REDEFINING RATE AND REACH

P h y l o g yTM

Delivering proven solutions that extend bandwidth in ADSL1

and ADSL2+ access networks since , Phylogy's best-of-

breed xDSL line conditioning technology is currently

installed in over 120 wireline carriers across the US,South

America, and Europe.

2002

DOUBLES

AREA

IPTV SERVICE

VSL2 DSLAM

25Mbps

STANDARDVDSL2

STANDARDVDSL2

25Mbps

EXTENDEDVDSL2

EXTENDEDVDSL2

3Kft

6Kft

Break Throughthe 3Kft Barrierto 25 VDSL2Mbps

Break Throughthe 3Kft Barrierto 25 VDSL2Mbps

Break Throughthe 3Kft Barrierto 25 VDSL2Mbps

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Doubles the IPTV Service Area of existing DSLAMS

Can Double Revenue from existing IPTV DSLAMs

Cuts the Cost of Deploying New VDSL2 30 - 70%

Leverages ROI on all existing VDSL2 assets

Reduces the Time to Deploy VDSL2 up to 90%

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Fundamentally Scales ROIacross IPTV Access Networks

The TLC Advantage

Scaling the Network Design Rules for VDSL2

By reliably extending VDSL2’s 20mbps service reach up to 85%

and 25mbps by 65%, carriers can now plan IPTV service areas up

to 100% larger than currently possible using a single DSLAM site.

This augmented reach means the capital resources supporting

each IPTV DSLAM (like backhauls, remote terminals, and

switchports)canbeamortizedovertwiceasmanyhomespassed:

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Doubling the IPTV revenues per DSLAM shelf

Increasing bandwidth utilization of backhauls

Improving the utilization efficiency of all VDSL2

assets across the entire access network.

TLCs Leverage the Key VDSL2 Metrics

The use of TLCs improves all the key metrics in IPTV access

architecture, letting carriers strategically scale their VDSL2

network design rules. This fundamental advance in network

design reduces network complexity and cost, accelerates

profitability,andstrengthens long-termROI.

3 4 5 6Kft

2.8 Kft GAIN for 20 Mbps

9 Mb

GAIN

Data measured on 26AWG binder group

(25 pr BKTA) running 8 lines of VDSL2

at Phylogy Interoperability Testing Lab

TLC

Conditioned

Unconditioned

VDSL2

9.7Mb

GAIN

Mbps

26

22

18

14

Nominal TLC Gain in VDSL2 Performance

TLCBandwidthPerformancewithinaBinderGroup

The rapid drop-off in VDSL2 bandwidth over distance is

commonly attributed to the degradation of the high-frequency

portion of the DSL carrier signal due to copper impedance. But

anemerging issue is thecrosstalkwithin thecopperbindergroup

whichalsocritically limitsVDSL2reach.

Phylogy has focused extensively on solving this challenge,

testing multi-pair performance in our network interoperability

lab. The table below shows the bandwidth for eight simul-

taneous lines of VDSL2 running in a 25-pair, binder

group. The top table shows unconditioned VDSL2 and the

bottomlistsTLC-conditionedperformancepast2Kft.

26AWG

Breaking Through VDSL2’s 3Kft Barrier

The Technology

The Science Behind TLC’s Patented Technology

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When a TLC is inserted into the VDSL2 circuit half way between the DSLAM

and the CPE modem, the VDSL2 chipset re-initializes and then senses the

TLC as the modem. Since the TLC is 50% closer than the CPE, the VDSL2

chipset characterizes this as a cleaner circuit, reducing its power gain and

loading more bits into the higher PSD masks.

This “PSD shaping” induced by the TLC results in DSL carrier noise being up

to 6dB lower when it arrives at the TLC node.

TLCs then apply additional active noise cancellation using common-node

rejection to notch-filter RF interference.

Next, full-spectrum amplification using variable DC gain is applied. During

initialization, TLCs profile the carrier amplitude received form the DSLAM and

apply DC gain to compensate for line loss, .

