GPON PRESENTATIONEric Saniard

2018

Agenda

Overview of Optical Access NetworkPON Standards

GPON power budget

Basic Concepts of PON

Management and service provisioningBasic Services over GPON NetworkMain Vendors & Example of installation

Slide #2

GPON mode of protection

Basic Concepts of PON

This chapter describes the basic concepts and working principles of PON network. This chapter introduces the basic architecture, upstream and downstream working principles of the PON network.

Slide #3

Slide #4

What is PON?

Passive Optical Network

OLTONU

Optical Line Terminal

Optical Network Unit

Passive OpticalSplitter

PSTN or VoIP

Internet

IPTV/CATV

ONT

ONT

Ø PON is a kind of passive optical network, broadband point to multiple-points architecture;Ø PON is short for Passive Optical Network ;Ø GPON consists of Optical Line Terminal (OLT), Optical Network Unit/Terminal (ONU/ONT) and Optical Distribution Network (ODN) including Passive Optical Splitter.

Passive OpticalSplitter

Feeder

Optical Distribution NetworkODN

Slide #5

Ø PON is a kind of passive optical network, broadband point to multiple-points architecture;Ø PON is short for Passive Optical Network ;Ø GPON consists of Optical Line Terminal (OLT), Optical Network Unit/Terminal (ONU/ONT) and Optical Distribution Network (ODN) including Passive Optical Splitter.

• GPON（Gigabit Passive Optical Networks）• GPON supports Triple－play service, providing competitive all-service solution.• GPON supports high-bandwidth transmission (2.5Gbps – 1.25 Gbps)• GPON supports the long-reach (Typically 20 km) service coverage.• GPON is the choice of the large carriers operators.• GPON evolution: same Infrastructure can support new standards such: XG-PON(10Gbps-2.5Gbps), XGS-PON,

TWDM-PON (10Gbps-10Gbps) and near future > 40G & 100G

<1Mbps 3M 8M 25M

ADSL/ADSL2+Copper Based

VDSL / ADSL2+Copper Based

G-PON, XGS-PON, TWDM-PON Fiber Based

2002 2003 2006 2018

Time

100M 2.5G 10G

Internet

Video conferencing

Remote control

AccessTechnology

Servicerequirements

VoD

HDTV

Game

Live TV

VoD

HDTV

<3km <2km <1km ~20-30kmCoveragediameter

Why PON ?

Slide #6

Ø PON is a kind of passive optical network, broadband point to multiple-points architecture;Ø PON is short for Passive Optical Network ;Ø GPON consists of Optical Line Terminal (OLT), Optical Network Unit/Terminal (ONU/ONT) and Optical Distribution Network (ODN) including Passive Optical Splitter.

GPON adopts Wavelength Division Multiplexing (WDM) technology, facilitating bi-directional communication over a single fiber.

To separate upstream/downstream signals of multiple users over a single fibre, GPON adoptstwo multiplexing mechanism:– In downstream direction, data packets are transmitted in a broadcast manner;– In upstream direction, data packets are transmitted in a TDMA manner.

1490nm

1310nm

GPON Principle --- Data Multiplexing

Broadcast mode

GPON Principle --- Downstream Data

Slide #7

TDMA mode

GPON Principle --- Upstream Data

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PON Standards

This chapter analyses major GPON standards and evolutions.

Slide #9

Slide #10

Recent progress in PON Standards

Overview of Optical Access Network

This chapter describes the architecture of the optical access network.Besides, this chapter describes various devices applied in the FTTx network and you can get a knowledge of those devices applied in the optical access network.

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Slide #12

Architecture of Optical Access Network

Slide #13

Architecture of Optical Access Network

GPON mode of protection

This chapter shows the three main types of GPON protection

Slide #14

Slide #15

GPON Network Protection Mode

Type A: No protection

GPON Power Budget

This chapter describes GPON optical power budget.

