1993 Specifications CSJ 0018-05-062, etc. SPECIAL SPECIFICATION 1438 Fiber Optic Cable (Single mode and Multimode) 1. Description. This Item shall govern for the furnishing and installation of fiber optic cable in designated locations as shown on the plans and as detailed in accordance with these Specifications. This Item shall also include fiber optic cable management software to be used by the Contractor during installation and testing and turned over to the City for ongoing management of the fiber optic infrastructure. The fiber optic cable management software shall be capable of displaying the physical fiber infrastructure on a GIS based map. The software shall include an integrated database to document information such as the system definition, connections with link loss analysis, and fault management with integrated OTDR testing and analysis to identify and locate faults. The software shall be capable of operating under Microsoft Windows NT 4.0 or later. 2. Material. A. General Requirements. All materials furnished, assembled, fabricated or installed under this Item shall be new, corrosion resistant and in strict accordance with the details shown on the plans and in the specifications. The Contractor shall furnish, install, splice and test all the required fiber optic cable. All splicing kits, fiber optic cable caps, moisture/water sealants, terminators, splice trays, pig tails and accessories to complete the fiber optic network shall be provided as incidentals. All equipment for installation, splicing and testing shall be provided by the Contractor. The quantity of fibers within the cable shall be as shown on the contract plans. The cable shall meet, as a minimum, the following specifications and shall conform with the latest issue of Bellcore TR-TSY- 000020: Generic Requirement for Optical Fiber and Optical Fiber Cables, ANSI/EIA-472: Generic Specification of Fiber Optic Cables, and REA-PE-90; and appropriate Special Specifications thereof. B. Functional Requirements. The fiber optic cable shall be the primary medium for voice, data, and video communications between the central and the field. The cable shall be suitable for installation in an underground conduit environment including constant immersion in water for outdoor installations, and suitable for installation indoors to be compliant with all NEC codes for plenum, riser, and sealed raceway installations. All cable shall be loosetube, non-metallic construction. All fibers in the fiber optic cable shall be spliced and/or terminated as indicated on the plans and as specified herein. 1-14 1438
All fiber optic glass shall be from the same manufacturer. No field connectorization of any fibers will be allowed under this contract. All connectors shall be factory installed on approved fiber pigtails to be fusion spliced into respective fibers. The cable shall be provided in continuous lengths. Each fiber shall be pulled from the same optical waveguide form and shall be free of splices. Each optical fiber shall consist of a doped silica core surrounded by a concentric silica cladding; the use of any other material must be approved by the Engineer. C. Optical Requirements. 1. Cable Configuration. The single mode fibers shall have a step index profile with a core/cladding size of (8-10)/125 microns. The multimode fibers shall have a graded index profile with a core/cladding size of 62.5/125 microns. 2. Attenuation. The nominal attenuation for single mode shall be 0.4 db/km maximum at a wavelength of 1300 nm and attenuation of 0.3 db/km maximum at a wavelength of 1550 nm. The nominal attenuation for multimode shall be 3.0 db/km maximum at a wavelength of 850 nm and attenuation of 1.0 db/km maximum at a wavelength of 1300 nm. 3. Bandwidth. Single mode fibers shall have a maximum dispersion of 3.5 pico seconds/nanometer-kilometer at 1300 nm. Multimode fibers shall have a minimum bandwidth product of 200 MHz-km at a wavelength of 850 nm and 500 MHz-km at a wavelength of 1300 nm. 4. Testing. All optical fibers shall be proof tested by the fiber manufacturer at a minimum load of 6000 kpa. All optical fibers shall be 100% attenuation tested at the factory for compliance with performance specifications described herein. The attenuation of each fiber shall be provided with each cable reel. D. Mechanical Requirements. 1. Fibers. The quantity of fibers contained in the fiber optic able shall be as shown on the plans. Single mode fibers shall have a nominal core diameter of 8 to 10 microns. Fiber outer diameter shall be 125 ± 3 microns. Multimode fibers shall have a nominal core diameter of 62.5 microns. Fiber outer diameter shall be 125 ± 3 microns. 2. Core/Clad Concentricity. Core/Clad concentricity shall be within ± 1 microns for singlemode and within ± 3 microns for multimode. 3. Primary Coating. Each fiber shall have a high density polymer coating of a minimum of 250 micron to prevent abrasion of the fiber surface or as approved by the Engineer. 4. Buffering. The cable shall be of gel-filled or waterblocked, loose tube construction with up to 12 buffer tubes wrapped around a dielectric central strength member. All 2-14 1438
