Fiber Optic Specifications
All Fiber Optic shall be Corning Altos Single Mode OS1 Outdoor Loose Tube Gel Free Cable Corning Fiber Products only will be accepted and no substitutions or alternates will be accepted or considered.
There shall be a minimum of 12 Strands of Single Mode OS1 Fiber Terminated per Building and Dedicated as home run from each Fiber IDF to the Fiber MDF located in Building R, E, & F.
The Fiber Optic MDF will be located in Building R, E, & F where CNS MPOE is Terminated.
The following Buildings will be listed as Fiber IDF’s: A, B, C, D, G, H, I, J, K, L, M, N, O, P, Q, S Splice Points will be labeled as SP 1 – SP 6
There will be no Mechanical Splices or Mechanical Connectors All Fiber will be Fusion Spliced
Fiber Connector Terminations will be Factory made Pigtail Cassettes Fusion Spliced to Trunk or Branch Cabling
All Fiber Connector Terminations shall be LC type.
All Fiber Terminations are to be Rack Mounted in Customer Provided Wall Mount or Free Standing Racks or Data Cabinets.
All Exterior Fiber Cabling between buildings shall be installed in Customer provided conduit system.
All Interior Fiber Optic Cabling will be installed in above ceiling area within each building.
Customer Provided Conduit shall be no less than 4 inch in diameter and all bending or change of direction of conduit shall adhere to Fiber bend radius specifications.
There shall be a minimum of 40 feet of service loop secured in the above ceiling area at each end of each fiber cable run.
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The Fiber Cable Plant design will be as follows:
Star Topology
240 Strand Trunk cable will originate at MDF R, E, & F and connect to IDF S at SP 1 IDFs C, D, G, & H will be spliced to the 240 Strand Trunk Cable at IDF S at SP 1
IDF S 12 Strand Fiber Cassette will be spliced to the 240 Strand Trunk Cable at SP 1 192 Strand Trunk cable will connect IDF S to IDF A at SP 2
IDF B & Q will connect to IDF A SP 2
IDF A 12 Strand Fiber Cassette will be spliced to the 192 Strand Trunk Cable at SP 2 144 Strand Trunk Cable will connect IDF A to IDF N at SP 3
IDF N 12 Strand Fiber Cassette will be spliced to the 144 Strand Trunk Cable at SP 3 144 Strand Trunk Cable will connect IDF N to IDF M at SP 4
IDFs I, K, L, P will be spliced to the 144 Strand Trunk Cable in building M at SP 4 IDF M 12 Strand Fiber Cassette will be spliced to the 144 Strand Trunk Cable at SP 4 48 Strand Trunk cable will originate IDF M to IDF O at SP 5
IDF O 12 Strand Fiber Cassette will be spliced to the 72 Strand Trunk Cable at SP 5 48 Strand Trunk cable will originate IDF O to IDF J at SP 6
IDF J 12 Strand Fiber Cassette will be spliced to the 36 Strand Trunk Cable at SP 6
Each Fiber Strand will be Tested and Certified using Fluke Single Mode Fiber Tester and Test Results will be presented to Customer via USB Memory Device.
Each Fiber IDF will be Labeled per above listings and each Fiber Connector will be Labeled as IDF-X- YYY (Whereas X represents the IDF Name as listed above and YYY represents the Fiber Numerical Count as 001 – 244).
Contractor will provide 2 each 3 Meter, Duplex, LC to LC Fiber Patch Cords per each IDF Location.
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All Fiber Specifications are listed below and used as a minimum guideline.
