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Innovative Ways To Make Cost Effective LANs for K12 Schools

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Optical fiber eliminates intermediate closets, thus simplifying network layout ... Decrease the number of wiring closets. Cover long run distances to classrooms ... – PowerPoint PPT presentation

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Title: Innovative Ways To Make Cost Effective LANs for K12 Schools


1
Innovative Ways To Make Cost Effective LANs for
K-12 Schools
  • Mike Lynch
  • Telecommunications Industry Association
  • Fiber Optics LAN Section

2
TIA Fiber Optics LAN SectionBackground and
Mission
  • Formed in 1993 as part of TIAs Fiber Optics
    Division
  • Members include ADC, Berk-Tek, CommScope,
    Corning, Fluke Networks, Leviton Voice Data,
    OFS, Optek Technology, Ortronics, Panduit,
    Sumitomo Electric Lightwave, Transmission
    Networks, Tyco/AMP Electronics
  • Mission To create a resource where people can
    learn about the technical advantages and
    affordability that optical transmission brings to
    customer-owned networks

3
Expanded FocusResult of Target Audience
Member Input
  • Fiber-based LANs
  • Storage area networks
  • Data centers
  • Market-specific applications
  • Industrial
  • Education
  • Government

4
TIA Fiber Optics LAN SectionMany Resources
Available
  • Web site
  • Trade press articles
  • White papers
  • Press releases
  • Editor briefings
  • Stimulate complementary standards development
  • Interoperability demonstrations
  • Presentations at industry conferences
  • Enterprise fiber case histories
  • Equipment directories
  • Web conferences
  • www.fols.org

5
Innovative Ways To Make Cost Effective LANs for
K-12 Schools
  • Mike Lynch
  • Telecommunications Industry Association
  • Fiber Optics LAN Section

6
Outline Agenda
  • FOLS Background
  • The New Fiber - Characteristics
  • Basic Network Designs
  • Applying designs to K-12 Schools
  • Examples of net designs Labs, Classrooms,
    Administration
  • Applying Products to Designs
  • FOLS Cost model
  • Review of Assumptions
  • Review model format
  • Interactive cost modeling
  • Summary - Next Steps

7
Fiber Misconceptions Not Your Fathers Fiber
Weight
Size
  • Perception Copper weighs less than fiber
  • Fact Fiber components are heavier, but fiber
    cable is lighter
  • Perception Copper cable is smaller than fiber
    cable
  • Fact Fiber is 15 smaller

Rating
Strength
  • Perception Copper is more fire-resistant
  • Fact Fiber is plenum-rated, compatible with
    infrastructure
  • Perception Fiber is fragile
  • Fact Fiber is 4 times stronger than copper

8
Fibers New Characteristics
9
Fibers New Characteristics
10
Fibers New Characteristics
11
Fibers New Characteristics
12
Fibers New Characteristics
13
Fibers New Characteristics
14
Fibers New Characteristics
15
Fibers New Characteristics
16
A Multi-design K-12 Network
17
A Distributed NetworkCopper and Fiber
In a conventional distributed structured cabling
design, the backbone cable is optical fiber. The
horizontal segment of the network typically
consists of twisted-pair copper cable or optical
fiber cable (depending on distance). Backbone
cables in an inter-building network travel from a
main cross-connect (distributor) to one or more
horizontal cross-connects within a
telecommunication room, which includes active
electronics equipment such as hubs, concentrators
or switches. These would easily support a school
administration network.
18
A Centralized NetworkAll Fiber
Optical fibers bandwidth and ability to carry
data over long distances is best utilized in
centralized networks. Centralized networks
have more unblocked bandwidth than distributed
networks and therefore are better suited to
support combined voice, video and data traffic
requiring quality of service implementation.
Optical fiber eliminates intermediate closets,
thus simplifying network layout and reducing
overall system cost. Classrooms are a good
example of one of the places a centralized
network could be implemented.
19
Zone Cabling Architecture
Moves, adds or changes in an open-office
environment can be accommodated quickly and
efficiently through consolidation points by
combining permanent feeder cabling with
pre-terminated plug-and-play extender cables
associated with the work area. Zone cabling is
a relatively new term for a concept being used in
many schools today. One good example of where it
could be used is in a computer lab.
20
Standard Architectures Drive Lower Costs
  • TIA-568 - in 1991
  • Centralized Cabling
  • Consolidation Points
  • Telecommunications Enclosures
  • Commonly know with zone cabling

21
Zone, Tiny TR, Telecom Enclosure Update
  • TR42.3 has drafted Telecom Enclosure (official
    name)
  • Has finished final default ballot.
  • Will be part of the ANSI/TIA-569-B Standard
  • TR42.1 has drafted a TE cabling implementation
    document
  • Final default ballot complete -
  • Will become an addendum for TIA 568-B.1
  • Ballot Resolution Completed in February.
  • Final document integration this Summer.