Slide #16

Ø Power attenuation calculation of Optical splitter

Ø Input attenuation of optical splitter(<1dB):

∑(Power input) - ∑(Power output of all branch)

Input Output1:2 optical splitter

2:N optical splitter

Attenuation of 1:2 splitter: 3dBAttenuation of 1:4 splitter: 6dBAttenuation of 1:8 splitter: 9dBAttenuation of 1:16 splitter: 12dBAttenuation of 1:32 splitter: 15dB Attenuation of 1:64 splitter: 18dBAttenuation of 1:128 splitter:21dB

Input

Output

Slide #17

Optical Power Attenuation

Ø Fibre attenuation relates to the fibre length

Ø The attenuation of fibre splicing point is

typically 0.1dB/02dB

Ø Other factors may cause attenuation, such

as fibre bending

About 0.5 dB max per kmfor 1310nm and 0.3dB max per Km for 1490nm

Table G.984.2 – Classes for optical path loss

Class A Class B Class B＋ Class C

Minimum loss 5 dB 10 dB 13 dB 15 dB

Maximum loss 20 dB 25 dB 28 dB 30 dB

NOTE – The requirements of a particular class may be more stringent for one system type than for another, e.g. the class C attenuation range is inherently more stringent due to the use of a 1:2 splitter/combiner having a loss of about 3 dB.

A class B+ OLT and ONUcan accept a total loss of 28 dB

Slide #18

Fiber Attenuation and Power Budget

Slide #19

Parameters of GPON Interfaces (Class B+)

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Parameters of GPON Interfaces (Class B+)

Management and Service Provisioning

This chapter describes GPON management and service provisioning.

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GPON NMS provides all the management needs through an intuitive GUI for: Ø configuration, Ø Maintenance,Ø Troubleshooting, Ø Seamless integration into an OSS environment with northbound interfaces,Ø ONU/ONT plug & play.Ø Some vendors can support integrated OTDR.

NMS is connected with OLTs only through a DCN

Slide #22

GPON NMS

Carriers’ nightmare

Application scenario

Service Provisioning

NMS

Access Network

Billing

1 Subscribe for services

2 Configure service network

3

Order Management

Start up ONT and make registration with serial numberONTONT

ONTONT

CRM

User

Send terminals to users

1

2

Finish the auto-configuration of OLT

Initial configurations (such as service system information configuration, data configuration) are required on terminals and then they can be put into use. To finish these configurations, it is not cost-effective to carriers.

GPON supports zero configuration on terminals and plug-and-play of terminals, which is cost-effective.

Flexible Configuration plan of GPON

STB

3Use OMCI to finishing data configuration on ONT

Slide #23

GPON Service Provisioning and Zero Configuration on Terminals

Basic Services over GPON Network

This chapter describes basic services provided by GPON System, such as Triple-play, TDM and RF overlay services.

Slide #24

BRASAAA Server

IP Core

ASP/ISPCPE

MSE

Ethernet

OLT

Soft switch

Internet

VoD ServerMiddleware

NMS

TL1/CORBA/API

BB service platform

Carrier’s OSS

Notification

IPTV

Phone

PC

SFU

Phone

PCSBU

CPE MDUVDSL

NSP

IP

Voice

CBU

E1FE

ODN

Splitter

Base station

Slide #25

Triple Play in GPON

ONT

OLT

CO

LESplitter

ONT

BUSINESS

PBX

PBX

E1/T1

ODN

E1/T1

E1/T1

FE

PSTN

CESoP mode

Native mode

l With guaranteed QoS, GPON ensures the parameter indexes of TDM service, such as end-to-end delay, Jitter and error bit rate.

l OLT supports processing TDM service in Native and CESoP modes.

l With fixed upstream/downstream frame structure, periodic multiframes are transmitted in GPON line. So, GPON can transmit TDM service with first-born advantage.

