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Key Decision Points for FTTP Implementation June 27, 2007 Thomas E. Bludau Mgr, FTTP Business Develo

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Title: Key Decision Points for FTTP Implementation June 27, 2007 Thomas E. Bludau Mgr, FTTP Business Develo


1
Key Decision Points for FTTP ImplementationJun
e 27, 2007Thomas E. BludauMgr, FTTP Business
Development3M Communication Markets Division
2
3M Communication Markets Division Key Decision
Points for FTTP Implementation Outline
  • Type of FTTP Network Architecture
  • FTTP Networks
  • P2P vs PON
  • FTTP Deployment Scenarios
  • Greenfield vs Overlay
  • FTTP Outside Plant Construction
  • Aerial vs Buried/Underground
  • PON Splitting Centralized vs Distributed
  • OSP Network Design
  • Distribution Cable Ribbon vs LBT
  • Connectors
  • Terminals
  • Drop Termination Method
  • Training

3
3M Communication Markets DivisionType of FTTP
Network Architecture Buildings That We Work In
Small Business Unit (SBU)
Multi-Tenant Unit (MTU)
Single Tenant Unit (STU)
4
3M Communication Markets DivisionType of Network
Architecture Buildings That We Live In
  • Medium-Rise Multi-Dwelling Unit (MDU)
  • Condo or Apartment
  • Leased or Owned
  • Up to 10 Floors/Stories
  • 12 to 128 Living Units (LU)
  • Internal residential entry
  • High-Rise Multi-Dwelling Unit (MDU)
  • Condo or Apartment
  • Leased or Owned
  • 10 Floors/Stories
  • 128 Living Units (LU)
  • Internal residential entry
  • Small Size Multi-Dwelling Unit (MDU)
  • Condo, Townhome, or Apartment
  • Also called Garden Style or Horizontal Style
  • Leased or Owned
  • Up to 3 Floors/Stories
  • Up to 12 Living Units (LU)
  • External residential entry
  • Single Family Unit (SFU)
  • Leased or Owned
  • 1 or 2 Floors/Stories
  • One Living Unit (LU)
  • External residential entry

5
3M Communication Markets Division Types of
Fiber Networks for Single Family Units
Fiber to the Premises (FTTP) PON - Centralized
Splitting
6
3M Communication Markets DivisionType of Fiber
Networks for MDU/MTU Fiber to the
Premises/Home/Living Unit
7
3M Communication Markets DivisionFTTP P2P vs PON
P2P Definition
  • Point-to-point - a network providing dedicated
    fiber from each subscriber to active electronic
    equipment located at a mid-point in the network
    ex. P2P switched Ethernet
  • IEEE 802 EFM Ethernet in the First Mile
  • Benefits higher BW, greater security
  • Central Office
  • Contains the ODF and OTE optical transmission
    equipment (DWDM, SONET/SDH)
  • Opto-Electronic Cabinet
  • Contains the Ethernet switch fiber interconnect
    panels fiber interconnect may be in a separate
    cabinet
  • Requires AC powering
  • Fiber Terminals
  • No Couplers/Splitters
  • Distribution fiber spliced or connected to drop
    fiber

Fiber Distribution Cable
Fiber Drop Cable
Fiber Feeder Cable
Fiber Count
2 - 10 per 1000 HHs
1 or 2 per HH
8
3M Communication Markets DivisionFTTP P2P vs
PON PON Definition
  • Passive Optical Network - network in which
    bandwidth traveling over fiber is shared among
    multiple users, via the use of splitters.
  • Ethernet (E), Broadband (B), Gigabit (G), Gigabit
    Ethernet (Ge)
  • Benefits no remote actives, easy to provide
    Triple Play, fewer ports needed
  • Central Office
  • Contains the OLT ODF
  • All switching is done in the CO
  • Fiber Distribution Hub (FDH)
  • Houses 1x32 or 1x16 couplers/splitters, typically
  • Feeder distribution fiber interconnection point
  • Fiber Terminal
  • No Couplers/Splitters, serves a consolidation
    function for 4-8 HHs
  • Distribution fiber dedicated from the Fiber
    Distribution Hub to CPE
  • Distribution fiber connected to drop

