Bicsi Installer 2, Copper, Chapter 2 Exam Latest Updated

structured cabling system (SCS) - ANSWER-is the complete coniguration of cabling and associated connecting hardware installed to provide a comprehensive information and communications technology (ICT) systems infrastructure that transports information for multiple systems. ICT - ANSWER-information and communication technology SCS infrastructure is intended to serve a wide range of applications, including: - ANSWER-• Analog, plain old telephone services. • Digital telephone services (e.g., voice over Internet protocol [VoIP]). • Uniied messaging solutions. • Videoconferencing. • Power over Ethernet (PoE). • Computer networking. • Building automation systems (BAS). • Building management systems (BMS). • Audiovisual systems. AP - ANSWER-access provider SP - ANSWER-service provider An AP is - ANSWER-a company (e.g., telephone, local exchange carrier, broadband services, cable TV [CATV]) that provides a physical (copper or optical fiber cabling) or wireless circuit path to the site. demarcation point - ANSWER-The point at which the AP cabling meets the client's cabling infrastructure An SP is - ANSWER-the operator of any service that furnishes telecommunications content delivered over AP facilities. Standards provide the following beneits: - ANSWER-• Consistency of design and installation. • Conformance to physical and transmission requirements. • A basis for examining a proposed system expansion. • Uniform documentation. An SCS includes most or all of the following components: - ANSWER-• Backbone cabling and associated pathways. • Cross-connection facilities. • Interconnection facilities • Horizontal cabling and associated pathways • Work areas. • Telecommunications outlets/connectors. • Consolidation points (CPs). • Multi-user telecommunications outlet assemblies (MUTOAs). • Transition points (TPs). • Centralized cabling. • Distributed cabling. • Administration (e.g., labeling, documentation). Backbone Cabling - ANSWER-the cabling and related components that are used between the spaces within an ICT systems cabling structure, such telecommunications rooms (TRs), equipment rooms (ERs), and telecommunications enclosures (TEs), that handle the majority of network trafic. Backbone cabling consists of - ANSWER-backbone cables, intermediate cross-connect (IC [building distributor (BD)]), main cross-connect (MC [campus distributor (CD)]), mechanical terminations, patch cords or jumpers used for backbone-to-backbone cross-connection, cabling between buildings. There are two types of backbone cabling: - ANSWER-• Interbuilding backbone cabling distributes telecommunications services between buildings. • Intrabuilding backbone cabling distributes telecommunications services between telecommunications spaces (e.g., ER, TR) within a single building. Δ = - ANSWER-Work area AP = - ANSWER-Access provider EF = - ANSWER-Entrance facility ER = - ANSWER-Equipment room HC (FD) = - ANSWER-Horizontal cross-connect (floor distributor) IC (BD) = - ANSWER-Intermediate cross-connect (building distributor) MC (CD) = - ANSWER-Main cross-connect (campus distributor) SP = - ANSWER-Service provider TE = - ANSWER-Telecommunications enclosure TR = - ANSWER-Telecommunications room A first-level backbone consists of - ANSWER-cabling that is installed between an MC (CD) and an IC (BD) or a horizontal cross-connect (HC [floor distributor (FD)]). A second-level backbone is - ANSWER-a cable that is installed between an IC (BD) and an HC (FD) HC (FD) = - ANSWER-Horizontal cross-connect (floor distributor) IC (BD) = - ANSWER-Intermediate cross-connect (building distributor) MC (CD) = - ANSWER-Main cross-connect (campus distributor) The main components of backbone cabling are: - ANSWER-• Cabling pathways • Cables • Connecting hardware Cabling pathways— - ANSWER-Raceways, cable trays, penetrations (e.g., sleeves, slots), and cable supports that provide support and routing space for cabling. Cables— - ANSWER-Optical fiber, balanced twisted-pair, coaxial, or some combination of these cables. Connecting hardware— - ANSWER-Connecting blocks, patch panels, interconnections, cross- connections, patch cords, equipment cords, or some combination of these components. There are many different types of backbone cable: - ANSWER-• Multimode optical fiber cable • Singlemode optical fiber cable • 100-ohm balanced twisted-pair copper cable Multimode optical fiber cable— - ANSWER-The recommended multimode optical fiber cable is graded- index optical fiber with a nominal 50/125 micron (µm) core/cladding diameter Singlemode optical fiber cable— - ANSWER-Singlemode cables are typically a zero dispersion wavelength around 1310 nanometers (nm) but also can be used in the 1550 nm region. 100-ohm balanced twisted-pair copper cable— - ANSWER-It is recommended for backbone that the balanced twisted-pair cable consist of a minimum of 24 American wire gauge (AWG [0.51 millimeters (mm [0.020 inches (in)])]) solid copper conductors ISO application classes Application Class Class A - ANSWER-up to 100 kHz Basic telephony systems ISO application classes Application Class Class B - ANSWER-up to 1 MHz ITU-T Rec. I.430, I.431, ISO/IEC 8802-3 ISO application classes Application Class Class C - ANSWER-up to 16 MHz 10BASE-T ISO application classes Application Class Class D - ANSWER-up to 100 MHz 1000BASE-T ISO application classes Application Class Class E - ANSWER-up to 250 MHz 1000BASE-T ISO application classes Application Class Class EA - ANSWER-up to 500 MHz 10GBASE-T ISO application classes Application Class Class F - ANSWER-up to 600 MHz 10GBASE-T ISO application classe Application Class Class FA - ANSWER-up to 1 GHz 10GBASE-T ISO application classes Application Class Class I/II - ANSWER-up to 2 GHz 40GBASE-T TIA Cabling Categories/ISO Classes