Leveraging Existing Building Cabling Infrastructure to Meet the Needs of FTTH/FTTP Rollout in MDUs - Mathew Cook, RCDD,OSP Stephen Cumminger ...
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Leveraging Existing Building Cabling
Infrastructure to Meet the Needs of
FTTH/FTTP Rollout in MDUs
Mathew Cook, RCDD,OSP
Stephen Cumminger, P.Eng, MBA
Bell Aliant’s Service Territory
Ontario • Third largest Telco in Canada
(regional)
• Operates in six provinces
Quebec
(regional) • Ontario & Quebec territory
shared with Bell Canada
YT
NT NU
• Population served: 5.3 million
• NAS : 2.9 million
NL
BC AB SK MB
ON
QC
NB
PEI • Employees: 8,000
NS
• Revenue : $3 billion
• High Speed Internet
Footprint: 80%
• High Speed Internet
Nova Scotia
New Brunswick Customers : 830K
Newfoundland • 2010 FTTH Footprint : 140K
Prince Edward Island
• 2011 FTTH Footprint : 460K
You are Here !
Agenda • Introduction – What are we going to talk about ? • Challenges we faced – What were we trying to accomplish – Why was this difficult ? • Techniques we used to overcome these challenges – By situation • Questions?
Introduction
• Bell Aliant’s FibreOP service requires fibers to be brought to each unit
of a multi-Tenant building.
• This fiber originates at one of our Central Offices and terminates at a
customer’s unit.
– 1x32 optical Splitters are in the optical path at the appropriate point
(within the MTU or in the local Fiber Serving Area)
• We use the generic term MTU – Multi Tenant Unit that includes both
Residential and Business customers; each with their own challenges.
• We allocate sufficient fibers in the FTTH footprint area to service a
building, but we don’t provision an MTU building immediately.
• There are separate processes used to determine when and if a
particular building is provisioned with fiber
– Cost and relationships with Building Owners is key
Fibre to the Home (FTTH) – Key Network Components
PON – Passive Optical Network
Central Office (CO)
Central Splitting
VoIP Point (CSP)
Tel PC
IPTV Fibre Feeder Distribution Fibre Drop TV
HSI Fibre
Optical Wavelengths ONT
Ethernet PON OLT 1490nm Optical Network
Switch 1310nm Terminal
ONT
Power
Supply
Central Office
PON OLT Central Splitting Distribution fibre Cable Plant Optical Network
(Optical Line Terminal)
Point (CSP) Terminal (ONT)
Fully connectorized fibre access network which
A compact pole enables quick installation of fibre drops to a
The OLT interfaces mounted box housing Small interior or exterior box
with our core IP optical splitters which customer’s home. with a separate power supply
network to deliver enables a single The distribution fibres are assembled per our mounted indoors (integrated
voice, data and TV feeder fibre to serve
services to our multiple customers specifications with all fibre breakouts spliced and battery for power back-up for
customers optically via tested in the factory approximately 8 hours)
the FTTH network
Challenges
• Greenfield. Few problems except:
– Finding the best way to deploy fiber using the
Electrical Contractor for the building.
• What part do they do, what part does another
contractor do.
• What contractual and financial agreements are
required.
– We don’t want a Greenfield Building to become
a Brownfield Building by accident or mis-
management.
Challenges
• Business aspect:
– Cost per unit passed is very important. Only the lowest cost projects
get funded.
– Bell Aliant has not requested funding assistance from Building Owners
yet.
• Building Access
– Some Building Owners have relationships with other competing
providers and are not motivated to accept fiber placed into their
building.
• Aesthetics
– What Building Owners consider acceptable with respect to:
• What technical solutions would look like when the work is done
• Disruption to tenants,
varies greatly among Building Owners.
This Building Owner had very specific requirements
Challenges
Brownfield Technical Challenges – Can we get fiber to every unit
in the building ?
• It is a rare occurrence to find that reusable pathways exist
from the building’s entrance all the way to the individual
units; with the last leg to the unit being the most
problematic.
– We always recommend them, but it is always something seen as a
luxury to the Building Owner; so it gets cut.
– Today we see Greenfields being built with only wall cavity support
for cables/wires; no pathway.
• For Brownfields, getting fiber to the unit from a place where
you can collect many of them (MTR, Satellite Closet…) is
THE technical challenge.
MDU Demographic Slide
• Stats about %Townhouses, MDUs,
Greenfield…
– Brownfield
• % Townhouses, MDU
– Greenfield
• 10% of BrownfieldOther Useful Stats for Bell Aliant
• FibreOp MDU program started 3rd quarter 2010
• Currently running projects in 8 cities through the 4 Atlantic
Provinces
• Total MDU units passed for 2011 was 7719
• This equated to approximately 180 MDU’s
• Average size of MDU in the Atlantic Provinces is 42 units
• The FibreOp MDU program includes builds in new buildings
and existing buildingsSome Learning's Common to all Challenges
• Products used need to be durable and easy to install
– Better to have more rugged fiber cabling with appropriate fire/smoke
ratings than need to place conduit to protect them.
