Chapter 5: Flashcards
Horizontal Distribution System, Section 1 – Horizontal Cabling System
1
Q
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.
A
Horizontal Distribution System
2
Q
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.
A
Horizontal pathways
3
Q
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.
A
- pull boxes
- splice boxes
4
Q
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?
A
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.)
5
Q
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?
A
True
6
Q
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.
A
- 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.)
7
Q
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?
A
True
8
Q
In Horizontal Cabling Systems, each telecommunication the minimum configuration is consisting of __________ in the work area-one for telephony and the other for data.
A
two telecommunications outlets/connectors
9
Q
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.
A
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).
10
Q
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.
A
two balanced twisted-pair telecommunications outlets/connectors
11
Q
The __________ is the end-to-end transmission path between two points at which application-specific equipment is connected.
A
transmission channel
12
Q
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
A
c. Junction and pull boxes
13
Q
In Horizontal Cabling Systems, A maximum of __________ is allowed in the channel model.
A
four connection points (four connectors)
14
Q
In Horizontal Cabling Systems, the permanent link, no more than three connection points (i.e., connecting hardware) are allowed.
A
three connection points
15
Q
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.
A
Horizontal Cabling System
16
Q
Two methods of connecting active equipment to the horizontal cabling system are called __________ and __________.
A
cross-connection and interconnection.
17
Q
__________ 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.
A
Cross-connection
18
Q
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?
A
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). )
19
Q
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
A
d. When connecting active equipment with single-port connectors to the cabling system
20
Q
It is recommended that the HC (FD) be located on the same floor as the work area it serves. True or False?
A
True
21
Q
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.
A
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 )
22
Q
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?
A
True
23
Q
__________ are intended for impedance matching, devices used for splitting 4-pair cabling into two or more separate physical lines.
A
Baluns
24
Q
__________ 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.
A
Interconnection
25
_________ is also the passive connection of cabling segments of the horizontal and backbone systems.
Cross-connection
26
__________ 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)
27
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)
28
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.
29
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.)
30
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
31
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
32
__________ 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
33
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).
34
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)
35
Within the Horizontal Cabling Media channel, the total length of cabling shall not exceed __________.
100 m (328 ft)
36
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)
37
Patch cord shall be no longer than:
1. __________ for 24 A WG cords.
2. __________ for 26 AWG cords.
1. 5 m (16.5 ft) for 24 A WG cords.
2. 3.96 m (13 ft) for 26 AWG cords.
38
In Horizontal Cabling Media, __________ is recommended to enable the possibility of future changes in the horizontal cabling system.
Cable slack
39
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)
40
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.
1. 3 m (10 ft)
2. 90 m (295 ft)
41
In the work area Horizontal Cabling Media:
1. Balanced twisted-pair cabling - _________
2. Optical fiber cabling - _________
1. 0.3 m (1 ft)
2. I m (3.3 ft)
42
In Work Areas and Open Office Cabling, the key elements of open office cabling are the __________.
1. MUTOA
2. Consolidation Point
43
__________ is a housing used to hold telecommunications outlets/ connectors.
Telecommunications outlet box
44
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
45
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
46
Work Areas and Open Office Cabling, __________ is a housing used to hold telecommunications outlets/ connectors.
Telecommunications outlet box
47
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.
48
In Balanced Twisted-Pair Telecommunications Outlet/ Connector, the two common pin pairings are _________and __________.
T568A and T568B.
49
What is the Pair color code for T568A?
1.
2.
3.
4.
5.
6.
7.
8.
1. White Green
2. Green
3. White Orange
4. Blue
5. White Blue
6. Orange
7. White Brown
8. Brown
50
What is the Pair color code for T568B?
1.
2.
3.
4.
5.
6.
7.
8.
1. White Orange
2. Orange
3. White Gree
4. Blue
5. White Blue
6. Green
7. White Brown
8. Brown
51
In Telecommunications Outlet Box Location Considerations, each work area shall have a minimum of __________ with a minimum of __________ per outlet.
