ROAD COMMISSION FOR OAKLAND COUNTY SPECIAL PROVISION FOR. SOLID STATE ACTUATED CONTROLLER AND CABINET January 2007 Page 1 of 38

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1 a. General Description ROAD COMMISSION FOR OAKLAND COUNTY Page 1 of 38 TRAFFIC SIGNAL CONTROLLER (SCATS Compatible) This specification describes an advanced traffic signal controller meeting the latest NEMA specifications, as well as providing advanced features for future requirements. The traffic signal controller should also be SCATS compatible. b. Required Standards Traffic signal controller shall meet or exceed all requirements of the NEMA TS specification. Equipment supplier shall provide a letter from an independent testing laboratory certifying controller compliance to the NEMA TS specification. c. Standard NEMA Configurations Two Input/Output configurations shall be provided. a) NEMA TS-2 Type 1 for serial connection to cabinet Bus Interface Unit b) NEMA TS-2 Type 2 for direct parallel connection to load switches and detectors d. Central Processor Unit (CPU) In addition to NEMA requirements, the CPU shall provide the following: a) Microwave OS-9 Operating System with runtime license b) Motorola microprocessor, 25 Mhz version c) 4 Megabytes minimum dynamic random-access memory (DRAM) d) 8 Megabytes minimum FLASH memory organized as a disk drive e) 512 Kilobytes minimum static random-access memory (SRAM) f) Time of Day (TOD) clock with hours, minutes, seconds, month, year and automatic daylight savings time adjustment. TOD may be implemented in the CPU via electronic circuitry, operating system software, or a combination. g) During power failures, the SRAM and TOD shall be powered by STANDBY voltage from the power supply. e. Power Supply In addition to NEMA requirements, the Power Supply shall provide the following: a) Line frequency Reference signal shall be generated by a crystal oscillator, which shall synchronize to the 60-Hz VAC incoming power line at 120 and 300

2 Page 2 of 38 degrees. A continuous square wave signal shall be +5 VDC amplitude, ms half-cycle pulse duration, and 50 +/- 1% duty cycle. The Line Frequency Reference shall compensate for missing pulses and line noise during normal operation. The Line Frequency Reference shall continue through 500 ms power interruptions. b) STANDBY voltage via super-capacitor for backup power during loss of service voltage shall be provided. Super-capacitor shall have a minimum of 15-farad nominal size. No batteries of any type are allowed. f. Keyboard and Display In addition to NEMA requirements, Keyboard and Display shall provide the following: a) Removable by pulling off, installed by pushing on, without use of tools b) Stowed extension cord to allow remote use of keyboard and display c) Emulation of terminal per Joint NEMA/AASHTO/ITE ATC Standard d) Key quantity and function per Joint NEMA/AASHTO/ITE ATC Standard e) Liquid Crystal Display (LCD) with 8 lines of 40 characters f) LCD contrast adjustment accomplished via the keypad, no contrast knob allowed. g) Light-emitting diode backlight for the LCD h) Audible electronic bell i) Connector compatible with C60 of Joint NEMA/AASHTO/ITE ATC Standard, with the addition of +5VDC supplied by the controller on C60, Pin 1 g. Communications In addition to NEMA requirements, the controller shall provide the following: a) Built-in 10 Base-T Ethernet with RJ-45 connector on controller front panel b) Built-in Internet Protocol (IP) address assigned by Institute of Electrical and Electronic Engineers (IEEE), one unique IP address for each controller c) Built-in Infrared (IR) wireless port compatible with Microsoft Windows for Pocket PC Infrared RAW mode. d) Built-in option card providing an RS232 interface from port 3 (SP1) suitable for connection to an external modem (i.e. with modem controls RTS/CST and DCD). The physical connection to the RS232C interface shall be via a 25 pin

3 Page 3 of 38 D connector on the front of the controller. This card shall allow the use of a standard FSK 1200 bps 4-wire modem if required. e) Built-in EIA-232 port for uploading and downloading applications software, as well as to update the operating system. f) Built-in C60 connector for use with removable Keyboard and Display, Personal Computer COM1 or Personal Digital Assistant (PDA). C60 protocol per Joint NEMA/AASHTO/ITE ATC standard. g) Built-in Internal Data Key Receptacle to program and read serial Data Keys. A Data Key shall be provided with enough capacity to store data used by the software application. The Data Key shall be removable and can be transferred to another controller. The Data Key shall be designed for harsh environments with large contacts that are wiped by the rotation of the key within the receptacle. The Data Key shall conform to Data Key Key Link serial data protocol. The Data Key receptacle shall be attached to NEMA Port 2. h. Controller Housing In addition to NEMA requirements, the controller housing shall provide the following: a) Seven slots with card guides for standard 3U size Versa Module Europe expansion modules. The expansion modules and mating back plane board in controller are optional, per Road Commission for Oakland County specification b) Two slots with card guides for standard Joint NEMA/AASHTO/ITE ATC modems. The modems and mating back plane board in the controller are optional, per Road Commission for Oakland County specification. c) Polycarbonate construction, except back panel, rear mounting tabs and power supply mounting plate shall be aluminum for electrical grounding. d) Built-in carrying handle e) Two adjustable front mounting feet, used to raise the front cables and vary the display viewing-angle. i. Required Documentations a) Each bidder shall furnish with their bid written certification that their controller has been fully tested and approved by an independent lab as meeting NEMA TS specifications. b) Each bidder shall furnish with their bid a full specification of the NEMA software they propose to supply with their controller.

