VDV: Applications and Installation (Part 1 of 3)

A system of J-hooks can work effectively if there is _____.

-a low volume of cables -little variance in cable types

Electromagnetic interference (EMI) is _____.

-caused by the radiation from electric and magnetic fields -interference in signal transmission or reception

In the last _____ years, common network speeds have gone from one megabit per second (Mbps) to 10 gigabits per second (Gbps).

20

The copper cable used for voice and data applications is typically a _____, multipair cable.

24-gauge

The maximum pulling tension for a Cat-rated cable is _____(force).

25 lb

Electrostatic discharges (ESDs) can be 35,000 V or more, but people normally do not feel them at voltages below _____.

3,000 V

Most runs of cable are longer than _____ in length.

50' or 60'

WAPs are antennas for transmitting Ethernet activity and they are easily installed with Cat _____ cables.

5e

_____ blocks are insulation displacement connecting (IDC) blocks, and punchdown tools are used to terminate insulated copper wiring on these blocks.

66 and 110

The most common type of ladder used by VDV technicians is the stepladder, which has a(n) _____.

A-frame

_____ is a standard that is used for almost all project specifications, and it documents how a network should be cabled.

ANSI/TIA-568

_____ cables are excellent for shielding out interference from other cables, but they do not protect the pairs from interference from adjacent pairs in the same cable.

F/UTP

_____ are caused by poor terminations, crushed or touching conductors, or both.

FEXT and NEXT

ESDs are designed to inform and instruct employees in the safe handling of chemical products.

False

F-type connectors are only used in Ethernet applications.

False

In binary code, the twos and zeros are referred to as bits of data.

False

PC boards should always be stacked to prevent damage from ESDs.

False

Structured cabling is a systematic installation of cabling needed for high-voltage systems.

False

The master end of a wiremap tool is a reference point for the test and has no display or controls.

False

The most common type of copper cable is STP.

False

Class _____ helmets are used for general service applications and provide limited voltage protection.

G

_____ are an eye-protection device with a flexible frame that is secured to the wearer's face with an elastic headband.

Goggles

A Type _____ ladder duty rating is for heavy duty, industrial, 250-pound capacity ladders.

I

All chemical products are required to have an SDS, including _____.

I. aerosol spray cleaners II. antioxidant compounds III. wire-pulling lubricants

A safety data sheet (SDS) is a document that provides detailed information describing a chemical and _____.

I. appropriate first-aid measures II. instructions for its safe use III. its potential hazards IV. proper disposal

Any system with a detection ability, such as a _____, can be used to trigger another system.

I. card reader II. door contact III. motion detector IV. smoke detector

Personal protective equipment (PPE) is _____ or other safety devices designed to protect workers against safety hazards in the work area and from injury.

I. clothing II. glasses III. gloves IV. hard hats

Aesthetic requirements for a VDV system involve the _____ and other visible pathway considerations.

I. color and material for faceplates II. color, type, and size of labels III. types of equipment racks, cable trays,

Locations of _____ can be located through the use of GPS technology.

I. handholes II. manholes III. other buried junction points

The National Electrical Code® (NEC) provides ratings for VDV cables to indicate where they can be safely installed.

True

The difference between an electrician and a VDV installer is primarily in the purpose of the installation.

True

When a ladder is carried on the shoulder by one person, it should be transported with the front end pointing downward to minimize the possibility of injury to others when walking around corners or through doorways.

True

When planning a new cabling system, the VDV technician, with the help of a project manager or a CAD designer, will review the specifications for all VDV systems to be installed.

True

When terminating or installing cable, the aramid yarn must be cut cleanly.

True

The wires in a _____ cable are twisted around each other at regular intervals in order to confine the electromagnetic field within the wires.

UTP

_____ is a commonly used copper cable jacket color.

White

Technicians use _____ to patch into telephone lines to verify that they are in proper working order, as well as to run computerized tests on the lines.

butt sets

A wiremap tester typically displays a "PASS" or "FAIL" indication of the wire's condition within all _____ pairs of the cable.

four

Backbone twisted-pair cables are _____ in diameter than four-pair cables.

heavier and larger

A 110 block has a _____ than a 66 block.

higher capacity and lower noise characteristics

The insulation displacement process with a punchdown tool _____.

increases the speed of making terminations and provides a consistent, repeatable result

A wire is a(n) _____.

individual conductor

When calculating the length of an OTDR reflection, less light means _____.

more signal loss

A(n) _____ is a flexible three-foot to 12-foot length of cable used to connect a network device to a main cable run or a panel.

patch cord

A(n) _____ is an insulated copper or fiber-optic cable used to connect two devices or components by means of a plug at both ends.

patch cord

A _____ is a device used to make connections between incoming and outgoing VDV lines.

patch panel

A _____ light is the brightest for a given power level.

red

A visual light source is usually _____, because that is the longest wavelength visible to the human eye.

red

Cables with _____ jackets are usually avoided for voice or data installations because they are commonly used for fire alarm system installations or backbone cabling.

red

A _____ is a device that connects wireless telecommunication devices to form a wireless network.

wireless access point

A _____ tester is a test instrument used to locate open circuits, short circuits, and improper cable terminations, such as swapped conductors.

wiremap

"Transmission Performance Specifications for Field Testing of UTP Cabling Systems (TSB-67)" is a document that specifies the _____.

