Ch5Sec8 - THE FIBER FORUM Fiber Optic Communications...

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THE FIBER FORUM Fiber Optic Communications JOSEPH C. PALAIS PRESENTED BY
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Joseph C. Palais 5.8 2 Section 5.8 Optic Fiber Cables Cabling protects the fiber. Different environments require different amounts of protection. Greater protection costs more. Cabling should not increase the fiber’s attenuation. Tight cabling may cause microbending loss.
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Joseph C. Palais 5.8 3 OPTIC FIBER CABLES Types of Strengthening 1. Tensile strength Fibers are pulled into ducts Fibers need support when between poles 2. Crush resistance 3. Bending protection Cabling stiffens the structure limiting bend radii
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Joseph C. Palais 5.8 4 1. Abrasion protection Small cuts in glass can cause complete breakage 5. Vibration isolation Cables cushion the fiber Vibration increases loss and causes noise OPTIC FIBER CABLES
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Joseph C. Palais 5.8 5 OPTIC FIBER CABLES 1. Moisture and chemical protection These contaminants degrade the fiber, cable, and connectors 7. Rodent protection
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Joseph C. Palais 5.8 6 Various Forms of Cables 1. Single fiber, multifiber 2. Tight-buffer fiber, loose tube
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Ch5Sec8 - THE FIBER FORUM Fiber Optic Communications...

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