4 Page 4 of 38 SPECIFICATIONS FOR FOUR OR SIXTEEN PHASE DIGITAL ACTUATED CONTROLLER MECHANISM a. Traffic Control The following specifications are the minimum requirements for the 16-phase NEMA actuated traffic signal controller. The NEMA actuated controller shall meet or exceed the Eagle EPAC 300 Model 50 series controller. Included are controls for SIXTEEN Vehicle Phases, and SIXTEEN Pedestrian Phases. Included are controls for FOUR Timing Rings. Each phase can be assigned to any ring with the user definition of Ring, Phase Next, and Concurrent Phases. Included are controls for SIXTEEN Overlaps. Each phase can be assigned to any overlap with the user definition of trailing green, yellow, and red timing when needed. Included are controls for EIGHTY Detectors. Any detector can be assigned as phase vehicle or pedestrian detector with Delay, Extend, and Switch capability, and assigned as System, Speed Trap, and Count Detector function. The controller shall be provided as a NEMA TS-2 Type 2 for direct parallel connection to load switches and detectors. Included is the ability to use the Type 2 Controller Unit Phase Omit, Phase Ped Omit, and Phase Hold as detector inputs via alternate ABC connector I/O modes. Included is the ability to assign the Type 2 Controller Unit Signal Driver Outputs to any pin set (i.e., Overlap E outputs to Ped 1 output pins). Also included is the ability to use Phase On, Phase Next, and Phase Check for signal driver outputs via alternate ABC connector I/O modes. Included are Adaptive Maximum Routines enabled via Time Base. This control shall provide up to three separate Step values to cause the running maximum to increase or decrease smoothly based on current traffic conditions. Separate Dynamic Maximum Parameters shall be available for each Step value. The Dynamic Maximum Value can be either larger or smaller than the normal maximum limit. Included are Adaptive Protected/Permissive Routines. These measure the volume of left turn vehicle traffic and available gap windows in the conflicting through-vehicle traffic to determine whether the Left Turn should operate protected or permissive.

5 Page 5 of 38 Included are Adaptive Variable Passage Time and Maximum Routines. This control shall provide up to three separate values to increase or decrease the default passage time enabled via Time Base. Included is Permissive Red Flash Routine enabled via Time Base. This control shall provide an in-cycle red flash during the thru green phase(s). Traffic Control activity shall be monitored on a Ring Timers Status display that denotes: a) Up to six active timers and/or states per ring for two rings simultaneously b) Coord Control Source/Pattern/Cycle Counter c) Phase On/Next Phase Vehicle Call/Recall d) Phase Ped Call/Recall e) Phase Hold/Omit/Ped Omit b. Coordination Internal Coordination is a highly flexible routine operating within the EPAC300 Series Controller Unit. Included are SIXTEEN Timing Plans (one for each Dial/Split combination) with three offsets in each. Each Timing Plan shall provide a separate Cycle Timing, Phase Split Timing and Phase Modes. Included are SIX Operational Modes. An operational mode can be selected for continual operation or to operate only with a specific pattern (Dial/Split/Offset). Operational modes available shall be as follows: a) Permissive Mode provides non-actuated coord phase vehicle and pedestrian modes with permissive windows opened phase-by-phase to the non-coord phases. b) Yield Mode provides non-actuated coord phase vehicle and pedestrian modes with a single permissive window for all non-coord phases. c) Permissive Yield Mode provides for actuated coord phase vehicle and pedestrian modes with permissive windows opened phase-by-phase to the non-coord phases. Additionally, the coord phase vehicle can extend its green time at the beginning of the first permissive window.

6 Page 6 of 38 d) Permissive Omit Mode provides operation similar to Permissive Yield except that the coord phase, once terminated, is prevented from occurring prior to the end of the last permissive. e) Sequential Omit Mode provides operation similar to Permissive Yield except the permissive is a phase-by-phase sliding window (only one phase in a ring will be allowed service at any time). f) Full Actuated Mode provides operation similar to Permissive Yield except that any phase can be serviced and re-serviced in the standard sequence following the first permissive and through the last permissive. Included are FOUR Correction Modes to determine the method in which the coordination will bring the background cycle in sync with the system cycle. Included are THREE Maximum Modes to determine whether Maximum 1, Maximum 2, or Maximum Inhibit will be effective when coordination is in control. Included are TWO Force Modes to determine whether the non-coord phase force will be based on a position in the background cycle or on the Timing Plan Phase Split Time. Included are TWO Offset Position Modes to determine whether the Offset is calculated based on the Start or End of the first coord phase Green. Included is a Local Traffic Responsive Override to enable selection of patterns based on computed volume plus occupancy of selected detectors. Included is a Virtual Split Routine on all operational modes that provides for actuated coord phase vehicle and pedestrian modes. This control provides for a period of time of each cycle that is distributed to the Coord Phase(s) or non-coord phases, based on Coord Phase vehicle traffic activity. Coordination activity shall be monitored on a Coord Active Status display which denotes: a) Operation, Correction, Maximum, and Force Mode b) Cycle Time Parameter, Countdown, and Adjustment c) Offset Time Parameter, Current, and Adjustment d) Phase Time Parameter, Countdown, Adjustment, Mode

