Effective with the December 2018 Letting 516 2019 Standard Spec ifications Section 678 Communication Systems
678.1 Description
1.This section describes the furn ishing, installing, and testing of communication systems.
678.2 Materials
678.2.1 Department-Furnished Materials
1.The department will furnish fiber optic cable, splice enclosur es, termination panels, ethernet switches, wireless antennas, and cellular modems.
2.Furnish cables and connectors required to connect department-furnished components as follows: - Furnish cables between ethernet switches and terminal servers or other devices. Furnish outdoor rated cables between wireless antennas and other devices. Furnish Rs-232 patch cables and Cat 5 (E10/100) cables as well as connectors between cellular modems and other devices. Furnish a 19-inch rack mountable shelf.
678.2.2 Fiber Optic Terminations
1.Furnish type ST fiber optic conn ectors that use epoxy or hot m elt adhesive and include a ceramic ferrule.
678.2.3 Communication System Testing
1.Supply materials and equipment necessary to perform the tests as described in these specifications. Test equipment will remain contractor's property. Use equipment consisting of, but not limited to, the following: - Optical time domain reflectometer (OTDR). - Optical source/power meter. - Patch cabling. - OTDR software.
678.3 Construction
678.3.1 Fiber Optic Cable
1.Install cables into the conduit using a flat woven pull tape. Optionally, install the cable via forced air and a track pushing mechanism. Do not use a single pull tape fo r more than a single cable pull. Install the pull tape and fiber optic cables according to the testing p rocedures completed for this project and the pull tape and cable manufac turer’s recommendations.
2.Install cable according to Siecor recommended procedure SRP 00 5-011 for fiber optic cable placing - duct. Follow these procedures reg ardless of the manufacturer of the cable. If the cable manufacturer recommends an operation in conflict with these procedures, subm it a request for installation procedure change to the department for approva l. Do not exceed a maximum pulling tension of 608 pounds-force during installation and 200 pounds-force after installation.
3.If the total signal loss exceeds the allowable loss specified under 678.3.4 , replace or repair that cable run. If elevated attenuation due to exceeding the pulling tensi on during installation is determined, replace that cable run. 678.3.2 Fiber Optic Splices
1.Use only fusion splicing for spli ces. Ensure that each splice does not exceed the attenuation limits set forth in 678.3.4.
2.Do not make mechanical splices.
3.Protect each splice in a protec tive sleeve and secure in the s plice tray. Protect bare fibers with a heat- shrink coating before placement in a sleeve or housing. Install the heat-shrink coating in to protect the fiber from scoring, dirt, accumula tion, moisture intrusion, and micro bending.
4.Install the fiber optic splice enclosure according to the manu facturer's recommended guidelines.
5.Perform end-to-end splicing according to the manufacturer’s in structions for the supplied splice enclosure units.
6.Perform mid-span splicing, dr op splicing, for each device loca tion at locations the plans show. Splice according to Siecor recommended procedure SRP-004-013 for mid-s pan access of fiber optic cable with cable slack present, or appropriate manufacturer instructi ons. Contain mid-span splices within enclosures.
7.Do not deviate from the splice details as the plans show witho ut the engineer’s approval. Effective with the December 2018 Letting 517 2019 Standard Spec ifications 678.3.3 Fiber Optic Terminations
1.Install type ST connectors to the fiber optic cable.
2.Terminate fibers on the rear of the termination panel with typ e ST connectors.
3.Install fiber optic jumpers of s ufficient length to connect th e front side of the termination panel to the fiber equipment contained within the cabinet.
4.Ensure that each termination does not exceed the attenuation l imits specified in 678.3.4 .
678.3.4 Communication System Testing
1.Perform communication system te sting using certified fiber opt ic technicians approved under
670.3.2 2 .
2.Provide the date, time, and location of required tests to the engineer at least 24 hours before performing the test.
