- 80% MPEGOPTIMIZED      ARTIFACTS FOR IPTV                            + 30% VIDEO                              PAYLOAD   ...
Ensuring the highest quality video experience                 - 80% MPEG  OPTIMIZED      ARTIFACTS   FOR IPTV             ...
Ensuring the 26Mb/s experience                         Embarq is the only DSL chipset tailored                         to ...
Ensuring the 26Mb/s experience    SBC IP-TV:        Likely Initial Bandwidth Allocation                     THE DIGITAL HO...
Ensuring the 26Mb/s experience    SBC IP-TV:           Likely Initial Bandwidth Allocation                     THE DIGITAL...
Ensuring the 26Mb/s experience    SBC IP-TV:           Likely Initial Bandwidth Allocation                     THE DIGITAL...
Ensuring the 26Mb/s experience                                                                                            ...
Ensuring the 26Mb/s experience             •    Video is the killer app for DSL                               DELAY      N...
Ensuring the 26Mb/s experience             •   20Mb/s service is NOT enough             •   4Kft reach is NOT enough      ...
Technology Breakthrough                                                                                     EMBARQ        ...
DSL Technical Advantage                          Delivering the                                                          ...
fresh DSL thinking                         Reducing Jitter & Delay for HDTV             •   MPEG Artifacts•   Moving      ...
fresh DSL thinking                         Reducing Jitter & Delay for HDTV             •   Artifacts get embedded at     ...
fresh DSL thinking                         Reducing Jitter & Delay for HDTV             •   MPEG Artifacts with VDSL2     ...
DSL Technical Advantage                          Delivering the                                                          ...
fresh DSL thinking                         DSL Technical Advantage                          Delivering the               ...
fresh DSL thinking                         Video-Centric Bandplan      •   Today’s internet useage:         The only “Inte...
fresh DSL thinking                                Video-Centric Bandplan                                THE ONLY FRESH DES...
fresh DSL thinking                                Noise is bursty in time                 •        Short frames can surviv...
fresh DSL thinking                                Wideband Modulation             •             Wideband Modulation = shor...
fresh DSL thinking                                Wideband + MultiCarrier             •             MultiCarrier Wideband ...
fresh DSL thinking                                       Inherent Noise Tolerance                           •   Short fram...
fresh DSL thinking                         Inherent Noise Tolerance             •   Short frame size EMBARQ               ...
fresh DSL thinking                                   Adaptive Noise Management                        •   Short frame size...
fresh DSL thinking                                  Adaptive Noise Management                        •   Short frame size ...
fresh DSL thinking                         Eliminate DSLAM Entraining             •   VDSL2 attempts adaptive noise manage...
fresh DSL thinking                          Reducing Latency by 80%             •   Embarq eliminates the need for DSLAM t...
fresh DSL thinking                         Architectural Comparison                         THE ONLY FRESH DESIGN TAILORED...
the Equipment Manufacturer                          What Embarq offers                                                   ...
Tam Breakthrough     Embarq’s longer reach and lower cost      of deployment will increase the                           ...
Manufacturer Benefits                                •   Larger Market - based on carrier demand for superior performance ...
U-Drive Demo Bench                                                                  Control for adjusting User-Configurabl...
the U-Drive Test Bench                                                                                                   f...
carriers’ business goals for                      Delivering unique value                                                ...
understanding your customer                         Cable-Competitive Video Services               •   26Mb/s @ 6Kft enabl...
understanding your customer                         Cable-Competitive Video Services             •   120 Channels or 10,00...
understanding your customer                         Giving the Carrier Higher ROI             •   Carrier leveraging exist...
understanding your customer                          Lower Cost of Video over Copper                    •    Today’s typic...
understanding your customer                          Cost of VDSL2 Transport                    •    Today’s typical VDSL2...
understanding your customer                          Cost of Embarq Transport                    •    VDSL2 upgrade = $910...
understanding your customer                          Cost of Embarq Transport                     •   VDSL2 upgrade = $910...
understanding your customer                          Cost of Embarq Transport                    •    Investing $910k in E...
understanding your customer                         Lower Cost of Video over Copper                                       ...
understanding your customer                           Delivering Crucial Carrier Value                          Ensures C...
Delivering Embarq                                                                               •    Logical evolution of...
Development Schedule                            FPGA version scheduled for release January 2006                         ...
