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44 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What function does the Telecommunications Outlet/Connector cable perform in a residential telecommunications system?
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The telecommunications outlet/connector cable provides the transmission path from the DD to the telecommunications outlet/connector.
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24-10
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What does a cable qualification test determine?
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Cable qualification tests the cabling to determine that certain network technologies (e.g. 1000BASE-T, 100BASE-T, Firewire, etc.) will perform on the cabling system.
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24-27
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Which jack-pin configuration should be used when terminating balanced twisted-pair cabling at the telecommunications outlet/connector?
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Using the T568A configuration will accommodate a multitude of telecommunications systems including one-line and two-line telephone sets.
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24-26
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What types of media are provided in a Grade 1 residential cabling system?
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- One, minimum Cat-5e, 4-pair balanced twisted-pair cable and associated connectors
- One 75-ohm series 6 coaxial cable and associated connectors |
24-2
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What device is the ADO typically co-located with?
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- The Auxiliary Disconnect Outlet (ADO) is typically co-located with the Distribution Device (DD)
- The two can be combined into a single unit |
24-8
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Where should the CTR be located in an MDU?
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A Common Telecommunications Room (CTR) should be located on each floor or every third floor, thus serving the floor it is on and the floors above and below. The CTR should be in a common area and easily accessible.
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24-14
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What four elements of a residential telecommunications system are installed during the cabling rough-in?
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- Distribution Device (DD)
- Auxiliary Disconnect Outlet (ADO) cabling - Telecommunications outlet/connector cabling - Mounting hardware (e.g. wall boxes) |
24-23
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What is the maximum distance a residential cabling system can extend between the demarcation point (DP) and the farthest telecommunications outlet/connector before the designer must contact the access provider to ensure that transmission can be met?
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150 m (492 ft)
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24-6
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Can the DD be located in the garage of a single-family home?
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- only if the space is conditioned (temperature and humidity controlled)
- The Distribution Device (DD) must be installed in a conditioned space |
24-8
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Can a TP or CP be used in a residential telecommunications system?
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Yes, a telecommunications outlet/connector cable may be connected through a transition point (TP) or a consolidation point (CP)
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24-10
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For single family residences, where is the demarcation point (DP) typically located?
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On the outside of an exterior building wall
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24-6
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Where is the ADO cable located in a residential telecommunication system?
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The ADO cable extends from the backbone termination or the Network Interface Device (NID) to an ADO which typically resides in the Distribution Device (DD).
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24-7
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Where do backbone and ADO cables typically terminate in the an MDU?
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The Common Telecommunications Room (CTR) is the space where backbone and Auxiliary Disconnect Outlet (ADO) cables terminate
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24-14
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What would be the minimum dimensions of a plywood backboard used as a DD in a Grade 1 residential telecommunications system with 15 TOs?
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914 mm (36 in) high x 405 mm (16 in) wide
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24-9
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In addition to the required types of cabling used in a Grade 2 residential telecommunications system, what other types of cabling are recognized?
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- Multimode optical fiber
- Security cabling - Speaker cabling - Control cabling |
24-4
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What is the minimum electrical requirement to facilitate Fiber-to-the-Home (FTTH)?
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A dedicated 15-ampere (A), 120-volt (V) ac nominal, non-switchable duplex electrical outlet must be provided within 1.5 m (5 ft) of the entry point into the home.
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24-10
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What are the four types of cable recommended for use in the backbone of a residential telecommunications system?
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- 100-ohm balanced twisted-pair
- multimode optical fiber - singlemode optical fiber - trunk, feeder and distribution coaxial cable |
24-6
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What does the EF consist of in an MDU?
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The Entrance Facility (EF) consists of the telecommunications service entrance to the building, including the entrance point through the building wall and continuing to the Common Equipment Room (CER)
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24-13
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What is the minimum additional space per tenant unit required in a Grade 1 CTR for an MDU with more than fiver units?
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32,000 mm2 (50 in2)
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24-14
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What is the Distribution Device (DD) as it relates to a residential telecommunications system?
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The DD is a facility used for the termination and connection of outlet cables, DD cords, equipment cords and in some cases, ADO cables.
