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FTTH Solution

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FTTH Solution Overview

Providing an Ultra-Broadband, Intelligent, and Fully Connected Experience for Home Users With the emergence of new services such as 4K/8K video, augmented reality (AR), virtual reality (VR), and smart home, home access is facing new challenges as bandwidth requirements are increasing tenfold and even hundredfold, while user connections are also experiencing exponential growth.

Solution and Networking

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
EPC	evolved packet core
FTTB	fiber to the building
eOTDR	embedded optical time domain reflectometer
FDT	fiber distribution terminal
HGU	home gateway unit
ITMS	intelligent terminal management system
OAM	operation, administration and maintenance
ODN	optical distribution network
OTDR	optical time domain reflectometer
OTT	over the top
RAN	radio access network
SNMP	simple network management protocol
WAN	wide area network
BNG	broadband network gateway
EMS	element management system
FTTC	fiber to the curb
FAT	fiber access terminal
FTTH	fiber to the home
IAD	integrated access device
LTE	long term evolution
ODF	optical distribution frame
OMCI	optical network terminal management and control interface
OSS	operations support system
PLC	power line communication
SFU	single family unit
TMS	terminal management system