Commsday 2013: How to Efficiently Transition to an All-Fibre Future
Robert CongerDirector, Product Management
October 9, 2013
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Key Trends in Fixed Broadband Access
Cloud Connectivity
Residential Broadband
Data Center Connectivity
Mobile Services Expansion
Increased investment and competition
Multiple services over a common network:- Residential broadband- Cloud connectivity- Mobile backhaul
GPON and Vectored VDSL2 leading the way in telco markets
Success-based approach to incremental fibre investment
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Typical Wireline Access Network
Pillar
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Incremental Fibre Investment
~$350-$450 Per subscriber
$1,000-$2,500Per subscriber
$600-$1,250 Per subscriber
Aerial or Underground
Distribution Cable
Drop Cable
Copper
FTTDP Architecture (200-500+Mbps service)
Fibre
Distribution PointFTTCab Architecture (50-100Mbps service)
Fiber Aggregator
Aerial or Underground
Distribution Cable
Drop Cable
Feeder Fiber
CopperFibre
Cross-Connect Cabinet
$ $$ $$$
High Cost Area (last 1km)Common Network
Architecture+ $250-800 + $600-1,250
Drop Cable
FTTP Architecture (1Gbps service)
Fibre
• General industry trend is towards a success-based fibre build• Build networks on a common FTTx architecture and then make decision
on how far to invest with fiber vs. copper based on range of factors (competitive environment, service offering, deployment costs, etc.)
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FTTx Deployment CostsUnderstanding Cost Variations for FTTP
Cross-box / Pillar
Key Factors Driving FTTx Costs:
– Greenfield vs. Brownfield– Aerial vs. Underground
Utilities– Construction Costs– Subscriber Density– Wiring environments:
SFUs vs. MDUs– Customer Sign-up Rates
Range of factors influence how far to
pull fibre into the network
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GPON and VDSL2 Market Analysis
Strong growth in VDSL2 expected over next 5 years
GPON market still very targeted
GPON Revenue by Region: Q4 ‘12
Projected VDSL2 Growth by Region
Source: Infonetics Q4 2012 Broadband Aggregation Report
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100 Mbps @ 550m with vectoring
Vectoring Gain
Vectoring eliminates Far End CrossTalk (FEXT) and allows service providers to deploy 100 Mbps out to >1 km over two pairs of copper
VDSL2 with VectoringMass-Market 100 Mbps Service Delivery
VDSL2 w/ Vectoring:– Latest generation copper
access technology for FTTN architectures
– Mass deployable technology in 2013
– Delivers 100Mbps out to >1km with 2pr bonding
– Enables cost-effective and widespread delivery of 100M services
– Small form-factor DSLAMs optimized around vectoring coming to market
~75% of customers within 500m of node, 90+% within 1km
Note: Average ETSI market statistics
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Historical FTTN Deployment Model: Large adjunct cabinets next to existing
cross-connect
Current FTTN Model: Small footprint electronics that minimize throw-away
construction costs
1m
Changing the FTTN Deployment ModelMinimizing Footprint and Constructions Costs
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Optimizing FTTDP DeploymentsAbove or Below-Ground w/ Remote Powering
Solutions must be optimized for below-ground pits, curbside pedestals, or aerial drop
Vectored VDSL2 today and G.Fast in the future
Network powering and reverse powering to avoid local powering requirements
FTTDP solutions optimized for low-denstiy-environments
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Deep fibre is making loops shorter….
And shorter…
CO/Exchange
Remote Terminal orStreet Cabinet
Small Form-factorsealed DSLAMs
Distribution Pointunder Footpath
Incremental FTTx Requirement: Solutions Optimized for Each Deployment Model
Incremental FTTx StrategySolutions Optimized for Each Part of the Network
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GPON/NGPON
GigE
FTTH Deployment
Business Services
Metro Network
N x 10Gig lEthernet or OTN
GE/10GE or l
ServicesEthernet and Wavelength
Services
Small Cell Gateway
Bonded VDSL2
Solutions Optimized for Multi-Service Delivery:– Platforms built with a range of vectored VDSL2, GPON, GE, 10GE, and
wavelength service delivery options– Full network automation with zero touch provisioning– Integrated service assurance and optional redundancy for business and
wholesale service delivery– Elimination of multi-box solutions to deliver a mix of residential,
enterprise and backhaul services
Multi-Service SupportSolutions Must Support Full Range of Services
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Summary
ExchangeRemote Node
Incremental Transition to FTTP
VDSL2
GPON
How to Efficiently Transition to an All-Fibre Future:
– Minimize throw-away construction costs and footprint associated with FTTN and FTTDP electronics
– Avoid “one size fits all” approach: utilize a range of solutions optimized for different deployment densities and locations
– Avoid multi-box solutions to support a range of enterprise, residential, and backhaul services
– Build out the network in a manner that is progressing towards long-term FTTP target architecture: incremental fibre investment, GPON-fed FTTDP ONUs, etc.
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