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GPON,ftth technology. Presented by. Himani Deshmukh Neelam Dewangan Soyenka Bhowmik Saurabh Ghosh. CONTENT. FTTX Future of FTTH PON a Simple view Types of PON GPON Overview Fundamentals of GPON PON advantage Comparison Of PON With Other Broadband Access Technologies. FTTX.

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Presented by

  • GPON,ftth technology

Presentedby

  • Himani Deshmukh

  • Neelam Dewangan

  • Soyenka Bhowmik

  • Saurabh Ghosh


Content

CONTENT

FTTX

Future of FTTH

PON a Simple view

Types of PON

GPON Overview

Fundamentals of GPON

PON advantage

Comparison Of PON With Other Broadband Access Technologies


Presented by

FTTX..

FTTX is of 4 types:

FTTH: Fiber To The Home

FTTB: Fiber To The Building

FTTC: Fiber To The Curb

FTTN: Fiber To The Node

WHY CHOOSE FIBER?

Superior Performance

Ease of Installation

Easy to Upgrade

Smaller size and lighter weight


The ftth access network olts in the central office onus in cpes

The FTTH Access Network – OLTs In The Central Office, ONUs in CPEs


Future of ftth

FUTURE OF FTTH

FTTH access networks will provide ample bandwidth for 5, 10 and even 20 years or more.

FTTH can redefine performance parameters to support future applications.

An example of this is support for Dynamic Bandwidth Allocation or DBA.

FTTH provide different bandwidth priorities to subscribers so that different application service requirements can be supported.

For example, it may be critical for high-definition IP TV to have priority download of a time-sequenced video frame and not so critical for a user accessing email. All GPON suppliers must have programmable DBA.


Pon a simple view

PON A SIMPLE VIEW

In a PON system, a single fiber connects multiple customers to a single transceiver at the central office (CO).

The single fiber is split, using a passive optical splitter, to serve up to 32customers.

Not only does PON reduce the amount of fiber required, but a single transceiver serves multiple customers instead of requiring one per customer.


What is pon

WHAT IS PON ?

Passive Optical Network.

Facilitates another (higher bandwidth) broadband access technology

Competes with and complements xDSL, cable modem and fixed

wireless

With a PON, optical fiber is deployed either all the way or almost all

the way to the end user (VDSL)

Passive because

–- network only consists of passive light transmission components (fiber

links, splitters and couplers)

–- This creates great cost savings for the provider (more reliable and less

costly to operate/troubleshoot)

PONs use a Point-to-Multi-Point (P2MP) topology


Pon network splits single fiber link into individual links to subscribers

PON Network Splits single fiber link intoindividual links to subscribers


Pon terminology

PON TERMINOLOGY

ODN – Optical Distribution Network

– An ODN realizes the optical transmission from the OLT towards

the users and vice versa. It utilizes passive optical components.

OLT – Optical Line Termination

– An OLT is the service provider endpoint of a PON and is placed in

a CO or head end

ONT – Optical Network Termination

– An ONT is a device that terminates the PON and presents native

service interfaces to the user. An ONT is typically located on the

customer’s premises.

ONU – Optical Network Unit

– An ONU is the PON-side half of the ONT, terminating the PON,

and may present one or more converged interfaces, such as xDSL

or Ethernet, toward the user. An ONU typically requires a separate

subscriber unit to provide native user services such as telephony

telephony,

Ethernet data, or video.


Types of pon

TYPES OF PON

There are various types of PONs. The general

technology is the same. The differences are in the

specifications and upper layer protocols.

– APON – ATM based PON uses ATM encapsulation of the

transported data.

– BPON – Broadband PON succeeded APON and also uses

ATM encapsulation. Supports superior features, higher

speeds and was standardized by the ITU-T.

– EPON or GE-PON – Ethernet PON uses Ethernet for data

encapsulation. Standardized by the IEEE in mid-2004.

-GPON or Giga PON – Gigabit PON uses a new Generic

Encapsulation Method (GEM) transport layer that supports

ATM, Ethernet and TDM data transport.


