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Dan2024 Study > Fiber-FTTP-Quizlet > Flashcards

Fiber-FTTP-Quizlet Flashcards

1
Q

A cascasde of 20 to 40 sections of coax and amplifiers to carry RF signals from Headend to the general
service area is known

A

Trunk

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2
Q

The process of combining multiple signals by assigning each signal a unique
frequency is called

A

FDM ( Frequency Divison Multiplexing)

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3
Q

Moving the line card of the CMTS closter to the cable
modems is called

A

Remote PHY

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4
Q

Remote PHY uses this type of wire connection to talk to a
centralized CMTS

A

pseudo wire

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5
Q

This type of architecture
requires no active devices

A

PON

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6
Q

An architecture with no RF
amplifiers after the node

A

Node + 0

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7
Q

This architecture is referred to
as FTTH/FTTP is often referred to as

A

ODN

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8
Q

A single node for a FTTP
serves around this many homes

A

85

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9
Q

The main sources of loss in a
PON network

A

Optical splitters

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10
Q

In FTTP how many nodes

A

4

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11
Q

32 way optical splitter has of
loss of

A

18 to 20 dBm

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12
Q

64 way splitter has loss of

A

22 to 24 dBm

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13
Q

128 splitter has loss of

A

26 to 28 dBm

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14
Q

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

A

Centralized Split

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15
Q

This architecture has multiple splitters are distributed at
various locations

A

Distributed Architecture

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16
Q

This architecture has a single fiber is used to feed the network and distrbuted along
the optical taps

A

Distributed Tapped

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17
Q

This is the most common type
of powering architecture

A

Distributed Powering

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18
Q

This architecture has multiple line power supplies located
through the access network

A

Distributed Powering

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19
Q

The architecture has a single line power supply that is used to provide power for a large
area of the network

A

Centralized Powering

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20
Q

FTTP can have up to this
percentage power reduction

A

0.5

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21
Q

Coaxial spans greater than 900 ft will need this Ohm cable , so power will not drop
below 50 VAC

A

50 Ohm

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22
Q

The minimum voltage required for Fiber deep node
is

A

50 v AC

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23
Q

The maximum fiber Deep
power distrubution consumption

A

160 Watts

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24
Q

The minimal voltage needed in order for the node to work

A

50 Volts

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25
Q

RFoG uses this modulation to
transport signals

A

AIM

26
Q

RFoG terminates here at the
subscribers location

A

ONU

27
Q

RFoG architecture normally
has losses as high as

A

25 - 30 DB

28
Q

The main component of this is the optical fiber, optical
splitters and optical taps

A

OSP (Outside Plant)

29
Q

When upstream transmitters only output light when they sense RF signal in the upstream band at the RF port
is called

A

Burst mode

30
Q

If 2 optical transmitters send light US at the same time and are on same wavelengths, the transmission may be lost is
called

A

OBI ( Optical Beat Interference)

31
Q

Per SCTE RF0G uses this
wavelength for DS

A

1550 nm

32
Q

SFP

A

Small Form factor pluggable

33
Q

This device converts DS optical signal to RF and
converts RF to optical

A

ONU

34
Q

EPON is this type of network
topology

A

Point to Multipoint

35
Q

This device controls all timing
with the EPON/GPON network

A

OLT

36
Q

DPoE

A

DOCSIS Provisoning over EPON

37
Q

DPoG

A

DOCSIS Provisoning over GPON

38
Q

These are protocols that allow back office devices to provision and operate a
GPON/EPON network

A

DPoE and DPoG

39
Q

is a suite of software applications that run on the OLT that provide communication between the back office and EPON
architectue

A

DML (DOCSIS Mediation LAyer)

40
Q

EPON and GPON uses DS
wavelenths

A

1490 nm

41
Q

EPON and GPON use US
wavelength

A

1310 nm

42
Q

GPON device at the customer
premises is called

A

ONT (Optical Network Termination)

43
Q

EPON uses this type of
modulation

A

Baseband digital modulation

44
Q

Server that provides IP addressing to subscriber
devices in a JFC or PON

A

DHCP

45
Q

server that provides the ability to monitor equipment
in HFC or PON

A

SNMP (Simple Network Monitoring Protocol)

46
Q

Server that send configs and
firmware files

A

TFTP (Trival File Transfer Protocol)

47
Q

is a central repository of messages, error messages
collected

A

SYSlog (system log)

48
Q

server sends time stamps in the DS to cpe

A

Time of Day (ToD server(

49
Q

is accredited by ANSI to develop voluntary consesus based industry standards for a wide variety of Technology
products

A

TIA

50
Q

was a standards and trade organization that defined the
cable DS frequencies

A

EIA

51
Q

is used to strip the buffer
coating from the fiber to expose the cladded fiber

A

Optic stripper

52
Q

Used to cut optic cables

A

shears

53
Q

used to pick up small pieces
of fiber

A

Tweezers

54
Q

used to cut the most common
wire

A

wire stripper

55
Q

The node with a EDFA is often
referred to as this

A

Parent node

56
Q

FD nodes may work up to
which threshold, in dBm

A

(-)8 dBm

57
Q

FD nodes are designed so the receiver input has a minimum
value of

A

(-) 6 dBm

58
Q

Each wavelength can have up
to how many homes

A

128

59
Q

GPON architecture carries
data in this method

A

GEM frames ( GPON Encapsulated method)

60
Q

GPON terminates at the CPE
is called this

A

ONT (Optical Network Terminal)

61
Q

GPON architecture starts here on this device

A

OLT

62
Q

Most OTDR are designed to produce light at this wavelength to t/s on active
networks

A

1650 nm

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