Selective spectrum amplification then further boosts higher frequency PSD

bins. Using peaking equalization, the TLC boosts gain on those data-rich

PSD bins in the higher spectral range of the copper medium.

optimized on a line-by line basis

TLCs are deployed as 2.5 x 4” dual-port line cards housed in weatherized

enclosures.Theyarespiced intoexistingornewVDSL2 linesmidwaybe- tween the

DSLAMandtheCPEmodem,andpoweredbythePOTS48V.

TLCs operate only on the VDSL2 carrier envel-

ope. No decoding, IP, or repeater functions

are performed, and TLCs are compatible with

all VDSL2 bandplans. Fully xDSL standards-

compliant, TLCs can be deployed in mixed

ADSL1, ADSL2+, and VDSL2 environments,

and Phylogy is the only manufacturer of VDSL2-

compliant lineconditioners.

TripleStream

Line Conditioning:

Phylogy’s “TLC ”

TM

TM

IPTV DSLAM

10-LINE TLC

CPE /

MODEMS

The VDSL2 Challenge

Original VDSL2

performance

specificationsand resulting DSLAM

design rules were

intended to serve

25Mbps out to 4.5Kft.

Yet today many

VDSL2 modems will

not even sync over

3.5Kft.

VDSL2's inability to meet original design rules

means that IPTV networks cost significantly more than anticipated. Now

Phylogy’s proven ability to extend 25Mbps IPTV service out to 5Kft brings

IPTV networking costs back into line to improve bottom-line performance

for wireline carriers.

Mbps

40

36

32

28

24

20

16

12

Kf t 2 3 4 5 6

Bandwidth Range Required

for Hi-Def IPTV Services

2008

Current VDSL2

performance plot per ATIS

2006 VDSL2

performance plot

per Telcordia

2 3 4 5 6

50% Loss of

Service Range

Expected

Perform

ance

Actual Performance

TLCs Offer “Best Practices Engineering”

to Optimize ROI for IPTV Access Loops

To fundamentally improve ROI and profitability of IPTV

services, TLCs deliver a network-wide scaling factor that can

broadly impact core business aspects of the access loop

architecture.

Thus, we offer our approach as a “Best Practices Network

Engineering” option which significantly improves both network

performance and the utilization efficiency - and ROI - of all

existing xDSL assets including DSLAMs, remote terminals, fiber

backhauls,andCOswitchports.

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Aggregate more IPTV subscribers per DSLAM

Require fewer switchports per service area

Require fewer remote terminals per service area

Concentrate higher bandwidth per backhaul, and

reduce the need for additional fiber

Reducing VDSL2 Networking CAPEX

Installing a new IPTV Remote Terminal (RT) entails hidden costs

beyond just the obvious equipment and labor. Up to 30% of the

cost of a new IPTV overlay can be spent in re-arrangement of

copper legsneededtoreachthenewRTsite.

Real-world comparisons of these costs show that installing high

density TLC cabinets instead of new IPTV RT/DSLAMs can cut

CAPEX costs by one-third. For low-density applications using

pole or pedestal mounted TLCs , IPTV carriers can cut access

networkCAPEXupto70%.

TAKE THE PHYLOGY “PMO” CHALLENGE: DEPLOY TLCs OR NEW RT / DSLAMs?Whether the goal is to incrementally add new customers to existing CO or RT-based DSLAMs, or to install an entirely newIPTV service area, the integration of TLCs into your network design will prove to be the faster, cheaper, and smarter option

than Present Methods of Operation (PMO)

Reach Unserved and Under-Served IPTV Subscribers without Adding New Remote Terminals

For 48 lines of VDSL2

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Cabinet-deployed TLC installation aggregates dozens

of homes into a single site requiring no external

power, rectifiers, or batteries

Simplifies network planning, & engineering

requirements compared to RT / DSLAMs

Cuts time-to-market from months to weeks -

cabinet installation and line splicing with integral

cross-connect can extend new IPTV service within

weeks to enable subscriber responsiveness

Costs 30 - 50% less than installing new RT / DSLAM

NEW TERMINAL

NEW BACKHAUL

NEW DSLAM

NEW POWER

NEW BATTERIES

NEW CROSS-X

NEW COPPER LEGS

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TLCs�

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24 DUAL-PORT

INTEGRAL CROSS-X

INTEGRAL SPLICE BAY

?

