• TS 1, Section 14, Solid -State Traffic Signal Controller Units .
• TS-2, Section 2, Environmental Standards and Test Procedures .
• TS-2, Section 3, Controller Standards and Coordination .
• TS-2, Section 5, Interface and Electrical Standards .
• TS-2, Section 8, Bus Interface Unit Requirements .
• NEMA Standards Publication TS 2 -“Current Edition” .
1.b Controller Requirements.
• All hardware and software must be according to NEMA TS -1, TS -2 standards, and as directed.
• All cabinets require a plug -in hand control with cord and a method of switching the signal controller between automatic and manual control.
• Include ability to accept a contact closure or open controller output to reset clock on controller at a predetermined hour each day.
• Provide communication equipment as indicated and as specified in Section 953.2.
• Controller must be IP/Ethernet enabled for communications on IP networks.
1.c Conflict Monitor /Malfunction Management Unit .
• TS 1, Section 6, Conflict Monitor.
• TS 2, Section 2.3, Malfunction Management Unit Test.
• TS 2, Section 4, Malfunction Management Unit.
• Conflict monitor must monitor absence of red indications and be compatible with Flashing Yellow Arrow permitted left turn operation.
• IP/Ethernet enabled for communications on IP networks.
A minimum of one input channel for each load switch socket as specified in Section 952.2(c)1.e.
1.d Flasher Unit.
• TS 1, Section 8, Solid State Flasher.
• TS 2, Section 2.6, Flasher Tests.
• TS 2, Section 6.3, Solid -State Flasher.
1.e Load Switches .
• TS 1, Section 5, Solid -State Load Switches.
• TS 2, Section 2.5, Load Switch Tests. • TS 2, Section 6.2, Three -Circuit Solid State Load Switch
• Operational Features: Provide Light Emitting Diode (LED) indicators to display operation. Isolate signal load from load switch input using optic couplers. Furnish a minimum of one load switch for each of the following active controller unit functions:
ͦ Vehicle Phase. ͦ Overlapping Vehicle Phase. ͦ Pedestrian Phase.
1.f Cabinet. Furnish a weatherproof controller cabinet, large enough to suitably house the traffic signal controller unit and auxiliary equipment, and conforming to the following requirements:
1.f.1 Enclosure.
• Material . Sheet or cast aluminum.
• Wall Thickness . 1/8-inch minimum, reinforced where required.
• Minimum Size . As shown on the Standard Drawings and as follows: Position equipment in the cabinet to provide access to all terminal strips and equipment from the front without removing other equipment. Provide an unobstructed view of all equipm