7 Page 7 of 38 c. Time Base Control Internal Time Base Control is a highly flexible routine operating within the EPAC300 Series Controller Unit. Included are automatic adjustments for leap year and daylight savings changes. Included are 250 Events for the control of Pattern Selection, Free, Flash, Dimming, Detector Diagnostic Parameters, System Detector Logging, 3 Auxiliary Functions, 8 Special Functions, and 16 Traffic Functions. Included are 99 Day Programs for programming events to occur within the weekly programs and for exception days. Included are 10 Week Programs for programming events to occur within different weekly schedules. Time Base Control provides programming of exception days and weekly programs to begin over a year in advance in the familiar Month/Day/Year form. Time Base activity can be monitored on a Time Base Status display that denotes: Day, Date, and Time Active Day and Week Program Active Pattern Active Auxiliary, Special, and Traffic Function d. Preemption Internal Preemption is a highly flexible routine operating within the EPAC300 Series Controller Unit. Included are SIX Preempt routines providing complete signal control. Each routine provides the capability to program the state of the outputs for two Green Intervals. Outputs which are not normally on can be activated during preempt. The capability exists for limited cycling during the preempt dwell. The capability exists to link multiple routines to form more complex routines. Delay, Extend Duration, Max Call, and Lock Out timings exist for each routine. Included are SIX Priority Routines providing complete phase control. Each routine provides the capability to program the phase(s) that are to be active in the dwell state. Delay, Extend Duration, Max Call, and Lock Out timings exist for each routine. Preempt activity can be monitored on a Preempt Status display which denotes:

8 e. Reports ROAD COMMISSION FOR OAKLAND COUNTY Page 8 of 38 a) Preempt-In Control, Interval Timing, and Interval Countdown b) Individual Preempt Status and Timing c) Individual Priority Status and Timing The EPAC300 Series Controller Unit provides an extensive report capability. Each report entry includes the Date and Time of occurrence. Included is a Local Alarm Log with the capacity to store 120 entries. Over 100 different events can be stored in this log. Included is a Comm Fault Log with the capacity to store 60 events. Fourteen different communications type faults can be stored in this log. Included is a Detector Fault Log with the capacity to store 60 events. Ten different detector diagnostic type events can be stored in this log. Included is a System Detector Log with the capacity to store 96 events. Each event will note the raw volume, raw occupancy, average volume, and average occupancy on up to 8 detectors. Included is a MOE Log with the capacity to store 24 events. Each event will note the Volume, Stops, Delay, and Green utilization on each phase for the active pattern. Included is a Speed Log with the capacity to store 24 events. Each event will note the percentage for vehicles Below, Within, and Above a user defined speed for the active pattern. Included is a Volume Count Log with the capacity to store 72 events. Each event will note the volume counts recorded by up to 24 detectors. Included is a message report that allows up to 6 lines of 40 characters. f. Diagnostics A Resident Diagnostic Program is standard in the EPAC300 Series Controller Unit. In addition to the extensive displays to aid in intersection setup, monitoring, and operation, the resident diagnostic program enhances maintenance and troubleshooting. Many of the diagnostic routines execute automatically and continually, verifying unit integrity. Diagnostic analysis is displayed or logged in English.

9 Page 9 of 38 Automatic Diagnostics begin at power up and continue as long as the unit is operating. Power Up Diagnostics include PROM, RAM, EEPROM, Real-Time Clock, and Processor checks. Failures will result in the unit not enabling the Fault Monitor or Voltage Monitor outputs while the display shows messages such as PROM TEST: FAILED. Monitor Compatibility Programming Diagnostics include verification that the Monitor Program Card Programming is consistent with Controller Unit Sequence. Monitor Field Status Diagnostics include a redundant test for conflicting channels by being active simultaneously. Cycling Diagnostics include verification that phases with serviceable calls are receiving service in a timely manner. Detector Diagnostics include verification that detector activity is within thresholds defined by the user. Included is a Port 1 Message Display. This status display will indicate the status of each bit in the requested message. Included is a Port 2 Comm Status Display. This status display will indicate the port settings (i.e., 1200, 8N1), line status, carrier status, when transmitting, and when receiving. Included is a Port 3 Comm Status Display. This display is a duplicate of the Port 3 display. Included is a hardware Input Status Display. This display will indicate the status of every hardware input (i.e., On/Off). Included is a hardware Output Status Display. This display will indicate the status of every hardware output (i.e., On/Off.) Other features of the resident diagnostics program are available on user request, and when combined with an input/output monitor provide total indication of unit operation. For trend analysis, the failures are logged with date and time and remain available for display as needed.

10 Page 10 of 38 g. Security The controller unit offers a user specified security code entry before data can be altered. This security code entry is never required in order to view any parameter. The controller unit can disable security code requirements for perpetual access. Specifications for Size M, Size P44-12 and Size P44-16 NEMA Cabinets And Terminal Facilities Section I Traffic Controller Unit 1.0 Scope The purpose of this section is to describe the minimum acceptable design and operating requirements for a solid state size M, size P44-12 and size P44-16 NEMA cabinet, back panel and signal monitor and other signal control cabinet components. 1.1 Definitions Current NEMA Standards for TS-1 shall apply. 1.2 Interface Standards The controller backpanel unit shall provide an input-output to meet the following requirements Electrical Limits Current NEMA Standards for TS-1 shall apply Inputs and Number of Terminals Current NEMA Standards for TS-1 shall apply Outputs and Number of Terminals Current NEMA Standards for TS-1 shall apply Connectors and Connections Current NEMA Standards for TS-1 shall apply.

