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 Art. 864.03 Transceiver-Fiber Optic cable supplier. Sufficient lengths of every loose tube shall be coiled within the enclosure to reach the fiber interface panel or modem.
b.Connectors. Only ST type connectors of ceramic ferrule and Physical Contact (PC) end finish shall be used to terminate fibers to equipment. ST or mechanical connectors shall not be used to splice cables.
c.Splices. The fiber optic cable shall be installed in continuous runs between controller cabinets or as marked on the plans. No splices will be allowed outside the controller cabinets. Fusion splices shall be used if splicing is required in the controller cabinet. The splices shall be secured in a splice organizer tray.
d.Modems and Power Source. Communication between local controllers and the system master controllers shall be facilitated by the use of fiber optic modems. The modems shall be capable of communications with NEMA traffic signal controllers in a coordinated closed loop system. Modems shall be active devices providing full-duplex communication via RS-232 connector and supporting daisy-chain wiring. The nominal operating wavelength shall be 850 nm. The modems shall be according to NEMA Standards for Traffic Control Systems, TS1, Section 2. A minimum of two fiber optic ports shall be provided on each modem. Each fiber optic port shall be ST-PC style and shall be identified as either transmitter or receptor of the optic signal. The other end of the modem shall have the male type RS-232 connector. The modems shall be installed on the interface panel on the side of the controller cabinet. The modems shall be powered from the controller telemetry module.
e.Light Source. An LED light source with a wavelength that is the system wavelength shall be used. The LED shall be stable within 0.1 dB in intensity over a time period sufficiently long enough to perform the measurement. The output of the LED shall overfill the input end of the launch fiber in both numerical aperture (NA) and core diameter.
f.Power Meter. The detector in the power meter shall have an effective NA and active region that is larger than the receive reference cable and/or the fiber under test. The power meter shall have a minimum range from +3 dBm to –40 dBm. The power meter shall have an accuracy of ± 0.5 dB through the operating temperature and minimum resolution of 0.1 dB.
g.Breakout Kits. Breakout kits shall provide for the separation and protection of individual fibers with buffer tubing and jacketing materials suitable for termination of the fiber with the fiber optic connectors as specified.
h.Interface Panel. This panel interfaces the controller telemetry to the fiber optic modems and provides terminal block tie points for the other telemetry signals. A terminal for each conductor in the cable shall be required.
864.04 Testing and Product Information. Field testing of the equipment
shall be according to Article 801.13(d). All components of the fiber optic system shall have the manufacturer’s name, address, type, style, model or serial number, and catalog number on a plate secured to the equipment. It is advised that the system be Multi-Conductor Power Cable Art. 870.03 from the same manufacture to ensure uniformity, interchangeability of components, single responsibility, and most satisfactory service.
864.05 Basis of Payment. This work will be paid for at the contract unit price
per each for TRANSCEIVER - FIBER OPTIC, for each traffic signal cabinet. WIRE AND CABLE SECTION 870. MULTI-CONDUCTOR POWER CABLE
870.01 Description. This work shall consist of furnishing and installing multi-
conductor direct burial power cable, complete with all splicing, identifications, and terminations.
870.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Multi-Conductor Power Cable ............................................................ 1076.01
b.Splicing and Termination of Electric Cable ........................................ 1066.06 CONSTRUCTION REQUIREMENTS
870.03 Installation. The multi-conductor cable extended to equipment shall
be of a length sufficient for cable splices to be withdrawn a minimum of 18 in. (450 mm) out of pole handholes, pull boxes, or junction boxes. For preparation of cable termination or splicing, the multi-conductor cable jacket and any underlying tape, shall be removed for a distance of 8 in. (200 mm) from the end of the center conductor. The fillers shall be removed and cut at the end of the jacket. The assembly shall be taped tightly together at the end of the jacket before the conductors are spread apart. Multi-conductor cable shall not be bent to a radius less than the manufacturer’s recommended bending radius, either in permanent placement or during installation. The cable shall be installed directly from the reels on which the cable was shipped. Dragging or laying cable on the ground will not be permitted. No underground splicing of cable will be permitted. Immediately after placement, the cable ends shall be sealed to prevent entrance of moisture and contaminates, unless splicing or termination work is performed concurrently. The multi-conductor cable assembly shall be terminated with a multi-leg heat- shrink boot. The end of the cable shall be wrapped with sealant tape recommended by the boot manufacturer around and between individual insulated conductors, with the boot overall. The boot shall meet military specification SAE-AS81765/1.
Referenced in this section
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 742–744 of 1,217. View official source ↗