FTTP 17 Flashcards Preview

2016 Master > FTTP 17 > Flashcards

Flashcards in FTTP 17 Deck (51):
1

EPON

Ethernet Passive Optical Network

2

FTTP

Fiber to the Premises

3

GFI

Ground Fault Interrupt

4

NAP

Network Access Point

5

Soft material fitted over the end of the fiber drop to facilitate pulling

Pull Sock

6

RFOG

RF over glass

7

WDM

Wave division Multiplexing

8

PON

Passive Optical Network

9

LASER

Light Amplification Stimulated by Emissions of Radiation

10

What Class LASER is used in FTTP

Class 1

11

Coiling fiber in this pattern prevents winding up as this pattern reverses direction every 180 degrees

Figure 8

12

The loss of optical or electrical energy due to an electrical or mechanical obstruction.

Attenuation

13

RFoG Downstream

1550nm

14

RFoG Upstream

1610nm

15

EPON Downstream

1490nm

16

EPON Upstream

1310nm

17

required bond conductor gauge wire

12 gauge

18

AWG

American Wire gauge

19

The maximum total coax distance between the R-ONU and Power Supply

50ft

20

Always keep your eyes at a ___ degree angle or perpendicular to any optical connection

90

21

How many wavelengths of Light to operate concurrently on the same fiber

4 - RFoG Downstream 1550 nm, RFoG Upstream 1610 nm, EPON Downstream 1490 nm, EPON Upstream 1310 nm

22

What is the largest impact on fiber optic performance

Optical cleaning and assembly technique

23

ONU

Optical Network Unit

24

What powers the Fiber to the Premise (FTTP) Optical Network Unit (ONU)?

12 VDC transformer

25

Residential Optical Network Unit (ONU) that converts optical signal to RF and connects to existing coax.

RFoG (RF over Glass)

26

Each optical tap port on a Network Access Point (NAP) represents a unique fiber strand and is assigned to ___.

A specific home.

27

This will show a fiber assignment from the splitter cabinet to each home or address it serves.

Design Print or Cut Sheet

28

What is the difference between a RFoG ONU and an EPON ONU?

RFoG converts optical signal to Broadband RF. EPON converts optical signal to Ethernet.

29

The nominal Optical Power Input for a Fiber to the Premise (FTTP) RFoG Optical Network Unit (ONU).

0 to -6dBm

30

What is the power output of the Flexpoint Power Supply that feeds power to the ONU?

12 VDC

31

Because fiber drops come in pre-made lengths, you may have to store excess fiber in the ___.

The Pedestal or vault.

32

During a FTTP installation, what are the two bonding options inside of the ONU enclosure?

1. Install a ground block in the coax connected to the RF side of the ONU.2. Eliminate the ground block and connect the ground wire to the ground lug on the ONU.

33

This service type provides a node at every residence

FTTP

34

If the Status LED on the Aurora RFoG ONU is green, this means.

Optical Power Input is above -10 dBm

35

The FTTP ONU's two piece design has a lower door provided for access to ___.

The Ground Block

36

The output of the Optical Network Unit (ONU) at a residence in a Fiber to the Premise (FTTP) plant can be one of these two.

Broadband RF or Ethernet

37

The RF power level Output on the FTTP RFoG ONU at 1002Mhz.

19dBmV

38

What must be done with the fiber drop before you pull it through the conduit?

Unspool it

39

This must be done each and every time an optical drop connection is made, even if it's a brand new install with brand new equipment.

Must be cleaned

40

What is typical loss for fiber optic cable?

1 dB per 3000 feet

41

What is the angle on an APC connector?

8 degrees

42

What is the benefit of using APC connectors?

Reduced back reflection and improved power transfer

43

What should the upstream transmit level be at the ONU?

3 dBm plus or minus 1 dBm at 1610 nm

44

What color is a UPC housing?

Blue

45

What color is an APC housing?

Green

46

The engineering standard for FTTP requires that this be installed at the output of the ONU.

A 4 way splitter at minimum

47

What is the preferred method of powering the ONU and why?

Dedicated. That way there is no power loss when testing levels

48

What is the max length between ONU and power supply?

50 feet

49

RFOG power supplies shall not be installed in

Attics or crawl spaces.

50

What is unit of measurement for optical power?

dBm

51

What are the four components of a fiber drop?

Toning conductor, protective jacket, strength member, fiber optic strand.

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