11 Page 11 of 38 Section 2 Traffic Control Cabinet 2.0 Scope This section defines the minimum acceptable requirements for a series of cabinets, which differ in size, to house traffic signal controller units and related devices. The particular size of traffic control equipment used at the intersection shall be as shown on the bid form. 2.1 Outline Dimensions All traffic control cabinets dimensions are in inches. These dimensions are outside dimensions exclusive of hinges, handles, overhang(s), vent housing, and adapters. Cabinet heights are measured to the lowest point of the top of the surface of the cabinet. The combined overhangs of the four sides of the cabinet shall not exceed 4 inches Pole/Base Mounted "M" Cabinet The cabinet shall meet or exceed Nema specification 3R. The cabinet shall be a Nema size "M" with a nominal size of 51" x 30" x 18", constructed and fabricated from inch type 5052-h32 vinyl-coated, mill finished, aluminum utilizing intermittently welded construction, weather proofed with silicone sealant. Internal attaching components include 4 adjustable "C" channels (2 per side) and 2 slotted rails having a inch diameter hole at the base of each slot. The slots (plus bottom holes) are to be spaced 0.5 inches center to center. There shall be from 2.5 inches to 8.5 inches inch diameter holes so as to allow the rear panel to pivot. There shall be from 8.5 inches to 42.5 inches inch slots so as to allow the top part of the rear panel to be detached from the rails for maintenance and inspection. The rails are to be placed so that the right edge of the rear panel is 5 inches +/-0.25 inch from the right side of the cabinet. The placement of the rails is such that when the rear panel is dropped pivoting on its axis, it is done so without any interference. The cabinet shall have a base having two slots with 1 inch diameter, which shall be located 15 inches in from both sides of the cabinet, and located 1-1/2 inches in from the front and 1-1/2 inches in from the rear, having a front-to-back, center-to-center, distance of 15 inches. The cabinet shall have two reinforcing plates centered located one each near the top and bottom of the cabinet.

12 Page 12 of 38 The cabinet shall be manufactured so as to prevent the accumulation of water on its top surface. The door opening is to be single flanged on the sides and bottom, and doubleflanged on the top to prevent water drops when the door is open. There shall be provisions for mounting a Nema specified fan for forced-air cooling. Exhaust outlet openings are provided under the roof over-hang. The cabinet door is to have three point locking mechanism configured with a corbin #2 lock with 2 keys supplied. The cabinet door is to have 0.75 inch stainless steel outward turning handle with provisions for padlocking. The cabinet shall have provided two shelves Pole Mounted size "M" Cabinet Cabinets intended for side of pole mounting shall be supplied with a lower plate and hardware so as to completely cover the bottom exposed area of the cabinet. The hardware that fastens the lower plate shall be tamper resistant so that the tightening or removal of the lower plate can only be accomplished from inside the cabinet. (Plate & hardware to be purchased separately) The cabinet shall be provided with the necessary pole adapter, exclusive of lag bolts and steel banding, to permit mounting to a 4.5 inch diameter or larger pole. The adapter shall accommodate lag bolts up to 3/8 inch and steel banding up to 1 inch side. The adapter shall have provisions for two holes spaced horizontally, which will have a center-to center distance of 3-1/2 inches Base Mounted size "M" Cabinet The base mounted version of the size "M" cabinet shall have provided 2 galvanized 3/4 inch anchor bolts which shall be 18 inches in length. There shall be a suitable length of thread on one end and a suitable "L" bend at the other end. (Anchor bolts to be sold separately) Base Mounted size P44-12 or size P44-16 Cabinet All of the cabinet specifications found in section 2.1 & apply to the size P44-12 and size P44-16 cabinets, exceptions are as follows: The size P44-12 and size P44-16 cabinet dimensions shall be 55" x 44" x 26".

13 Page 13 of 38 The internal attaching components include six adjustable "C" mounting channels (3 per side), and 3 slotted rails on the rear wall for attaching equipment panels. The slotted rail specification is the same as in section The base shall be so constructed that it can be mounted on a 32 inch deep by 48 inch wide foundation. The bottom pattern for base mounting is to form a rectangle with 1 inch x 2 inch slots at the corners, 2 inch dimension of the corner slots going from front-toback, the 1 inch dimension going side-to-side. The dimension of the rectangle with the slots is to have one side that is 41-3/4 inches and have another side that is 18-1/2 inches. 2.3 Material The traffic control cabinet shall be constructed of aluminum alloy. The aluminum material shall be a minimum of 1/8-inch (0.125-inch) alloy sheet, ASTM No H32 or equivalent. 2.4 Finish and Surface Preparation The cabinet shall not be painted. 2.5 Top Surface Construction The cabinet shall be manufactured so as to prevent the accumulation of water on its top surface. 2.6 Doors Main Cabinet Door The cabinet shall have a main door which permits access to all equipment within the cabinet. Doors shall be hinged on the right side of the cabinet as viewed from the outside facing the cabinet door opening Hinges pins. All cabinet doors shall incorporate a piano type hinge utilizing stainless steel hinge Door Stop The cabinet door shall be provided with a door stop which holds the door open as a minimum 90 degrees and 180 degrees (+/- 20 degrees).