-electrical characteristics of field test instruments -minimum transmission requirements for UTP cabling -test methods

Foot protection is provided by safety shoes that are worn to prevent foot injuries typically caused by objects _____.

-falling a distance of less than 4' -having an average weight of less than 65 lb

Solid-state devices and circuits can be damaged or destroyed by a _____ electrostatic discharge.

10 V

The maximum length for a horizontal cabling run is _____ and includes the patch cords on both ends of the run.

100 m

Level _____ ISDN and low-speed data cable is twisted-pair cable and has the capacity for up to four megabits per second.

2

The company that originated long range electronic communications was the _____.

American Telephone and Telegraph Company (AT&T)

_____ is the reduction of power in any signal, light beam, or light wave, either completely or as a percentage of a reference value.

Attenuation

_____ serves a role in defining standards for the telecommunications industry.

BICSI

_____ injuries are often the result of improper lifting procedures, but they can be prevented through proper planning.

Back

_____ cabling is telecommunications cabling and hardware that runs from a telecommunications closet, or intermediate distribution frame (IDF), to a main distribution frame (MDF) or to another telecommunications room.

Backbone

_____ cabling is telecommunications premise cabling that interconnects buildings via underground or overhead cabling means.

Campus

An RJ-45 connector _____.

I. has connection pins for all eight wires in a Cat 5, 5e, or 6 cable II. is currently the standard connector used by most network cabling systems III. resembles and operates similar to an RJ-11 connector

Together with _____, RJ-45 connectors and cables compose a horizontal UTP cabling system.

I. jacks II. patch cables III. patch panels

Installation practices vary according to the _____.

I. local electrical and building codes II. operating environment III. quantity of locations IV. types of cable involved

The _____ is a trade organization that represents about 660,000 workers in the electrical, telecommunications, construction, utilities, broadcasting, railroad, manufacturing, and governmental industries.

International Brotherhood of Electrical Workers (IBEW)

The _____ writes and publishes standards, some of which have a common purpose and subject as the TIA standards, although the TIA standards are more commonly used and cited in the United States.

International Organization for Standardization (ISO)

_____ is not a typical color used for high-visibility clothing.

Red

A(n) _____ is an individual who has acquired education, training, and expertise in the design, implementation, and integration of telecommunications and data transport systems and infrastructure.

Registered Communications Distribution Designer (RCDD)

_____ electricity is an electrical charge at rest.

Static

A VDV system can use video content analytics (VCA) to analyze video input and perform a function, such as sound an alarm, when a change is detected.

True

A global positioning system (GPS) is a worldwide positioning system that uses signals from navigational satellites orbiting the Earth to determine the location and elevation of a GPS receiver.

True

All test equipment must be used per the written instructions from the OEM.

True

An OTDR uses reflected light instead of a direct measurement.

True

Caution tape and safety barriers are used to prevent personnel from entering work areas where potential hazards exist.

True

Copper wiring has been the standard used for communications systems since before the invention of the telephone in 1876.

True

Safety barriers are typically made of PVCII, are yellow or orange in color, and may have reflective stripes

True

A(n) _____ system is a security system that controls door locks.

access control

A _____ is an analytical tool that can be created by certain types of test instruments and is usually generated by a VDV technician to certify all of the fibers in a specific cable.

cable loss report

Personal protective equipment (PPE) does not include _____ protection.

clothing

A _____ cable is a low-voltage cable comprised of an insulated central conducting wire wrapped within an additional cylindrical shield.

coaxial

A _____ is a group of two or more flexible conductors within a common protective cover that is used to deliver power to a load by means of a plug.

cord

A _____ is used to lock a connector onto a fiber strand.

crimp tool

Insulated jackets are not used to _____.

deliver power to a load by means of a plug

A _____ is not a common topology.

diamond

A _____ allows a technician to inspect the end of a polished connector and visually confirm the quality of the termination.

fiber scope

Information common to _____ includes the manufacturer's name, address, and phone number; the product (trade) name; and information on composition materials.

safety data sheets

In commercial installations, a standard, _____-button telephone was the most common type of telephone used.

six

The _____ is the main consideration when specifying VDV conductors.

speed of the signal

Ethernet is installed in a _____ topology.

star

A(n) _____ system controls security cameras.

surveillance

A technical requirement involved in the installation of a VDV telecommunications system is _____.

the data carrying capacity

With modern VDV systems, _____ cable is the most common type of transmission cable used.

twisted-pair