SECTION 271323 - COMMUNICATIONS OPTICAL FIBER BACKBONE CABLING PART 1 - GENERAL 1.1 DESCRIPTION A. This section provides the specifications for the work related to the optical fiber system in the project. The testing of fiber optics is described in another section. B. The Owner shall be issued a 25 year applications assurance warranty from the specified manufacturer for parts and labor covering the optical fiber cabling plant in the building. C. The optical fiber in the intrabuilding risers is a combination of singlemode and multimode optical fiber and shall be provided in a hybrid configuration under one cable jacket. D. The Contractor shall provide a complete installation including all consumables, buffer tube fan out kits, crimp bands, boots, tool kits, and miscellaneous components. 1.2 APPLICABLE DOCUMENTS A. The following documents of latest issue form a part of this specification to the extent specified herein. PART 2 - PRODUCTS 1. EIA-STD-RS-455: Standard Test Procedures for Fiber Optic, Fibers, Cables, Transducers, Connecting and Terminating Devices. 2. EIA-STD-RS-359: Standard Colors for Color Identification and Coding. 3. MIL-STD-202: Test Methods for Electronic and Electrical Component Parts. 4. MIL-STD-454: Standard General Requirements for Electronic Equipment. 5. MIL-STD-8 10: Environmental Test Methods and Engineering Guidelines. 6. UL Subject 1666: Standard Flame Test for Flame Propagation Height of Electrical and Optical Cable Installed Vertically in Shafts. 7. EIA/TIA -STD-455 for fiber optic cables. 2.1 MANUFACTURERS A. Products: Subject to compliance with requirements, provide the following products. 1. Optical fiber glass - singlemode a. Coming, model number SMF-28e 2. Optical fiber glass - multimode a. Coming, model number InfiniCor SX+ (SX300) OPTICAL FIBER BACKBONE CABLING 271323-1
3. Indoor/Outdoor plenum rated gel-free optical fiber cable a. Coming Cable Systems, model number FREEDM One OXXS8P-31180-29 4. Plenum rated optical fiber cable a. Coming Cable Systems, plenum cable with optical fiber glass as specified. 5. Optical fiber connector housing a. Coming Cable Systems, model number PCH-04U 6. Optical fiber connector panel a. Singlemode LC connector panel: Coming Cable Systems, model number CCH- CP12-A9 b. Multimode LC connector panel: Coming Cable Systems, model number, CCH- CP12-E4 c. Panduit d. ADC e. Systimax 7. Epoxy polish LC type connector a. Coming Cable Systems 2.2 OPTICAL FIBER GLASS - SINGLEMODE A. Applicable standards: I. 2. ITU-T G.652 (Categories A, B, C & D) IEC Specifications 60793-2-50 Type B1.3 3. TIA/EIA 492-CAAB 4. Telcordia's GR-20 OPTICAL FIBER BACKBONE CABLING 271323-2
B. The singlemode optical fiber utilized in the cables specified herein shall conform to the following specifications: 1. Optical specifications: a. Maximum attenuation: 1) 0.4 db/km at 1310 nm 2) 0.3 db/km at 1550 nm b. Attenuation uniformity-no point discontinuity greater than 0.05 db at either 1310 nm or 1550 nm. c. Mode-field diameter: 1) 9.2 + 0.4 gm at 1310 nm 2) 10.4 + 0.5 pim at 1550 nm d. Cutoff wavelength: < 1260 nm 2. Dimensional specifications: a. Cladding diameter: 125.0 + 0.7 gm b. Core-clad concentricity: 0.5 gtm c. Cladding non-circularity: < 0.7% d. Typical core diameter: 8.2 jim. e. Coating diameter: 245 + 5 pm f. Coating-cladding concentricity: < 12pm 3. Environmental specifications: a. Temperature dependance: -60 degrees C to +85 degrees C b. Temperature humidity Cycle: -10 degrees C to +85 degrees C up to 98% RH c. Water immersion: 23 degrees C + 2 degrees C d. Heat aging: 85 degrees C + 2 degrees C e. Damp heat: 85 degrees C at 85% RH f. Operating temperature: -60 degrees C to +85 degrees C 4. Mechanical specifications: a. Tensile stress: greater than 100 kpsi 5. Performance specifications: a. Core diameter: 8.2 jim b. Numerical aperture: 0.14 c. Zero dispersion wavelength: 1313 nm d. Zero dispersion slope: 0.086 ps/(nm 2 xkm) e. Refractive index difference 0.36% f. Effective group index of refraction: 1.4677 at 1310 nm, 1.4682 at 1550 nm g. Fatique resistance parameter: 20 OPTICAL FIBER BACKBONE CABLING 271323-3