14 Page 14 of Door Opening The main door opening of all cabinets shall be at least 80 percent of the area of the side which the door closes, exclusive of the area of plenums Switch Compartment A hinged switch compartment door shall be mounted to the outside of the main cabinet door. The door shall permit access to a switch panel but shall not allow access to exposed electrical terminals or other equipment within the cabinet. In order to allow for the switch controls and storing of the manual control cord, the switch compartment with the door closed shall have minimum internal dimensions of 3.5 inches high, 7.5 inches wide, and 2 inches deep. Additionally, the volume shall not be less than 70 cubic inches. Switch compartment doors shall be equipped with a lock, which can be operated by a police key, Corbin Type Blank 04266, or equivalent. A minimum of two keys shall be included for the switch compartment of each cabinet. 2.7 Shelves The cabinet shall be provided with two shelves for supporting the control equipment. The shelves shall be at least 10 inches in depth. All cabinets shall have a provision for positioning shelves to within 12 inches of the bottom of the cabinet and to within 6 inches of the top of the cabinet in increments not more than 1/2-inch. Size "M" cabinet shall be delivered with the bottom shelf mounted 24" from the bottom. The top shelf shall be delivered with the shelf position at 40" from the bottom. Size P44-12 and size P44-16 cabinets shall be delivered with the bottom shelf mounted at 29" from the bottom of the cabinet. The top shelf shall be mounted at 45" from the bottom of the cabinet. 2.8 Ventilation System All cabinets shall incorporate a ventilation system so as to provide for the circulation of external air through the enclosure to remove excess heat, fumes, or vapors.

15 Page 15 of 38 Forced ventilation is required; each cabinet shall be equipped with an electric fan each with a capacity of at least 100 cubic feet of air per minute Fan The fan shall be installed so that it operates in the filtered incoming air stream so as not to create a negative pressure within the cabinet relative to its outside environment. All fans shall be equipped with a guard which inhibits a user from making contact with the blades of the fan. Size M cabinets shall have a quantity of 1 fan. Size P44-12 and size P44-16 cabinets shall have a quantity of 2 fans Fan Controls All cabinets shall have a device to control the operation of the fan(s). The device switch-on point shall be manually adjustable at least in the range from 80 degree F to 120 degree F. The device shall have a differential between its switch-on point and its switch-off point. This differential shall not be greater than 25 degree F. The device shall be located in the inside of the top of the cabinet not lower than 6 inches from the top of the cabinet Filter The cabinet shall be equipped with a device to filter the incoming air. The cabinet shall be provided with louvered vents in the main door with a replaceable air filter having a width of 16 inches, a height of 12 inches, and a thickness of 1 inch. Section 3 Terminal Facility 3.0 Scope This section defines the minimum acceptable requirements for terminal facilities to interconnect traffic signal controller units and related devices within a traffic control cabinet. 3.1 Mechanical Construction The terminal facility shall conform to the following mechanical requirements Terminal Identification

16 Page 16 of 38 All terminals shall be permanently identified in accordance with the cabinet wiring diagram. Where through-panel terminal blocks are used, both sides of the panel shall have the terminals properly identified with the terminal position number. Identification shall be permanently attached and as close as possible to the terminal strip and shall not be affixed to any part which is easily removable from the terminal block panel. Each input or output terminated on a terminal block shall be identified on the front of the panel by position number and function terminology (e.g., PH 1 Red, Ph 2 Hold, etc.). The same identification must be used consistently on the cabinet wiring diagram Component Identification All components which make up the basic terminal facility shall be permanently identified in accordance with the cabinet wiring diagram. The following components are considered part of the basic terminal facility: a.) Load Switch Sockets. b.) Flash Transfer Relay Sockets. c.) Flasher Socket. d.) Main and Auxiliary Circuit Breakers. e.) Radio Interference Suppressor. f.) Mercury Signal Power Relay. g.) Power Terminal Bus Bars. Where through-panel components are used, both sides of the panel shall have the components properly identified by relative symbols (e.g. FRI, LS1, etc.). Identification shall be permanently attached and as close to the component as possible and shall not be affixed to any part which is easily removable from the panel. Each component shall be identified on the front of the panel by symbol and function terminology (e.g., LF1 Filter, BR1 Signal Bus, etc.) Field Connection Identification In addition to the terminal identification required in the paragraphs above, provisions shall be made that each group of R, Y, G, etc., field signal hook-up or detector hook-up terminals may be identified by the phase number or signal Load Switch and Flasher Support

17 Page 17 of 38 Load switch and flasher bases shall be so designed and constructed as to receive all such devices which may be manufactured to the maximum size requirements permitted under the Current NEMA Standards for TS-1. All supports shall be provided so that, as a minimum, they are supporting the flasher and load switch of the maximum size at some point(s) between 3 inches (8cm) and 7 inches (18cm) from the panel surface. At least 90 percent of the area beneath the load switch or flasher shall be open to allow for the free flow of air across the load switches or flasher. There shall be no obstruction within 1 inch (3cm) above or below the units within the open area Load Switch, Flasher, and Flasher Transfer Positions Wired load switch, flasher and flash transfer relay sockets shall be provided in the quantities listed below: Cabinet Controller Load Switch Flash Xfer Flasher M NEMA 4 Ph P44-12 NEMA 8 Ph P44-16 NEMA 16 Ph The flasher socket shall be wired for a Type 3 solid state flasher conforming to Current NEMA Standards for TS-1. Flashing of even numbered load switch output indications shall be placed on one circuit and flashing for odd numbered load switch output indications shall be placed on the other circuit. It shall be possible to flash either the amber or red indication on any load switch output. It shall be possible to flash the green circuit on the P44-12 and P44-16 cabinets for field terminal attachment positions 9, 10, 11 and 12. It shall be possible to easily change the flash indication from the front side of the panel using simple tools without the need to unsolder or re-solder connections. The load switch sockets shall be wired for triple-signal load switches conforming to Current NEMA Standards for TS-1. In the size M cabinet load bay, all load switch driver outputs coming out of the controller unit shall be on separate terminal points from the respective inputs to the load switches. (For the size M, size P44-12 and size P44-16 cabinet load bays, all load switch outputs, flash transfer relay contacts and flasher outputs shall be accessible from the front side of the panel for programming flash colors and monitor input assignments).

