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FTTH Solution Overview

Source: | Author:Admin | Published time: 2022-04-14 | 155 Views | Share:
FTTH solution uses one optical fiber network to bear multiple services, providing high speed Internet (HSI), Wi-Fi, voice, video, and CATV services for home-connected users. This superior solution removes the bottleneck between homes and the backbone network to implement its ultra-broadband architecture and simple, flattened network structure, facilitating easy deployment and O&M.

Outside plant

OSP is any network infrastructure installed external to buildings. Scope includes optical fiber cabling, balanced twisted-pair cabling, and support assemblies FDT,FAT,Closure and so on of the network node which carrying the network service.

 

Inside plant

ISP refers to cable and devices installed inside of the building. This includes everything from the patch panel, patch cord, TB,ATB,STB,ONT and switch to the cables and jacks which finishing the network access to end users.

 

A Single Optical Network That Bears Multiple Services

Network environments have changed: multi-service networks have become a trend, enabling every household network to bear multiple services.

 

Deployment and O&M Face New Challenges

Optical fibers are routed to maximize coverage and reach as many users as possible, requiring networks to be simpler and easier to deploy, operate, and maintain.


FTTH Typical Networking

FTTH has the following three typical networking models. SFU ONT can be regarded as a pipe providing L2 data and voice services. HGW ONT provides L3 services; it is the center of a manageable home network and can be regarded as the "tap" of the smart pipe.

 

Bridging-type ONT+HGW

Equipped with a built-in IAD, HGW provides users with Internet access, VoIP, and IPTV services. The bridging-type ONT works with the OLT to provide L2 channels.

Bridging+Voice-type ONT

Equipped with a built-in IAD, the ONT provides users with L2 data services and voice services. This scenario provides transparent transmission channels and requires simple service configuration, so this scenario applies to L2 networking.

Gateway-type ONT

Equipped with a built-in IAD, the ONT provides services to users. The gateway-type ONT can provide L3 services such as DHCP/ PPPoE dial- up, NAT, and IGMP snooping, facilitating device interconnection in a house.

 

Wi-Fi Coverage for Homes

ONTs with Wi-Fi capabilities can address the needs of most households for Wi-Fi services. However, for large houses or villas, a single ONT cannot provide indoor Wi-Fi coverage for the entire house.

Acronyms and Abbreviations

AP

access point

BNG

broadband network gateway

EPC

evolved packet core

EMS

element management system

FTTB

fiber to the building

FTTC

fiber to the curb

eOTDR

embedded optical time domain reflectometer

FAT

fiber access terminal

FDT

fiber distribution terminal

FTTH

fiber to the home

HGU

home gateway unit

IAD

integrated access device

ITMS 

intelligent terminal management system

LTE

long term evolution

OAM

operation, administration and maintenance

ODF

optical distribution frame

ODN

optical distribution network

OMCI

optical network terminal management and control interface

OTDR

optical time domain reflectometer

OSS

operations support system

OTT

over the top

PLC

power line communication

RAN

radio access network

SFU

single family unit

SNMP

simple network management protocol

TMS

terminal management system

WAN

wide area network



 


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