h. Coating strip force: 0.6 lbs dry, 0.6 lbs wet i. Rayleigh backscatter coefficient: -77 db 1310 nm, -82 db 1550 nm j. Individual fiber polarization mode dispersion: 0.02 ps/km 2 2.3 OPTICAL FIBER GLASS - MULTIMODE A. Optimized data rates: 1. 10 Gb/s at 300 m 2. 1 Gb/s at 1000 m B. Applicable standards: 1. ISO/IEC 11801 type OM3 fiber 2. IEC Specifications 60793-2-10 type Ala.2 fiber 3. TIA/EIA 492AAAC-A C. The multimode optical fiber utilized in the cables specified herein shall conform to the following specifications: 1. Optical specifications: a. Maximum attenuation: 1) 3.0 db/km at 850 nm 2) 1.5 db/km at 1300 nm b. High performance Effective Modal Bandwidth: 2000 MHz-km at 850 nm c. Legacy performance Effective Modal Bandwidth: 1500 MHz-km at 850 nm and 500 MHz-km at 1300 nm 2. Dimensional specifications: a. Core diameter: 50.0 + 2.5 im b. Cladding diameter: 125.0 + 2.0 jtm c. Coating diameter: 245 ± 5 jim d. Core-clad concentricity: _< 1.5 [tm e. Cladding non-circularity: < 1.0% f. Core non-circularity: < 5% g. Coating-cladding concentricity: < 12ptm 3. Environmental specifications: a. Temperature dependance: -60 degrees C to +85 degrees C b. Temperature humidity Cycle: -10 degrees C to +85 degrees C up to 98% RH c. Water immersion: 23 degrees C + 2 degrees C d. Heat aging: 85 degrees C + 2 degrees C e. Damp heat: 85 degrees C at 85% RH f. Operating temperature: -60 degrees C to +85 degrees C OPTICAL FIBER BACKBONE CABLING 271323-4
4. Mechanical specifications: a. Tensile stress: greater than 100 kpsi 5. Performance specifications: a. Refractive index difference 1% b. Effective group index of refraction: 1.481 at 850 nm, 1.476 at 1300 nm c. Fatique resistance parameter: 20 d. Coating strip force: 0.6 lbs dry, 0.6 lbs wet e. Rayleigh backscatter coefficient: -68 db at 850 nm, -76 db at 1300 nm 2.4 INDOOR/OUTDOOR PLENUM RATED GEL-FREE OPTICAL FIBER CABLE A. This cable shall be used for multi-purpose trunking applications in underground duct systems. B. The cable shall be of tight buffered design with water blocked construction with water swellable yams and tape. C. The outer jacket shall be UV resistant flame retardant. D. The construction shall be all-dielectric requiring no bonding or grounding. i E. The buffer tube size shall be shall be standard 3.0 mm containing a maximum of 12 optical fiber strands. F. Maximum tensile loads: 1. Short term: 2700 N 2. Long Term: 890 N G. Applicable standards: 1. RUS 7 CFR 1755.900 2. ANSIICEA S-87-640 2.5 PLENUM RATED OPTICAL FIBER CABLE A. This cable shall be used for intrabuilding and interbuilding optical fiber trunks provided inside the buildings as required. B. The cable shall consist of multifiber cabling utilizing loose tube construction with fibers surrounded by dielectric strength and central members and a flame retardant outer jacket. C. The construction shall be all-dielectric requiring no bonding or grounding. D. The cable shall be available preconnectorized from the factory. E. Maximum tensile load: 1. Installation: 600 lbs. OPTICAL FIBER BACKBONE CABLING 271323-5
2. Long term: 135 lbs. F. Minimum bend radius: 1. Installation: 7.6 inches 2. Long term: 5.1 inches G. Applicable standards: 1. Flame Resistance: UL-1 666 for plenum building applications 2. OFNP Listed in accordance with NEC Article 770 3. ICEA S-83-596 4. EIA/TIA 568, TSB 36 2.6 OPTICAL FIBER CONNECTOR HOUSING A. This equipment shall be used for housing optical fiber terminations and crossconnects for optical fibers to equipment and trunk cables. B. The connector housing shall be rack mountable in standard 19in. equipment racks. C. The enclosure shall be of 16 gauge cold rolled steel construction with black powder coat finish. D. The connector housing shall be four rack units high and accept twelve connector panels. E. The connector housing shall contain an integral hinged jumper manager on the front of the unit. F. The connector housing shall have front and rear removable doors to enable easy installation and routing of trunk cables and patch cords. Cable entries shall be grommeted to reduce infiltration of dust. G. The front door shall be transparent for visual inspection of connectors. H. The unit shall include a universal cable clamp to provide cable strain relief. I. The unit shall include twelve blank connector panels and installation hardware. 2.7 OPTICAL FIBER CONNECTOR PANEL A. The connector panel shall be designed to accommodate all industry standard adapter types. B. The connector panel shall support six (6) duplex LC type multimode or singlemode coupling adapters. Each connector panel shall support a total of twelve (12) optical fiber strands. C. The multimode optical fiber adapter shall be suitable for laser optimized multimode fiber terminations. D. The adapter shall be constructed with a durable black powder coat finish. E. The connector panel adapters shall have ceramic insert sleeves and composite housing. OPTICAL FIBER BACKBONE CABLING 271323-6 0