For 20 lines of VDSL2

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Pole-mounted conditioning simplifies network

design by reducing components, complexity,

and engineering requirements

Cuts time-to-market 98% or more.

Can mount and splice into existing lines within hours

Cuts VDSL2 installation cost up to 70%

Enhances flexibility & subscriber responsiveness.

Makes turnup of new IPTV services now feasible on-

demand within hours to match cable’s 24-hour

installation offers

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NEW POWER

NEW BATTERIES

NEW CROSS-X

NEW COPPER LEGS

NEW PAD & TERMINAL

NEW BACKHAUL

NEW DSLAMNEW TLC TERMINAL

10 DUAL-PORT TLCs

SAME-DAY SPLICING

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IPTV DSLAM

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TLCs install as passive network elements

Self-powering; 1/4 watt current uses existing

-48 POTS supply; can be safely hot-swapped

No external power supplies, batteries, rectifiers, or active

cooling required

Requires no EMS or IT integration, no custom DSLAM

settings or optimization

Autocalibration maximizes data rates for the unique line

conditions of each subscriber pair, requiring no DSLAM

adjustments nor additional field or CO setup

Uses only standard outside plant procedures for

installation and turn up – no special tools or training used

Comprehensive planning and step-by-step installation

procedure guides provided

Application engineering support provided at no cost

VDC

Phylogy’s Turnkey Solution

Simplifies Network Engineering

with

and Network Integration

Seamless Installation Procedures

Worry-Free

Breaking Through VDSL2’s 3Kft Barrier

INSERTING TLC INTO

48-LINE TLC CABINET

INSERTING TLC INTO

48-LINE TLC CABINET

Comprehensive Suite of Line Card Enclosures

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Enclosures are available in wide range of service capacities to

match subscriber densities and all feature plug-&-play

backplanes pre-connected to pigtails for rapid field splicing.

Enclosures support all access network deployment scenarios:

manhole, aerial, pole, pedestal, underground, and cabinet.

Backplane designs for all s may be licensed to

carriers wanting to use their own preferred cabinet suppliers.

Phylogy enclosure

Offices and Distributors Worldwide

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For inquiries and ordering information, contact

For distributor inquiries, contact

For pre-sales application support, contact

sales@phylogy.com

partners@phylogy.com

applications@phylogy.com

Only Standard-Practice Outside Plant Installation

Procedures Are Required

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No special training required

No special tooling needed

Fully documented procedures

Flexible Deployment Options

CONDITION 5 - 10 LINES AT A POLE

5 - 10 LINES

AERIAL SPLICED

5 - 30 LINES

AERIAL SPLICED

CONDITION 5 - 30 LINES AT A PEDESTALSEQUENCE FOR UPGRADING EXISTING UNDERGROUND PEDESTAL FOR 5 - 30 LINES

SEQUENCE FOR UPGRADING EXISTING UNDERGROUND PEDESTAL FOR 48 - 192 LINES

Phylogy Corporate Offices - Phone 1-866-PHYLOGY2350 Mission College Blvd. Suite 400, Santa Clara, CA USA 95054 www.phylogy.com

Phylogy and TripleStream are registered trademarks of Phylogy, Inc. All rights reserved. US Patent number 7,110,528 and other patents pending. Product information subject to change without notice - rev 2009.a

Conditioning the Loop - Two Options

Two primarily different deployment options can be used to

enable a flexible, widespread, and complementary approach to

service extension.

Using our high density cabinets, carriers can lay the foundation

to meet growing demand by deploying line conditioners across

the entire distribution area to support higher aggregate

bandwidth capacity and higher efficiency of all xDSL assets.

Phylogy’s one-to-15 slot enclosures support on-demand

installation to boost bandwidth for underserved individual

subscribers. Fast, cost-effective, and easy to deploy, these

band-aid installations let you opportunistically protect your

subscriber base against competitive erosion and provide

revenue-enhancing service upgrades for time-sensitive special

projects.

Capture Customers Opportunistically

Best-Practices Network Conditioning:

Quick-Turn Provisioning:

Deploying Line Conditioning