18 3.1.6 Terminal Blocks ROAD COMMISSION FOR OAKLAND COUNTY Page 18 of 38 Terminal blocks shall have mechanical characteristics to properly support the wiring connected without warping the terminal block. The threaded portion of the terminal block shall be stainless steel metal. The material used shall be compatible with copper wire Field Terminal Blocks Field terminal blocks for all inputs and outputs for a fully expanded controller shall be included. These blocks shall be either single terminal type with through-panel connection on the rear side of the mounting panel or double binder head screw terminals. Either type of terminal block used shall be of the correct ampacity for the application. Minimum acceptable ratings are 30 amperes, 300 volts, with 8-32x5/16 binder head screws Control Terminal Blocks Control terminal blocks for inputs and outputs of the controller unit, monitor unit, flash transfer relays, load switches, etc., shall be included. These blocks shall be either single terminal type with through-panel connections or double binder head screw terminals. Either type of terminal block used shall be of the correct ampacity for the application. Minimum acceptable ratings are 15 amperes, 250 volts, with 6-32x1/4 pan or binder head screws. The control terminal block wiring shall provide groupings of functions based on probable interconnect (bussing) for normal operation rather than based on the source of the wiring (e.g., controller, monitor, etc.). The above is to allow for easy reprogramming or isolation for trouble shooting purposes Controller Unit and Monitor Unit Harnesses The controller unit and monitor harnesses shall be neatly arranged and provided with the flexibility for the connectors to reach at least 40 inches (102cm) from the top of the terminal block panel which shall be mounted directly below the controller unit shelf. Terminal positions must be provided, completely wired and neatly arranged, providing access to all inputs and outputs listed in the controller unit specification. As a minimum, all NEMA functions of the controller unit for the configuration selected shall be terminated except those designated by NEMA as spares, reserved, no connection, and manufacturer's use need not be installed in the harness. Terminal positions must be provided, completely wired and neatly arranged, providing access to inputs and outputs in the monitor. All conflict monitor input channels that can be used to monitor the maximum number of signals available in a given

19 Page 19 of 38 configuration shall be terminated. The conflict monitor supply, inputs, and outputs not required to be used in a particular configuration need not be installed in the harness. Provision shall be made to terminate any unused red monitoring inputs. The monitor harness shall be configured for a 6- or 12-channel unit as follows: Controller Load Switch Monitor NEMA 4 Ph. 8 6 channel NEMA 8 Ph channel NEMA 16 Ph channel Power Distribution The following equipment shall be supplied as part of the power distribution panel: a) Main Circuit Breaker b) Auxiliary Circuit Breaker c) Mercury Signal Power Relay d) Radio Interference Suppressor e) AC-Common Bus Bar Isolated f) Safety Ground Bus Bar g) AC+ Power (Filtered) Bus Bar h) AC+ Power (Unfiltered) Bus Bar i) AC+ Signal Power Bus Bar j) AC+ Power (Surge Suppressor) Buss Bar Practices The basic facility shall be so designed and constructed as to be made of a minimum number of separate assemblies to reduce maintenance and handling time for knockdown and retrofit applications. 3.2 Electrical Requirements The terminal facility shall conform to the following electrical requirements: Power Distribution The terminal facility shall operate properly when supplied with single phase AC power ( volts, Hz).

20 Circuit Breakers ROAD COMMISSION FOR OAKLAND COUNTY Page 20 of 38 Three circuit breakers shall be mounted and wired in the terminal facility. The main circuit breaker shall have an ampacity as noted below: Controller Load Switch Main Breaker NEMA 4 Ph amperes NEMA 8 Ph amperes NEMA 16 Ph amperes The main circuit breaker shall be wired as to protect all equipment and breakers on the load side. The load switches and flasher shall be fed off the main breaker through a line filter capable of handling up to 50 amps. The conflict monitor and controller shall be fed off the load side of line filter through a surge suppressor capable of handling 15 amps minimum. The rest of the circuits that use unfiltered power such as (flash transfer relay coils, fan motors shall be fed from the load side of the main circuit breaker. The auxiliary receptacle & cabinet light shall be fed from the load side of the main breaker through a 15 amp fuse. There shall also be two 15 amp circuit breakers (unfiltered) fed from the line side of the main circuit breaker for auxiliary devices. In the size M cabinet, the 15 amp auxiliary breakers shall be wired to a terminal block located near the field wire connection terminals to power external illuminated signs. All breakers shall be Square D QO type Mercury Signal Power Relay The terminal facility shall have a signal power relay wired to provide power from the main circuit breaker after RF1 filter to the AC signal power bus bar and load switches. The mercury contactor shall be energized to provide power to the signal bus and have ampacity equal to or greater than the ampacity of the main breaker AC-Common Bus Bar The AC-common (Neutral) shall be terminated on a solid metallic multi-terminal bus bar. This bus bar shall be insulated from the cabinet. Separate wires shall be run from this bus bar to each unit or group of similar units in the terminal facility which requires AC-common connection. A lug shall be provided attached to the common bus bar that will accept up to #2 copper service conductor. The AC-common and safety ground bus bars shall be jumpered together with a #10 AWG wire and instructions to remove the jumper shall be noted on the cabinet wiring diagram after the safety group bus bar has been attached to the cabinet ground rod during field installation.

