OSP 001 PRACTICE TEST | 100% Correct Answers | Verified | Latest 2024 Version

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). - True placing all of the conduits during the initial conduit system installation is desirable, if not mandatory. *True *False - True It is not always necessary to build new pathways for cable placement *True *False - True The length of a cable loop from the switch to a customer depends on three factors - • Resistance of the cable in ohms • Signaling limits of the telephone and the terminating device switch in ohms • Pair loading Outside Plant (OSP) - Telecommunications OSP cabling began with the placement of the first telegraph system, Cable Types - • 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 - rules specified by governmental entities Installation manuals are examples of - Methodology Support structures: - - MHs). - (HHs). - Poles, support strands, and guying information. The basic types of OSP pathways and spaces are: - • Underground. • Direct-buried. • Aerial. advantage to use optical fiber in backbones campus applications: - • 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: - • LC • SC • ST How to calculate passive cable system attenuation - Total optical fiber loss + Total connector loss+ Total splice loss Calculate link loss budget - System gain - Power penalties Splice loss values - 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 - designs can be single tube or multitube ,the fiber is bound in a flat array Tight-buffered fibers - 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. - 15 m (50 ft) NEMA - National Electrical Manufacturers Association Most blown fiber systems publish maximum blowing distances of ____________ without employing advanced blowing techniques. - 1 km (3281 ft) ITU G.652D - Singlemode, low water, nondispersion-shifted fiber [NDSF] ITU G.655a and b - Singlemode, nonzero dispersion-shifted fiber (NZDSF) Cable core design - - Filled- Dry water block - Nonfilled Sheath design - - Optical power ground wire (OPGW) - All-dielectric self-supporting (ADSS) - Dielectric - Self-supporting - Armored self-supporting - Metallic Oversheath design - - Stainless steel - Coated steel - Nothing over sheath - Self-supporting Wavelength - - Multimode 850/1300 nm - Singlemode 1310/1550 nm - Singlemode, dispersion shifted 1550 nm optical fiber color-code - Fiber Color 1 Blue 2 Orange 3 Green 4 Brown 5 Slate 6 White 7 Red 8 Black9 Yellow 10 Violet 11 Rose 12 Aqua tight-buffered contains both singlemode and multimode fibers - singlemode fibers -- yellow multimode fibers -- orange American wire gauge (AWG) - 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: - • Resistance of the cable in ohms • Signaling limits of the telephone and the terminating device switch in ohms • Pair loading GACAN limits usage to no more than ______ cable gauges - two Insulation Type - PIC (Solid plastic insulation) DEPIC (Dual-expanded plastic insulation) Pulp (Paper insulation) Foam (Single layer of expanded plastic insulation) Foam-skin (Dual plastic insulation consisting of an inner foamed layer and an outer solid skin layer) PVC (Solid PVC insulation)Broadband twisted-pair telecommunications cables - typically used to transport broadband services from a remote switch to the end user. Baseband Twisted-Pair Telecommunications Cable - necessary to provide horizontal distribution cabling connectivity to a work area or device that utilizes a pathway outside of a building. Methods for placing cable on pole lines include - • Lash new cable to a new support strand. • Overlash new cable to an existing support strand/cable. • Use a self-supporting type cable that contains a support strand. Direct-buried OSP cables are subject to different and harsher environmental conditions than those of aerial or underground (in conduit) cables *True *False - True some areas that must be addressed when installing direct-buried cables - Moisture rodent damage lightning When installed in locations having a low to moderate risk of damage from the environment, typical OSP cables are designed for a life expectancy of ____ - 30 years Aerial drop wire—Used for runs less than _____ Aerial distribution wire—Used for runs of ______ or more - 213 m (699 ft). Aerial drop wire is typically - **Single-paired 18 AWG [1.0 mm (0.039 in)] copper-steel conductors. • Protected by black outer jacket. **Multipaired 22 AWG [0.64 mm (0.025 in)] or 24 AWG [0.51 mm (0.020 in)] solid-copperconductors are: • 2, 3, 5, and 6 solid copper pairs. • Air core or filled. • Foil or metallic shield (optional). • Equipped with support strand or supported by its own sheath. When determining the size and type of coaxial cable, the two major factors an OSP designer has to consider - * attenuation margin * cost the last and most important piece of any network. It is also the final piece of cable that an OSP designer has to choose. - The subscriber service