1. one telecommunications outlet
2. two connectors
52
For work areas in which it may be difficult to install future additional telecommunications outlets/connectors (e.g., in private or managers offices) what should be done?
a minimum of two telecommunications outlets should be provided and located for equipment access flexibility (e.g., on opposing walls).
53
For Work area telecommunications outlet box size requirements. The outlet box should be a minimum of __________. This will accommodate one or two 27 mm (1 trade size) conduits.
100mm (4 in) x 100 mm (4 in) x 57 mm (2.25
54
For Work area telecommunications outlet box size requirements. Where a larger conduit is required, the box size should be increased accordingly. The maximum conduit __________ will require a 120 mm x 120 mm x 64 mm outlet box. Specialty boxes may be used in place of the above as appropriate.
35 mm (1-1/4 trade size)
55
The work area telecommunications outlet box should be located near an electrical outlet (e.g., within 1. __________) and installed 2. _________.
1. 1.0m [3.3 ft]
2. the same height.
56
Sufficient space shall be provided in the telecommunications outlet box or equivalent space so that minimum cable bend radius requirements are not exceeded. True or False?
True
57
Open office furniture openings provide for mounting faceplates containing one or more telecommunications outlets/connectors. Numerous sizes of openings are commonly available. A minimum clearance of __________ should be provided. If openings are not available, then the telecommunications outlet/connector box should be secured to the kick plate with screws that are blunt or filed in the back to ensure they do not damage telecommunications cabling or electrical power wiring.
30.5 mm (1.2 in)
58
Work area equipment cord types that connect to the horizontal cabling shall meet or exceed the performance requirements of the horizontal cabling to which they connect. Cable conductor gauge of cord shall be the not be greater than the horizontal cabling. True or False?
False
(Work area equipment cord types that connect to the horizontal cabling shall meet or exceed the performance requirements of the horizontal cabling to which they connect. Cable conductor gauge of cord shall be the same or greater than the horizontal cabling.)
59
The ICT distribution designer should focus first on the cabling systems design and then on the pathway 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?
False.
(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)
60
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 appropriate pathway and cabling components to accommodate ease of access and a variety of user specified technology applications.
4. Check which applicable codes, standards, regulations, but always Meets or exceeds AHJ rulings.
5. Meets the requirements and utilize only AHJ preferred standards or recommendations.
3. Includes appropriate pathway and cabling components to accommodate ease of access and a variety of user specified technology applications.
(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.)
61
Horizontal Cabling Systems, the most common and widely used balanced twisted-pair multi-port connector is a __________ (also known as a 25-pair telephone company [RJ-21] connector)
50-position miniature ribbon connector (also known as a 25-pair telephone company [RJ-21] connector)
62
Horizontal cabling shall be installed in a physical __________ topology.
star
63
When connecting active equipment with single-port connectors to the cabling system (e.g., up to eight contacts [four pairs] or optical fiber), the connection method is __________.
interconnections
64
Below describe MUTOA, except two:
a. It serves as a method of connecting more than one user (work area) to the horizontal cabling system.
b. It is advantageous in open office spaces that are moved or reconfigured frequently.
c. It is an interconnection point within the horizontal cabling system for balanced twisted-pair cabling or optical fiber cabling.
d. Allows standard horizontal cables to be extended into work area pathways and terminated on telecommunications outlets/connectors that are dedicated to each individual user.
e. It facilitates the termination of horizontal cabling system cables in a common location within a furniture cluster or similar open area.
f. It allows the horizontal cabling to remain unchanged when the open office plan is changed.
a. It serves as a method of connecting more than one user (work area) to the horizontal cabling system.
b. It is advantageous in open office spaces that are moved or reconfigured frequently.
e. It facilitates the termination of horizontal cabling system cables in a common location within a furniture cluster or similar open area.
f. It allows the horizontal cabling to remain unchanged when the open office plan is changed.
65
In MUTOA design considerations, each open office furniture cluster should be served by at least __________.
one MUTOA
66
one MUTOA
Multiuser Telecommunications Outlet Assembly
67
A single MUTOA should be limited to serving a maximum of __________ (all part of one furniture cluster).