Contact                            Brad Ketch, President & CEO of Rim Semiconductor                             is visiti...
The Video-Tailored Solution             •   Fresh thinking delivers DSL tailored for the Video Network          SHORT FRA...
DSL Technical Advantage                          Delivering the                                                          ...
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Service-Assured Video over DSL Chipset

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Sales presentation featuring a new DSL chipset offering advanced performance for IP-video

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  • Welcome to Rim Semiconductor Incorporated. Our mission is to deliver the next generation of chipsets for Video over Copper and overcome the inherent limitations of VDSL2
  • Our next-generation VDSL chipset is called Embarq. Embarq(TM) is the only legitimate IPTV transport processor capable of satisfying: the carriers’ core business goals the video requirements of the access network and the revenue goals of the equipment manufacturer The significant differentiators of Embarq are: 30% higher bandwidth payload for video 50% longer reach over copper an 80% reduction in both packet latency and MPEG artifacts for video less than ½ the cost of VDSL2 for access network deployment
  • While VDSL2 is promising HDTV delivery over copper, Embarq offers the only DSL architecture specifically tailored to meet the specific transport needs for HDTV video over copper. We say this because for carriers to implement cable-competitive video services, they must be able to install a video over copper solution capable of delivery 26Mb/s to the home.
  • Let’s understand why 26Mb/s is the necessary target bandwidth. While SBC’s IPTV lab is targeting 20Mb/s, we believe realistic service for the Digital Home requires 26Mb/s. Both analysts and the US Telecom Association are targeting 26Mb/s because IPTV service must expect subscriber demand for 3 simultaneous HDTV channels, in addition to T1 rates for internet access and ½ a Meg for derived voice. For the copper carrier to install a video infrastructure capable of competing head-to-head with cable, they must not only deliver 21 Megs of video, but also maintain video QOS while the family: operates a home office, downloads streaming music, browses the internet, and enjoys online gaming.
  • In view of this realistic demand for the digital home, VDSL2 serving 20Mb/s just does not measure up. Shown here is the payload of VDSL2 compared the the payload of Embarq as measured at 6000 feet from the DSLAM or CO.
  • Over 30% of rural telcos in the US are already offering some form of video service. And the balance are planning installations within the next two years. But to deliver services adequate to attract cable customers, the carriers’ new video access network must support the full range of Video-on-Demand, Pay-per-View, and regular HDTV programming to which subscribers are now accustom. This is wy we say that 26Mb/s is the realistic target for the Digital Home, and why we say Embarq is the only DSL option ready to legitimately support the core business goals of today’s copper carrier.
  • When comparing actual measured bandwidth over 24 AWG copper for Embarq, we have demonstrated a 50% increase in range for our 26Mb/s service versus the claims of VDSL2. And in confidential meetings with equipment vendors testing actual VDSL2 chipsets, they tell us that they are not even able to realize these claimed goals for VDSL2 reach and bandwidth
  • To put a finer point on why we are focused on video, we believe that video is the Killer Application for DSL. Yet video brings new – more stringent - requirements to the digital access network. We all know that voice service cannot tolerate more than a few milliseconds of delay, or messages become unintelligible. Yet we can hear words amidst a moderate noise background. Data - on the other hand - cannot tolerate noise for it creates bit-errors. But packet data protocol does accommodate delays by re-sending corrupted data Finally video cannot tolerate either because while the noise corrupts the image quality, packet re-sends are not tolerable without interrupting video’s streaming flow So while the last decade’s focus on data and voice has created robust access technologies, the unique needs of video have not been fully addressed yet by copper solutions.