fiber(s) shall be contained within buffer tubes, and each buffer tube shall have an insider diameter much greater than the total diameter(s) of the fiber(s) it supports. Each fiber or group of fibers shall be free-floating within the tubes such that all mechanically or environmentally induced stress placed upon the cable is decoupled from the fibers. The air within the buffer tubes shall be displaced with a gel to prevent entry by water and to facilitate free movement of the fiber(s) within. 5. Tensile Strength. The cable shall be capable of withstanding a pulling tension of 600 lbf under load conditions and 135 lbf under static conditions and a crush resistance of 1100 lbf/ft (length of cable), without changing the characteristics of the optical fibers. Requirements for a higher pulling tension shall be provided as directed by the Engineer. 6. Bend Radius. The cable shall be capable of withstanding a minimum bending radius of 10 times its outer diameter during operation and 20 times its outer diameter during installation without changing the characteristics of the optical fibers. 7. Cable Configuration. The fiber optic cable shall have a reverse oscillation or planetary stranding structure. Cables constructed of less than 6 fibers shall have a buffer tube provided for each fiber; cables constructed of more than six fibers may have several fibers have several fibers occupy a buffer tube, with equal distribution of fibers as far as practical. Jacket construction and the configuration of the groups shall be such that they can easily be separated at splice points, permitting one set of fibers to be cut and spliced while the others remain continuous. The Contractor shall submit proposed cable designs for the Engineer's approval prior to procurement and installation of cable plant. The cable shall have a water-block tape over the buffer tubes and throughout the remainder of the cable to prevent entry of water. A binder wrapping strength member of aramid fibers shall be provided as a final layer prior to application of the outer jacket. The Contractor shall demonstrate crush and abrasion resistance of final cable design and adequacy for conduit installation under full tensile loads and multiple bends. 8. Diameter. The outer diameter of each cable shall be less than 3/4 in. 9. Color Coding. Each fiber buffer jacket shall be color coded separately. Within unit tubes or sub-bundles, each fiber shall have a distinctly different color coding. The buffer tubes shall be color coded in compliance with EIA/TIA-598 "Color Coding of Fiber Optic Cables". All fibers shall be color coded in compliance with EIA/TIA-598 "Color Coding of Fiber Optic Cables." In buffer tubes containing multiple fibers, the colors shall be stable during temperature cycling and not subject 3-14 1438
to fading or smearing onto each other or into the gel filling material. Colors shall not cause fibers to stick together. 10. Cable Jacket. The outer jacket shall be constructed of medium density polyethylene, minimum jacket thickness of 0.055 in. Jacketing material shall be applied directly over the tensile strength members and flooding compound. The outer jacket shall be UV and fungus resistant. A permanent marking shall be employed on the outer jacket of the cable which shall show the date of manufacture and the manufacturer's name. A numerical sequence shall be marked on the outer jacket, at intervals no greater than 10 ft., to facilitate determination of length of cable and amount of cable remaining on the reel. The height of the marking shall be 0.1 in. nominal. In addition, cable tags with permanent markings shall be provided that include the words "TxDOT Laredo District" at all groundbox and cable access locations. 11. Environmental. The cable shall be capable of withstanding the following environmental conditions: Installation: -22ºF to 160ºF Storage/Operation: -40ºF to 160ºF Humidity: 0 to 100% E. Installation Requirements. The fiber optic cable installation techniques shall be such that the optical and mechanical characteristics of the cables are not degraded at the time of installation. 1. Installation in Conduit. The cable pulling operation shall be performed so that a minimum bending radius of the cable shall not be exceeded in the unreeling and pulling operations. Entry guide shutes shall be used to guide the cable into the pullbox conduit ports. Lubricating compound shall be used to minimize cable-toconduit friction. Corner rollers (wheels), if used, shall not have radii less than the minimum installation bending radius of the cable. A series array of smaller wheels can be used for accomplishing the bend if the array is specifically approved by the cable Manufacturer. The pulling tension shall be continuously measured and it shall not be allowed to exceed the maximum tension specified by the manufacturer of the cable. Fuse links and breaks shall be used to insure cable tensile strength shall not exceed 600 lb. When simultaneously pulling fiber optic cable with other cables, separate grooved rollers shall be used for each cable. Conduits shall be sealed with a 2 part urethane after cable installation. 2. Cable Installation between Pullboxes and Cabinets. When pulling the cable from the nearest manhole to the fiber hub the cable shall be spliced to a multi-fiber jacketed pigtail to complete the run. All remaining fibers shall remain continuous with no splices. Care shall be taken during thisprocedure to avoid bending the cable beyond its minimum bend radius. 4-14 1438
