Ftth Final Presentation

8/2/2019 Ftth Final Presentation

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Presented by:

Anto Mathew

Midhun M.S

Jyothis Joy

Joseph Chacko


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PROPOSED SYSTEM


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DownstreamTDM transmission with multiple listeners (encryption to insure privacy) Upstream TDMA transmission with upstream transmissions (bursts) scheduled to prevent

overlap

Downstream (single - fiber systems): 1490 nmUpstream: 1310 nmRF video (if present) 1555 nm

TD M Time Division MultiplexTDMA Time Division Multiple AccessCC Cross ConnectNB Narrow BandBB BroadbandOLT Optical Line TerminationONT Optical Network Termination

TDM

ONT2

ONT32

1:32 Optical splitter(or 1:64 for shorter reaches or

with Reach Extender)

OLT

AccessNode

NB

BB

CC Video

Data

E1/T1/Telephony

Data

E1/DS1

GbESTMn/OCn

ONT1

E1/DS1/Telephony

POTS

VOIP

(and/or)

TDMA

Up to 60 km* physical reach

(* with G.984.6 Reach Extender)


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Splitter analysis and selection Link design

Total system design

System implementation


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CONCLUSION:

Case 1: When attenuator is placed before two splitters,the distance limit for error free transmission is 8km and

maximum reachable distance is 15.2km.

Case 2: When attenuator is placed between two splitters,

the distance limit for error free transmission is 26km and


Case 3: When attenuator is placed after two splitters, the

distance limit for error free transmission is 24km and


In the above three cases, second case is better. Herefirst 1x4 splitting is done and after a long distance, again

each of them splitted into 8


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Tx =2.5dBm , Rx =-25dBm

CL=Spice loss+ fiber loss+ connector loss+splitter loss

Dispersion penalty

Extra power required by the system tocompensate the dispersion.

Pd = -10 log (1- (3.14B)^2 * dt^2)

Tx = Rx +CL +Ms +Pd


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Unlimited Band width

No consumption of energy

Low cost of upgrade and operating

expenditures Reduced cable cost, as it enables sharing of

each fiber by many users

High quality of service


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Distance Learning

Telemedicine

Tele working

Peer to peer file sharing

Distributed computing

Online Gaming

HDTV Home Monitoring and home automation.

Applications


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Next-Generation FTTH Passive Optical

Networks-

Joseph Prat

Planning Fiber Optic Networks Bob ChomyczOptical Fiber Communications Gerd Keiser

Optical Fiber Communication John. M.

Senior

Optical Networks: A Practical Perspective

Rajiv Ramaswami & Kumar N. Sivarajan


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Documents

Ftth Final Presentation