  • So we believe the inherent limitations of VDSL2 are not adequate to solve the needs for today’s video access needs: 20Mb/s at 6Kft is not adequate bandwidth for cable-competitive broadband a 4Kft reach is not adequate since that doubles the cost of an access deployment, compared to Embarq the overhead allocated for VDSL2 QOS is not adequate to protect the video stream VDSL2 is simply an inadequate extension of old VDSL technology and does not provide the kind of fresh DSL thinking required to make video-over-copper commercially successful for carriers
  • In fact, by plotting the history of xDSL efforts, we can see how VDSL2 is an extension of old VDSL thinking, and how many VDSL2 vendors are trying to tack on fruitless work-arounds to make VDSL2 appear attractive. Yet all these workarounds are simply not required, are too costly, and do not make sense in view of Embarq’s breakthrough performance. And from the equipment vendor’s viewpoint, only Embarq’s performance advantage will provide the breakthrough network performance - both in bandwidth and cost - that can give the DSLAM maker an advantage against Alcatel’s world-renown dominance
  • In attempting to deliver video-optimized DSL, Embarq brings important advances to the science and engineering of DSL. Fundamentally we are addressing the long-standing goals of DSL: to advance the distance to which higher bandwidths can be served To assure maximum possible Ethernet payload over that bandwidth To make sure that payload has QOS optimized for video services. Actual measured results of our system performance have extended the delivery of 26Mb/s From 4Kft with VDSL2 to 6 Kft using 24 AWG copper, achieving a 50% improvement in reach.
  • Since we are focused on video as the Killer Application for DSL, we wanted to demonstrate the importance of packet delay and jitter on the HDTV signal quality. Specifically, the packet re-sends that are so familiar and tolerated in internet traffic, simply destroy the HDTV picture quality that is dependent on a reliable 9Mb/s feed. MPEG compression exploits the slow-changing portions of the video frame, so image motion is the first aspect to be compromised. And then fine-resolution detail - the hallmark of HDTV – is also degraded significantly
  • Avoiding introduction of these MPEG artifacts is Embarq’s goal. Artifacts are the visual result of digital delay and jitter - and are created when corrupted data must be re-sent. Once a re-sent packet arrives, it can then be reconstituted with additional errors like out-of-order and duplicate packets, further degrading video streaming. Finally, every instance of packet loss and the resulting digital artifacts are “memorialized” up the protocol stack. So errors introduced at the physical layer cannot be removed, and are added to the entire protocol error accumulation. Embarq’s system latency is 80% lower than VDSL2, meaning VDSL2 will deliver 5 times more MPEG artifacts, shown in the next slide.
  • If you look closely you can see a demonstration of the loss of picture quality resulting from VDSL2’s 80% higher rate of latency and video jitter.
  • So to optimize video delivery over copper, our fundamental approach has been to leverage fresh thinking in four technological opportunities for managing noise and reducing latency at the receiver. By doing this we can more closely approach Shannon’s Limit than any of our competitors, and thus deliver superior DSL performance, optimized specifically for the needs of video transport over copper. The four key areas in which we have developed a fresh DSL solutions include: a video-centric bandplan which avoids VDSL2’s nailed-up upstream allocation using a time-division approach that enables up to 98% downstream allocation that maximizes video streaming a more noise tolerant approach that uses smaller frame sizes a dynamic noise adaptation approach that increases payload throughput a receiver-side processing method that avoids the latency inherent in VDSL2’s DSLAM entraining
  • Now lets see how each of these fresh DSL design approaches contributes to the Embarq solution.
  • The need for 21Mb/s of downstream video to serve 3 HDTV channels is daunting. Yet VDSL2 has permanently allocated 20% of it’s bandwidth to upstream data. In the historical context of internet useage, this makes sense, but not for video-centric service. While voice and internet traffic will continue to need upstream allocation, Embarq’s adaptive symmetry will elegantly accommodate upstream demand, yet also support maximum downstream payload for video.
  • To avoid a nailed-up allocation of the copper spectrum, Embarq is based on Time-Division Duplexing (TDD) scheme, in contrast to VDSL2’s use of Frequency-Division Duplexing (FDD). Note how the FDD bandplan allocates upstream / downstream segments of the copper frequency spectrum. These are rigid bandplan allocations which permanently tie up 20% of the DSL spectrum to upstream processing. Embarq uses TDD to allocate upstream signals on an as-needed basis. When upstreaming is required, Embarq allocates a short burst of time and uses 100% of the copper spectrum. In the remaining time, 100% of the spectrum is allocated downstream. This approach provides two key advantages for video transport: Downstream Bandwidth throughput capacity is continuously increased by 20%. Since video streaming is 99.9% downtream, This 20% gain in bandwidth capacity can be applied 99.9% of the time. Of course, when other voice and data services require upstreaming, the upstream allocation increases. But for pure video transport, Embarq delivers an immediate 20% gain And this 20% gain in performance using TDD is on top of the performance gains enabled by our advanced noise management techniques described earlier 2) Symmetry is adaptive on-the-fly to match customer demand Since no triple-play solution must accommodate upstream traffic, the ideal solution is to enable flexibel symmetry that responds to fluctuating demand pattersn The VDSL2 approach of permanently nailing-up bandwidth is obviously self-limiting, especially for video-centric applications 3) all sensing & switching performed at receiver, introduces no DSLAM training
  • The next set of slides will show how we manage noise better than VDSL2. To achieve this, Embarq has adopted the short frame-size approach. This is because short frames (derived from short symbols) can survive the bursty noise inherent in DSL transmission lines. Copper lines typically induct noise from a wide range of sources that are highly transient over time. Thus the long frames inherent in VDSL2’s DMT approach are more suseptible to interference, while More of our short frames can survive intact by inter-leaving between the moments of lower noise.