• CSP’s need to be designed to allow multiple termination options
(one box, multiple termination options within)
– Best not to have specific products for splicing and terminating abilities
as the requirement could change during the build, or by floor.
• Utilize existing building infrastructure where possible
• Aesthetics and acceptance by the customer is essential
– Our fiber builds go just outside Brownfield Units. Need to get Building
Owner approval for inside wiring methods intended prior to
provisioning the building.
• Homerun design versus Riser Consolidation point design is a key
decision point to every build.Products Need to be Durable and Easy to Install
Early Thoughts TodayCSP’s need to be designed to allow multiple termination options
(one box, multiple termination options within)
Early Attempts Today
Can splice of field terminate
Can only splice distribution legs On connectors in this CSP
In this CSPUtilize existing building infrastructure where possible
• Example of using existing pathway containing copper based
infrastructure.Aesthetics and acceptance by the customer is
essentialAesthetics and acceptance by the customer is
essentialHomerun design versus Riser Consolidation point design
Early Attempts Today’s Preference
Dual Hallway Multi-Drop(6F) Runs – Each Wing
FDT
ONT
FDT
ONT
FDT
ONT
CSP
Feeder DistributionBrownfield Technical Challenges
• Running Fiber from the units to aggregation points is the most
difficult and expensive part of a build.
– We’ll show you some options that we have used that work in some
types of buildings
• We did find that some buildings had sufficient infrastructure
already to handle our FibreOP services.
– Where Cat5e or Cat6 cabling existed from the units to aggregation
points. (Assuming 90m maximum loop length)
– This cabling can handle up to 1000Mb/s data speed which is foreseen
to address our service needs for up to 5 years.
• Current speed offerings are 30-150Mb/s.
• If we need to come back in 5 years and place fiber, it is still more
economic than placing fiber now; if the existing infrastructure can be
leveraged.
– This is our Option #1 for BrownfieldsMTU Design using Existing Cat5e Wiring
(Rack-mounted Splitter)
FD101, 145-240
FNAP-96EW4
Feeder Fiber Patched
to each splitter shelf’s
Feeder Input connector on CAT 5e Patch Chord
Patch Panel Optical Patch Chord
CCS-1U
ONT/UPS Shelf
FSC-1N-32-Sa-B
To units
ONT
Cat5e
FSC-1N-32-Sa-B
Terminations
ONT installed as part of the Service Order
FSA 115a
Deploy sufficient Fiber Splitter Patch Panels for initial demand,
52 Parkland leaving space on equipment rack for ultimate number.MTU Design using Existing Cat5e Wiring
(Rack-mounted Splitter)
Shelves to Fiber Splitter
• Brownfield Option #1: house ONT’s
and UPS
– If each unit is equipped with 2
Cat5E back to a common
aggregation point which is
within 90m, use it.
Proven
– Consolidate ONT’s in MTR Cat5E to
where Cat5E are demarc’d Power Bar
Units
– RG will be placed in unit using
Fiber
existing Cat5E which has been Splitter
proved to 1 Gig.
Patch panel of
Cat5e pigtails back
Shelves to house
to Cat5E Demarc
ONT’s and UPS
drops to unitMTU Design using Existing Cat5e Wiring
(Rack-mounted Splitter)
Cat5E pigtails to rack Existing Cat5E to UnitsDesign Options from the CSP to the Unit
• If new pathways are required Hatch cut in
(Brownfield),
suspended gyproc
ceiling
• Option 2:
– If common hallways exist with
drop ceiling (t-bar or Gyproc
suspended below actual Fiber Point of Entry
box into unit
ceiling)
– Run single fiber drops in that
space from CSP to each fiber
designation point in each unit
All Fiber and Point of
Entry boxes are above T-
bar ceilingDesign Options from the CSP to the Unit
Duct from MTR to
• If new pathways are attic containing
individual Fibers
required (Brownfield),
• Option 3:
– If drop ceilings do not exist, but
access is possible into attic or
basement space and utility
rooms are stacked
– Access basement or attic and
run multiple single drops
through utility space in Fiber from the attic
pathway duct and drop off a space ran down
through the stacked
fiber to each unit along the electrical rooms
way
– Within units, wiring will be
demarked in utility rooms
– Works best in Rental units, not
in CondosDesign Options from the CSP to the Unit
• If new pathways are required
(Brownfield),
• Option 4:
– If options 1-3 are not possible
but you do have common
hallways, the 3M One-Pass
solution would be your option.
– 3M One-Pass can be run along
the hallway with a fiber
dropped off at each unit, best
location determined by MDU
design plans and demark
location within the unit.Design Options within the MDU unit
• Fiber placement
options are:
– Option 1: Fiber should
be placed where the in
unit cabling demarks Media Panel
within the unit.
Typically this is in the
utility room.Design Options within the MDU unit
• Fiber placement options are:
– Option 2: Fiber is to be placed
in the living room at the
television location (i.e. desktop
solution). This becomes the
unit’s new demark/aggregation
point.Questions and Open Discussion
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