Chapter 5: Flashcards
Horizontal Distribution System, Section 1 – Horizontal Cabling System
In Horizontal Cabling Systems, A __________ consists of horizontal cabling, the horizontal pathways supporting the horizontal cabling, and the telecommunications spaces that support the horizontal pathways.
Horizontal Distribution System
In Horizontal Cabling Systems, __________ are used for distributing, supporting, and providing access to horizontal cabling and its associated connecting hardware between the telecommunications outlets/connectors and the HC (FD), typically located in the ER, TR, or TE.
Horizontal pathways
Elements such as 1. __________ or 2. __________, which are used with some pathway systems, are actually considered telecommunications spaces that provide access to horizontal cabling and its connecting hardware.
- pull boxes
- splice boxes
The principles for horizontal distribution systems in commercial building are totally the same used for non-commercial building applications (e.g., health care and industrial facilities). True or False?
False.
(The principles for horizontal distribution systems are also used for non-commercial building applications (e.g., health care and industrial facilities), but these applications may have additional requirements or restrictions that need to be considered.)
In Horizontal Cabling Systems, the ICT distribution designer should focus first on the pathway systems design and then on the cabling systems design. This strategy helps to ensure a robust pathway system that supports the cabling installation over the facility’s life cycle. True or False?
True
The ICT distribution designer should ensure that the horizontal distribution system’s design (Choose correct answer):
1. Doesn’t Allows the accommodation of change over the facility ‘s life cycle to meet goal of reducing long-term maintenance and operational costs.
2. Utilizes cost saving cabling, components, and systems.
3. Includes large pathway and cabling components to accommodate ease of access and a variety of user specified technology applications.
4. Meets or exceeds all codes, standards, regulations, and AHJ rulings.
5. Meets the requirements and utilize only AHJ preferred standards or recommendations.
- Meets or exceeds all codes, standards, regulations, and AHJ rulings.
(1. Allows for the accommodation of change over the facility ‘s life cycle with the goal of reducing long-term maintenance and operational costs.
2. Utilizes standardized cabling, components, and systems.
3. Includes appropriate pathway and cabling components to accommodate ease of access and a variety of user specified technology applications.
4. Meets or exceeds all codes, standards, regulations, and AHJ rulings.
5. Meets the requirements and utilizes any applicable standards or recommendations with applicable codes or regulations.)
Horizontal cabling should be planned to satisfy today’s telecommunications needs and reduce
ongoing maintenance and relocation as well as accommodate future user applications and active equipment and service changes. True or False?
True
In Horizontal Cabling Systems, each telecommunication the minimum configuration is consisting of __________ in the work area-one for telephony and the other for data.
two telecommunications outlets/connectors
In Horizontal Cabling Systems, the minimum configuration is consisting of two telecommunications outlets/connectors in the work area-one for telephony and the other for data. Three exceptions to this practice are when (choose-3):
a. If the optical fiber outlet is used in the horizontal cabling system work area configuration
b. The permanent link, no more than three connection points
c. A Consolidation point (CP) or MUTOA is used to connect to open office cabling.
d. A transition Point (TP) is required to connect to under carpet cabling.
e. Centralized optical fiber cabling is implemented from MC (CD) to the work area(s).
f. Telecommunications cabling work areas currently require both voice and data transmission.
c. A Consolidation point (CP) or MUTOA is used to connect to open office cabling.
d. A transition Point (TP) is required to connect to under carpet cabling.
e. Centralized optical fiber cabling is implemented from MC (CD) to the work area(s).
In Horizontal Cabling Systems, if the optical fiber outlet is used in the horizontal cabling system work area configuration, then __________ should also be installed rather than one since typical telecommunications cabling work areas currently require both voice and data transmission.
two balanced twisted-pair telecommunications outlets/connectors
The __________ is the end-to-end transmission path between two points at which application-specific equipment is connected.
transmission channel
In Horizontal Cabling Systems, the transmission channel is composed of the following except one:
a. The permanent link cabling.
b. Required patch, and interconnection cords.
c. Junction and pull boxes
d. The connection points.
e. equipment
c. Junction and pull boxes
In Horizontal Cabling Systems, A maximum of __________ is allowed in the channel model.
four connection points (four connectors)
In Horizontal Cabling Systems, the permanent link, no more than three connection points (i.e., connecting hardware) are allowed.
three connection points
A __________ is necessary to support a small number of telecommunication outlets for a small business to the cabling infrastructure required to support a floor of a hospital or an airport terminal.
Horizontal Cabling System
Two methods of connecting active equipment to the horizontal cabling system are called __________ and __________.
cross-connection and interconnection.
__________ is a method where two connecting hardware units (e.g., balanced twisted-pair, optical fiber) are linked by patch cords or jumpers and used to connect active equipment to the horizontal cabling system.
Cross-connection
Balanced twisted-pair multiport connectors are connectors with more than six contacts (three pairs), which can be logically grouped and assigned different network addresses (ports). True or False?
False
(Balanced twisted-pair multiport connectors are connectors with more than eight contacts (four pairs), which can be logically grouped and assigned different network addresses (ports). )
Horizontal cabling shall be installed in a physical star topology. Each telecommunications outlet/connector shall be cabled directly to an HC (FD) in the appropriate telecommunications space .
Three exceptions to this practice are when (except one):
a. A Consolidation point (CP) or MUTOA is used to connect to open office cabling.
b. A transition Point (TP) is required to connect to under carpet cabling.
c Centralized optical fiber cabling is implemented from MC (CD) to the work area(s).
d. When connecting active equipment with single-port connectors to the cabling system
d. When connecting active equipment with single-port connectors to the cabling system
It is recommended that the HC (FD) be located on the same floor as the work area it serves. True or False?