3. Splicing Requirements. All optical fibers shall be spliced or terminated by the Contractor as shown in the splicing diagrams on the plans. Splices shall be allowed only in locations as shown within the plans or as directed by the Engineer. All splices shall use the fusion technique. Fusion splicing equipment shall be provided by the Contractor and shall be cleaned, calibrated and specifically adjusted to the fiber and environmental conditions at the start of each shift. Fusion splicing equipment used shall be approved by the Engineer. Splice enclosures, organizers and incidentals, and cable end preparation tools and procedures, shall be compatible with the cable type being delivered and approved by the Engineer. Each spliced fiber shall be packaged in a protective sleeving or housing. Bare fiber shall be completely recoated with a protective 8 RTV, gel or similar substance, prior to application of the sleeve or housing, so as to protect the fiber from scoring, dirt or microbending. Outdoor Splice Enclosure. The outdoor optical splice enclosure shall be capable of aerial, duct or buried applications. The splice enclosure shall consist of an outer enclosure, an inner enclosure, and splice trays. The splice enclosure shall be suitable for application in the temperature range of - 40ºF to 160ºF. The splice enclosure shall provide space allowing entry of fiber optic cable without exceeding the minimum bend radius of the cable. The splice enclosure shall be capable of through, branch, or mid-span type splice locations. The splice enclosure shall be designed to permit selective fiber splicing (looping a backbone cable in and out while only cutting into the desired fibers). The splice enclosure shall allow splicing of all fibers up to the maximum number specified on the contract drawings. The outer enclosure shall be waterproof, re-enterable and shall utilize an encapsulant between the inner and outer enclosure to prevent the ingress of moisture. The inner enclosure shall be designed to protect the buffer tubes and the splice trays. The inner enclosure shall be re-enterable. The splice trays within the inner enclosure shall be capable of accommodating the required number of splices, either fusion or mechanical, including storage and protection of slack fiber. 5-14 1438
All outdoor splice enclosures shall be located within specified communications groundboxes, as shown on the plans. A maintenance loop of at least 100 ft. of cable on each end of the splice closure shall be coiled up in a Figure-8 manner and neatly placed in the communications groundbox. This will allow for future splices in the event of a damaged splice. "Pigtails" shall be used to interconnect equipment. Type 1 ground boxes shall have a maintenance loop of at least 50 ft. coiled up and neatly placed within the ground box. Splice loss shall not exceed a 0.07 db. All splice losses shall be recorded in tabular form and submitted to the Engineer for approval. Splices that are made between 2 cables shall be tested using an Optical Time Domain Reflectometer (OTDR) in both directions. These splices shall be tested at the required wavelength and printouts and electronic files of the splice tests shall be provided. 4. Termination Requirements. In cabinets where the optical fibers have to be connected to terminal equipment, the Contractor shall provide matching connectors. The connector loss for complete connection to the terminal equipment shall not exceed 0.4 db. Connectors will be qualified and accepted on the basis of connectortoconnector mating using similar fibers. In the Hub Cabinet and at the ends of the system, 6.5 ft. of the unused optical fibers shall be removed from the buffer tube(s) and the coiled fibers placed into a splice tray approved by the Engineer. The water blocking compound shall be cleaned from all fibers destined for splice tray usage. Fiber Distribution Panel/Fiber Patch Panel. Fiber Distribution Panels (FDP) shall be furnished and installed at the locations shown on the plans and shall consist of 2 parts: A splice shelf and an optical patch panel. The splice shelf shall house and protect fusion splices of OSP fibers to optical fiber pigtails with 6.5 ft. of pigtail slack on each fiber. The fiber distribution panel shall house and protect the required quantity of connectors and splices on each pigtail and slack for fiber optic patchcords. The fiber pigtail slack shall be neatly coiled and secured in a manner that does not allow the minimum operational bending radius of the pigtail to be exceeded. The approved type optical connectors on the end of each pigtail shall screw into a sleeve securely mounted to a patch panel within the FDP enclosure. The maximum optical loss across the connection shall not exceed 0.4 db. 6-14 1438