Fiber Distribution Cable
Fiber Drop Cable
Fiber Feeder Cable
Fiber Count
1 per 32 HHs
1 per HH
9
3M Communication Markets DivisionFTTP PON
Standards
Source Tellabs
10
3M Communication Markets DivisionFTTP Full Build
vs Overlay Architectures
  • Full Build in Greenfield Areas
  • Built to serve all homes businesses
  • Commonly used for greenfield applications
  • Overlay
  • For settled neighborhoods for broadband service
    demand and plant upgrade (relief rehab)
  • Deployed alongside existing copper twisted-pair
    plant
  • Network Characteristics
  • Feeder distribution plant passes all households
  • Electronics added as customers transition
  • Fiber Distribution Hub (similar to a copper
    cross-connect) provides interconnection between
    feeder distribution
  • Defers capital, costs are subscriber penetration
    driven
  • Rate of transition driven by demand for broadband
    services and repair costs associated with
    existing plant

11
3M Communication Markets DivisionEstimated US
FTTP Costs per Household (HH)
OSP Costs per Household (HH) Passed
Connect Costs per HH
OLT CO Costs per HH
2005 - 1,100 2006 - 850
2005 - 250 2006 - 200
2005 - 1,200 2006 - 900
12
3M Communication Markets DivisionFTTP OSP Plant
Network Construction Buried/UG Plant
  • Direct buried in greenfield, most economical
  • Rear lot line vs front lot line construction
  • Overlay builds disruptive to established
    neighborhoods, directional boring used to reduce
    disruption
  • Below-Grade Example
  • Issues impact on existing plant and other
    utilities, plant locating for all dielectric
    cable, installation costs, ROW easements

13
3M Communication Markets DivisionFTTP OSP Plant
Network Construction Aerial Plant
  • Ideal for overlay builds
  • Less expensive on a first-cost basis
  • Options
  • Overlashing to existing plant
  • New pole line construction
  • New construction on joint use poles
  • Issues pole line attachment fees, vertical space
    limitations, higher maintenance costs, Mother
    Nature

14
3M Communication Markets DivisionFTTP PON OSP
Plant Network ArchitectureCentralized Splitting
15
3M Communication Markets DivisionFTTP PON OSP
Plant Network ArchitectureDistributed Splitting
16
3M Communication Markets DivisionFTTP-PON
Splitting Centralized vs Distributed
  • Centralized Benefits
  • Easier to test and troubleshoot
  • Defers investment in OLT electronics and
    splitters until needed
  • Centralized access point for maintenance
  • Lower signal loss
  • Assures higher splitter and OLT electronics
    utilization
  • Distributed Benefits
  • Lower distribution cable fiber count
  • Less fiber needed in the distribution plant

17
3M Communication Markets DivisionFTTP-PON OSP
Plant Network DesignBelow-Grade Branch Closure
w/ Terminal
  • One Closure per 2 4 terminals
  • Terminals with pre-terminated stubs
  • One terminal per 4 HHs
  • Hermetically-Sealed terminals closures

18
3M Communication Markets Division FTTP-PON OSP
Plant Network Design Aerial Strand-Mount,
Loop-Through
  • Integrated terminal closure utilized
  • Free-Breathing
  • Requires expressing at each terminal location
  • Design also used for above- below-grade
    buried/UG plant

19
3M Communication Markets DivisionFTTP
Distribution Cable Plant Design
  • Ribbon Fiber Cable vs Single Fiber LBT Cable
  • Splitting tubes vs splitting ribbons
  • Ribbons now available in 4, 6, 8, 12 fiber
    ribbons, eliminates splitting ribbons Advantage
    Ribbon
  • Cleaving and Splicing
  • One fiber at a time vs 4, 6, 8, or 12 at a time
    Advantage Ribbon
  • Expressing ribbons vs LBTs
  • Ribbons require less real estate in closures
    terminals Advantage Ribbon
  • Terminal Drop Connectivity Solution
  • Fusion spliced drop Advantage LBT
  • Fusion spliced pigtail Advantage Ribbon
  • Sparing strategy Advantage LBT

20
3M Communication Markets DivisionConnector Type
and Quantity FTTP PON Network
  • Number of Connector Pairs
  • Central Office (CO) OLT EDFA (1), WDM (2), ODF
    (2)
  • Outside Plant (OSP) FDH (1 or 2) depends if
    splitter input is spliced or connectorized, Fiber
    Terminal (1 or 2 ) depends on drop connectivity
    method and use of splitters at terminals
  • Premises ONT (1)
  • Type of Connector
  • SC, LC
  • APC vs UPC
  • deciding factor is analog CATV signals
  • Applicable standards (Telcordia GR-326-CORE
    TIA/EIA-568-B.3) specify connections lower than
    55dB