12 work areas
68
The larger the MUTOA capacity, the longer the work area equipment cords are likely to span. Spare capacity should be considered when sizing the MUTOA. The use of high-density patch panels may in some cases be used as a MUTOA. True or False?
True
69
The use of a MUTOA cabling design option allows work area equipment cords to extend beyond ________, depending upon the length of the horizontal cable.
5 m (16.5 ft)
70
The use of high-density patch panels may in some cases be used as a MUTOA. True or False?
True
71
The total channel length is reduced as the horizontal cable is shortened because stranded conductor cables contribute more insertion loss (attenuation) than solid conductor cables. Do not use 1. _____________ work area equipment cords with lengths that exceed 2. __________ when using MUTOA.
1. 24 AWG
2. 22 m (72 ft)
72
Balanced twisted-pair work area equipment cords with stranded conductors of 26 AWG may exhibit attenuation up to __________ higher than the corresponding solid conductor horizontal cable
50% (0.5) -for 26AWG cords.
73
Formula to calculate the maximum length (m) of the work area equipment cord.
W = C - T
W = is the maximum length (m) of the work area equipment cord.
C = is the maximum combined length (m) of the work area equipment cord,
HC (FD) equipment cord, and HC (FD) patch cord.
T = is the maximum total length (m) of HC (FD) equipment cords and optional
HC (FD) patch cords in the TR:
5 m (16.5 ft) for 24AWG cords,
3.96 m (13 ft) for 26 AWG cords.
74
Formula to calculate the maximum combined length (m) of the work area equipment cord, HC (FD) equipment cord, and HC (FD) patch cord.
C = 102-H / 1+D
C = is the maximum combined length (m) of the work area equipment cord,
HC (FD) equipment cord, and HC (FD) patch cord.
H = is the length (m) of the horizontal system cable.
D = is an insertion loss derating factor:
20% (0.2) - for 24 AWG cords,
50% (0.5) -for 26AWG cords.
75
Calculate the maximum length of the open office work area equipment cords, wherein horizontal system cable is 90 m using 24AWG.
5
76
Calculate the maximum length of the open office work area equipment cords, wherein horizontal system cable is 80 m using 26AWG.
11
77
Calculate the maximum combined length (m) of the work area equipment cord, HC (FD) equipment cord, and HC (FD) patch cord, wherein horizontal system cable is 70 m using 24AWG.
27
78
The maximum length of the balanced twisted-pair horizontal cabling system when using a MUTOA shall not be more than __________ regardless of transmission media type.
90 m (295 ft)
79
The total length of the balanced twisted-pair horizontal channel, including the permanent link, work area equipment cord, HC (FD) patch cords, and HC (FD) equipment cord in the horizontal cross-connect when using a MUTOA shall not be more than __________.
100 m (328 ft).
80
The end of the work area equipment cord at the MUTOA should be labeled with the work area identifier it serves, and the end at the work area active equipment should be labeled with the MUTO A and its position identifier. True or False?
True
81
MUTOAs may install in ceiling spaces, under access flooring, or in any obstructed areas. True or False?
False
(Do not install MUTOAs in ceiling spaces, under access flooring, or in any obstructed areas.)
82
MUTOAs shall not be installed in furniture unless that furniture is permanently secured to the building structure. True or False?
True
83
For balanced twisted-pair cabling, MUTOAs should be located at least __________ from the HC (FD) to minimize the effects of multiple connections in close proximity on near-end crosstalk loss and return loss.
15 m (49 ft)
84
In areas with WAPs, give special attention to the installation of the cabling to access points directly from MUTOA. MUTOAs are intended to service devices in furniture clusters True or False?
False
(When using MUTOAs in areas with WAPs, give special attention to the installation of the cabling to access points directly from the TR/TE, not from the MUTOA located in the area. MUTOAs are only intended to service devices in furniture clusters)
85
The __________ is an interconnection point within the horizontal cabling system for balanced twisted-pair cabling or optical fiber cabling.
Consolidation Point (CP)
86
The functional difference between the Consolidation Point (CP) and the MUTOA in the open office environment is that the MUTOA introduces an additional connection for each horizontal cabling run. True or False?
