FTTH: B-PON, GPON, EPONDon McCulloughVP MarketingEricssonMay 9, 2007

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Technology Choices for the Future

You are never too thin, never too rich and

You never have enough bandwidth.

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PON Agenda

� Market Drivers

� Technology

� Q&A

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Acronyms

� PON: Passive Optical Network– FTTH: Fiber to the Home– B-PON: Broadband PON– GPON: Gigabit PON– EPON: Ethernet PON– ODN: Optical Distribution Network

� PON System components– OLT: Optical Line Terminal– ONT: Optical Network Terminal– WDM: Wave Division Multiplexing

� Digital Subscriber Line– ADSL: Asymmetric Digital Subscriber Line– VDSL: Very High Speed Digital Subscriber Line– DSLAM: Digital Subscriber Line Access Module

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Market Drivers for GPON

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What’s Causing the Need for Speed?

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Copper to Fiber: Circuit to PacketSteep traffic increases in access & aggregation required

Gbps

Mbps

Bandwidth:• From 1.5 Mbps to 1 Gbps

Circuit to Packet• TDM/ATM to IP

IP Services

TDM/ATM

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Law of Physics: BW versus Reach

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Shortening Copper Access LoopsPOTS 18Kft loops

DLC 12Kft loopsClass 5 switch

DSLAM

ADSL 12Kft loops

100 Mbps

VDSL2 <4Kft20-50 Mbps

PON

PON

1.5 – 3.0 Mbps

Dial up

FTTH

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PON Technology Comparison Chart

64 Users

1.25 Gbps Symmetric

Ethernet

IEEE803.2ah

E-PON

32 users64 usersMaximum split ratio

622 Mbps Downstream

155 Mbps Upstream

2.5 Gbps Downstream

1.2 Gbps Upstream

Speed

ATMGPON Encapsulated Mode (GEM) supports:

�Ethernet

�TDM

�ATM

Protocol

ITU G.983ITU-T G.984Standard

B-PON

Broadband (ATM) PON

GPON

Gigabit-capable PON

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Bandwidth Demand Rising

• MetroEthernet access for business

• Government, schools, community access

• Triple Play to existing homes

• New home with value added communications

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PON Trends World-wide

GPON

GPON

GPON

GPONBPON

GE-PON

GPONBPON

GPON/EPON

GPON/EPON

GPON/EPON

GPON

GPON has the potential to become the global standard

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PON – A Multi $B growth market

Global PON Equipment Revenues

0

500

1000

1500

2000

2500

2004 2005 2006 2007 2008 2009

M$

GPON

EPON

BPON

GPON displacing EPON/BPON and accelerating Fiber roll-outs

Source: Infonetics

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PON Cost Factors

C.O.

Full Service Access Network (FSAN)

Video

Voice

Data

ONT65% TO 855 of network cost

SpeedMore subscribers/PONHigher speed services/sub

Split ratio OLT cost efficiency

GPON 2.5GEPON 1.25G

GPON 1.25GEPON 1.25G

OLT

ONT

ONT

Access systems face extreme price pressure

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PON Competitors

� North America– Alcatel-Lucent

– Ericsson

– Tellabs

– Motorola

– Calix

� Rest of World– Alcatel-Lucent

– Huawei

– Ericsson

– ZTE

– Hitachi

– ECI

– Nokia-Siemens

PON Technology

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B-PON & GPON StandardsITU-T G.983 & G.984

� Initiated by Full Service Access Network (FSAN) – Carrier lead: BT, ATT, NTT, TI, FT, DT, etc

� Comprehensive specification – PHY layer to OAM&P

� Interoperability initiatives– BPON

� NTT 03/2004, SBC 09/2004, Globalcomm 06/2005

– GPON � 05/2006 at Telcordia – 10 participants � 09/2006 in San Jose, CA U.S.A.� 12/2006 at ITU Conference in Hong Kong� May 7, 2007 at FSAN Lannion France

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EPON Standard: IEEE 802.3ah

� IEEE 802.3ah Ethernet in the First Mile (EFM) is an amendment to IEEE 802.3

� Comprised of P2P and P2MP (EPON)

� Additions to the 802.3 standard for compliance with architecture:

– Multi-point control protocol (MPCP) - timeslot allocation

– OAM - Operations, Administration, and Maintenance (OAM) for subscriber access networks

– Shared-Medium Emulation (SME) or P2P Emulation sub-layer

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ITU PON Network Architecture

