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Optical LAN Solutions Passive Optical Network Applied to the Modern Enterprise
Luca Rozzoni RCDD
POL Program & Business Development Manager EMEA
TE Connectivity EMEA
© 2011 Tyco Electronics Corp., a TE Connectivity LTD Company. All Rights Reserved.
ADC, ADC logo, Rapid Reel, RealFlex, TE Connectivity, TE Connectivity logo,
TFP, TRUENET, and Tyco Electronics are trademarks. Other products, logos, and
company names herein may be trademarks of their respective owners.
Fiber to the Office
Key Terms
• PON - Passive Optical Network - (Carrier) Between Central Office (CO), or substation, and the premises in FTTx.
Campus MDF
• POL - Passive Optical Local Area Network
- (Enterprise) Between the data center / equipment room and the user*.
PON / POL are a point-to-multipoint network architecture in which unpowered
optical splitters are used to enable a single optical fiber to serve multiple
premises / users
GPON (Gigabit PON) is an evolution of the BPON
standard - based on the ITU standard (ITU-G.984)
Asymmetrical bandwidth 2.4Gbs / 1.25Gbs
Fundamentally GPON is the common demoninator for PON and POL
Overarching technology
A thought to begin with…
“If you always do what you
always did, you will always
get what you always got.”
Keeping pace with the many changes in IT
Change has been to main driver for most enterprises in the last decade
Bandwidth requirements have increased by order of magnitude
Numbers and type of devices connected has also jumped dramatically
Traffic patterns have shifted to more centralised and cloud based
Ironically It’s all happened in an economic environment
that gives IT much less to spend.
And yet costly work groups switch based architecture are built the same way
Main Factors for Change
• Rethinking of the physical infrastructure / abandoning old assumptions
• Re-evaluation of the way the LAN architecture is deployed
• Re-consideration of processes and vendors
• Alignment of IT to the business agenda
Gradually an increasing number of enterprises are abandoning some of
the assumption they used to make and start looking at alternatives
IT architectures are changing and therefore the network architecture has to adapt with it.
Evolution of network technologies…departmental and distributed services vs. to centralised
resources into the Data Center or even into the cloud
Emerging trend where intelligence and functionality features are centralised back to a single
location or aggregation
Think of Wireless LAN…. Where a relative number of non-intelligent access points feed-up
into centralised controllers that provide all the intelligence and functionality for the whole wireless
LAN
Now think of GPON as the other disruptive technology where again we are using passive
technology down to the desktop and then centralise a lot of the intelligence at the aggregation
or core layer within that architecture.
Game changer & Disruptive Technology
Taking unnecessary intelligence and functionality away from the edge
in order to create a more efficient architecture
POL Market Drivers
• Functionality
– Understand business requirements
– Rethink and revaluate old assumptions
• Financial
– Reconsider procurement
– What business problem does it solve?
• Operational
– Improve efficiency / increase security / reduce OPEX
GPON Evolution
The success of the OSP system has created an opportunity to bring
the same system design into the enterprise LAN
POL Facts and Benefits
• No power required from the data center to the user area
• Multiple buildings served by one main equipment room
• Up to 50% reduction in power consumption
• Significantly reduced cabling construction costs
• Reduced bulk allow for more flexible architectural
design considerations
• Uses a single strand of single-mode graded fiber.
• Technically Future Proof (Passive Components)
- SM fiber has an unknown bandwidth limitation.
- Upgrades to the next generation are as simple
as replacing the electronics (More on that later)
• Lower future expansion costs
POL Facts and Benefits
Optical Line Terminal Optical Network Terminal
Traditional POL Architecture
PASSIVE (No Power Required)
GPON details
Active Components – Located in the MDF
• Optical Line Terminal – OLT – - Located in the Data Center
- After the Level-3 WAN router
- Uses GPON protocols
- Support VLAN (over 4500)
- 128-bit security encryption
Different vendors provide OLT solutions based on same ITU984 standard
Active Components – Located at the desktop area
• Optical Network Terminal - ONT
- Located near the user or device
- 4 RJ45 (10/100/1000) output ports with optional POE
- Up to 62W* of available POE
- Standard HVAC is adequate
- Optional internal or external battery back-up.