False
(The functional difference between the CP and the MUTOA in the open office environment is that the CP introduces an additional connection for each horizontal cabling run.)
87
A Consolidation Point (CP) may be useful when reconfiguration is frequent, but not so frequent as to require the flexibility of the __________
MUTOA
88
A Consolidation Point (CP) allows standard horizontal cables to be extended into work area pathways and terminated on telecommunications outlets/connectors that are dedicated to each individual user. true or false?
true
89
The use of a Consolidation Point (CP) does not extend the length of horizontal cabling farther than __________ from the cable termination at the HC (FD) to the cabling termination at the telecommunications outlet/connector or MUTOA.
90 m (295 ft)
90
When Consolidation Point (CP) is used in design, each open office furniture cluster should be served by at least __________ .
one CP
91
It is recommended that the Consolidation Point (CP) should be limited to serving a maximum of __________ and spare capacity should be considered when sizing the CP.
12 work areas
92
The Consolidation Point (CP) can be located in the following spaces, if permitted by codes, standards, and regulations except two:
a. Suspended ceilings
b. Utility Column
c. Access floors
d. Modular office furniture
e. Underfloor ducts.
f. Work area
b. Utility Column
e. Underfloor ducts
93
Choose which is correct CP installation:
a. Consolidation Points (CPs) may be used for direct connection to active equipment.
b. CP may house the cross-connections.
c. No more than two CP shall be used within the same horizontal system cabling run.
d. CP shall be design consider any future users so no reconfigured needed to accommodate the new requirements.
e. When the CP is located in an air-handling space (e.g., plenum ceiling, access floor), the complete CP assembly (e.g., enclosure with connecting hardware) shall meet the requirements of the AHJ. Follow manufacturers' instructions for installation to ensure compliance to heat and smoke test conditions.
f. When installed in suspended ceiling spaces or access floor spaces, those spaces shall be fully accessible, if block by any building fixtures, equipment, or heavy furniture or disturbing building occupants ensure it is movable.
f. When installed in suspended ceiling spaces or access floor spaces, those spaces shall be fully accessible without moving building fixtures, equipment, or heavy furniture or disturbing building occupants.
(a. CPs shall not be used for direct connection to active equipment.
b. Cross-connections shall not be used at a CP.
c. No more than one CP shall be used within the same horizontal system cabling run.
d. If the floor space requirements change for an existing CP, then the CP should be reconfigured to accommodate the new requirements.
e. When the CP is located in an air-handling space (e.g., plenum ceiling, access floor), the complete CP assembly (e.g., enclosure with connecting hardware) shall meet the requirements of the AHJ. Follow manufacturers' instructions for installation to ensure compliance to heat and smoke test conditions.)
94
For balanced twisted-pair cabling, the CP should be located at least __________ from the HC (FD).
15 m (49 ft)
95
If the floor space requirements change for an existing CP, then the CP should be reconfigured to accommodate the new requirements. true or false?
true
96
Choose which is not correct regarding the installation of CP (Choose two).
a. CP should not be installed suspended ceiling spaces or access floor spaces, those spaces shall be fully accessible without moving building fixtures, equipment, or heavy furniture or disturbing building occupants.
b. Do not place active telecommunications equipment directly within the ceiling or access floor space.
c. Disadvantage of the CP are that they increase cabling installation time and expense when re-arranging open office furniture.
d. When the CP is located in an air-handling space (e.g., plenum ceiling, access floor), the complete CP assembly (e.g., enclosure with connecting hardware) shall meet the requirements of the AHJ.
e. Follow manufacturers' instructions for installation to ensure compliance to heat and smoke test conditions.
f. Advantages of the CP are that they design flexibility for ICT distribution designers.
a. When installed in suspended ceiling spaces or access floor spaces, those spaces shall be fully accessible without moving building fixtures, equipment, or heavy furniture or disturbing building occupants.
c. Advantages of the CP are that they decrease cabling installation time and expense when re-arranging open office furniture.