SC-type connectors shall be used for singlemode connections, ST-type connectors shall be used for multimode connections. The FDP shall be capable of singlemode and multimode terminations grouped by 6-8 connector sub-panels. All singlemode outside plant cable terminations at the TMC and backup TMC shall be spliced and terminated within the FDP. Multimode optical equipment, such as the ATM video codecs and ATM switch connections, shall be terminated through the FDP, or associated FPP (fiber patch panel). The FDP housings shall be rack mounted in standard EIA 19 in. equipment racks, as shown on the Contract Drawings. The housing shall have OSP cable entrances with cable sheath strain relief. Fiber Patch Panels shall be provided in 2 configurations. Type 1 Fiber Patch Panels shall be furnished and installed in outdoor traffic signal controller cabinets at the locations shown on the plans. The fiber patch panel shall act as the demarcation point between the OSP cable via the fiber pigtail from the splice closure and the terminal equipment via the fiber patchcords. The Type 1 FPP housings shall be surface or shelf mounted in the outdoor traffic signal controller cabinets, as shown on the plans. The FPP shall accept a minimum of 12 fiber terminations (in and out). The cabinet shall have OSP cable entrances with cable sheath strain relief, leading to the FPP. The Type 2 Fiber Patch Panel shall be a rack mountable panel in an EIA standard 19 in. rack. The panel shall be capable of terminating up to 192 fibers in sub-panels of 6-8 fiber connectors per panel, as required at each location. Type 2 Fiber Patch Panels shall be used at communication hub locations. The outside plant cable at remote hub locations shall be spliced to multi-fiber pigtails in the adjacent communications ground boxes as shown on the plans. The multi-fiber pigtails shall enter the hub cabinet and terminate on the FPP. 5. Fiber Optic Patch Cords/Pigtails. Fiber optic patch cords shall be provided to cross connect the fiber distribution panel or fiber patch panel to the fiber optic transmission equipment. These jumpers shall be orange in color for the multimode fiber, yellow in color for singlemode fiber and shall have strain relief on the connectors. The fiber shall have a 900 micron polymer coating with tight buffer tube, Kevlar strength member and a PVC jacket. The patch cords shall be 3 ft. in length or as directed by the Engineer. The optical patch cords furnished under this Item shall consist of a section of single fiber, jacketed cable equipped with factory installed optical connectors at both ends, in single fiber simplex or dual fiber duplex configurations as required. Patch cords for connections from FDP to FDP shall be equipped with approved connectors on both ends of the patch cord, as shown on the plans. Patch cords for connections from FDP to optical devices shall be equipped with an approved connector on one end. The optical connector on the other end of these 7-14 1438
patch cords shall be compatible with the connectors furnished on the optical device transmit and receive ports. There shall be 2 types of optical pigtails provided under this Item. The first type shall consist of a section of single fiber, jacketed cable, equipped with an approved factory installed connector at one end. The other end shall be stripped and prepared for fusion splicing. This type shall be used within fiber distribution panels. The second type shall consist of multiple fibers, factory connectorized on one end, suitable for installation in an outdoor duct run. The fibers shall be contained in a single buffer tube configured cable, equipped with a fan-out or transition to individually jacketed fibers, with aramid yarn fibers between the fiber and the subjacket, once the cable enters the cabinet or other protected environment. The fibers shall then be contained in a medium density polyethylene outer jacket. The multifiber pigtail shall be provided in the following configurations: Six and 12 singlemode fibers. The approved connectors furnished as part of optical patch cords and pigtails shall meet or exceed the requirements for approved connectors specified herein. The fiber portion of each patch cord and pigtail shall be a single, jacketed fiber with optical properties identical to the optical cable furnished under this Item. Each jacketed fiber shall have a tensile strength in excess of 50 lb. 6. Optical Connectors. All permanent connector installations shall utilized factory installed/tested connectors. Field installed connectors shall not be allowed. The optical connectors furnished for installation on optical patch cords and pigtails shall be compatible with the connector sleeves on the fiber distribution panels. The connectors shall meet, as a minimum, the following specifications: Type: SC (singlemode); ST (multimode) Attenuation: (Average, 3 readings, 120 degree spacing): 0.4dB, maximum @ 1300 nm Mechanical Stability: 0.3 db change, maximum Tensile Stability: 0.3 db change, maximum Thermal Stability: (5 cycles, -4ºF to 140ºF) 0.4 db change, maximum 3. Construction Methods. A. General. The installation of the cable, the splicing of the fibers, the attachment of connectors and mounting of hardware in cabinets and the methods employed in the above "Mechanical Requirements" sections shall utilize the latest available installation machinery, jacking equipment, cable pulling machinery with appropriate tension monitors, splicing equipment and testing equipment and other miscellaneous tools. All installation techniques and fixtures shall result in ease of maintenance and ready access to all components for testing and measurement. 8-14 1438