Dimensional Specifications
Glass Geometry
Fiber Curl >4.0 m radius of curvature
Cladding Diameter 125.0 ± 0.7 µm
Core-Clad Concentricity < 0.5 µm
Cladding Non-Circularity < 0.7%
Coating Geometry
Coating Diameter 245 ± 5 µm
Coating-Cladding Concentricity <12 µm
Environmental Specifications
Environmental Test Test Condition Induced Attenuation
1310 nm, 1550 nm & 1625 nm (dB/km)
Temperature Dependence -60°C to +85°C* < 0.05 Temperature Humidity Cycling -10ºC to +85ºC* up to 98% RH < 0.05
Water Immersion 23º± 2ºC < 0.05
Heat Aging 85º± 2ºC* < 0.05
*Reference temperature = +23ºC
Operating Temperature Range: -60ºC to +85ºC
Optical Specifications
Fiber Attenuation
Maximum Attenuation
Wavelength Maximum Value*(nm) (dB/km)
1310 0.33 – 0.35
1383** 0.31 – 0.35
1490 0.21 – 0.24
1550 0.19 – 0.20
1625 0.20 – 0.23
*Maximum specified attenuation value available within the stated ranges.
**Attenuation values at this wavelength represent post-hydrogen aging performance.
Alternate attenuation offerings available upon request.
Attenuation vs. Wavelength
Range Ref. λ Max. α Difference
(nm) (nm) (dB/km)
1285 – 1330 1310 0.03
1525 – 1575 1550 0.02
The attenuation in a given wavelength range does not exceed the attenuation of the reference wavelength (λ) by more than the value α .
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Macro-bend Loss
Mandrel Number Wavelength Induced
Diameter of (nm) Attenuation*
(mm) Turns (dB)
32 1 1550 < 0.03
50 100 1310 < 0.03
50 100 1550 < 0.03
60 100 1625 < 0.03
* The induced attenuation due to fiber wrapped around a mandrel of a specified diameter.
Point Discontinuity
Wavelength Point Discontinuity(nm) (dB)
1310 < 0.05 1550 < 0.05
Cable Cutoff Wavelength (λccf)
Λ ccf ≤ 1260 nm
Mode-Field Diameter
Wavelength MFD
(nm) (µm)
1310 9.2 ± 0.4
1550 10.4 ± 0.5
Dispersion
Wavelength Dispersion Value
(nm) [ps/(nm • km)]
1550 < 18.0
1625 < 22.0
Zero Dispersion Wavelength (λ0): 1310 nm < λ0 < 1324 nm Zero Dispersion Slope (S0): < 0.092 ps/(nm 2• km)
Polarization Mode Dispersion (PMD)
Value (ps/√ km) PMD Link Design Value < 0.06*
Maximum Individual Fiber < 0.2
* Complies with IEC 60794-3: 2001, Section 5.5, Method 1, September 2001.
The PMD link design value is a term used to describe the PMD of concatenated lengths of fiber (also known as PMD Q). This value represents a statistical upper limit for total link PMD. Individual PMD values may change when cabled. Corning’s fiber specification supports network design requirements for a 0.5 ps/√ km maximum PMD.
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Performance Characterizations
Characterized parameters are typical values.
Core Diameter 8.2 µm
Numerical Aperture 0.14
NA is measured at the one percent power level of a one-dimensional far-field scan at 1310 nm.
Zero Dispersion
Wavelength (λ0) 1317 nm
Zero Dispersion Slope (S0) 0.088 ps /(nm 2•km) Effective Group Index 1310 nm: 1.4670 of Refraction (Neff) 1550 nm: 1.4677 Fatigue Resistance
Parameter (Nd) 20
Coating Strip Force Dry: 0.6 lbs. (3N)
Wet, 14-day room temperature:
0.6 lbs. (3N) Rayleigh Backscatter
Coefficient 1310 nm: -77 dB
(for 1 ns Pulse Width) 1550 nm: -82 dB Stimulated Brillouin
Scattering Threshold 20 dBm (1)
Notes:
(1) When characterized with a transmitter specifying 17 dBm SBS threshold over standard single-mode fiber. While absolute SBS threshold is a function of distance and signal format, SMF-28e+™ fiber with NexCortechnology offers a 3 dB improvement over standard single-mode fiber independent of these variables.
Mechanical Specifications
Proof Test
The entire fiber length is subjected to a tensile stress > 100 kpsi (0.7 GPa)*.
*Higher proof test levels available.
Length
Fiber lengths available up to 50.4* km/spool.
*Longer spliced lengths available.
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