97
Disadvantages of the CP (except):
a. Increase the original installation time and expense of additional materials.
b. Additional labeling requirements.
c. Complexity of testing and troubleshooting of the installed horizontal cabling.
d. May degrade the transmission characteristics of the cabling channel.
e. Difficulties in locating the device during the design.
e. Difficulties in locating the device during the design.
98
4-Types in locating the Consolidation Points (CPs)?
On all column
Between column
Checker Board
Close to building core
99
In deploying CP, the highest Flexibility is locating it in?
1. __________ ; the lowest Flexibility is locating it in?
2. __________
a. On all column
b. Between column
c. Checker Board
d. Close to building core
1. a. On all column
2. d. Close to building core
100
In deploying CP, the longest work area cord length is locating it in? 1. __________ ; the shorter work area cord length is locating it in? 2. __________
a. On all column
b. Between column
c. Checker Board
d. Close to building core
1. d. Close to building core
2. b. Between column
101
In deploying CP, which locations can accommodate change easily?
a. On all column
b. Between column
c. Checker Board
d. Close to building core
a. On all column
b. Between column
c. Checker Board
102
In deploying CP, the higher deployment cost is locating it in? 1. __________; the lower deployment cost is locating it in? 2. __________
a. On all column
b. Between column
c. Checker Board
d. Close to building core
1. b. Between column
2. c. Checker Board
103
In deploying CP, which location does not accommodate change easily?
a. On all column
b. Between column
c. Checker Board
d. Close to building core
d. Close to building core
104
A__________ is a network device located in areas of a building or campus and placed in relatively close proximity to where users interact with their wireless enabled network devices.
WLAN AP
105
The __________ created a Power over HDBaseT (PoH) standard that delivers a maximum of 95 W over four pairs.
HDBaseT Alliance
106
When hybrid copper/optical fiber cabling is used to support data and power transmission, only the data signal is transmitted over the optical fiber strands. Power is supplied through integrated conductors within the cabling sheath. True or False?
True
107
Although there are several variations of PoE, each successive type, while increasing maximum power, is backwards compatible. True or False?
True
108
POH means?
Power over HDBaseT
109
What is the power source (W) rating of the following PoE type:
PoE Type 1 = _________ (W)
PoE Type 2 = _________ (W)
PoE Type 3 = _________ (W)
PoE Type 4 = _________ (W)
POH = _________ (W)
PoE Type 1 = 15.40W
PoE Type 2 = 30W
PoE Type 3 = 60W
PoE Type 4 = 100W
POH = 100W
110
What is the maximum current per conductor (mA) rating of the following PoE type:
PoE Type 1 = _________ (mA)
PoE Type 2 = _________ (mA)
PoE Type 3 = _________ (mA)
PoE Type 4 = _________ (mA)
POH = _________ (mA)
PoE Type 1 = 175mA
PoE Type 2 = 300mA
PoE Type 3 = 300mA
PoE Type 4 = 500mA
POH = 500mA
111
What is the maximum current per pair (mA) rating of the following PoE type:
PoE Type 1 = _________ (mA)
PoE Type 2 = _________ (mA)
PoE Type 3 = _________ (mA)
PoE Type 4 = _________ (mA)
POH = _________ (mA)
PoE Type 1 = 350mA
PoE Type 2 = 600mA
PoE Type 3 = 600mA
PoE Type 4 = 960mA
POH = 1000mA
112
Horizontal Cabling Requirements: The operating temperature of cabling should not exceed __________, regardless of the cable jacket rating.
60 °C (140 °F)
113
Horizontal Cabling Requirements: Equipment cords and coverage area cables used for data and power transmission should have conductors with a minimum size of __________.
0.205 mm2 (24 AWG)
114
Horizontal Cabling Requirements: PoE Type 3, PoE Type 4, HDBaseT, and other data and power methods capable of supporting a minimum of __________ transmission should use cabling containing solid conductors.
5GBase-T
115
Horizontal Cabling Requirements: Consider specifying cabling size of __________ conductors if the building system (e.g., audio systems, video displays) is expected to require power exceeding 60 W during the life cycle of the building.
