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Dan2024 Study > Fiber-FTTP Installations-Quizlet > Flashcards

Fiber-FTTP Installations-Quizlet Flashcards

1
Q

What are the 2 most popular types of connectors

A

SC and ST (Standard Connector Straight Tip)

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2
Q

The SC connector lath must hold the connector securely
for this many matings

A

1000

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3
Q

MT-RJ

A

Mechanical Transfer Registered Jack

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4
Q

LC

A

Local connector

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5
Q

FC

A

ferrule connector

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6
Q

This uses a BNC connector that needs a half twist to
make the attachment

A

ST

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7
Q

This connector is used in
high-vibration enviroments and has a threaded body

A

FC

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8
Q

This connector looks similar to the RJ-45 connector and
has a flange on top

A

LC

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9
Q

This connector uses a latched
or push/pull attachment

A

SC

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10
Q

This connector is a small form-factor pluggable style connector with 1/3 jack of
ST/SC

A

MT-RJ

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11
Q

IF an air gap exists between the fiber end faces in mated connectors, it can reslult in
reflection levels as bad as

A

(-)14 dB

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12
Q

refers to relectioins that occur at places where the light travels from one medium to
another

A

Fresnel Reflection

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13
Q

This is a measure of the magnitude of relections

A

Return loss

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14
Q

If the output of an optical transmitter is +8 dBm and the reflections back toward the transmitter is -10 dBM what is
the return loss

A

(-18 dBm)

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15
Q

What year was the APC
connectors introduced

A

1990

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16
Q

APC connectors have an
angle of

A

8 degrees

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17
Q

APC connectors have an
approx. insertion loss of

A

.1-.2 dB

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18
Q

APC has connector matings
with back relections of and less optical return loss of

A

(-)60 dBm

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19
Q

UPC connectors were
introduced in what year

A

1991

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20
Q

UPC has connector mating with back relections of and
optical return loss of

A

(-)50 d BM

21
Q

This type of fiber architecture there is a single fiber coming from the hub that carriers all
of the optical signals

A

centralized split Archectecture

22
Q

This type of fiber architecture there are multiple splitters are distrubuted at various
locations outside of the plant

A

Distributed architecture

23
Q

This type of fiber architecture is similar to the tapped feeder
used in HFC networks

A

Distributed Tap architecture

24
Q

This is the greatest cause of
optical network failure

A

Connector contamination

25
Q

What are the 2 types of Fiber inspections

A

Proactive and reactive

26
Q

visually inspecting fiber connectors at every stage of
handling before mating them

A

Proactive

27
Q

visually inspecting fiber connectors after a problem is
discovered

A

Reactive

28
Q

The method most common to
clean fibers

A

Dry cleaning

29
Q

this cleaning process overly
saturare or flood the end face

A

Wet cleaning

30
Q

When splicing fiber the fiber
end must be cut with this

A

cleaver

31
Q

When splicing before adding the connector the end must
be

A

polished

32
Q

When stripping fiber don’t remove more than how many
inches at a time

A

2 inches

33
Q

This splice is when fibers are
join mechanically

A

Mechanical splice

34
Q

Mechanical splice has an
insertion loss of

A

.2-.25 dB

35
Q

This splice is accomplished by the application of localized heat sufficient to fuse or melt two lenghts of fiber forming a
single fiber

A

Fusion

36
Q

When a mechanical spice is completed, an air gap exist between the two fiber
creating a different

A

Index of Refraction

37
Q

Fusion splice has about this insertion loss

A

.01-.05 dB

38
Q

when cleaving the fiber leave on the minimum requirelength
of exposed fiber should be

A

less than 1/2 inch

39
Q

The ONU RF output power level is realated to the optical
input power by this rule

A

2 for 1

40
Q

ONU will not transmit unless it
can hear this

A

OLT

41
Q

When RFoG and EPON networks are used simultaneously which network
normally carries video signals

A

RFoG

42
Q

Before a splice or new connector is made the end face must be how many
degrees perpendiculat

A

1-2 degrees

43
Q

AIM

A

Analog Intensity modulation

44
Q

is an optical amplifer used to
increase the distance capabilties of fiber optic

A

EDFA (Erbium Doped Fiber Amplifer)

45
Q

EPON is this ethernet
standard

A

802.3 ah

46
Q

is one billionth of a meter and a measuremtn for optical
wavelength

A

nm

47
Q

suite of software applications that run on the OLT that provide communciation between the back office and the EPON or GPON. The
interface is called

A

DML (DOCSIS Mediation Layer)

48
Q

is the software elemnet in the OLT that becomes the proxy between the ONU or ONT

A

virtual cable modem (vCM)

49
Q

is a semiconductor device that converts light into an
electrical current

A

Photodiode

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