3.After completing cable installation, splicing, and termination , test all fibers for continuity, events losses, and total attenuation o f the cable as follows: 1. Test each individual fiber for event losses using an OTDR. Conduct the test using t he standard operating procedure as defined by the m anufacturer of the test equipment. 2. Connect the OTDR and the cable with a factory patch cord of a length equal to t he dead zone of the OTDR. Optionally, the technician ca n use a factory fiber box of 325 feet minimum with no splices within the box. 3. Test each individual fiber for total segment attenuation loss using an optical source/power meter. Conduct the test using the standard opera ting proce dure as defined by t he manufacturer of the test equipment. 4. Conduct both tests, OTDR and optical source/power meter, at 1310 nm and 1550 nm fo r each fiber in the cable. 5. Conduct both tests bi-direc tionally for each fiber in the c able.
4.After completing the tests, submit 1 hard copy and 1 electroni c copy of the test results to the engineer documenting the following test parameters: Operator name Setup parameters Pulse width OTDR Range OTDR Date and time Wavelength Refractory index OTDR Scale OTDR
5.Summarize the results of both t he OTDR and optical source/powe r meter tests in spreadsheet/tabular format adhering to the following requirements: - List fiber optic segment name including route, start point, a nd end point. - List all fibers by number. - List direction of test as NB, SB, EB, or WB. - List total fiber optic cable le ngth for each fiber as documen ted in the OTDR test. - List attenuation in dB of gai n or loss for each fiber optic e vent in the OTDR test. - List fiber optic loss event descriptions and locations includ ing splices, miscellaneous events, and terminations. - List the attenuation across t he cable in dB/mile for each fib er tested. - List the total segment loss fo r each fiber as determined by t he optical source/power meter test. - Provide bi-directional data including event distances, event descriptions, and attenuation losses for each fiber corresponding to a common start point - Provide bi-directional data on separate lines, side-by-side w ithin the same sheet. - Provide 1310 nm and 1550 nm tes t results on separate sheets in identical formats.
6.Provide copies of the fiber cable traces taken during the OTDR test to the department on diskette for review. Provide electronic files in a universal file format, or with software to view the files.
7.Ensure that test results demonstrate that the dB/mile loss doe s not exceed plus 3 percent of the factory test or plus one perc ent of the cable's published produ ction loss. The department will consider the error rate for the test equ ipment in evaluating results.
8.Event losses are an average for each direction tested, and are limited to the following: EVENT TYPE ALLOWABLE LOSS Fusion Splicing 0.10 dB ST Connector 0.50 dB Other miscellaneous events 0.10 dB Total loss across the cable[1] 1 dB/mile [1] Including events and ca ble attenuation. Effective with the December 2018 Letting 518 2019 Standard Spec ifications 678.3.5 Ethernet Switch
1.Install ethernet switches in new or existing field cabinets. C onnect to the devices the plans show or engineer directs.
678.3.6 Wireless Antenna
1.Pole mount wireless antennas as the plans show and conforming to manufacturer’s recommendations. Connect to the devices the plans show or engineer directs.
678.3.7 Cellular Modem
1.Meet with the engineer and field system integrator to discuss specific requirements of the cellular modem and converter before installation. Make electrical and co mmunication network connections to the cellular modem. Mount the cellu lar modem in a 19-inch rack using a rack or shelf.
2.Program and configure the cellu lar modem according to the manu facturer’s instructions. Connect to devices as the plans show.
3.Activate the cellular modem and converter for 30 consecutive d ays. During this period, ensure that the cellular modem operates as specified. If a failure occurs, the engineer will suspend the test until the failure is corrected. Resume te sting until 30 days of successfu l operation is achieved.
678.4 Measurement
1.The department will measure the Install Fiber Optic Cable Outdoor Plant bid items by the linear foot acceptably completed.
2.The department will measure the EACH bid items under this sect ion as each individual unit acceptably completed.
3.The department will measure Communication System Testing as a single lump sum unit for each service acceptably completed.
