01. introduction fttx

8/17/2019 01. Introduction FTTx

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Introduction of FTTx - FTTH

Fiber Optic Network

CommTech Training Center, Bandung, 16 Oktober 2015

ByRENDY MUNADI


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Introduction

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The deployment of quadruple-play services over next-

generation access networks :

1. Increased competition from Service Providers

2. Many new business and service delivery challenges

3. Multiple System Operator (MSOs) Telco and IPTV


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Higher W for Increased Service Offerings

Optical fiber-to-the home (FTTH) or based on a mixedfiber/copper technology (fiber-to-the curb [FTTC], fiber-to-the

business/building [FTTB]) Reduce the maintenance effort

More reliable than copper

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Konfigurasi Teknologi Jaringan Access

FTTx

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LE

C

T

O

L

T

O

L

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V5.x

V5.x

V5.x

ONU

ONU

ONU

ONU

RT

DLC

PON

AON

PS

ASP


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FTTx Technology

Down and Up Link Rate

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FTTx Technology

(ITU-T) has created several standards for optical access systems based on the PONarchitecture, as shown in Figures 2 and 3:

– One of the first standards was Broadband PON (BPON). It uses AsynchronousTransfer Mode (ATM) cells for transmission and has a maximum access speed of 155Mbps upstream and 622 Mbps downstream.

– The latest BPON standard suggests increasing the transmission capacity of 622Mbps upstream and 1.2 Gbps downstream. However, the consensus is that thetechnical hurdle of achieving synchronization at speeds higher than 622 Mbpsupstream is high given the BPON physical layer specification.

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FTTx Technology

–

Therefore, discussion of a new PON specification for gigabit-per-second-classtransmission began in April 2001. Because the new optical access system is capable ofgigabit-per-second transmission, it is called Gigabit PON (GPON), defined in ITU-TRecommendation G984.

– In 2004, The Institute of Electronic and Electrical Engineers (IEEE) defined theEthernet PON (EPON), or 10 Gbps EPON (GEPON), standard as part of theEthernet First Mile project. EPON uses standard 802.3 Ethernet frames withsymmetric 1 Gbps upstream and downstream rates. EPON is designed for data-centric networks as well as full-service voice, data, and video networks. The IEEETask Force P802.3av is currently designing the 10 Gbps EPON or 10GEPON.

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FTTx Technology

Organisasi Standard Akses optik

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FTTx Technology

NG-PON Activity Roadmap

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Broadband Forum

The Broadband Forum defines technical reports (TRs) and

working texts (WTs) that are related to home management.

One of the key specifications defined by the Broadband

Forum is TR-069.

The auto configuration server (ACS) as defined by theBroadband Forum, or the Remote Management System

(RMS) as defined by the Home Gateway Initiative (HGI), is

TR-069 capable and provides a TR-069 interface and data

model to remotely control and configure the remote gateway(RG) and other TR-069-enabled devices located in the home

network (HN).

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Broadband Forum

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Architecture Management (Broadband Forum Techn-Report)


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Standard Forum BB

Broadband access, control and home

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The auto configuration server (ACS)

ACS can remotely configure, troubleshoot, and manage a PON ONT with Layer 3 capabilitiesusing TR-069

Konfigurasi dan manajement layanan IP-Based

OMCI is the ONT Management and

Control Interface. The OLT uses the

OMCI to control an ONT. This protocol

allows the OLT to:

– Establish and release connections

across the ONT

– Manage the User to Network Interfaces

(UNIs) at the ONT – Request configuration information and

performance statistics

– Autonomously inform the system

operator of events such as link failures

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Performance Management(Diagnostic)

The TR-069 management protocol provides CPE statistics collection via

the ACS to support diagnostics, connectivity, or service issues

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FTTx and xDSL

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Broadband Access Standard untuk FTTx dan xDSL


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GPON Performance Management and Diagnostics

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Available PON Networks

PON Networks

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Testing Methodologies

Physical Layer Test and Troubleshooting—

ONMS PON

Testing PONs with Optical Time Domain Reflectometers (OTDR)

The OMCI specification determines the status of the ONT and the Physical Media

Dependent (PMD) layer. OMCI requires communications between the OLT and

the ONT. When the ONT does not respond, either due to a fault or because it isnot installed or commissioned yet, it is impossible to determine if the problem

originates in the ONT or the PMD, which explains why many operators require an

external test system that can test the PMD when the ONT is unreachable.

An optical time domain reflectometer (OTDR) can pinpoint the location of faults in a

fiber link and certify the workmanship involved in an installation. OTDRs find andcharacterize both reflective and non-reflective events in optical fiber runs by

sending laser pulses of different widths,

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Testing MethodologiesOTDRs find and characterize both reflective

and non-reflective events in optical fiber

runs by sending laser pulses of different

widths

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PON test system for troubleshooting

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How to use the PON test system for troubleshooting.

An operator receives an alarm from the ONT or a call from a

customer.

Using the PON test system, the operator can immediately

check if the fiber is okay.The operator initiates an OTDR measurement on the

suspected PON and the result is compared with the records

to determine changes in the customer’s fiber attenuation.

The disappearance of the peak typically indicates that a fiber

cut or additional attenuation is the cause of the problem.

PON test system for troubleshooting

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Existing and Target Platform

Existing and Target Platform Untuk

Mendukug Layanan dan Infrastructur

NGN di Indonesia dalam Era

Konvergensi

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Existing & Target FWL Platform

OAN

IP DSLAM

MSOAN

Backbone Interface/ServicesAccess Network

SDH (Narrowband)

GigE

(Broadband)

ATM (Broadband)

POTS

ISDN

Leased Line

xDSL (Triple Play)

POTS

ISDN

Leased Line

xDSL (ATM based, IPTV not ready)

MSAN/AGW

GigE (Broadband)

POTS / voice packet

Leased LinexDSL (IP Based, IPTV ready)

SDH (Narrowband)

Provide Narrowband

Services Only

Provide Broadband

Services Only

Provide Broadband

& Narrowband Services with

separate Uplink for

Broadband & Narrowband

Provide Broadband& Narrowband Services with

Single IP Uplink . It has AGW

capability

GE-PON/FTTxProvide Broadband

Services with Single IP Uplink

based on Optical fiber e2e

E x i s t i n g P l a t f o r m

T a r g e t P l a t f o r m

GigE (Broadband)POTS / voice packet

Leased Line

FTTx (IP Based, IPTV ready)

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Access Architectures for NGN2

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Central Office Cabinet BuildingPrimary

(200-3000m)

Secondary

(100-700m)

FTTE

xD S L

ADSL2+

3-20 Mbps


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T

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O

P

O

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T HUN

2007 2008 2009 2010

OAN

MSOAN

FTTx/GE-PON

AGW/ MSAN

XDSL/IPDSLAM

2011

FTTx

METRO ETHERNET

Roadmap Technology Platform FWL

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Thank You

[email protected]

01. introduction fttx

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