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I <br /> 1 <br /> 1 <br /> 2 The following information shall be documented for each fiber test <br /> 3 measurement: <br /> 4 <br /> 5 1. Fiber/Strand # <br /> 6 2. Fiber type (Singlemode or Multimode) <br /> 7 3. Cable, tube, and fiber IDs <br /> 8 4. Near end and far end test locations <br /> 9 • Use device names in Contract plans111 <br /> 10 5. End-to-end attenuation <br /> 11 • In each direction and the bidirectional average <br /> 12 6. Length of span being tested <br /> 13 7. Date, time, and operator <br /> 14 8. Wavelength <br /> 15 <br /> 16 Optical Time Domain Reflectometer(OTDR) Testing <br /> 17 An optical time domain reflectometer (OTDR) with recording capability <br /> 18 shall be utilized to test the end-to-end transmission quality of each optical <br /> 19 fiber. Quality tests shall consider attenuation, reflectance, and <br /> 20 discontinuities. The OTDR shall be equipped with 1310 nanometer and <br /> 21 1550 nanometer light sources for singlemode optical fibers. The OTDR <br /> 22 shall be capable of providing electronic and hard copy records of each <br /> 23 test measurement. <br /> 24 <br /> 25 The Contractor shall utilize a dead-zone box (a.k.a. launch reel) I <br /> 26 containing 1 km of optical fiber, when performing OTDR tests. The dead- <br /> 27 zone box shall be located between the OTDR and the fiber optic <br /> 28 connector of each strand tested. S <br /> 29 <br /> 30 Each new fiber shall be tested in both directions at the 1310 and 1550 <br /> 31 nanometer wavelengths. Existing fibers that are spliced to or re-spliced as <br /> 32 part of this contract shall also be tested in both directions and at both <br /> 33 wavelengths. <br /> 34 <br /> 35 The following information shall be documented for each fiber test <br /> 36 measurement: <br /> 37 <br /> 38 1. Fiber/Strand # <br /> 39 2. Fiber type (Singlemode or Multimode) <br /> 40 3. Cable and fiber IDs <br /> 41 4. X-Y plot scaled for fiber length <br /> 42 • The X-axis (Distance) shall be scaled such that the beginning <br /> 43 of the trace starts with the OTDR/dead-zone interface. The <br /> 44 end of the trace shall extend no more than 1 km beyond the <br /> 45 end of the test span. <br /> 46 • The Y-axis (dB) shall be set to maximize the trace. The <br /> 47 bottom of the Y scale shall begin above the noise floor and <br /> 48 the top of the scale shall be no more than 5 dB higher than <br /> 49 the largest event. No events or reflections shall be cut off. <br /> 50 5. Near end and far end test locations <br /> 415'STREET TO WMVD FREIGHT <br /> CORRIDOR IMPROVEMENTS <br /> FED AID#STPUL-9931(012); PW#3472 SP-108 February 10,2016 <br />