EPON (AW 9-27-23) Flashcards

1
Q

EPON

A

Ethernet Passive Optical Network

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2
Q

OLT

A

Optical Line Terminal

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3
Q

ODN

A

Optical Distribution Network

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4
Q

FDC

A

Fiber Distribution Cabinet

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5
Q

Input Connector of an XF3

A

Blue SC-UPC Connector

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6
Q

Number of RJ45 ports on XF3

A

4

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7
Q

Number of RJ11 ports on an XF3

A

2

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8
Q

Purpose of the F-Connector port on XF3

A

Output MoCA

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9
Q

3 methods of communication through the XF3

A

Ethernet, WiFi, MoCA

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10
Q

FDH

A

Fiber Distribution Hub

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11
Q

Location of the OLT

A

Headend

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12
Q

Type of signal used in a PON

A

Digital Signal

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13
Q

Direction of the flowing signal on fiber optic cable

A

Bidirectional

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14
Q

Two different types of fiber optic cable

A

Single mode and multi-mode fiber

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15
Q

Method used to lay out fiber optic cable prior to running a drop to the premise

A

Figure 8 Method

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16
Q

FOC

A

Fused on Connectors

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17
Q

Minimum amount of slack for premade drop in the housing unit

A

20 inches

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18
Q

MST and miniOTE’s are types of what?

A

Fiber Taps

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19
Q

Two types of bends that will damage a fiber optic cable

A

Macro Bend, Micro Bend

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20
Q

Acceptable downstream light level range

A

-28dBm - -8dBm

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21
Q

LED Light status that indicates an ONU is online and ready for use

A

All three lights are solid green

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22
Q

Name for the mode in which the XB7 is using the #4 Ethernet port as an input for services

A

EWAN Mode

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23
Q

Size of an expansion loop at a J-Hook or P-Hook for a fiber drop

A

6 inches

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24
Q

Size of an expansion loop for fiber drops at any mid-span location

A

6 inches

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25
Q

Diameter of the loop size used to store excess fiber

A

12 inches

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26
Q

Frequency of which light levels are tested via Power Meter

A

1577 nm

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27
Q

Modems that are eligible for “2-box” solutions

A

XB7 and CBR2

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28
Q

Fiber Color 1

A

Blue

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29
Q

Fiber Color 2

A

Orange

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30
Q

Fiber Color 3

A

Green

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31
Q

Fiber Color 4

A

Brown

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32
Q

Fiber Color 5

A

Slate

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33
Q

Fiber Color 6

A

White

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34
Q

Fiber Color 7

A

Red

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35
Q

Fiber Color 8

A

Black

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36
Q

Fiber Color 9

A

Yellow

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37
Q

Fiber Color 10

A

Violet

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38
Q

Fiber Color 11

A

Rose

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39
Q

Fiber Color 12

A

Aqua

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40
Q

625-740 nm

A

Red Light

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41
Q

590 - 625 nm

A

Orange Light

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42
Q

565-590 nm

A

Yellow Light

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43
Q

500-565 nm

A

Green Light

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44
Q

485-500 nm

A

Blue Light

45
Q

440-485 nm

A

Indigo Light

46
Q

380-440 nm

A

Violet Light

47
Q

Pre-made fiber drop lengths

A

100 - 1,500 feet in 100 foot increments

48
Q

L.A.S.E.R

A

Light Amplification by Stimulated Emission of Radiation

49
Q

PPE used while working with fiber

A

Leather work gloves, safety glasses w/ eye shields

50
Q

Outside diameter of an optical fiber

A

125 microns

51
Q

Diameter of the core of fiber

A

8-10 microns

52
Q

Most light generated by lasers for telecommunications use exists in

A

1310 nm and 1550 nm (nanometers)

53
Q

A card made up of material similar to the photographic film that changes colors when exposed to light

A

Photosensitive Card

54
Q

The Greek letter lambda, represents what?