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B-PON or GPON Solution

Soft Switch

Class 5Switch

IP Router

B-PON622 Mbps @ 1490nm155 Mbps @1310nmRF @ 1550 nm

OLT

n

VideoHeadend

Fiber-To-The-Home

Fiber-To-The-Curb/Node

Fiber-To-The-Business

Multi Dwelling UnitMulti Tenant Unit

EDFA

RF video 1550nm

W

D

M

ONT

GPON2.5 Gbps @ 1490nm1.25 Gbps @1310nmRF @ 1550 nm

Voice

ATM

Ethernet

IPTV

RFVideo

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1 2 3

12

3

12 3

PON functional overviewDownstream Voice & Data

– Continuous TDM broadcast

– GPON = 2.5 Gbps

– OLT – ONT Security: AES

Downstream video using a separate wavelength

– 55-870 MHz RF ≈ 5.2 Gbps

Upstream– GPON = 1.2 Gbps

– TDMA Time Division Multiple Access assigned burst for bandwidth sharing

1 2 3

1

2

3

OLT

ONT

ONT

ONTUp to 32

DownstreamVoice & Data @ 1490 nm

1 2 32

1

3

OLT

Up to 32

Upstream @ 1310 nm 1

2

3

ONT

ONT

ONT

OLT

ONT

ONT

ONT

DownstreamVideo @ 1550 nm V

V

V

V

Up to 32

ONTs filters out its own data based on MAC/VPI/VCI/ID from downstream TDM. Downstream security maintained by encryption keys.

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PON OLT System

� Density– Service 24 to 120 PON ports

– 750 to 7500 Subscribers

� Switching capacity– 48 Gbps to 320 Gbps

– Concentration 5:1 to 1:1

� PON OLT blades– B-PON and GPON compatibility

– Density

� Uplinks to the network– TDM for voice

– ATM

– Ethernet GigE and 10G*2008

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Single Family ONT

� Services– POTS

– RF Video

– IPTV

– Ethernet services

� Environmental– Indoor (North America)

– Outdoor (Rest of World)

� Cost

� Powering– Locally powered

– Battery back up

� B-PON or GPON or both

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OLT and ONT Interoperability

� OLT and ONTs from different vendors must interoperate– Prove standards compliance

– Lower long term cost via competition

� FSAN history of interop testing– Similar to DSL plug-fests

– B-PON and now GPON

– May at Telcordia in N.J. U.S.A.

– September in San Jose, CA U.S.A.

– December at ITU Conference in Hong Kong

– May at FSAN in Lannion France

– Going on this week

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PON Discovery & Activation Principles

1

N

OLT

ONT

ONT

1. OLT opens a discovery window granting new ONTs on PON to communicate with OLT

4. OLT assigns the new ONT an ID and a time stamp (gate for start & stop time) for upstream TDMA

ONT

3. OLT measures Round Trip Time

2. New ONT sends identity and configuration information to the OLT

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Multi-cast Video and IPTV Services

� Point-to-point service (VOD or data) requires connectivity and bandwidth

� Multicast of popular channels saves transport and bandwidth

� Multicast requires 1-to-many switching in the access system

� Internet Group Multicast Protocol (IGMP) provides multicast (1:many)

switching in IP networks

STBsFTTH ONT

Multicast

Multicast

Multicast

Multicast

VOD

VODMulticast source

Multicast channels are transported once and

viewed by many

Multicast channels are transported once and

viewed by many

VOD source

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PON ComponentsSplitters

� The optical splitter is a passive device

� Splitters are a main component of PON

� Depending on the light direction, this device either splits the incoming light and distributes it to multiple fibers or combines it onto one fiber

� A variety of types are available to meet the architectural requirements of OAN

� 1X2

� 1X4

� 1X8

� 1X16

� 1X32

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Other Topics in PON

� Split ratios 1:32 versus 1:64

� Quality of Service (QoS)

� Security and Encryption

� Bandwidth Sharing with Dynamic Bandwidth Allocation

� Multi-Dwelling Unit ONTs

� Business services

� Regulation and video franchises

� Management and OSS interfaces

� Optical effects of RF video

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PON Future: WDM PON or 10G PON

Optical

Network O/O

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T3/E3

ATM

FR

SAN

GbE

E/B/GPON OLT

TDM (2G)Packet (3G)

Standards? Work in progressNGN FSAN activity

Transport

WDM

Service

GPON, EPON, SDH/SONET, GbE, ESCON, etc…

Voice, Internet, IPTV, SAN, etc..

Q&A

Thank You