Presented by

  • EVOLUTION OF TYPES OF PON

GPON 2,5GB

EPON 1,25GB

1000

BPON 622MB

SPEED [MB/s]

APON155MB

100

PON54MB

1998

2006

2008

1990

1992

1994

1996

2000

2002

2004

YEARS


Gpon overview

GPON OVERVIEW

Gigabit PON is an attractive FTTH broadband access network technology because it meets the needs of carriers world-wide.

GE-PON (EPON) has successfully demonstrated this approach and is

being deployed in high volume in Asia.

It is an access method transported by optical fiber, FTTx.

Is a point to multipoint access, one central point can

reach from 32 to 128 premises. There are only two types

of equipments the OLT (central) and the ONT’s (in

customer premises)

It includes all of the ingredients for market success –a consumer base that is eager to adopt a much faster and more comprehensive set of high-speed

services,


Fundamentals of gpon infrastucture

FundamentalsofGPON Infrastucture

Optical Line Optical

Terminal(OLT) Splitter ONT

ONT

ONT

The Optical Line Terminal (OLT)

• Acts as the central aggregation element.

• Located in the Core Data Center.

• Replaces multiple L2 switches.

• Can aggregate thousands of end users.


Fundamentals of gpon infrastucture1

FundamentalsofGPON Infrastucture

Optical Line Optical

Terminal(OLT) Splitter ONT

ONT

ONT

Passive Optical Network (PON)

• Completely passive infrastructure

• Single fiber (32:1)

carries multiple wavelengths

• 2.48 Gbps downstream

• 1.24 Gbps upstream Serve Remote Bldgs Up to 20Km


Fundamentals of gpon infrastucture2

FundamentalsofGPON Infrastucture

Optical Line Optical

Terminal(OLT) Splitter ONT

(32:1)

ONT

ONT

Passive Optical Splitter Feeding FDH

•Rack Mount or Cassette versions

• Splits single fiber up to 32 ways

• Can be located in the IDF/TR, under a raise floor, in a ceiling zone box, or in a manhole.

• The further the splitter is extended to the desk,

the greater the savings in fiber infrastructure .


Fundamentals of gpon infrastucture3

FundamentalsofGPON Infrastucture

Optical Line Optical

Terminal(OLT) Splitter ONT

ONT

ONT

Optical Network Terminals (ONT)

• Terminates the fiber at the end user

• Provides Data, VoIP, IP Video services

• Some models also provide native POTS

• Desktop and MultiDesk Unit models


Pon advantage

PON ADVANTAGE

shared infrastructure translates to lower cost per customer

minimal number of optical transceivers

feeder fiber and transceiver costs divided by N customers

Greenfield per-customer cost similar to UTP

passive splitters translate to lower cost

can be installed anywhere

no power needed

essentially unlimited MTBF

fiber data-rates can be upgraded as technology improves

initially 155 Mbps

then 622 Mbps

now 1.25 Gbps

soon 2.5 Gbps and higher


Presented by

  • Edge Switches vs. Passive Fiber Splitter

BEFORE

AFTER


Comparison of pon with other broad band access techologies dsl vdsl cable modem

COMPARISON OF PON WITH OTHER BROAD BAND ACCESS TECHOLOGIES (DSL,VDSL, cable/modem)

ADVANTAGES

These include a long-term life expectancy of the fiber infrastructure,

lower operating costs through the reduction of “active components, support for greater distances between equipment nodes

most importantly, much greater bandwidth.

DSL-certain megabits per sec, FTTH pon 1 to 2.5Gbps


Continue

Continue..

Since Pon uses only passive components

it has low power requirements

less no of technicians

cost savings up 40 t0 60%

Savings mainly result from lower customer contacts associated with service orders and trouble reporting, outside plant operations, central office operations, and network operations.

It provides high bandwidth for high-speed Internet access, video on demand,IPTV and voice over IP (VoIP) .


Presented by

THANK YOU

For your time and

consideration


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