22
Traditional Design
Optical Fiber Backbone
HC in the TR
LEGEND
Fiber Backbone Cable Horizontal Cable
Telecommunications Outlet/Connector
Building Pathways and Spaces Horizontal
Cross-Connect Telecommunications Room
HC
TR
Offices
Cubicles
23
Zone Cabling with a Telecomm Enclosure
Optical Fiber Backbone
HC in the TR
LEGEND
Fiber Backbone Cable Horizontal Cable
Telecommunications Outlet/Connector Teleco
mm Enclosure with a switch Building Pathways
and Spaces Horizontal Cross-Connect
Telecommunications Room
HC
TR
Offices
Cubicles
24
Schools Secret Weapon
  • Small inexpensive switch in every class
  • Managed or un-managed
  • Covered or accessible
  • Really used as a media converter

25
Details Of A Multi-design K-12 Network
26
Transition points vs. consolidation points Used
in Computer Labs
Zone Cabling
27
Zone Distribution Labs or Classrooms
Mini-Switch Copper Cable
Patch Panels Patch Cords Connectors
Fiber Cable
28
For Classrooms
Centralized or Zone Designs
29
Distributed Network
For Admin
30
Details Of A Zone K-12 Network
31
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32
Testimonials on FOLS.org
  • Education (K-12)
  • Guilford County School System, Greensboro, N.C.
  • Richardson Independent School District,
    Richardson, TX
  • Metropolitan Nashville Public Schools,
    Nashville, TN
  • Fowlerville Junior High School, Fowlerville,
    Michigan
  • Mother Teresa Catholic Secondary School, Ontario
  • New York Public School 199, New York, New York

33
How Much Savings Can Design Changes Create?FOLS
Proprietary Cost Model developed by FOLS and
Pearson Technologies
34
Cost Model Background History
  • Aug 2000 Tolly Group white paper Migrating to
    Fiber The Case for Centralized Cabling
  • Paper need more robust interactive backup model
  • 2001 First version of Fiber Optic LAN Section
    (FOLS) cost model
  • Focused on SFF connectors, and media converters
  • Implemented conclusions of Tolly study with real
    world scenarios.
  • April/May 2003 Version 2 of cost model
    developed
  • Updated new lower cost fiber and copper switches
    and other products
  • Doubled the number of scenarios
  • Added very low cost and Zone configurations
  • Jan 2004 - Simplified Data Entry Developed

35
Distributed vs. Centralized vs. Zone
  • Distributed
  • Accommodates the 100-meter limit of UTP copper
    cable.
  • Necessitates media conversion in the
    telecommunications room.
  • Typically, consists of high-speed uplinks
  • Centralized
  • Not bound by coppers 100-meter limitation, nor
    do they require media conversion from one
    physical medium to the other.
  • Zone
  • Combines the best of Centralized and Distributed
  • Small telecommunications enclosures
  • Use fiber for distance and bandwidth
  • Copper for short distance final connections

36
Cost Model AssumptionsTIA FOLS Fiber-Copper Cost
Models
  • Hierarchical star UTP vs. centralized fiber
  • Building model
  • 8 story, 48 ports/floor
  • Costs calculated on per port basis
  • Port utilization
  • Copper 70
  • Fiber 90
  • Fiber used in riser subsystem (both models)
  • Horizontal subsystem
  • UTP Cat 5e or Cat6 UTP (depending on model)
  • Fiber 62.5 or 50 µm multimode fiber
  • Telecommunications room
  • Copper TR 20,000
  • Fiber TR 4,500

37
Cost Model Assumptions
  • Twenty-one page document details all parts of
    the model
  • Updated as the cost model modifications are
    made.

38
Cost Model Assumptions (cont.)
39
Cost Model Assumptions (cont.)
40
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41
Cost Model Interactive
Cost model available at www.fols.org
42
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52
SummaryHow Fiber Can Save Money In K-12 Schools
  • Use Zone architecture concepts
  • Decrease the number of wiring closets
  • Cover long run distances to classrooms over 100m
    away
  • Enable network managers to use inexpensive
    switches as media converters
  • Easier to manage
  • High bandwidth applications or for use supporting
    PC labs.

53
Thank You
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