  • To achieve the short-frame approach, we adopted the wideband modulation scheme used earlier in CAP systems.
  • However single-carrier wideband sacrifices too much power over long copper reaches. Thus we created a hybrid between CAP & DMT we call Multi-carrier Wideband, or MultiWideband ™ We carved the wideband modulation scheme into 10 discrete multi-tone channels so that each channel can be Power-adapted to match the attenuation characteristics of the copper transport.
  • In addition to Embarq’s frequency-based noise management using our 10-channel multi-carrier, we also implement time-based noise tolerance using our short frame size. Short frames deliver an inherent noise robustness without using any dynamic signal processing, by simply taking advantage of the momentary lapses in noise power. In contrast, long frames are more vulnerable to noise spikes over time. This hypothetical time-domain diagram demonstrates the survivability of short frames compared to VDSL2’s DMT-based long-frame approach. With more packets requiring resend, latency goes up, degrading video picture quality significantly.
  • Also note that when Embarq packet are re-sent, their small size enables faster response to achieve faster recovery of payload. This faster recovery further reduces latency and jitter for video. Additionally, the entire voice, video, & data payload is more readily jeapordized by noise in VDSL2.
  • Additionally, we also leverage our short-frame advantage using dynamic signal processing. Very little overhead is required, because we are not directly processing the payload, but rather adaptively moving the noise rejection floor. VDSL2 employs a fixed signal-to-noise reference level, below which it rejects all payload. In contrast, we take advantage of short frame sizing to send data during brief periods of relative quiet to constantly adapt to varying noise levels with a dynamic, adaptive signal-to-noise floor. This approach can yield up to an 8dB of additional gain, available intermittently. Assuming this gain is available only 15% of the time, (between noise spikes) our Adaptive Noise Management can yield an average 1Mb/s of additional payload throughput.
  • Embarq’s Adaptive Noise Management – in concert with its inherent noise tolerance in both the time & frequency domains – is all achieved at the receiver end only. This receiver-side noise management eliminates the need for entraining the DSLAM, which the VDSL2 approach requires. The following slide illustrates the latency that DSLAM entraining requires.
  • Here we see the 3-step process of VDSL2’s approach to dynamic noise management called “adaptive bit loading”. When the VDSL2 receiver senses a drop in intermittent noise, it signals the DSLAM to boost the bit-rate. Then the DSLAM ramps up the bit-rate it sends to the CPE. In contrast, the Embarq line card in the DSLAM is constantly sending at a maximum full bit-rate, without the delay and bandwidth overhead required by DSLAM entraining. Note that the latency required by VDSL2 training results in the jitter and delay that directly jeapordizes video QOS.
  • In addition to reducing latency by removing DSLAM training, Embarq’s short frame size also minimizes video delay by recovering faster from packet losses. Since our frame size is only 1/50 that of VDSL2’s, our clock cycle to re-transmit damaged packets is 100 times faster. Operational testing has measured an aggregate 5:1 reduction in latency at the system level
  • So let’s summarize Embarq’s architectural approach vs VDSL2 Basically the need for optimizing a video access network requires two key components: An asymmetrical ratio favoring video’s downstreaming nature. A level of payload QOS that minimizes video delay & jitter The first issue of symmetry is addressed using the TDD vs. FDD bandplan approach. The second issue of payload throughput is a function of managing noise. The manner used by VDSL2 to address both of these needs is inherently crippled, and not the type of system architecture one would design if trying to optimize video delivery. In contrast, Embarq’s approach is clearly tailored to fit the specific needs of the video access network and thereby achieves: the superior performance required by video up to 60% cost reduction for access deployment due to extended reach fully integrated triple-play Ethernet solution
  • Now let’s examine some of the specific benefits Embarq brings to the Equipment Manufacturer
  • This chart from In-Stat shows that the VDSL integrated circuit market is growing about 24% per year, and that in 2006, it will be about $220 million. I would point out to you that while this is a large market, the projections do not take into account the positive impact that VDSL2 will have. We believe that because VDSL2 now opens up new services that were previously unachievable, the growth curve will get steeper. But this is not the end of the story. VDSL2 does not really give the telcos the HDTV strategy that they want, as we have discussed. Embarq has the potential to dramatically speed up the whole market, because it finally solves the biggest problem. We believe that Embarq has the potential to not just enter the market, but to actually shift it into a much higher gear!