- Up to 8 VLAN per port and a max of 16 VLAN per ONT*
*Vendor Specific
Different vendors provide ONT devises from desk-top to wall-mount
- proprietary solution –
Traditional LAN vs. PON
Traditional LAN Optical LAN
IDF Office Space MDF
Basic Premise of Passive Optical LAN
Floor n
Access Switches
WLAN
Short CAT-5/6
Core Router
Distribution Switch
Copper-based Ethernet LAN
56
PON Ports
4-port Work Group
Terminals
Fiber 8
Fiber 1
PON 1
PON x
GPON Layer2 Switch
WAN
Floor 1
Access Switches Short
CAT-5/6
Passive Optical LAN
Long CAT-5/6
Long CAT-5/6
Fiber 32
Fiber 1
WLAN
7000+ Ethernet
Ports Served
4 8
1700+ WGT’s
Fire Suppression
32
Heavy Duty Cable Trays
Heavy Duty Cable Trays
UPS
AC
HVAC
Multi-Mode Fiber
Single-Mode Fiber
(20km reach)
Light weight or no Cable Trays
Light weight or no Cable Trays
Long PoE Cables
Long PoE Cables
Short PoE Cables
Short PoE Cables
8 8
8
20 kilometre
Splitter Technology
• Splitters are passive components representing an important role in Passive
Optical Networks
• Two types used:
• Fused Biconilcal Taper (FBT) – old technology
• Planar Lightwave Circuit (PLC) – latest technology
• Multiple input (M) and multiple output (N) – 1x2 / 1x8 / 1x16 / 1x32 / 2x32
• PLC Splitter, based on silica optical waveguide technology and precision
aligning process
• Theoretical loss for a 1x32 is 15db – good PLC splitter provide <16.5db
Optical LAN Link Budgets
May 15, 2014 19
• The maximum PON distance is limited primarily by optical attenuation. Contributors are fiber loss attenuation and PON splitter attenuation.
• Optical LAN loss budges must be between 8dB and 28dB; meaning smaller split ratios may require an inline attenuator to insert more loss.
PON
Splitter
Fiber loss per km
is 0.35 dB (1260 - 1360 nm)
Every time the signal is split two ways, half the power goes one way and half goes the other. So each direction gets half the power, or the signal is reduced by
10log(0.5)=3 dB
Practical loss is 3.5 dB nominal, so every two-way split costs about 10 km distance @ 1310 nm
Half
Power
Half
Power
Attenuator Loss Unit
Optical Loss 1310 nm 0.35 dB / Km
Optical Loss 1490 nm 0.25 dB / Km
Optical Loss 1550 nm 0.22 dB / Km
Splice Loss per unit 0.05 dB
Connector Loss 0.35 dB
1X32 PON Splitter 16.7 dB
1X16 PON Splitter 12.9 dB
1X8 PON Splitter 7.8 dB
1X4 PON Splitter 5.4 dB
1:2 split ratio
GPON Optical Budget –
• Splitter (1:32) = 16.5 dB
• Fiber loss (20km) = 7.0 dB
• Connector / Splice loss = 3.5 dB
27.0 dB
Bandwidth Comparison GPON vs Copper LAN
Cisco Catalyst 4948
10/100/1000BASE-T Vs
With 1Gbps Uplink to aggregation layer:
- 1G / 48ports = 20Mbps available per user
With 10Gbps Uplink to aggregation layer:
- 10G / 48ports = 208Mbps available per user
With 1/32 splitter
DS 2.48Gbps = 77Mbps available per ONT
US 1.5Gbps = 46Mbps available per ONT
0
20
40
60
80
100
120
140
160
180
200
Estimated Peak Bandwidth per User (Kbps) 2000 to 2013
Quelle: March 2013 – Gartner Research —
How Cloud, Mobile and Video Will Increase
Enterprise Bandwidth Needs Through 2017
Tech Forum „Verkabelung - Netze - Infrastruktur”
0
1000
2000
3000
4000
5000
6000
7000
Base Low Cloud Med. Cloud High Cloud High Video Super User
Projected Peak Bandwidth per User 2017 (in Kbps)
Bandwidth Usage Projections in the LAN
PON Key Elements: Cable Deployment Reduction
Optical LAN
Requires this
much cable
Green Benefits Reduction in non-renewable materials