B. Mechanical Components. All external screws, nuts, and locking washers shall be stainless steel. No self-tapping screws shall be used unless specifically approved by the Engineer. All parts shall be made of corrosion resistant material, such as plastic, anodized aluminum or brass. All materials used in construction shall be protected from fungus growth and moisture deterioration. Dissimilar metals shall be separated by an inert dielectric material. C. Installation. The installation of the fiber optic cable shall be conducted in a phased manner. The Contractor shall make every effort to protect the relatively delicate fiber optic cable during construction and installation, including protection from vandalism. The Contractor shall perform the cable installation in accordance with the Engineer approved plan. Any deviations from the approved plan must be submitted in writing to the Engineer. The Contractor shall, at all times, conduct the installation of the fiber optic cable in a workmanlike manner identical to installations found in the telephone industry, and in complete conformance with the recommended practices of the cable manufacturer. The tensile ratings, minimum bending radius, and any other fiber optic cable installation restriction shall not be exceeded. The Contractor shall give the Engineer 5 working days notice of all fiber optic cable installations so that authorized representative may be present, if necessary. All cable runs shall be continuous from nodal site to nodal site. No splices of any kind shall be accepted between nodal sites or at locations other than approved splice points or as shown on the plans. The cable shall not be cut in the field unless otherwise approved by the Engineer. All cable runs shall be continuous between roadside cabinets as shown on the plans. All cables shall be clearly marked and tagged to identify the cable origin, destination, function and TxDOT Laredo District designated identification number. Such tags shall be of nylon or other approved construction, with permanent mechanically printed markings. This is in addition to the permanent identification marking specified elsewhere. If the cable must be unreeled during installation, the Contractor shall use the "Figure-8" method to prevent kinking or twisting of the cable. The cable shall not be coiled in a continuous direction except for lengths of less than 33 ft. The minimum bend radius shall not be exceeded at any time during the figure-eight operation. The Contractor shall take steps to relieve pressure on the cable at the crossover of the eight. 9-14 1438
All fiber optic cable to be installed in duct runs shall be installed in an innerduct within a multi-duct conduit or in a separate innerduct where a multi-duct conduit does not exist, as specified elsewhere. Fiber optic innerduct shall be furnished and installed within existing duct, inside cable trays, and manholes, and at any location where fiber optic cable is exterior to dedicated conduit. Fiber optic innerduct shall be flexible with a minimum bending radius not less than the minimum bending radius of the fiber optic cable which it supports. The innerduct shall be orange in color for ease of identification, and shall have a preinstalled pull rope or pull tape to facillitate cable pulling. The innerduct shall have a smooth outer wall and a permanent pre-lubricated ribbed inner wall. All duct runs shall be verified by the Contractor as continuous from groundbox to groundbox and suitable for installation of innerduct. In areas where the innerduct cannot pass through a manhole or pullbox, the cable shall be racked and covered with an intermediary innerduct or placed in a manner to protect it from damage during re-entry of the manhole or pullbox. Where a cable run changes directions, the Contractor shall provide for sufficient slack and protect the cable against violating the minimum bend radius in the event slack was pulled from another location. A manufacturer approved cable lubricant shall be used when pulling fiber optic cable in duct. Liquid detergent shall not be used as a lubricant. Intermediate pull points may be used to assist the cable through the duct run to achieve the required cable lengths. The fiber optic cable shall be brought into each FDP/FPP as follows: The backbone cable shall be brought into the communications groundbox adjacent to each roadside cabinet as shown on the plans, and 100 ft. of cable slack on each end of the splice shall be coiled in the groundbox. The cable shall be spliced in the groundbox as shown on the plans. A factory connectorized, multi-strand, jacketed pigtail shall be fusion spliced to the active fibers in the backbone cable for the respective cabinet. The remaining fibers in the backbone cable shall continue uncut (or through-spliced with prior approval by the Engineer) in the groundbox. The pigtail shall be installed in provided conduit to the cabinet and terminated on the fiber patch panel. At the communications hubs, the single mode cable shall be brought into the adjacent communications groundbox as shown on the plans, and 100 ft. of cable slack from each cable shall be coiled in the groundbox. 10-14 1438