  • So in addition to building greater demand for video over copper, Embarq will assure equipment makers a more responsive development team – one willing to listen to the specific preferences of the manufacturer and adapt to their needs. Additionally, manufacturers can realistically charge more for the Embarq solution based on its superior performance at ½ the deployed cost of VDSL2 (see following access cost slides) Finally, we believe this combination of outstanding value can help equipment makers compete successfully against Alcatel’s global dominance of DSL sales.
  • Rim Semiconductor intends to make our exceptional value completely clear and unassailable using this “U-Drive Demo Bench” The diagram shows that a 26Mb/s source feed consisting of the standard “digital home” bandwidth streams will be split to run through both the VDSL2 and Embarq chipsets simultaneously. An actual copper loop simulating the RT-to-home feed will be provided. The length of this loop can be controlled by any visitor to change form 2Kft up to 6Kft so that the resulting attenuation of bandwidth can be observed. In addition, the visitor can turn on or off any desired bandwidth source such as VOIP, VPN, or any of the three high-definition TV channels
  • The process for monitoring the resulting bandwidth will include: 6 HD monitors (3 for each chipset) w/ hi-def surround-sound speakers so actual picture and sound quality can be observed in real-time HDTV dropout meters measuring signal loss for each channel Bandwidth performance meters measuring both the raw Ethernet bandwidth, and the ratio of the Aggregate VDSL bandwidth versus the delivered Ethernet bandwidth – intended to demonstrate and quantify re-transmission error ratesFinally, this “U-Drive” test bench will also let visitors adjust minimum QOS levels for video, VOIP, etc so that we can demonstrate: that we have a viable EMS component in our product, and that we have not artificially embedded favorable QOS setting
  • Finally, let’s evaluate Embarq’s impact on the copper carrier. As we have said, Embarq’s more robust video delivery will let the carrier compete more aggressively against cable for subscribers - and in fact can leap-frog cable services running on analog DOCSIS plants. Perhaps most important is that Embarq assures these advantages at a 50% cost reduction compared to VDSL2. This access plant cost saving - coupled with the fact that the copper plant is already paid for – can help carriers end up with a higher Return-on-Investment from video-over-copper than cable companies
  • 26Mb/s @ 6Kft lets carrier leapfrog analog cable services with turnkey broadband solution supporting bundled voice, video, & data at lower system cost than Digital Cable
  • The video-over-copper access solution will use the “IPTV” consortium for programming. This consortium will assure subscribers the choice of over 10,000 channels. In comparison to cable’s fixed channel choices, IPTV is already demonstrating its mass appeal and has been shown by industry surveys to be a potent force in helping carriers capture cable subscribers
  • In fact, once the carrier decides to aggressively install such cable-competitive services, he will likely realize a higher ROI than cable companies
  • But perhaps most compelling is Embarq’s reduction in deployment costs for the video access network.
  • Now Mr. Salesman, study these slides, and then write your own summary here as a test of your understanding
  • Our contribution to DSL can be evaluated in the context of historical DSL efforts. In that continuum, we can observe that VDSL2 is a natural extension of VDSL, And as such, includes baggage from previous efforts that limits possible advances. Much of the late VDSL2 development efforts are actually work-arounds that attempt to play catch-up to mitigate the limitations inherent in the VDSL2 evolution scheme. At Rim Semiconductor, we are simply asking, “ If you were designing a video access network today, would you design around VDSL2?”