21 Page 21 of AC+ Power Bus Bars The AC+ power in the terminal facility shall be divided into three separate and distinct circuits which are filtered AC+ power, unfiltered AC+ power, suppressed AC+. Each shall be terminated on a solid metallic multi-terminal bus bar. These bus bars shall be insulated from the cabinet. Separate wires shall be run from these bus bars to each unit or group of similar units in the terminal facility which requires that AC power connection Conductors All conductors used in the terminal facility wiring shall be #22 AWG (KCMILL), or larger, with a minimum of 19 strands. Conductors shall conform to Military Specification MIL-W-16878, Type B or D. The insulation shall have a minimum thickness of 10 mils and shall be nylon jacketed polyvinyl chloride or shall be irradiated cross-link polyvinyl chloride, polyhalo-carbon, or polycholoralkene. Conductors #8 AWG (KCMILL) and larger may be UL Type THHN. All conductors used in the terminal facility wiring shall conform to the following color-code requirements: a) The AC-common conductor of a circuit shall be identified by a continuous white color. b) The safety (Earth/Chassis) ground conductor of a circuit shall be identified by a continuous green color or a continuous white color with one or more green stripes. c) The AC+ power conductor of a circuit shall be identified by a continuous black color. d) The low level DC (+24 or less) conductor of a circuit shall be identified by a continuous blue color. e) Other conductors, not conforming to one of the above, shall be identified by any continuous color not defined above Wiring Power Distribution within the Facility All terminal facility wiring shall be neat, firm, and routed, where practical, to minimize crosstalk and electrical interference. Printed circuit boards may not be used to eliminate or reduce facility wiring.

22 Page 22 of 38 All terminal facility conductors shall be of sufficient size to carry the maximum current of the circuit or circuits they are provided for. They shall be sized based on the ampacity ratings as follows: AWG (KCMILL) Wire Size Ampacity Rating #22 5 Amps #16 10 Amps #14 15 Amps #12 20 Amps #10 30 Amps # 8 50 Amps # 6 70 Amps The ampacity ratings are calculated based on the current required to raise the temperature of a single insulated conductor in free air (86 F ambient) to the limit of the insulation and applying a bundle derating factor of 0.5 for wires #22 AWG through #10 AWG (KCMILL) and a derating factor of 0.7 for wires #8 AWG (KCMILL) and #6 AWG (KCMILL). The conductor feeding power from the main circuit breaker to the RF1 filter, mercury signal power relay, and AC+ signal power bus bar shall have the same ampacity as the main circuit breaker. The conductor feeding power from the main circuit breaker to the auxiliary breaker and unfiltered AC+ power bus bar shall have an ampacity of 15 amperes. The conductor feeding power from the main circuit breaker to the RF1 filter, filtered AC+ power bus bar, and flasher socket shall have, as a minimum, an ampacity of 50 amperes. The conductor feeding power from the AC+ signal power bus bar to each load switch socket shall have an ampacity of 10 amperes and shall be capable of easily being programmed to source the load switch from another point or interrupt AC+ signal power to an individual load switch for special applications. The conductors feeding power from the load switch to the field signal terminals shall have an ampacity of 10 amperes. The conductors feeding power from the flasher socket to the flash transfer relay sockets which feed flashing power to same shall have an ampacity of 15amperes. The remaining wires to and from the flash transfer relay socket which are in the circuit

23 Page 23 of 38 between the load switch socket and the field signal terminals are covered in the previous paragraph Control Circuits Flash Transfer Control The control circuit to the flash transfer relay sockets shall be such as to provide flashing operation when the monitor or optional auxiliary equipment call for flash (e.g., police panel flash switch and maintenance panel). The flash transfer control shall also conform to the following: The flash transfer relay socket shall be wired so the coil of the relay(s) shall be deenergized for flashing operation. The flash transfer relay sockets shall be located in close proximity to the load switches, flasher, and field signal terminals. The flash transfer relay sockets shall mate with Cinch-Jones P2408 or equivalent Monitor Control Upon detection of a fault, monitor failure, or if the monitor is disconnected, the monitor circuit shall be wired so as to provide flashing operation to the signals and stop time to the controller unit. The monitor shall be wired so as to provide an "External Start" signal to the controller unit upon the application of AC power to the monitor following a power interruption or upon initial turn-on. 3.1 Field Wire Terminal Locations The terminal facility shall provide Field Wire Terminals located to conform to the following requirements: AC Service Hookup Incoming AC power service shall terminate on the back or right side of the cabinet at least 3 inches (8cm) from the bottom of the cabinet. The incoming AC power service shall terminate in compression fittings capable of accepting a #4 AWG (KCMILL) conductor for AC+ and AC- and accepting a #4 AWG (KCMILL) conductor for safety (Earth/Chassis) ground. Signal terminals shall be directly accessible from the front of the cabinet. One terminal shall be provided for each load switch output. It shall be possible to terminate a

24 Page 24 of 38 minimum of 24 #14 AWG (KCMILL) or 8 #10 AWG (KCMILL) neutral leads on the signal common bus and ground bus Auxiliary Equipment The terminal facility shall include the following equipment: Flash Normal Switch A flash-normal switch shall be installed and wired in the police panel of the cabinet. The switch and wiring shall energize and de-energize the flash transfer relays and provide "stop time" to the controller unit when in the "flash" position. Neither AC signal power nor flashing power shall be routed through this switch. The switch shall be labeled "flash-normal." Manual Control Cord and Switch When called for in the Invitation to Bid, a manual control cord and auto-hand switch shall be installed and wired in the police panel of the cabinet. The switch and wiring shall energize the "manual control enable" input to the controller unit and connect the Manual Control Cord to the "interval advance" input to the controller unit. This will provide the control of "green" intervals by the manual control cord with the controller unit timing the remaining intervals, when the auto-hand switch is in the "hand" position. The switch shall be labeled "auto-hand." Stop Time Switch door. A stop time switch shall be provided in a panel on the inside of the front cabinet The switch and wiring shall provide three modes of operation which are: a) Normal - "stop time" to the controller unit is provided as required by the monitor unit or police panel flash switch. b) Run - "stop time" is prevented from being applied to the controller unit from other devices. c) Stop - "stop time" is applied to the controller unit.