21
3M Communication Markets DivisionOutside Plant
FTTP - Fiber Access Terminals
  • a point in the network where the distribution
    cable fibers are connected or spliced to the drop
    cables. Drop cables are eventually connected to
    the ONT or ONU located at the customer premises.
    Also known as a FDT (fiber distribution
    terminal).
  • functions as either a connectorization or splice
    point for the drop cables as well as
    consolidation point for couplers/splitters used
    with the Distributed Splitting architecture.
  • typically serves 4, 6, 8, 12, or 24 HHs
    (households)
  • Types of FATs
  • Terminal Closure used for applications that
    requires the splicing or field connectorization
    of the distribution fibers to the drop fibers.
    Typically equipped with a splice tray and allow
    for the expressing distribution fibers.
  • Factory Stubbed Terminal equipped with a factory
    installed cable that has connectors on one end or
    both ends. The pigtail configuration requires
    that the fibers be spliced to the distribution
    fiber in a splice closure.

22
3M Communication Markets Division Items to
Consider Regarding Outside Plant Terminals
Applications
  • Placement Location and Type of Plant (aerial,
    buried, underground)
  • strand mount and pole mount for aerial
    applications
  • pedestal and flush-to-grade (handhole) for
    buried/underground applications
  • wall mount for both aerial and buried
    applications
  • Environmental Protection
  • Sealed required for below-grade applications,
    also used for aerial applications or above-grade
    buried applications
  • Breathable (Free Breathing) used in aerial or
    pedestal applications
  • Craft Separation/Security separate lockable
    splice terminal areas
  • Separate enclosure for splicing and separate
    enclosure for terminations
  • One enclosure, splicing and termination
    functionality located in different areas in the
    same compartment
  • One enclosure, separate compartment for splicing
    and terminations
  • Number of Drop Terminations
  • 4, 6, 8, 12, or 24 ports
  • Type of Connectors SC/UPC, SC/APC, LC
  • Type of Drop Cable Termination
  • External
  • Hardened Factory-terminated Connectivity
    Interface
  • Internal
  • Non-hardened Factory-terminated Connectivity
    Interface

23
3M Communication Markets Division Outside Plant
FTTP Drop Termination Key Considerations
  • Type of Drop Cable
  • Application
  • Aerial, Direct Buried, Underground in Conduit
  • of fibers 1 or 2
  • Armored vs Dielectric Tonable vs Non-Tonable
  • Corning, Sumitomo, OFS, Draka, Superior, General,
    CommScope, Pirelli
  • Type of Drop Cable Termination at the Terminal
  • Internal Drop Cable Termination
  • External Drop Cable Termination
  • Location of the ONT/ONU

Corning
Corning
Corning
24
3M Communication Markets Division Outside Plant
FTTP Drop Termination Options at the Terminal
  • Internal Drop Cable Termination
  • Can be defined as a drop termination method that
    requires that the technician to enter into the
    terminal or terminal closure to terminate or
    connect the drop cable
  • Most Common types are
  • Pigtail Spliced
  • Mechanical or Fusion
  • Direct Spliced
  • Fusion or Mechanical
  • Field Connectorized
  • Factory-Terminated
  • A combination of the methods listed may be used
  • Factory-Terminated at Terminal and Pigtail
    Spliced at ONT
  • Direct Spliced at Terminal and Factory-Terminated
    at ONT
  • External Drop Cable Termination
  • Can be defined as a drop termination method that
    does not require the technician to enter the
    terminal to terminate or connect the drop cable.
  • Most common type is the Hardened Fiber Optic
    Connecter (HFOC)
  • Corning OptiTap, ADC/FONS RC Adapter, AFOP Scout,
    Tyco FT

25
3M Communication Markets Division FTTP Drop
Termination Options for External ONT Fusion
Spliced
  • Drop fiber fusion spliced to the distribution
    fiber at the terminal and drop fusion spliced to
    drop fiber at ONT
  • No test access point at terminal
  • Total Insertion loss
  • Splice loss at terminal Connector Loss
  • (2 x 0.01dB) (1 x 0.5dB) 0.52dB
  • Requires higher craft skill level labor rate
  • High equipment costs related maintenance costs
  • Ability to test splice
  • Time to install the drop is the higher than
    mechanical spliced factory-terminated drop
    options due to setup time and time to fusion
    splice at the terminal and ONT
  • Aerial time to setup fusion splicing equipment
    and splice on the strand
  • Buried/Underground time to setup splicing
    equipment and bring the terminal to the splice
    work area.
  • Reel/box of drop cable does not require various
    different lengths of drop cables to be taken into
    inventory or to the job site