The cable shall be spliced in the groundbox as shown on the plans. A factory connectorized, multi-strand, jacketed pigtail shall be fusion spliced for each fiber in the backbone cable. Multiple 12-fiber pigtails shall be used to accommodate backbone cables with more than 12 fibers. The pigtails shall be installed in provided conduit to the cabinet and terminated on the fiber patch panel. Each fiber shall be fusion spliced to a factory connectorized pigtail, for termination within the FDP. Patch cords shall be used to connect terminal equipment with the FDP. 1. Documentation Requirements. Ten complete sets of operation and maintenance manuals shall be provided. The manuals shall, as a minimum, include the following: Complete and accurate schematic diagrams showing the fiber optic cable plant. Complete performance data of the cable plant showing the losses at each splice joint and each terminal connector. Installation, splicing, terminating and testing procedures. Complete parts list including names of vendors. Complete maintenance and trouble-shooting procedures. Two months prior to installation, 10 copies of the Contractors Installation Practices shall be submitted for approval. This shall include practices, list of installation equipment, and splicing and test equipment. Field quality control procedures shall be detailed as well as procedures for corrective action. The documentation requirements shall also be in accordance with Special Specification, "Testing, Training, Documentation, Final Acceptance and Warranty". D. Testing Requirements. 1. General. It is the policy of the Department to require performance testing of all materials and equipment not previously tested and approved. If technical data are not considered adequate for approval, samples may be requested for test by the Engineer. The contract period will not be extended for time lost or delays caused by testing prior to final Department approval of any items. The equipment covered by the specification shall be subject to Design Approval Tests and Factory Demonstration Tests at the equipment manufacturer's facility to determine conformance with all the specification requirements except that the Engineer may accept certification by an independent testing lab in lieu of the Design Approval Tests, to verify that the Design Approval Tests have previously been satisfactorily completed. The Contractor shall arrange for and conduct the tests in accordance with the testing requirements stated herein. Unless otherwise specified, the Contractor is responsible for satisfying all inspection requirements prior to submission for the Engineer's inspection and acceptance. The Engineer reserves the right to have his/her representative witness all tests. 11-14 1438
The results of each test shall be compared with the requirements specified herein. Failure to conform to the requirements of any test shall be counted as a defect, and equipment shall be subject to rejection by the Engineer. Rejected equipment may be offered again for retests provided all non-compliances have been corrected and retested by the Contractor and evidence thereof submitted to the Engineer. Final inspection and acceptance of the fiber optic cable shall be made after the completion of the installation and testing and approval of the documentation described above. 2. Manufacturer's Test/Certification. Each reel of fiber optic cable shall be accompanied by the manufacturer's test data showing the conformance to the requirements described in this Special Specification. The Contractor shall ensure that each finished and installed fiber optic cable segment shall traceable to the test date on file for each step in its manufacturing process. The Engineer, or its authorized representative, shall have the right to make inspections and tests as are necessary to determine if the cable meets the requirements of this Specification. The Engineer shall have the right to reject cable which is defective in any respect. The Engineer shall be given 10 working days advance notice of the date the cable will be ready for final testing so that the Engineer may be present at the tests, if he/she so elects. Physical tests shall be made on samples selected at random at the place of production. Each test sample shall be taken from the accessible end of different reels. Each reel selected and the corresponding sample shall be identified. The number and lengths of samples shall be as specified for the individual test. All applicable tests for the cable materials and cable construction specified shall be performed. Optical tests shall be made on the entire length of each continuous fiber provided within each fiber optic cable. Each test shall be completed during manufacture as required, and again prior to shipping, after the cable is secured to the reel in final shipping packaged form. The manufacturer shall provide, at the point of production, apparatus and labor for making any or all of the following tests under the supervision of the Engineer, to included, but not limited to: Tensile Strength Impact Resistance, Crushing and Flexing Optical Attenuation Optical Spectral Dispersion Optical Time Domain Reflectometry (OTDR) 12-14 1438