Reduction in cabling costs
Reduction in power consumption
Floor space savings
Ceiling space and weight
23
IBM Case Study
Tech Forum „Verkabelung - Netze - Infrastruktur”
May 11, 2012 Revised Directive
POL Users Today
Hospitals
Campuses
Universities
Cruise Ships
Hotels (Large)
Government and Military
High Occupancy Buildings (Call Centers)
Multi-Tenant Units (Commercial and Residential)
• Choose Fast & Easy (reduce installation time)
• Flexibility of deployment (knowing exact distance not a key factor)
• Extra slack does not affect performance (fiber has low loss
per km)
• Pre-Terminated cable assemblies: pre-tested at the
factory (save time on installation and testing)
• 25-year warranty certifications
Fiber Deployment Strategies
5/15/2014 Page 26
MPO
MPO MPO MPO SC SC SC SC
Fiber Distri Hub
Rapid Distri Terminal
SC
SC
Etage Zone Arbeitsplatz
GVT
Splitter
Point to Multipoint
Features High
Flexibility High
Material Cost Medium
Installation Time low
Tech Forum „Verkabelung - Netze - Infrastruktur”
Fiber Deployment Strategies
MPO
SC SC SC SC
SC
SC
Etage Zone Arbeitsplatz
GVT
Splitter
Point to Multipoint
MPO/SCAPC cassette
Features Medium
Flexibility Medium
Material Cost Medium
Installation Time Medium
MPO SC
Fiber Splitter Box
SC
Tech Forum „Verkabelung - Netze - Infrastruktur”
Fiber Deployment Strategies
MPO
SC SC SC SC
SC
SC
Etage Zone Arbeitsplatz GVT
Splitter
Point to Multipoint
MPO
TFP Splitter
Rapid Distri Terminal
Features Low
Flexibility Low
Material Cost Med / Low
Installation Time Low
Tech Forum „Verkabelung - Netze - Infrastruktur”
Fiber Deployment Strategies
Standard Bodies Update
In February 2009, the Telecommunications Industry Association TR-42
Engineering Committee published TIA-568-C.1, which was the first revision to
recognize duplex single-mode fiber for use in the horizontal.
On August 14, 2012, TR-42 issued an addendum to the TIA-568-C.0 Generic
Telecommunications Cabling for Customer Premises standard that adds POL
technology standards as supported single-mode fiber applications for the LAN.
Note: POL added to 13th Edition of TDMM – Chapter 5 Horizontal Cabling
Founded to advocate the global adoption of passive
optical networks in the LAN marketplace
– www.apolanglobal.org
Founding Members
Corning
SAIC
TE
IBM
Tellabs
Zhone
Many membership applications in first week
Expect 50 – 60 members in first year
APOLAN Association
Project analysis – R&D HQ Sweden -
300 R&D Engineers – 3 Floors – 500 drops – Design limitations
Case Study: TIA Headquarter USA
“As a standards organization, we are at the
forefront of technology, and we realized the
POL was one of the latest leading
technologies we wanted to embrace,” says
Tony Zarafshar, the IT manager for TIA.
Sandia National Laboratory
Case Study
- Cross country high data rate
- 65% energy savings / 1 million KWH over 5Y
- 13000 users across 265 buildings
- Real estate savings
- 50% CAPEX reduction when compared to traditional Ethernet installation
- 12M$ savings over 5Y
Case Study: Sandia Research Laboratory / Video
www.PONsource.com
For additional information…
….It’s now the time for a new change !!
“Insanity: doing the same thing over and over
again and expecting different results”
A thought to close with…
Questions & Closure
Luca Rozzoni RCDD
POL Program & Business Development Manager EMEA
luca.rozzoni@te.com
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