Art. 861.01 Digital Time Switch SECTION 861. DIGITAL TIME SWITCH
861.01 Description. This work shall consist of furnishing, installing, and
setting a digital time switch, with necessary connections for proper operation.
861.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Digital Time Switch ............................................................................ 1074.01
861.03 Basis of Payment. This work will be paid for at the contract unit price
per each for DIGITAL TIME SWITCH. SECTION 862. UNINTERRUPTABLE POWER SUPPLY (UPS)
862.01 Description. This work shall consist of furnishing and installing an
uninterruptable power supply (UPS).
862.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Uninterruptable Power Supply ........................................................... 1074.04 CONSTRUCTION REQUIREMENTS
862.03 General. The UPS shall provide power for full run-time operation for
an “LED-only” intersection (all colors red, yellow, and green) or flashing mode operation for an intersection using red LED’s. A UPS that provides a minimum of two hours of full run-time operation will be designated as “standard”. A UPS that provides a minimum of six hours of full run-time operation will be designated as “extended”. The UPS shall include, but not be limited to the following: inverter/charger, power transfer relay, batteries, a separate manually operated non-electronic bypass switch, and all necessary hardware and interconnect wiring according to the plans. The UPS shall provide reliable emergency power to the traffic signals in the event of a power failure or interruption. The transfer from utility power to battery power and visa versa shall not interfere with the normal operation of traffic controller, conflict monitor/malfunction management unit, or any other peripheral devices within the traffic controller assembly. The UPS shall be designed for outdoor applications, and shall meet the environmental requirements of, “NEMA Standards Publication No. TS 2 – Traffic Controller Assemblies”, except as modified herein.
862.04 Basis of Payment. This work will be paid for at the contract unit price
per each for UNINTERRUPTABLE POWER SUPPLY, STANDARD or UNINTERRUPTABLE POWER SUPPLY, EXTENDED. Transceiver-Fiber Optic Art. 864.03 SECTION 863. CONTROLLER CABINET AND PERIPHERAL EQUIPMENT
863.01 Description. This work shall consist of furnishing and installing a
cabinet and peripheral equipment for an existing traffic signal controller.
863.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Controller Cabinet and Peripheral Equipment ................................... 1074.03 CONSTRUCTION REQUIREMENTS
863.03 General. The cabinet shall be furnished with panel, terminal facilities,
malfunction management unit, bus interface unit, load switches, and flasher relays complete with necessary connections for proper operation. The type of cabinet shall be as specified on the plans.
863.04 Basis of Payment. This work will be paid for at the contract unit price
per each for CONTROLLER CABINET, of the type specified. SECTION 864. TRANSCEIVER-FIBER OPTIC
864.01 Description. This work shall consist of furnishing and installing a fiber
optic transceiver for a traffic signal controller. CONSTRUCTION REQUIREMENTS
864.02 General. The fiber optic transceiver shall be installed according to
Section 859 and the following. All fiber optic components, except the interconnect cable itself, required to provide communication between local controllers and/or masters, shall be furnished and installed as part of this item.
864.03 Transceiver Components. The transceiver and all related
components and connections shall be provided for the operation of the fiber optic interconnect communication system in each traffic signal cabinet. These items shall include but not be limited to the following.
a.Distribution Enclosure. Field cable shall terminate in the controller cabinet within a wall-mount distribution enclosure. The distribution enclosure shall seal out dust and moisture. The size shall be sufficient to store all fiber windings and splices. The location of the distribution enclosure shall not restrict access to other controller components. The field cable shall be firmly secured to the enclosure with clamping devices approved by the cable supplier. The cabinet cable shall leave the enclosure through devices to protect the cable against wear. The field cable jacket shall be removed and all protective gel cleaned from the loose tubes as recommended by the
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 741–742 of 1,217. View official source ↗