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24-8
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What would be the minimum height of a commercial DD in a Grade 2 residential telecommunications system with 10 TOs?
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2007 mm (79 in)
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24-9
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What does Grade 2 residential telecommunication cabling provide?
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A generic cabling system that meets the requirements for current and developing basic, advanced and multimedia telecommunications services
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24-3
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In a residential Telecommunications system, what device can be used by the system owner to test the service provided by the AP?
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A Network Interface Device (NID) can be used by the Owner to test the Access Provider (AP)
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24-13
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How might the design of a residential cabling system incorporate plans for future telecommunications outlet/connectors or expansion of the home or building structure?
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Place raceways of sufficient size from a Distribution Device (DD) to the area(s)
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24-2
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At what height should a telecommunications outlet/connector (TO) be mounted in a residential telecommunications system?
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Telecommunications outlet/connector (TOs) should be installed at the same height as nearby electrical outlets
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24-24
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To provide for future growth, the DD should be designed to allow for what percentage of additional future cables?
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20 to 50 percent
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24-8
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In a residential telecommunications system, how many telecommunications outlets should be installed in each living area?
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At least one
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24-4
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Within what distance of the conductive cable terminations must access to the building electrical ground be provided in the EF?
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Access to the building electrical ground must be provided within 1.5 (5 ft) of the conductive cable terminations in the EF in accordance with the applicable codes.
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24-14
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Who is typically responsible for determining the location of the network interface?
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The location of the network interface is typically determined by:
- Access Provider (AP) - Builder in the case of: Subdivisions Multi-dwelling buildings |
24-23
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What does Grade 1 residential telecommunication cabling provide?
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A generic cabling system that meets the minimum requirements for telecommunications services.
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24-2
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What is the Telecommunications Outlet/Connector (TO) as it relates to a residential telecommunications system?
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A TO is the interface for the tenant to connect premises equipment
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24-12
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How many grades of residential premises telecommunications cabling are there?
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2
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24-2
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In which topology should the cabling associated with both grades of residential cabling be installed?
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The cabling associated with both grades of residential cabling is to be placed in a star topology
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24-3
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What are five examples of mounting hardware in a residential telecommunications system?
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- device boxes
- plaster rings - service boxes - bushings in wall studs - other hardware that is permanently attached to the building |
24-24
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What does residential premises cabling system acceptance testing include?
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- visual examination and verification of all cabling
- qualification or certification of copper data cabling - certification of optical fiber data cabling |
24-27
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At what height should a wall-mounted telephone jack be mounted in a residential telecommunications system?
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Wall mounted telephone jacks should be installed at 1220 mm (48 in) to 1320 (52 in) above the floor
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24-24
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As an alternative to a star topology, what other topology may be used to deploy a coaxial backbone?
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Coaxial backbone cable may be implemented using a star or bus topology
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24-6
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What is the demarcation point (DP) as it relates to residential cabling?
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The demarcation point (DP) is the point of interface between Access Provider (AP) and the owner of homes, MDUs and campuses
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24-6
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Access to the building electrical ground should be in accordance with applicable codes and within what distance of the DD for residential telecommunications systems?
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1.5 m (5 ft)
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24-8
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At a minimum, what types of media are provided in a Grade 2 residential cabling system?
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- A minimum of two, Cat-5e or better, 4-pair balanced twisted-pair cables and associated connectors
- Two 75-ohm series 6 coaxial cables and associated connectors |
24-2
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As an alternative to a start topology, what other topology may be used to deploy an optical fiber backbone?
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Optical fiber backbone cable may be implemented using a star or ring topology
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24-6
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What is considered a living area as it relates to residential telecommunication systems?
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Any room in which voice/data/video (VDV) applications may be used. This includes bedrooms, kitchens, dens, studies, home offices and living/family rooms
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24-4
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What is required on all metallic cables leaving or entering the EF?
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Primary Protection is required for each conductive cable entering or leaving the Entrance Facility (EF)
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24-14
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What is the minimum space required for a Grade 2 CTR in an MDU with up to five units?
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775 mm (30.5 in) wide x 610 mm (24 in) high
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24-14
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