25 Page 25 of 38 d) This switch shall be labeled "stop-run-normal." Flash-Normal Switch door. A flash-normal switch shall be provided in a panel on the inside of the front cabinet The switch and wiring shall provide flashing operation as defined for police panel flash-normal switch except that "stop time" shall not be applied to the controller unit. Provisions shall be provided that this flash-normal switch shall operate as a controller unit power switch by removing a control terminal link. This switch shall be labeled "flashnormal." Duplex Receptacle A duplex receptacle of the three-wire grounding (GFCI) type shall be provided in a panel on the inside of the front cabinet door. The receptacle and wiring shall have an ampacity of 15 amperes. The receptacle shall be wired ahead of the main breaker and fused separately from other circuits Miscellaneous Options Cabinet Light An incandescent light socket, with switch, shall be installed in the cabinet. All cabinets shall have a porcelain fixture. The switch to activate the light shall be provided in a panel on the inside of the front cabinet door. The switch and light shall be wired ahead of the main circuit breaker and fused separately. It is acceptable that the duplex receptacle and light share the same fuse Main Power Arrestors and Filters The power supply panel shall include an Edco INXT120N RF filter, or approved equal, connected in series to the load after the main circuit breaker. The power panel shall also include an Edco SHA1250 socket mounted surge arrestor/filter combination unit, or approved equal, connected to the load side of the RF filter.

26 Page 26 of Prints, Functional Data, and Parts List With each cabinet, the manufacturer shall supply each of the following items: (1) a complete set of schematic and wiring diagrams of the terminal facility, (2) a complete set of instructions for installation and maintenance of the cabinets, and (3) a complete parts list. Each of these items shall apply directly to the cabinet with which it is applied. There shall be two sets of the above for each unit ordered. One set is to be put in the installed cabinet, and one set is to be furnished to the maintaining agency. In addition, a complete set of schematic and wiring diagrams shall be supplied in CD format for use on Auto Cad 10. One set shall be supplied for each backpanel configuration on the bid. Section 4 Accessories 4.0 Scope This section defines the minimum acceptable requirements for plug-in accessories for the traffic controller assembly within a traffic control cabinet. 4.1 Signal Monitor This specification sets forth the minimum requirements for a shelf-mountable, six and twelve channel, solid-state Signal Monitor for a NEMA TS-1 Traffic Cabinet Assembly. The Signal Monitor shall comply with all specifications outlines in Current NEMA Standards for TS-1 (Conflict Monitors) including the monitoring the Conflict, Red Fail, 24 vdc and CVM Extending Monitoring Functions The Signal Monitor shall be capable of monitoring for potential faults beyond the Nema Standard. Any of these Extended type faults, when detected, shall force the Output and Start Delay Relay to the de-energized fault state AC Line Brownout Recognition The Signal Monitor shall be able to detect that the AC Line has fallen below 92+/-2 Vac for greater than 475+/-25 ms. and cause the POWER LED to flash at a 2 Hz rate Dual Indication Monitoring The Signal Monitor shall be able to detect the presence of active voltage on any combination of field signal inputs of a channel except Green and Walk.

27 Page 27 of Clearance (Short or Absent Yellow) Monitoring The Signal Monitor shall be able to detect that a channel has not provided an adequate (Minimum 2.7 seconds) Yellow Clearance interval during a Green to Yellow to Red sequence Recurrent Pulse Monitoring The Signal Monitor shall detect Conflict, Red Fail, and Dual Indication faults that result from intermittent or flickering field signal inputs Enhanced Operational Functions The Signal Monitor shall be capable of having its operation enhances to monitor for unique signal configuration or where the Standard Nema definitions can be modified to better insure appropriate indications to motorists. Any of these Enhanced type faults, when detected, shall force the Output and Start Delay Relay to the de-energized fault state Walk Disable Function A Walk Disable function shall be provided which will modify operation of Red Fail monitoring. If this function is enabled via a front panel DIP switch labeled WALK DISABLE, the unit shall trigger if it senses the absence of active Green, Yellow and Red inputs of a channel regardless of the state of the Walk input Four Section FYA Signal Function A function that will monitor a Flashing Yellow Arrow Four Section Signal shall be provided. The function shall be enables by front panel dip switches. When enabled, the signal monitor shall detect the absence of active signal voltages on the Red and Yellow Clearance Arrows, Flashing Yellow Arrow and Green Arrow on a four section FYA 4- section signal. Six channel monitors shall be capable of monitoring a minimum of two FYA signals. Six channel monitors with FYA option shall only be supplied if FYA shown on print. 12 channel monitors shall be capable of monitoring a minimum of 4 FYA signals LCD Indicator A LCD display on the front of the monitor shall be used to indicate the clock and calendar, current fault if present, a minimum of 100 previous events with date and time