0.326 mm2 (22 AWG)
116
In Horizontal Cabling Requirements: The smaller category cabling minimizes temperature increases while supporting higher PoE class PDs. True or False?
False
(The higher-category cabling is able to support more current capacity at a maximum allowable 15-degree temperature increase. It becomes clear that higher category cabling minimizes temperature increases while supporting higher PoE class PDs.)
117
Higher category-rated cable typically means larger conductor sizes, and as power currents increase, these smaller conductors have lower resistance and less heating than larger cable conductors. True or False?
False
(Higher category-rated cable typically means larger conductor sizes, and as power currents increase, these larger conductors have lower resistance and less heating than smaller cable conductors.)
118
Balance-twisted pair cable sized:
a. Cat 5e UTP (_________AWG)
b. Cat 6 UTP (_________AWG)
c. Cat 6A UTP (_________AWG)
d. Cat 6A F/UTP (_________ AWG)
e. Cat 7A S/FTP (_________ AWG)
a. Cat 5e UTP (24 AWG)
b. Cat 6 UTP (23 AWG)
c. Cat 6A UTP (23 AWG)
d. Cat 6A F/UTP (23 AWG)
e. Cat 7A S/FTP (22 AWG)
119
F/UTP means?
Foil covered unshielded twisted -pair
120
S/FTP means?
Severed foil twisted-pair
121
In Cabling Recommendations: The designer should consider specifying cable with a listing temperature of 1. __________ or 2. __________ for cables passing through locations with elevated ambient operating temperatures to avoid exceeding listed cable limits.
1. 75 °C (167 °F)
2. reducing the number of cables in a bundle
122
In Cabling Recommendations: Pathways that allow airflow around cables minimize heating effects. True or False?
True.
(Pathways that allow airflow around cables minimize heating effects. For example, wire mesh cable tray and cable runway will improve heat dissipation and allow for loosely laid cables instead of tight bundles. Fully enclosed pathways (e.g., conduit) contribute to heat rise.)
123
In Cabling Recommendations: Unshielded cables often exhibit less heat build-up than comparable Shielded cables. True or False?
False
(Shielded cables often exhibit less heat build-up than comparable unshielded cables)
124
In Cabling Recommendations:
What is the minimum type and conductor size for an Audiovisual systems with a high power/high data requirement?
Shielded category 6A/class EA cable which comes standard with 23AWG
125
In Cabling Recommendations:
What is the minimum type and conductor size for a cameras that are typically has a high data/low- to mid-power?
Should be balanced twisted pair cable and the consideration could be category 6A, which comes standard with 23AWG.
126
In Cabling Recommendations:
What is the minimum type and conductor size for a WLAN system?
Balanced twisted pair 23 AWG minimum, category 6A
127
In Cabling Recommendations:
1. What is the minimum cable type and conductor size for Lighting system?
2. What is the recommended cable type and conductor size for Lighting system?
1. Balanced twisted pair 23 AWG minimum, category 6A
2. Balanced twisted pair 22 AWG recommended, category 7/class F and category 8/class I
128
In Cabling Recommendations:
28 AWG cable shall not be used as horizontal or backbone cable. True or False?
True
129
In Cabling Recommendations:
It is the best practice for equipment cords and coverage area cables used for PoE data and power transmission to have conductors with a minimum size of __________.
0.205 mm2 (24 AWG)
130
In Cabling Recommendations:
If 28 AWG cords is use which three is correct:
a. 24 AWG may only be used for patch cabling to connect an endpoint device. If 28 AWG cords is use:
b. 28 AWG may only be used for patch cabling to connect an endpoint device.
c. Use small bundle sizes.
d. For PSEs sending more than 30 W of PoE, bundle 28 AWG patch cords in bundles of 10 or less.
e. If power isn't being distributed, then there are no limitations to 28 AWG bundle sizes.
f. For power delivery above 15.4 W to further support airflow, separate cable bundles a minimum of 38 mm (1.5 in) apart from the outer edge of a bundle to the outer edge of the next bundle.
g. Patch cords shall not be placed in conduit or other enclosures where heat build-up could occur.
b. 28 AWG may only be used for patch cabling to connect an endpoint device.
c. Use small bundle sizes.
e. If power isn't being distributed, then there are no limitations to 28 AWG bundle sizes.
g. Patch cords shall not be placed in conduit or other enclosures where heat build-up could occur.