26
3M Communication Markets Division FTTP Drop
Termination Options for External ONT Fusion
Spliced
  • Factory-terminated drop fiber fusion spliced to
    the distribution fiber at the terminal
  • No test access point at terminal
  • Total Insertion loss
  • Splice loss at terminal Connector Loss
  • (1 x 0.01dB) (1 x 0.5dB) 0.51dB
  • Requires higher craft skill level labor rate
  • High equipment costs related maintenance costs
  • Ability to test splice
  • Fusion splicing at the terminal requires more
    setup time compared to all other mechanical
    spliced factory-terminated drop termination
    methods and fusion splicing at the ONT.
  • Aerial time to setup fusion splicing equipment
    and splice on the strand
  • Buried/Underground time to setup the splicing
    equipment and bring the terminal to the splice
    work area.
  • Various lengths of drop cables with one connector
    on one end must be kept in inventory and taken to
    the service installation site

27
3M Communication Markets Division FTTP Drop
Termination Options for External ONT Fusion
Spliced
  • Factory-terminated drop fiber fusion spliced to
    the drop fiber at the ONT
  • Test access point at terminal
  • Total Insertion loss
  • Splice loss at terminal Connector Loss
  • (1 x 0.01dB) (2 x 0.5dB) 1.01dB
  • Requires higher craft skill level labor rate
  • High equipment costs related maintenance costs
  • Ability to test splice
  • Fusion splicing at the ONT requires less setup
    time compared to fusion splicing at the terminal.
    Requires more setup time and time to install
    than all other mechanical spliced
    factory-terminated drop termination methods.
  • Aerial time to setup fusion splicing equipment
    and splice at the ONT
  • Buried/Underground time to setup the splicing
    equipment and splice at the ONT
  • Various lengths of drop cables with one connector
    on one end must be kept in inventory and taken to
    the service installation site

28
3M Communication Markets Division FTTP Drop
Termination Options for External ONT Fusion
Spliced
  • Distribution fiber fusion spliced to pigtail
    drop fiber fusion spliced to a pigtail at the
    terminal drop fiber fusion spliced to pigtail
    at ONT
  • Test access point at terminal
  • Total Insertion loss
  • Splice loss at terminal Connector Loss
  • (3 x 0.01dB) (2 x 0.5dB) 1.03dB
  • Requires higher craft skill level labor rate
  • High equipment costs related maintenance costs
  • Ability to test splice
  • Time to install the drop is the highest of all
    drop options due to the setup time and the time
    to splice at the terminal and ONT
  • Reel/box of drop cable does not require various
    different lengths of drop cables to be taken into
    inventory or to the job site

29
3M Communication Markets Division FTTP Drop
Termination Options for External ONT Mechanical
Spliced
  • Drop fiber mechanical spliced to the distribution
    fiber at the terminal and drop mechanical spliced
    to drop fiber at ONT
  • No test access point at terminal
  • Total Insertion loss
  • Splice loss at terminal Connector Loss
  • (2 x 0.1dB) (1 x 0.5dB) 0.7dB
  • Relatively low skill level required
  • Low equipment costs related maintenance costs
  • No ability to test splice
  • Time to install the drop is the higher than
    factory-terminated drop options due to the setup
    time and the time to splice at the terminal and
    ONT
  • Aerial time to setup and splice on the strand
  • Buried/Underground time to setup and bring the
    terminal to the splice work area.
  • Reel/box of drop cable does not require various
    different lengths of drop cables to be taken into
    inventory or to the job site

30
3M Communication Markets Division FTTP Drop
Termination Options for External ONT Mechanical
Spliced
  • Factory-terminated drop fiber mechanical spliced
    to the distribution fiber at the terminal
  • No test access point at terminal
  • Total Insertion loss
  • Splice loss at terminal Connector Loss
  • (1 x 0.1dB) (1 x 0.5dB) 0.6dB
  • Relatively low Craft skill level required, thus
    resulting in lower labor rate
  • Low equipment costs related maintenance costs
  • No ability to test splice
  • Mechanical splicing at the terminal requires more
    time than installing a factory-terminated drop.
  • Aerial time to setup and splice on the strand
  • Buried/Underground time to setup and bring the
    terminal to the splice work area.
  • Various lengths of drop cables with one connector
    on one end must be kept in inventory and taken to
    the service installation site

31
3M Communication Markets Division FTTP Drop
Termination Options for External ONT Mechanical
Spliced
  • Factory-terminated drop fiber mechanical spliced
    to the drop fiber at the ONT
  • Test access point at terminal
  • Total Insertion loss
  • Splice loss at terminal Connector Loss
  • (2 x 0.1dB) (2 x 0.5dB) 1.2dB
  • Relatively low craft skill level required, thus
    resulting in lower labor rate
  • Low equipment costs related maintenance costs
  • No ability to test splice
  • Mechanical splicing at the ONT requires less time
    than splicing the drop at the terminal and more
    time than installing a factory-terminated drop.
  • Aerial time to setup and splice at the ONT
  • Buried/Underground time to setup at the ONT
  • Various lengths of drop cables with one connector
    on one end must be kept in inventory and taken to
    the service installation site

