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Next Geiieration Net-,Alork Plan <br />Page 4 <br />A high-count fiber optic backbone, provides flex ibilitY <br />� and sicalability for future <br />a plications and networking technologies. In the past few le price of fiber optic <br />P yieffs, th ri <br />cable has declined creztinG a situation where the incremental cost of additional fiber <br />strands is marginal in the overall cost of fiber optic construction. The proposed backbone <br />11 <br />design for this study- is a 144 count fiber optic ring with path diversity into each of the <br />hub sites. Figure 1 shows the proposed ring design, which encompasses approximately <br />39 n-u'les of fiber optic cable construction. <br />Figure 1: Potential Physical Backbone Routing <br />Ar <br />ArOtin HR* 'l <br />tt t;l <br />01 <br />2M <br />- krr - -4 <br />RIB. <br />CL <br />PTA <br />lz� <br />... ... CA <br />FA 7A S4 <br />*A <br />New 131i I <br />76 <br />4W <br />14 <br />Nr* <br />Port <br />4j* <br />'T" <br />I D2 - <br /><Pso Rd. <br />CD, <br />�J <br />Oil <br />P 2. <br />62 • 21 . . . . . . . . . . n. <br />Wbod <br />z2 <br />61 <br />CL <br />St rilhorl. <br />1. <br />1_7 10 7111, <br />A t d vc,", Cout, 4l F�i <br />l <br />q <br />0. <br />V Fig <br />n AVO <br />!V <br />o, D <br />1 14' 11 Sa WW t1eq <br />From the backbone ring, fiber optic laterals are constructed to provide connectivity ,tothe <br />remaining NSCC sites. Minirm"zing lateral length has two bipnefit&: (1) 'it decreases the, <br />construction costs by decreasing the amount of fiber optic plant necidiad, and 1(2) it <br />increases the reliability of the network by shortening the s,inglie plio int of" failurn for fiber <br />optic cuts. <br />Lateral fiber optic connections are, small count fiber optic cables that provide connectivity <br />back to hub sites aDd central networkinIg equipmicnt. CTC recommends a mirlimum Of <br />all text and diagrams i(D CTC 2007 <br />