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Structured Cabling > Cabling > Flashcards

Cabling Flashcards

1
Q

Balun

A

A balanced to unbalanced circuit coupling device used to convert from unbalanced to Balance transmission provides impedance matching when connecting twisted-pair to coaxial cables

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2
Q

Grade 2 residential cable requirements

A

2 cat 5E and 2 coaxial cable’s

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3
Q

Attenuation

A

Signal loss decrease in magnitude of transmission signal strength between points.similar to voltage drop

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4
Q

Pair to pair couple

A

Transfer of unwanted energy from one circuit or pair to another

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5
Q

Power sum next

A

Undesired coupling of signal energy from a number of simultaneously transmitting pairs into a receiving pair

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6
Q

Class one administration

A

Number of TR’s and no backbone cabling or outside plant cabling system

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7
Q

ADO

A

Provides meals for a tenant to disconnect from access provider

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8
Q

Equipment room

A

Centralize space for telecommunications equipment that serves occupants of the building sometimes two rooms one voice and one data usually where utility comes into a building

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9
Q

Residential cable requirements

A

Grade 1 Dash minimum requirements for telecom services , Telephone, satellite cat tv and data services

Grade 2 – provides a generic cabling system that meets the requirements for basic advanced and multimedia telecommunication services

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10
Q

CMP

A

Plenum cable

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11
Q

CMX

A

Residential cable

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12
Q

CG

A

General purpose

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13
Q

CMR

A

Riser cable

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14
Q

Work area

A

A building space where the occupants interact with telecommunications terminal equipment

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15
Q

Application dependent design

A

Specific cable type and connectors for a design

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16
Q

Structured cabling system

A

Horizontal cabling, backbone cabling, Work area, telecom rooms, equipment rooms, entrance facility, administration

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17
Q

Cross talk and how different jacks are better for increasing performance

A

T568A and T568B not USOC

18
Q

Equipment room admin color

A

Purple

19
Q

Wire map test

A

Basic test for test circuits for open or short-circuits cross pairs reversed wires and split pairs

20
Q

GE

A

Grounding equalizer – large multi story buildings, interconnects elements of telecommunications grounding infrastructure

21
Q

TBB

A

Telecommunication bonding backbone – interconnects all TGBS with TMGBS

22
Q

TGB

A

Telecom grounding Busbar

23
Q

TMGB

A

Telecom main grounding bus bar

24
Q

Horizontal cabling

A

Max 295 feet, 90 meters-portion of telecom cabling system that extends from work area telecom outlet to the horizontal cross connect in telecom room

Includes horizontal cables telecom out works in work areas mechanical terminations and patch cords or jumpers located in TR

25
Q

Cat 5E

A

100 MHz, 110 ohms twisted pair cable

26
Q

Coax Cable

A

Conductor, plastic jacket, wire mesh,outer jacket

27
Q

Patch cord maximum length

A

16 feet

28
Q

Permanent link test

A

Test configuration used by data telecommunication systems designs in users to verify performance of permanently installed cable

29
Q

Channel test

A

Test configuration use by data telecommunications systems designer and user to verify performance of overall channel

30
Q

What does twisting pairs do to the performance of the cable

A

Reduces crosstalk capacitive coupling

31
Q

While the pipe fill

A

Three or more – 40%

32
Q

NECs main concern with fire and structured cabling

A

Flammability of cable

33
Q

Bend radius on UTP cables

A

4x the diameter

34
Q

Support distance on cabling

A

5 feet

35
Q

Labeling requirements

A

12 inches back from the end of the cable and generated from mechanical device

36
Q

110 block

A

Better application at high frequencies, 110 blocks can accommodate six cables in a row

37
Q

Coax connectors

A

Type F – frequently used
Type BNC – security applications (Data applications)
Type N-not as common

38
Q

Bit rate

A

Transmission of binary signal measured in bits per second

39
Q

AT&T bonding clamp

A

Used for grounding

40
Q

Overvoltage protection

A

Accomplished using – carbon block airgap, gas tube, solid-state Protector units

Gas tube is preferred over carbon block airgap because they become pitted and create carbon buildup and dust

41
Q

Elements of administration

A

Class 1–1 telecom room same building
Glass two – more than one telecom room same building
Class III – multiple buildings the same campus
Glass for – multiple sites same network

Structured Cabling (1 decks)

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