ONT

Slide #26

TDM service solutions in GPON

EDFA（Erbium Doped Fiber Amplifier）

OpticalCouplers（WDM）

OLT(Optical Line Terminal)

ONU(Optical Network Terminal)

Central

Office

Video1550nm

Voice/Data& Video1490/1310nm，1550nm

Voice/DataDownstream 1490nm

Upstream 1310nm

Customer

Premises

Optical Splitter

Video

（RF）

IP

Voice and Data@1250Mbps

Voice and Data@2500Mbps

Video

Analog TV Digital TV HD/VOD42Mhz 550Mhz 860Mhz

Upstream Downstream1310nm 1490nm 1550nm

Slide #27

RF Overlay Service Solution in GPON

Main vendors & Installation example

This chapter highlights the main GPON vendors with some examples of products. Then, an example of FTTH installation in Paris is shown in last slides

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ADTRAN (USA)Allied Telesis (Japan)Altice Labs (Portugal)Calix (USA)Cisco (USA)DASAN (Korea, Ex – Zhone)FiberHome (China)Fujistu (Japan)

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Main GPON Vendors

Huawei (China)NEC (Japan)Nokia (Finland, Ex - Alcatel-Lucent)Raisecom (China: This company has Implemented a GPON network in Nigeria)Tellabs (USA)ZTE (China)

H x W x D:493 mm x 287 mm x 486 mm

5800-X2:Switching capacity: 480 Gbit/s32 x GPON/EPON96 x GE/FE16 x 10G GPON/10G EPON16 x 10G GE64 x E1

H x W x D:442 mm x 268.7 mm x 88.1 mm

5800-X17:Switching capacity: 7 Tbit/s272 x GPON/EPON816 x GE/FE136 x 10G GPON/10G EPON136 x 10G GE544 x E1

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Examples of Huawei OLT

Slide #31

Examples of Nokia ONTs

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Optical Distribution Network (ODN) Passive Accessories

Splitter 1/8 Splitter 1/32

Floor distribution board

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Installation: 1- CENTRAL OFFICE OLT & ODF

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Installation: 2 - Optical fiber cable in existing infrastructure (example: sewers)

Optical Fibre Cable

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Installation: 3 - Optical fiber cable in existing infrastructure (from sewers to upper side)

Optical Fibre Cable

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Installation: 4 - Optical fiber cable arrival in Private domain

Optical Fibre Cable

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Installation: 5 - Optical fiber cable arrival in Building

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Installation: 6 – Arrival of optical fiber cable in the building splitter box (Multi operators)

Optical fiber coming from underground

Optical fiber going To upper floors

Splitters and distribution

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Installation: 7- Building connection box

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Installation: 8 - Distribution box per floor

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Installation: 9 – Subscriber connection box

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Installation: 10 - ONT

AON - Active Optical NetworkAPON - ATM Passive Optical Network

[same as ATM-PON]ATM-PON - ATM PON [same as BPON]

BPON - Broadband Passive Optical Network

CPE - Customer Premises Equipment

DBA - Dynamic Bandwidth Allocation

DOCSIS - Data Over Cable Service Interface Specification

EFN - Ethernet in the First Mile

EPON - Ethernet PONFSAN - Full Service Access Network

FTTC - Fiber To The CurbFttD - Fiber To The DeskFTTN - Fiber To The NodeFTTP - Fiber To The PremisesGbE - Gigabit EthernetGE-PON - Gigabit Ethernet Passive Optical

NetworkGEPON - Gigabit Ethernet PONGPON - Gigibit PONHFC - Hybrid Fiber CoaxialHFC-PON - Hybrid-Fiber-Coax PON

OAN - Optical Access NetworkOCn - Optical CarrierODN - Optical Distribution

NetworkOEC - Optical Electrical

ConverterONT - Optical Network Terminal

[ITU-T]ONU - Optical Network Unit

[IEEE]OLT - Optical Line TerminalOLT - Optical Line Termination

OLT - Optical Line TerminalOMCI - ONU Management and

Control Interface

PMD - Physical Medium Dependent

POL - Passive Optical LANPON - Passive Optical Network

RFoG - RF over GlassRF-PON - Radio Frequency PONTDM-PON - Time Domain

Multiplexing PONUNI - User Network InterfaceWDM-PON - Wavelength Division

Multiplexing PON

Slide #43

GPON Acronyms & Abbreviations:

Thank You