Explanation:
(a. 28 AWG may only be used for patch cabling to connect an endpoint device. If 28 AWG cords is use:
d. For PSEs sending more than 30 W of PoE, bundle 28 AWG patch cords in bundles of 12 or less.
f. For power delivery above 30 W to further support airflow, separate cable bundles a minimum of 38 mm (1.5 in) apart from the outer edge of a bundle to the outer edge of the next bundle.)
131
In Cabling Bundles:
Patch cords shall not be placed in conduit or other enclosures where heat build-up could occur. True or False?
True
132
In Cabling Bundles:
The temperature of the cabling will rise slightly because of larger data transmission in the conductors. True or False?
False
(The temperature of the cabling will rise slightly because of resistive heat generation in the conductors.)
133
In Cabling Bundles:
The level of temperature rise will increase when cables are bundled. True or False?
True
134
In Cabling Bundles:
The electrical performance of the cable will also degrade slightly because of the __________.
temperature rise
135
In Cabling Bundles:
The level of temperature rise can also be affected by the 1. __________ and 2.__________.
1. construction of the cabling
2. pathway type
136
In Cabling Bundles:
The recommended maximum bundle size is __________ cables.
24 cables
137
As per NEC, the ampacity ratings are based on 1. ________________ 2. _____________, and 3. __________.
1. bundle size
2. conductor diameter
3. cable temperature ratings
138
In Direct Current (dc) Resistance: The dc resistance of each conductor in the pair must be equal (balanced). Any difference between the pairs is reported as dc resistance unbalance. True or False?
True
139
In Direct Current (dc) Resistance:
Excessive dc resistance unbalance between multiple pairs can prevent PoE systems from functioning. True or False?
True
140
In Direct Current (dc) Resistance:
Copper coated aluminum and copper coated steel are compliant with industry standards and support PoE applications because of their low dc resistance. True or False?
False
(Copper coated aluminum, copper coated steel, and other non-standard conductors are not compliant with industry standards and do not support PoE applications because of their increased dc resistance.)
141
In Power over Ethernet (PoE) Connectors:
Metal in the connector body instead of plastic creates an high heat dissipation and are not recommended.
False
(Metal in the connector body instead of plastic creates an improvement in heat dissipation and are recommended.)
142
In Power over Ethernet (PoE) Connectors:
For PD modular connectors and patch cords, __________ should be specified as connectors. Patch cords that do not have gold plating will fail earlier when used in PoE applications.
50-micron gold-plated tines
143
In Power over Ethernet (PoE) Connectors:
Consider specifying connectors compliant with the contact resistance requirements included in __________.
IEC 60512-99-001
144
__________ standard allows class 5-8 PDs to use less than 20 mW to keep the port alive to improve power consumption
IEEE 802.3bt
145
Class 1 details:
1. __________ type
2. __________ W (PSE)
1. Type 1 802.3af
2. 4 W (PSE)
146
Class 2 details:
1. __________ type
2. __________ W (PSE)
1. Type 1 802.3af
2. 7 W (PSE)
147
Class 3 details:
1. __________ type
2. __________ W (PSE)
1. Type 1 802.3af
2. 15.4 W (PSE)
148
Class 4 details:
1. __________ type
2. __________ W (PSE)
1. Type 2 802.3at
2. 30 W (PSE)
149
Class 5 details:
1. __________ type
2. __________ W (PSE)
1. Type 3 802.3bt
2. 45 W (PSE)
150
Class 6 details:
1. __________ type
2. __________ W (PSE)
1. Type 3 802.3bt
2. 60 W (PSE)
151
Class 7 details:
1. __________ type
2. __________ W (PSE)
1. Type 4 802.3bt
2. 75 W (PSE)
152
Class 8 details:
1. __________ type
2. __________ W (PSE)
1. Type 4 802.3bt
2. 90 W (PSE)
153
Power injectors specified must be __________ listed for the purpose.