True
Cross-connect is not allowed in the HC (FD) to enable connections between cabling segments of the horizontal and backbone systems except when the centralized optical fiber topology is used.
False
(Interconnection is not allowed in the HC (FD) to enable connections between cabling segments of the horizontal and backbone systems except when the centralized )
Application-specific devices (proprietary vendor device) shall not be used as part of the horizontal cabling system, and they shall be kept external to the telecommunications outlet/connector and HC (FD). Keeping such application-specific components external to the horizontal cabling system will facilitate the use of the cabling for generic network and service requirements. True or False?
True
__________ are intended for impedance matching, devices used for splitting 4-pair cabling into two or more separate physical lines.
Baluns
__________ is a method of connecting the horizontal cable to the active equipment. The horizontal cable is terminated on the connecting hardware (e.g. patch panel) and an equipment cord is used to interconnect the connecting hardware to the active equipment.
Interconnection
_________ is also the passive connection of cabling segments of the horizontal and backbone systems.
Cross-connection
__________ is flat, low-profile cabling designed to be installed directly on the surface of a floor and covered with carpet or tiles.
Undercarpet telecommunications cable (UTC)
Although some standards define __________ with TPs as elements of horizontal cabling, this technology is not recommended in telecommunications cabling because of a number of negative aspects related to performance.
Undercarpet telecommunications cable (UTC)
These UTC systems are composed of two main components- the 1. ___________ and the 2. __________ where the UTC cabling connects (transitions) to the horizontal cabling.
These UTC systems are composed of two main components- the UTC cabling and the Transition Point where the UTC cabling connects (transitions) to the horizontal cabling.
Undercarpet telecommunications cable (UTC) connecting hardware and cabling may not be compatible with low-performance balanced twisted-pair cabling. True or False?
False
(Undercarpet telecommunications cable (UTC) connecting hardware and cabling may not be compatible with high-performance balanced twisted-pair cabling.)
A __________ is a method that was widely used in the past to divide one physical communications line into several cabling paths to support multiple analog subscriber devices.
bridged tap
In Horizontal Cross-Connect (HC), Why bridged taps are not allowed in any balanced twisted-pair cabling system (ISP and OSP).
Because of the significant risk of decreased performance
__________ is not permitted within the horizontal cabling system except is with the use of optical fiber cabling when joining the optical fiber cabling to single-ended cords (i.e., pigtails) to accomplish connection to connecting hardware in the HC (FD) and telecommunications outlet/connector.
Splicing
There shall be no more than one splices in the individual horizontal cabling channel. An additional one splices would be allowed if pigtail splicing connectors are located at a consolidation point (CP). True or False?
False
(There shall be no more than two splices in the individual horizontal cabling channel. An additional two splices would be allowed if pigtail splicing connectors are located at a consolidation point (CP).
Within the Horizontal Cabling permanent link, the maximum cable length shall be no more than __________ regardless of the type of transmission media used.
90 m (295 ft)
Within the Horizontal Cabling Media channel, the total length of cabling shall not exceed __________.
100 m (328 ft)
The total combined length of flexible cabling (e.g., equipment cords, patch cords) within the channel shall not exceed __________ except when longer work area equipment cords are permitted in conjunction with a MUTOA.
10 m (33 ft)
Patch cord shall be no longer than:
1. __________ for 24 A WG cords.
2. __________ for 26 AWG cords.
- 5 m (16.5 ft) for 24 A WG cords.
- 3.96 m (13 ft) for 26 AWG cords.
In Horizontal Cabling Media, __________ is recommended to enable the possibility of future changes in the horizontal cabling system.
Cable slack
In the TR Horizontal Cabling Media:
Balanced twisted-pair cabling - Sufficient to reach the farthest corner of the TR via the pathways plus the distance from floor to ceiling without exceeding the __________ limitation.
90 m (295 ft)
In the TR Horizontal Cabling Media:
Optical fiber cabling - Sufficient to reach the farthest corner of the TR via the pathways plus the distance from floor to ceiling and an additional 1. __________ of slack for storage inside hardware without exceeding the 2. __________ limitation.
- 3 m (10 ft)
- 90 m (295 ft)
In the work area Horizontal Cabling Media:
1. Balanced twisted-pair cabling - _________
2. Optical fiber cabling - _________
- 0.3 m (1 ft)
- I m (3.3 ft)
In Work Areas and Open Office Cabling, the key elements of open office cabling are the __________.
- MUTOA
- Consolidation Point
__________ is a housing used to hold telecommunications outlets/ connectors.
Telecommunications outlet box
Work Areas and Open Office Cabling, A high density of telecommunications outlets/connectors will enhance the ability of the cabling system to accommodate changes. True or Flase?
True
In Work Areas and Open Office Cabling, the __________ is a connecting device (e.g., balanced twisted-pair outlet, optical fiber connector/adapter) in the work area on which horizontal cabling terminates.
Telecommunications outlet/connector
Work Areas and Open Office Cabling, __________ is a housing used to hold telecommunications outlets/ connectors.
Telecommunications outlet box
Balanced twisted-pair cabling standards require at least 2-pair cable to be terminated to an 8P8C-type modular connector at the work area.
Balanced twisted-pair cabling standards require each 4-pair cable to be terminated to an 8P8C-type modular connector at the work area.
In Balanced Twisted-Pair Telecommunications Outlet/ Connector, the two common pin pairings are _________and __________.
T568A and T568B.