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EXHIBIT "B" <br />FIBER SPECIFICATIONS AND CONNECTION DETAILS <br />FIBER: <br />ATRUE COPY <br />CERTIFICATION ON LAST PAGE <br />J.R. SMITH, CLERK <br />All Fiber will meet or exceed the Corning SMF -28, dual 1310/1550 window optical glass <br />specifications: <br />Maximum attenuation for 1310 nm systems will be .35 dB/km <br />Maximum attenuation for 1550 nm systems will be .25 dB/km <br />SPAN SPECIFICATIONS: <br />Discontinuities (known as steps, Splices, or attenuation non -uniformities) shall be measured with <br />an Optical Time Domain Reflectometer (OTDR) to- determine the loss for the localized attenuation. <br />No Fiber shall show a point discontinuity greater than 1.0 dB. However, a Fiber Span that includes <br />a discontinuity in excess of specifications may still be considered acceptable, with mutual <br />agreement of LICENSOR and LICENSEE, provided said Fiber still meets LICENSEE's overall <br />attenuation and dispersion specifications. <br />Performance levels will be maintained as accepted through the duration of the Agreement. <br />GENERAL CONSTRUCTION: <br />OPTICAL <br />SYSTEM LOSS TABLE <br />WAVE <br />MAXIMUM <br />MAXIMUM <br />AVERAGE <br />MAXIMUM <br />AVERAGE <br />LENGTH <br />FIBER <br />CONNECTOR <br />Loss PER <br />Loss PER <br />Loss PER <br />NM <br />Loss/KM <br />Loss <br />SECTION <br />SPLICE <br />SPLICE <br />1310 <br />.35dB <br />.5 dB <br />.06 dB <br />.2 dB <br />.06 dB <br />1550 <br />.25 dB <br />.5 dB <br />.06 dB <br />.2 dB <br />.06 dB <br />The Fiber will be constructed in accordance with sound commercial practices. The National <br />Electric Safety Code will be followed in every case except where local regulations are more <br />stringent, in which case local regulations shall govern. <br />Optical and span test data, including OTDR traces, will be submitted by LICENSOR to <br />LICENSEE at an agreed upon schedule. <br />116402757.1 <br />