NRTL – Nationally Recognized Testing Laboratories
154
The use of unlisted or non-standards compliant equipment may provide higher than standardized power levels, causing a cable's temperatures to be in excess of the maximum cable jacket temperature. Overheating the cable beyond its temperature rating may affect the ability of the cable to transmit data, result in violation(s) of applicable codes, permanently alter or damage the cable, or create a safety hazard. True or False?
True
155
Power injectors should be located as close as possible to the receiving equipment or device to 1. __________ and 2. __________.
1. Minimize power loss
2. Heating of the cabling
156
Choose which is correct about the Midspan Devices:
a. Power injectors should be located as close as possible to the access switch or device to minimize power loss and heating of the cabling.
b. For systems implemented external to a building, Power injectors supporting the systems should be weather rated so no need for external enclosure.
c. For systems implemented external to a building, lightning or other surge protection should be considered.
d. For systems implemented external to a building, specified termination terminal shall not attenuate the PoE power to the PD or affect network signals passing through it.
c. For systems implemented external to a building, lightning or other surge protection should be considered.
(a. Power injectors should be located as close as possible to the receiving equipment or device to minimize power loss and heating of the cabling.
b. For systems implemented external to a building, Power injectors supporting these systems should be installed within a rated enclosure.
d. For systems implemented external to a building, specified surge suppressor shall not attenuate the PoE power to the PD or affect network signals passing through it.)
157
__________ is based on the principles of a centralized optical fiber network using optical fiber cabling in the horizontal system to support centralized electronics and fiber-to-the-desk technology.
Centralized optical fiber cabling topology
158
In Centralized Optical Fiber Cabling,
- Centralized cabling provides connections from the work areas to the centralized cross connect by allowing the use of any of the following methods:
* Pull-through cabling from the centralized cross-connection
* Interconnection cabling in a floor-serving telecommunications space
* Spliced cabling in a floor-serving telecommunications space
159
Centralized Optical Fiber Cabling Design:
- Centralized cabling shall be designed so as to allow for the addition and removal of horizontal and intra building backbone system fibers.
- The layout of both rack mount and wall-mount termination hardware should be such as to accommodate modular growth in an orderly manner.
- The intrabuilding backbone system design should allow for sufficient spare capacity to service additional telecommunications outlets/connectors from the centralized cross-co1mect without the need to pull additional intrabuilding backbone system cables.
- The intrabuilding backbone system fiber count should be sized to provide present and future applications to the maximum work area density within the area served by the TR.
160
In Centralized Optical Fiber Cabling,
__________ fibers are normally required for each application delivered to a work area.
two
161
In Centralized Optical Fiber Cabling,
- Choosing between the pull through cabling method or backbone cabling methods:
* Pull-through installations are typically used for small, one- or two-story buildings with a limited number of users.
* Backbone to horizontal designs is used in larger buildings where permanently routed backbone cables would minimize disruption to firestop assemblies when adding new users to the system.
162
Centralized Optical Fiber Cabling Distances:
Centralized optical fiber cabling installation is limited to optical fiber cabling within a building and may not be deployed between buildings or across a campus. true or false.
True
163
In Centralized Optical Fiber Cabling Pull-Through Method, while there are no specific limitations of cable length in the pull-through method, specific applications, or multimode cabling properties may limit the overall length. It is recommended that optical fiber cabling lengths do not exceed the maximum length limit __________.
a. 105m
b. 30m
c. 150m
d. 75m
e. 305m
f. 500m
e. 305 m (1000 ft)
164
Centralized Optical Fiber Cabling Interconnection and Splice Methods:
When implementing a centralized optical fiber system with the interconnection or splice methods, the interconnection or splice connecting hardware should be located in the __________
Floor-serving TR or TE.
165
Centralized Optical Fiber Cabling Interconnection and Splice Methods:
The length limitation of centralized optical fiber cabling between the HC (FD) located in the TR or TE and the work area connecting hardware should not exceed __________.
90m (295 ft)