3. Pre-installation Tests. The fiber optic cable shall be tested at the site storage area prior to installation. Each optical fiber in the cable shall be tested from one end with an OTDR compatible with wavelength and fiber type. Testing shall check for continuity, length, anomalies, and approximate attenuation. Each measurement will be recorded with color, location and type of fiber measured. In the event that a meaningful measurement cannot be made from one end, it shall be performed from the opposite end of that fiber. If the tested loss per mile exceeds the loss from the manufacturer's test data the Engineer shall reject the cable. 4. Post Installation Tests. After installation, each optical fiber in the cable shall be tested again for the loss characteristics. Both directions of operation of the fiber shall be tested. After each splice and connector installation, the cable shall also be tested and the data shall be submitted to the Engineer as basis for acceptance. OTDR and/or power meter/optical light source testing equipment, as specified by the cable manufacturer, shall be used for this testing. The Contractor shall notify the Engineer in writing 5 working days in advance of the testing of the cable so that the Engineer, or authorized representative, may be present for the tests, if the Engineer so elects. Optical testing shall be performed on all fibers within each cable, including those extra fibers which the Contractor elects to include above those invoiced, in order to meet the 100% fiber quality warranty as outlined in this Specification. Testing shall be performed on the fibers, as terminated on the FDP's and FPP's. All necessary test equipment shall be provided by the Contractor to perform tests to include, but not limited to, the following: Optical attenuation 1,300 and 1,500 nm for the single mode cable. Optical Time Domain Reflectometer (OTDR) records (labeled and identified), electronic file and computer printer/plotter output. Test shall be conducted for both directions of transmission. All OTDR tests shall be made with an OTDR approved by the Engineer. 5. Test Procedure. The Contractor shall prepare and submit all test procedures and data forms for the pre-installation and post-installation tests to the Engineer for approval. The Contractor shall furnish data forms containing all of the data taken, as well as quantitive results for all tests. The data forms shall be signed by an authorized representative of the Contractor. At least one copy of the data forms shall be sent to the Engineer. The testing shall also be in accordance with Special Specification, "Testing, Training, Documentation, Final Acceptance and Warranty." 4. Training Class. The Contractor shall conduct a training class (minimum of 40 hours) for up to 10 representatives designated by the Traffic Management Section (TxDOT) on procedures of installation, splicing, terminating and testing of fiber optic cable. Training material shall include, as a minimum, code compliance, pulling and installation techniques, 13-14 1438
use of installation tools, splicing and terminating equipment and test instruments and methods of recording installation and test data. The Contractor shall submit, to the Engineer for approval, 10 copies of the training material at least 30 days before the training begins. The training shall also be in accordance with Special Specification, "Testing, Training, Documentation, Final Acceptance and Warranty." 5. Warranty. The warranty shall be in accordance with Special Specification, "Testing, Training, Documentation, Final Acceptance and Warranty." 6. Measurement. The fiber optic cable (singlemode and multimode) will be measured by the linear foot of cable furnished, installed, spliced, connected, and tested in accordance with these specifications. Multi-fiber (6 sm or 12 sm) pigtails shall be measured by the linear foot of pigtail furnished, in a configuration as shown on the plans with 6 or 12 factory installed connectors on one end. Additional lengths required shall be provided at no additional cost. All fiber optic accessories, equipment, and test equipment shall be measured by each unit. 7. Payment. The work performed and materials furnished for fiber optic cable will be measured as provided under "Measurement" and will be paid for at the unit price bid for "Fiber Optic Cable" of the type and size specified. This price shall be full compensation for furnishing, and installing all cable, for pulling through conduit or duct, testing, splicing, connecting, and for all materials, labor, tools, equipment, documentation, training and incidentals necessary to complete the work. The work performed and materials furnished for fiber optic pigtails, patch cords, patch panels, distribution panels, splice closures, accessories, and test equipment will be measured as provided under "Measurement" and will be paid for at the unit price bid for "Fiber Optic Pigtail" of the type specified, "Fiber Optic Patch Cord," "Fiber Patch Panel" of the type specified, "Fiber Distribution Panel" of the type specified, and "Fiber Optic Splice Enclosure." These prices shall be for full compensation for furnishing, installing, testing, and training of all non-cable items, and for all materials, labor, tools, equipment, documentation, training, and incidentals necessary to complete the work. 14-14 1438