32
3M Communication Markets Division FTTP Drop
Termination Options for External ONT Mechanical
Spliced
  • Distribution fiber mechanical spliced to pigtail
    drop fiber mechanical spliced to a pigtail at
    the terminal drop fiber mechanical spliced to
    pigtail at ONT
  • Test access point at terminal
  • Total Insertion loss
  • Splice loss at terminal Connector Loss
  • (3 x 0.1dB) (2 x 0.5dB) 1.3dB
  • Low craft skill level labor rate required
  • Low equipment costs related maintenance costs
  • No ability to test splice
  • Time to install the drop is the highest of all
    mechanical drop options due to the setup time and
    the time to splice at the terminal and ONT.
    However, this options requires less installation
    time as compared to the fusion splicing option.
  • Reel/box of drop cable does not require various
    different lengths of drop cables to be taken into
    inventory or to the job site

33
3M 3M Communication Markets DivisionFTTP Drop
Termination Options for External ONT Factory
TerminatedHardened Fiber Optic Connector (HFOC)
Free-Breathing, Strand Mount Terminal Closure
3M SLiC 530
Drop Slack Storage Box Corning
Factory Terminated Ruggedized Drop
Cable/Termination Corning HFOC
34
3M 3M Communication Markets DivisionFTTP Drop
Termination Options for External ONT Factory
TerminatedNon-Hardened ECAM Drop

Fiber Dome Stubbed Terminal FDST 08


ECAM-FD Factory Terminated Drop
SLIC 530 Terminal Closure with ECAM-FD Drop
35
3M 3M Communication Markets DivisionFTTP Drop
Termination Options for External ONT Factory
Terminated Hardened and Non-Hardened Drop
  • Factory-terminated drop terminated at the
    terminal and ONT
  • Test access point at terminal and ONT
  • Total Insertion loss
  • Splice loss at terminal Connector Loss
  • (0 x 0.0dB) (2 x 0.5dB) 1.0dB
  • Low craft skill level required, thus resulting in
    lower labor rate
  • No equipment costs related maintenance costs
  • Slack storage box and time to coil the extra
    slack required at the ONT and Terminal
  • Factory-terminated drops require the least amount
    of time to install versus all other drop
    termination methods.
  • Various lengths of drop cables with one connector
    on each end must be kept in inventory and taken
    to the service installation site
  • Higher cable costs than any other option, due to
    the need to storage access slack.

36
3M Communication Markets Division FTTP Drop
Termination Options for Internal ONT Fusion
Spliced
37
3M Communication Markets Division FTTP Drop
Termination Options for Internal ONT Mechanical
Spliced
38
3M Communication Markets DivisionKey Decision
Points for FTTP Implementation Key Areas of
Training
  • Handling of fiber plant
  • Minimum Bend Radius
  • fiber, cable, buffer tubes
  • Connectors
  • Cleanliness
  • Safety
  • Laser
  • Small pieces of glass (fiber)

39
3M Communication Markets DivisionFTTP
Deployment Understanding Bend Radius
  • also known as the minimum bend radius
  • defined as the radius smallest or minimum radius
    a fiber strand, buffer tube, or fiber optic cable
    can be bent.
  • varies among manufacturers, with each
    manufacturer typically specifying the minimum
    bend radius to be used during the installation
    process and the life of the cable (long term).
  • exceeding the minimum bend radius may cause
    attenuation (macrobends) and fiber breakage
  • Macrobend losses can occur in splice organizer
    trays, closures, distribution units, and cable
    plant.
  • current US required bend radius for 250um and
    900um fiber is 1.5 (38mm)

40
3M Communication Markets Division Key Decision
Points for FTTP Implementation Summary
  • Type of FTTP Network Architecture
  • FTTP Networks
  • P2P vs PON
  • FTTP Deployment Scenarios
  • Greenfield vs Overlay
  • FTTP Outside Plant Construction
  • Aerial vs Buried/Underground
  • PON Splitting Centralized vs Distributed
  • OSP Network Design
  • Distribution Cable Ribbon vs LBT
  • Connectors
  • Terminals
  • Drop Termination Method
  • Training

41
3M Communication Markets Division Key Decision
Points for FTTP Implementation Summary
  • Thank You for Your Time!
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