678.5 Payment
1.The department will pay for measured quantities at the contrac t unit price under the following bid items: ITEM NUMBER DESCRIPTION UNIT 678.0000 - 0199 Install Fiber Opti c Cable Outdoor Plant (count) L F 678.0200 Fiber Optic Splice Enclosure EACH 678.0300 Fiber Optic Splice EACH 678.0400 Fiber Optic Termination EACH 678.0500 Communication System Testing LS 678.0600 Install Ethernet Switches EACH 678.0700 Install Wireless Antennas EACH 678.0800 Install Cellular Modems EACH
2.Payment for the Install Fiber Op tic Cable Outdoor Plant bid items is full compensation for installing and testing department-furnished cabling.
3.Payment for Fiber Optic Splice Enclosure and Fiber Optic Splic e is full compensation for all work required under the individual bid items.
4.Payment for Fiber Optic Termina tion is full compensation for p roviding connectors and jumper cables; and for completing the installation using department-furnished termination panels.
5.Payment for Communica tion System Testing is full compensation for testing and required documentation and certifications.
6.Payment for Install Ethernet Swi tches and Install Wireless Antennas is full compensation for installing the devises; for cables and connectors; and connecting the devi ses.
7.Payment for Install Cellular M odems is full comp ensation for i nstalling the modem; for cables and connectors including rack mount able shelf; for connecting the d evises; for programming and configuration; and for testing.
8.The department will not pay for r eplacements or repairs requir ed under 678.3.1. Effective with the December 2018 Letting 519 2019 Standard Spec ifications Section 690 Sawing
690.1 Description
1.This section describes sawing o f existing concrete or asphalt including pavement, curb & gutter, driveways, sidewalks, and similar work.
690.2 (Vacant)
690.3 Construction 690.3.1 Equipment
1.Use diamond blades for sawing concrete where a full-depth cut is required. The contractor may use carbide cutting wheels to saw c oncrete that will be overlaid or for full-depth cuts where the cut face does not join the new concrete.
690.3.2 Sawing Asphalt
1.Make straight saw cuts at leas t 2 inches deep. Saw so the surf ace remaining is generally vertical over its full depth. Saw to the depth the plan indicates or as the e ngineer directs or allows.
690.3.3 Sawing Concrete
1.Do not extend saw cuts into newly placed concrete pavement or into existing pavements more than 12 inches beyond the limits the engineer designates. Saw full-depth unless the plans indicate otherwise or the engineer directs or allows otherwise.
2.Remove sawing sludge after comp leting each saw cut. Minimize sludge on live traffic lanes. Remove sludge from all traffic control devices each day before dark. D ispose of sludge at an acceptable material disposal site or on engineer-approved areas of the roa dway or roadside.
690.4 Measurement
1.The department will measure Sawing Asphalt and Sawing Concrete by the linear foot acceptably completed. The department will no t measure overcuts beyond the limits the plans show or the engineer directs.
2.If performing Sawing Concrete in conjunction with concrete pavement repair and replacement or concrete base patching, the depa rtment will measure the applica ble total quantity of the following: 1. One full-depth longitudinal cut th rough the repair area if the engineer deems that cut necessary. 2. Two full-depth transverse cuts, one at each limit of the re pair area. 3. Additional transverse cuts as necessary to reduce the remov al slabs to a transportable size. The department will not measure cuts made to reduce removal slabs t o a width less than 7 feet. 4. Additional full-depth cuts the engineer directs to extend t he repair limits, unless t hose cuts were required because of damage contractor operations caused.
3.The department will measure and pay for composite cuts through both asphalt and concrete as concrete.
690.5 Payment
1.The department will pay for measured quantities at the contrac t unit price under the following bid items: ITEM NUMBER DESCRIPTION UNIT 690.0150 Sawing Asphalt LF 690.0250 Sawing Concrete LF
2.Payment is full compensation for sawing and sludge removal.
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Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 525–527 of 601. View official source ↗