F. The connector panel adapters shall facilitate ultra physical contact (UPC) connectors. G. The connector panel adapters shall be aqua colored for laser optimized multimode fiber and blue for singlemode UPC terminations. H. The connector panels shall be provided with colored icons for each adapter designating the type of optical fiber connection. Coordinate with the Owner to determine the appropriate icon colors for various connections. 2.8 EPOXY POLISH LC TYPE CONNECTOR A. The LC type connector shall be epoxy and mechanical polish heat cure type connectors for singlemode and multimode fiber strands. Terminations with fusion spliced pigtails or mechanical splicing with index matching gels shall not be permitted. The mechanical polish must meet ultra-polish physical contact (UPC) standards. B. The intrabuilding riser rated fiber optic trunks will be factory preterminated or field terminated to the required specifications. C. The connector shall have an RJ latch for easy connection. D. The connector shall meet the ANSI/TIA!EIA-568B.3 standard. E. The connector shall meet the TIA/EIA-604-1 0 standard. F. The connector shall have composite housing with ceramic ferrules. G. The connector insertion loss shall be less than 0.2 db for multimode and singlemode fibers. H. The connector shall have reflectance of less than -20 db for multimode fiber and less than -55 db for singlemode fiber. 1. Provide buffer tube fan-out kits to separate fiber strands for termination. Each kit shall include twelve (12) 25 in. colored 900gim tubes. Kits shall be provided that are suitable for indoor or outdoor rated fiber. J. Provide the LC connector color per the Owner's standard. PART 3 - EXECUTION 3.1 GENERAL A. All fiber installation must be in accordance with all applicable standards and manufacturer's recommendations. B. All fibers shall be properly terminated and tested. C. All cables must be of continuous length wherever possible. Splices shall not be allowed in fiber optic cables unless otherwise stated. OPTICAL FIBER BACKBONE CABLING 271323-7
D. All fiber cable bends shall have a radius of not less than ten (10) times the cable diameter and all cable must be installed according to manufacturer specifications. E. Contractor will properly label each fiber riser cable on each end noting far end destination, and all termination panels will be fully labeled with strand count identification. F. Fiber optic cables shall have a single reversal per pair, placed at the distant end. This reversal is intended to allow a signal placed on fiber strand #1 to appear on position #2 at the far end, and a signal placed on position #2 at the far end to appear on position #1 at the near end. This termination pattern matches the method used for Coming Cable Systems pre-terminated cables within data centers. G. All fiber optic cables shall be terminated using ceramic LC epoxy heat cure type connectors. These LC connectors are to be mechanically polished to factory, UPC (Ultra-polish Physical Contact) termination standards. This requires field installation of the LC epoxy connectors and field polishing to UPC standards. Connectors with an intervening connection such as mechanically spliced connectors with factory polished fiber stubs or pigtail fusion splicing do not meet the requirements of this section. 3.2 WARRANTY A. All fiber optic systems and components shall be warranted against all defects including material and labor for a specified warranty period in accordance with the required manufacturer's warranty for application assurance, parts, and labor for 25 year minimum. END OF SECTION 271323 OPTICAL FIBER BACKBONE CABLING 271323-8