FOA Fiber Optics

Armored cable is used in outside plant installations to

The largest contributor to fiber attenuation is

Concatenation or the joining of two cables in a long outside plant run is almost always done by

In an industrial environment, fiber is most often used to

What wavelengths are appropriate for use with multimode fiber

The protective gear every VDV installer must always wear is

Industrial app often use fiber-optics for its noise immunity rather than distance & bandwidth

Telephone networks have been converted to fiber but fiber to the home is not yet feasible.

Premises cables must be rated for ? to meet codes.

Besides causing attenuation, dirt particles can cause scratches on the polished fiber ends.

The design of cables for high pulling tension in outside plant installations is usually

Factory terminations use which method of attaching the connector to the cable

? of cable plant is part of design & install process for fiber-optic network that is overlooked

Cables with metallic conductors as well as fiber are called

In singlemode connectors, ? is as important as low loss

Fiber-optic network design involves

Outside plant cabling (OSP) can be installed by

Both mechanical splices and prepolished/splice connectors require a good ? to have low loss

Which fiber typically has the largest core

Upgrading cables in a TR, old cables can be cut back to wall & left, as long as its firestopped

Identify the proper designation for the following cable type

Cable plant loss should be estimated during the ? phase

Cable ties used on fiber-optic cables

Reference cables must match the ? of the cables being tested

Rays of light transmitted in multimode fiber are called

Light-emitting diode (LEDs) have higher output power and bandwidth than lasers.

Wavelength of light used for most fiber optic systems is in the ? region and ? to the human eye

? will facilitate installation, allow better planning for upgrades, and simplify testing

Short wavelength 850-nanometer links can use ? detectors in the receiver

Which fiber-optic test instrument uses backscattered light for measurements

It may be more cost effective for fiber-optic cabling in many projects to be custom designed

Armored cable is used in outside plant installations to

What connector style is now specified in the latest 568 standard

How many methods are included in standards for setting the "0dB" reference for loss testing

Most SM field terminations are made by fusion splicing a factory made pigtail onto the cable

Cables tested with an OTDR do not require insertion loss testing with a source and OLTS

To prevent the cable from twisting when pulling it, a worker should

Fiber amplifiers & dense wavelength devision multiplexers (DWDM) work in the ? wavelength range

What type of source is used for testing singlemode fiber

Identify the following connector

Min long-term bend radius of installed fiber-optic cable is usually specified as no less than

The ? protects the fiber from harm.

Cables that contain both multimode and singlemode fibers are called

Loose tube cable requires a ? to terminate with connectors

Identify the following connector

Identify the following connector

The ? of a laser makes the effective bandwidth of multimode fiber higher than with LEDs.

Optical fibers can transmit either analog or digital signals.

Physical contact (PC) polish on connectors is designed to reduce

Biggest advantage of optical fiber is its the most cost effective means of transporting info

Which reference method is required for TIA 568

Fiber optics is used in cars to connect their electronic systems.

Splicing is very rare in premises networks.

Underground cable generally include a gel, powder, or tape for protection from

Fiber-optic network designers should have an indepth knowledge of

Multimode transceivers use ? sources depending on their rqmts for coupled power and bandwidth

Most premises networks today should use ? MM fiber but backbone cables can contain ? fibers

Identify the proper designation for the following cable type

Which of the following are NOT necessary in a centralized fiber-optic cabling architecture

Black polyenthylene jackets are used on outdoor cables for

Vertical cable runs should preferably be installed by

To choose a cable properly one needs to understand, install, envir specs

Outside plant cabling can be installed by

The first consideration for any network is choosing the proper fiber-optic cable type

What is needed to get low loss from a prepolished/splice connector

The bandwidth and distance capability of optical fiber means that

Identify the following connector

Ten dB corresponds to a factor of ? in power.

The most helpful info a worker can have when troubleshooting a cabling network for restoration

Information on the safety of chemicals used in fiber optics are

Singlemode transceivers use ? sources for their higher coupled power and bandwidth.

Singlemode fiber has a smaller core than multimode fiber.

Most outside plant (OSP) installations are single-mode (SM) fiber

Dangerous light from fiber-optic cables is bright and easily visible.

Singlemode (SM) fiber has ? light-carrying core than multimode (MM) fiber.

Connectors at each end of the cable plant should not be counted when calc the cable plant loss

The first version of TIA/EIA 568 standard for premises cabling called of the use of

Which fiber specification is most important to the user and is an important factor in testing

In an optical fiber, the light is transmitted through the

Metropolitan networks can involve which of the following systems

Identify the proper designation for the following cable type

Always keep ? on connectors when not connected to equipment or being tested.

In premises applications, OTDRs are limited in usefulness by their

The difference between a fiber-optic connector and a splice is

OTDRs are used in outside plant cables to

Identify the proper designation for the following cable type

What test instrument(s) are used for insertion loss testing

Identify the proper designation for the following cable type

The fiberglass rod inside many fiber-optic cables is for

The standard method of testing installed multimode cables in a cable plant is described in

Under pulling tension, the bend radius should not be less than

Which of the following communications systems typically use fiber-optic backbones

Which on of the following performance requirements are not shared by connectors and splices

The first requirement that must be considered for a new fiber-optic project is

Most building management systems use ? cabling

Cables should always be pulled with ? to prevent damage

No cable should be installed indoors unless it

The principle of operation of OTDRs is similar to

Testing a fiber-optic installation may require

Fiber is used in long-distance phone networks because it is much cheaper than copper wire.

Fiber-optic network designers should have a knowledge of

Premise cables in local area network (LAN) backbones often contain

Any cable that contains metallic conductors must be properly grounded and bonded

Fiber-optic links generally use two fibers for full duplex (bidirectional) links

Discussions of which is better are no longer relevant, as fiber is the only choice

Multimode fiber systems operation at speeds of 1 gigabit per second or more use ? sources.

Metal components of cabling system installed in equip or telecom room must be grounded/bonded

Copper Networks can be converted to fiber optics using

The industry standard that covers structured cabling, both fiber and copper is

Structured cabling installed to TIA-568 standards uses a ? cabling architecture

Singlemode fiber has ? bandwidth than multimode fiber

The diameter of an optical fiber is traditionally measured in

Loss of fiber or any fiber in a cable is measured in

The advantage of a breakout cable over a distribution cable is

The loss of a multimode graded index fiber is greatest at

Total loss of fiber in cable plant is calc by multiplying attenuation coefficient of fiber by

The SC and LC connectors have different size ferrules and cannot be mated

MM graded-index glass fiber-optic cables are tested with ? sources at ? and ? wavelengths

Identify the proper designation for the following cable type

A fiber stripper removes the ? of the fiber.

The OTDR should never be used without a "launch cable" also called a "pulse suppressor"

What is the core size of singlemode fiber

All outdoor cable are specifically designed to

Which type of dispersion affects singlemode fiber as well as multimode fiber