitor with Ethernet

9.8.2.2 EDI MMU2-16LEip SmartMonitor LCD with Ethernet

9.9 Standard Exterior Generator Plug and Automatic Transfer Switch

9.9.1 As a manufacturer pre-wired installation, provide an exterior generator plug with an Automatic Transfer Switch (ATS).

9.9.2 Provide a 15-amp generator input DPDT on-off-on vertical toggle transfer switch. Locate the transfer switch on the police panel inside the police door-in-door.

9.9.3 Provide exterior flanged inlet NEMA 5-15P plug with spring-close weatherproof cover. Locate plug on lower front of cabinet below the door flange and close to the Main Power Panel.

9.10 Optional Resistor Panel for Field Output Terminals

9.10.1 As an optional accessory available to UDOT as needed, provide a 4- resistor panel, fully pre-assembled and ready for installation with adequate wire length to reach all field terminal points and a neutral bus bar.

9.10.2 Resistor panel shall be manufactured to allow for C-channel mounting to the sidewall of the cabinet.

9.11 Optional Cabinet Heater

9.11.1 As an optional accessory available to UDOT as needed, provide a 200W 120VAC cabinet heater with ability to attach to C-channel rails. Cabinet heater shall be equipped with a built-in thermostat. Thermostat range of 0 deg F to 100 deg F.

9.12 If the cabinet heater includes a fan that runs separately from the heating element, provide a separate thermostat or combination thermostat/hygrostat to control the heater fan.

10.0 Optional NEMA TS 2 Type 1 Size 5 Cabinet

10.1 Provide an option for a NEMA Size 5 cabinet meeting the specifications outlined in this document with the following adjustments:

10.1.1 Provide only twelve load switch sockets.

10.1.2 No option for a rear access door is required.

10.1.3 Provide only one (1) internally mounted power strip with six (6) outlets.

10.1.4 Provide C-channels for equipment mounting as feasible within the reduced cabinet space.

11.0 Optional Bids for Uninterruptable Power Supplies, Super Capacitors, and vendor installed UPS system bypass switch

11.1 Provide an option for a 48VDC Uninterruptable Power Supply (UPS)

11.2 Provide an option for Graphene-based Super Capacitor power modules

11.3 Provide an option for vendor installed UPS system bypass switch

12.0 Cabinet Testing

12.1 Vendor shall warrant that each cabinet assembly has been tested as a complete entity under signal load for a minimum of 8 hours.

12.2 Each cabinet assembly shall be delivered with a signed document detailing the cabinet final tests performed.

12.3 The cabinet shall be fully assembled and tested by the controller manufacturer or authorized local distributor prior to shipment to UDOT to ensure proper component integration and operation.

13.0 Other Requirements

13.1 Lead time for traffic signal control cabinets shall be a maximum 60 days from time of order to time of delivery.

13.2 Lead time for auxiliary devices shall be a maximum of 30 days from time of order to time of delivery.

13.3 Provide a minimum 1-year warranty from the date of delivery for all components. The supplier shall correct any defects at no cost to UDOT. Additionally, the supplier is responsible for shipping costs or on-site supplier technical services associated with defect repairs or defective component replacements.

END OF ATTACHMENT B DETAILED SCOPE OF WORK AND REQUIREMENTS

Attachment B Page 2 of 2