A

Wavelength

55
Q

What is the equation of wavelength

A

speed of light in a vacuum/frequency (c/f)

56
Q

This can verify splice loss, measure length and find faults

A

Optical Time Domain Reflectometer (OTDR)

57
Q

The distance between two points of like phase in a wave

A

Wavelength

58
Q

MST

A

Multiport Service Terminal

59
Q

OTE

A

Optical Termination Enclosures

60
Q

EWAN

A

Ethernet Wide Area Network

61
Q

Type of drop installation requiring a trace wire, underground approved, and one continuous piece

A

Aerial to Underground

62
Q

How much of strength member should be present in the premise enclosure

A

2-4 inches

63
Q

What 2 things need to be removed from drops with excess stored at the premise

A

Strength member and outer jacket

64
Q

WDM

A

Wavelength Division Multiplexing

65
Q

IEEE Standard for 10 G-EPON

A

802.3av

66
Q

What layer does an OLT operate at?

A

Layer 2

67
Q

This is a type of fiber amp

A

EDFA - Erbium Doped Fiber Amp

68
Q

OBI

A

Optical Beat Interference

69
Q

Maximum number of splits on a single fiber

A

128

70
Q

Where do downstream levels originate from in EPON?

A

OLT

71
Q

TDM

A

Time Division Multiplexing

72
Q

Where does upstream levels originate from?

A

ONU

73
Q

Laser mode for US traffic

A

Burst

74
Q

Laser mode for DS traffic

A

Continuous

75
Q

Upstream queuing is managed by the OLT’s what?

A

Dynamic Bandwidth Algorithm (DBA)

76
Q

LLID

A

Logical Link Identifier

77
Q

This IDs signal for/from different ONUs

A

LLID (Logical Link Identifier)

78
Q

DPoE

A

DOCSIS Provisioning of EPON

79
Q

DML

A

DOCSIS Mediation Layer

80
Q

Range of Downstream Band

A

1574-1580 nm

81
Q

Range of C-Band

A

1525 - 1567 nm

82
Q

Range of Upstream Band

A

1260 - 1360 nm

83
Q

L-Band is also what?

A

Downstream bandwidth

84
Q

O-Band is also what?

A

Upstream bandwidth

85
Q

OSA

A

Optical Spectrum Analyzer

86
Q

SFP

A

Small Form Factor Pluggable

87
Q

“C” in C-band stands for what?

A

Conventional

88
Q

“O” in O-Band stands for what?

A

Original

89
Q

“L” in L-Band stands for what?

A

Long

90
Q

Optical Loss Budget

A

consists of all of the optical losses between the optical source and the optical receiver.

91
Q

RFoG downstream wavelength (FTTP MEASUREMENTS Section 2)

A

1550 nm

92
Q

RFog Upstream wavelength (FTTP MEASUREMENTS Section 2)

A

1610 or 1310 nm

93
Q

Fiber Deep downstream wavelength (FTTP MEASUREMENTS Section 2)

A

1550nm

94
Q

Fiber Deep upstream wavelength (FTTP MEASUREMENTS Section 2)

A

1310 nm

95
Q

EPON downstream wavelength (FTTP MEASUREMENTS Section 2)

A

1490 nm

96
Q

EPON upstream wavelength (FTTP MEASUREMENTS Section 2)

A

1310 nm

97
Q

EPON 10Gbps downstream (FTTP MEASUREMENTS Section 2)

A

1577 nm

98
Q

EPON 10Gbps upstream wavelength (FTTP MEASUREMENTS Section 2)

A

1270 nm

99
Q

nm

A

Nano meter

100
Q

EDFA

A

Erbium Doped Fiber Amplifier

101
Q

SC

A

Subscriber Connector

102
Q

Color of SC-UPC Connector

A

Blue

103
Q

Color of the APC Connector

A

Green

104
Q

Range of frequencies used in EPON

A

1260 nm - 1625 nm

105
Q

Ports on an XMF-H

A

OCC(Optical Channel Checker) OSA (Optical Spectrum Analyzer), OTDR, SFP (Small Form-Factor Pluggable)

106
Q

AIM

A

Analog Intensity Modulation

107
Q

GEM

A

GPON Encapsulation Method

108
Q
A