OSP-001 PRACTISE TEST SOLVED 100%

in areas where future excavation is anticipated, it may be advisable to place the cable at a greater depth. For example, if road grading that will remove 610 mm (24 in) of dirt is planned in a particular area, it would be wiser to initially place the cable at 1.2 m (4 ft) versus the standard 610 mm (24 in). - ANSWER-True placing all of the conduits during the initial conduit system installation is desirable, if not mandatory. *True *False - ANSWER-True It is not always necessary to build new pathways for cable placement *True *False - ANSWER-True The length of a cable loop from the switch to a customer depends on three factors - ANSWER-• Resistance of the cable in ohms • Signaling limits of the telephone and the terminating device switch in ohms • Pair loading Outside Plant (OSP) - ANSWER-Telecommunications OSP cabling began with the placement of the first telegraph system, Cable Types - ANSWER-• Optical fiber: - 62.5/125 micrometer (μm) multimode optical fiber (OM1). - 50/125 μm multimode optical fiber (OM2, OM3, and OM4). - Singlemode optical fiber (OS1 and OS2). • 100-ohm balanced twisted-pair. • 75-ohm coaxial. Codes - ANSWER-rules specified by governmental entities Installation manuals are examples of - ANSWER-Methodology Support structures: - ANSWER-- MHs). - (HHs). - Poles, support strands, and guying information. The basic types of OSP pathways and spaces are: - ANSWER-• Underground. • Direct-buried. • Aerial. advantage to use optical fiber in backbones campus applications: - ANSWER-• Increased distance. • Higher bandwidth applications. • All-dielectric cable. • Less susceptibility to EMI and lightning. • No crosstalk. • No grounding (earthing) requirement for all-dielectric cable. Optical Fiber Connectors: - ANSWER-• LC • SC • ST How to calculate passive cable system attenuation - ANSWER-Total optical fiber loss + Total connector loss + Total splice loss Calculate link loss budget - ANSWER-System gain - Power penalties Splice loss values - ANSWER-MM SM SP type Avr. max. Avr. max. Fusion 0.05 0.3 0.05 0.3 Mecha 0.10 0.3 0.10 0.3 Ribbon fiber - ANSWER-designs can be single tube or multitube ,the fiber is bound in a flat array Tight-buffered fibers - ANSWER-have a 900 μm coating applied directly to the optical fiber. A transition point shall be required for unlisted OSP cable when the termination point is greater than _________ from the point of entrance and the cable cannot be installed in a properly rated conduit. - ANSWER-15 m (50 ft) NEMA - ANSWER-National Electrical Manufacturers Association Most blown fiber systems publish maximum blowing distances of ____________ without employing advanced blowing techniques. - ANSWER-1 km (3281 ft) ITU G.652D - ANSWER-Singlemode, low water, nondispersion-shifted fiber [NDSF] ITU G.655a and b - ANSWER-Singlemode, nonzero dispersion-shifted fiber (NZDSF) Cable core design - ANSWER-- Filled - Dry water block - Nonfilled Sheath design - ANSWER-- Optical power ground wire (OPGW) - All-dielectric self-supporting (ADSS) - Dielectric - Self-supporting - Armored self-supporting - Metallic Oversheath design - ANSWER-- Stainless steel - Coated steel - Nothing over sheath - Self-supporting Wavelength - ANSWER-- Multimode 850/1300 nm - Singlemode 1310/1550 nm - Singlemode, dispersion shifted 1550 nm optical fiber color-code - ANSWER-Fiber Color 1 Blue 2 Orange 3 Green 4 Brown 5 Slate 6 White 7 Red 8 Black 9 Yellow 10 Violet 11 Rose 12 Aqua tight-buffered contains both singlemode and multimode fibers - ANSWER-singlemode fibers -- yellow multimode fibers -- orange American wire gauge (AWG) - ANSWER-AWG Metric Imperial 19 AWG 0.91 mm 0.036 in 22 AWG 0.64 mm 0.025 in 24 AWG 0.51 mm 0.020 in 26 AWG 0.41 mm 0.016 in The length of a cable loop from the switch to a customer depends on three factors: - ANSWER-• Resistance of the cable in ohms • Signaling limits of the telephone and the terminating device switch in ohms • Pair loading