GPON PRESENTATION Eric Saniard 2018 Agenda Basic Concepts of PON - - PowerPoint PPT Presentation

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GPON PRESENTATION Eric Saniard 2018 Agenda Basic Concepts of PON - - PowerPoint PPT Presentation

Apr 15, 2023 588 likes •1.05k views

GPON PRESENTATION Eric Saniard 2018 Agenda Basic Concepts of PON PON Standards Overview of Optical Access Network GPON mode of protection GPON power budget Management and service provisioning Basic Services over GPON Network Main Vendors

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GPON PRESENTATION

Eric Saniard 2018

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Agenda

Overview of Optical Access Network PON Standards GPON power budget Basic Concepts of PON Management and service provisioning Basic Services over GPON Network Main Vendors & Example of installation

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GPON mode of protection

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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.

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What is PON?

Passive Optical Network

OLT

ONU Optical Line Terminal Optical Network Unit Passive Optical Splitter 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 Optical Splitter Feeder Optical Distribution Network ODN

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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 Access Technology Service requirements VoD HDTV Game Live TV VoD HDTV <3km <2km <1km ~20-30km Coverage diameter

Why PON ?

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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 adopts two 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

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Broadcast mode

GPON Principle --- Downstream Data

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TDMA mode GPON Principle --- Upstream Data

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PON Standards

This chapter analyses major GPON standards and evolutions.

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Recent progress in PON Standards

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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

  • ptical access network.

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Architecture of Optical Access Network

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Architecture of Optical Access Network

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GPON mode of protection

This chapter shows the three main types of GPON protection

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GPON Network Protection Mode

Type A: No protection

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GPON Power Budget

This chapter describes GPON optical power budget.

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

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

Input Output

1:2 optical splitter 2:N optical splitter

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

Input Output

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Optical Power Attenuation

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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 km for 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 ONU can accept a total loss of 28 dB

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Fiber Attenuation and Power Budget

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Parameters of GPON Interfaces (Class B+)

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Parameters of GPON Interfaces (Class B+)

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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

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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 number ONT ONT ONT ONT 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 3 Use OMCI to finishing data configuration on ONT

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GPON Service Provisioning and Zero Configuration on Terminals

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Basic Services over GPON Network

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

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BRAS AAA Server

IP Core ASP/ISP CPE

MSE Ethernet OLT

Soft switch Intern et VoD Server Middle ware

NMS TL1/CORBA /API

BB service platform

Carrier’s OSS Notification IPTV Phone PC SFU Phone PC SBU CPE MDU VDSL

NSP

IP Voice

CBU

E1 FE

ODN

Splitter Base station

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Triple Play in GPON

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ONT OLT

CO

LE Splitter 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

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TDM service solutions in GPON

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EDFA

（Erbium Doped Fiber Amplifier）

Optical Couplers （WDM）

OLT

(Optical Line Terminal)

ONU

(Optical Network Terminal)

Central Office

Video 1550nm Voice/Data& Video 1490/1310nm，1550nm Voice/Data Downstream 1490nm Upstream 1310nm

Customer Premises

Optical Splitter Video （RF） IP

Voice and Data @1250Mbps Voice and Data @2500Mbps Video

Analog TV Digital TV HD/VOD

42Mhz 550Mhz 860Mhz

Upstream Downstream

1310nm 1490nm 1550nm

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RF Overlay Service Solution in GPON

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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)

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H x W x D: 493 mm x 287 mm x 486 mm 5800-X2: Switching capacity: 480 Gbit/s 32 x GPON/EPON 96 x GE/FE 16 x 10G GPON/10G EPON 16 x 10G GE 64 x E1 H x W x D: 442 mm x 268.7 mm x 88.1 mm 5800-X17: Switching capacity: 7 Tbit/s 272 x GPON/EPON 816 x GE/FE 136 x 10G GPON/10G EPON 136 x 10G GE 544 x E1 Slide #30

Examples of Huawei OLT

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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)

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Optical Fibre Cable

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

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Optical Fibre Cable

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Installation: 4 - Optical fiber cable arrival in Private domain

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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

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AON

  • Active Optical Network

APON

  • 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 PON

FSAN

  • Full Service Access Network

FTTC

  • Fiber To The Curb

FttD

  • Fiber To The Desk

FTTN

  • Fiber To The Node

FTTP

  • Fiber To The Premises

GbE

  • Gigabit Ethernet

GE-PON

  • Gigabit Ethernet Passive Optical

Network GEPON

  • Gigabit Ethernet PON

GPON

  • Gigibit PON

HFC

  • Hybrid Fiber Coaxial

HFC-PON

  • Hybrid-Fiber-Coax PON

OAN

  • Optical Access Network

OCn

  • Optical Carrier

ODN

  • Optical Distribution

Network OEC

  • Optical Electrical

Converter ONT

  • Optical Network Terminal

[ITU-T] ONU

  • Optical Network Unit

[IEEE] OLT

  • Optical Line Terminal

OLT

  • Optical Line Termination

OLT

  • Optical Line Terminal

OMCI - ONU Management and Control Interface PMD

  • Physical Medium

Dependent POL

  • Passive Optical LAN

PON

  • Passive Optical Network

RFoG

  • RF over Glass

RF-PON

  • Radio Frequency PON

TDM-PON - Time Domain Multiplexing PON UNI

  • User Network Interface

WDM-PON - Wavelength Division Multiplexing PON

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GPON Acronyms & Abbreviations:

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Thank You