  • Service-Assured Video over DSL Chipset

    1. 1. - 80% MPEGOPTIMIZED ARTIFACTS FOR IPTV + 30% VIDEO PAYLOAD 1/5 THE LATENCY > THAN 1/2 ACCESS COST + 50% FURTHER REACH Solving the Video Delivery problems of VDSL2 copyright 2005, Confidential and Proprietary Rim Semiconductor, Inc
    2. 2. Ensuring the highest quality video experience - 80% MPEG OPTIMIZED ARTIFACTS FOR IPTV + 30% VIDEO PAYLOAD 1/5 THE LATENCY > THAN 1/2 ACCESS COST + 50% FURTHER REACH copyright 2005, Confidential and Proprietary Rim Semiconductor, Inc
    3. 3. Ensuring the 26Mb/s experience Embarq is the only DSL chipset tailored to fit the unique transport needs of the video network Both SBC’s IPTV lab & analysts predict demand for three simultaneous broadcast channels in the Digital Home New HDTV sets now selling for $800 eachTuesday, April 3, 2012 ©Rim Semiconductor Company Page 3 Confidential and Proprietary – Do Not Distribute
    4. 4. Ensuring the 26Mb/s experience SBC IP-TV: Likely Initial Bandwidth Allocation THE DIGITAL HOME: Realistic Demand HD TV (1 stream @ 9.3 Mbps) 9.3 HD TV (3 stream @ 7 Mbps – MPEG4) 21 SD TV (3 streams @ 2.1 Mbps) 6.3 Picture-in-Picture (3@ 130Kbps – MPEG4) 0.4 Picture-in-Picture (4@ 200Kbps) 0.8 Internet (3Mbps peak + STREAMING) 1.6 Internet (3Mbps peak) 1.0 VoIP (4 streams) 0.5 VoIP (4 streams) 0.5 Overhead (QOS ASSURANCE) 2.5 Overhead 2.1 Total 26.0 Total 20.0 Source: SBC, Merrill Lynch. Source: Rim Semiconductor Both SBC’s IPTV lab & analysts predict demand for three simultaneous broadcast channels in the Digital HomeTuesday, April 3, 2012 ©Rim Semiconductor Company Page 4 Confidential and Proprietary – Do Not Distribute
    5. 5. Ensuring the 26Mb/s experience SBC IP-TV: Likely Initial Bandwidth Allocation THE DIGITAL HOME: Realistic Demand HD TV (1 stream @ 9.3 Mbps) 9.3 HD TV (3 stream @ 7 Mbps – MPEG4) 21 SD TV (3 streams @ 2.1 Mbps) 6.3 Picture-in-Picture (3@ 130Kbps – MPEG4) 0.4 Picture-in-Picture (4@ 200Kbps) 0.8 Internet (3Mbps peak + STREAMING) 1.6 Internet (3Mbps peak) 1.0 VoIP (4 streams) 0.5 VoIP (4 streams) 0.5 Overhead (QOS ASSURANCE) 2.5 Overhead 2.1 Total 26.0 Total 20.0 Source: SBC, Merrill Lynch. Source: Rim Semiconductor HDTV HDTV HDTV HDTV SDTV VOICE SDTV DATA QOS SDTV VOICE DATA QOS VDSL2 EMBARQ THE ONLY FRESH DSL DESIGN TAILORED FOR VIDEO READY TO CARRY THE BANDWIDTH REQUIREDTuesday, April 3, 2012 ©Rim Semiconductor Company Page 5 Confidential and Proprietary – Do Not Distribute
    6. 6. Ensuring the 26Mb/s experience SBC IP-TV: Likely Initial Bandwidth Allocation THE DIGITAL HOME: Realistic Demand HD TV (1 stream @ 9.3 Mbps) 9.3 HD TV (3 stream @ 7 Mbps – MPEG4) 21 SD TV (3 streams @ 2.1 Mbps) 6.3 Picture-in-Picture (3@ 130Kbps – MPEG4) 0.4 Picture-in-Picture (4@ 200Kbps) 0.8 Internet (3Mbps peak + STREAMING) 1.6 Internet (3Mbps peak) 1.0 VoIP (4 streams) 0.5 VoIP (4 streams) 0.5 Overhead (QOS ASSURANCE) 2.5 Overhead 2.1 Total 26.0 Total 20.0 Source: SBC, Merrill Lynch. Source: Rim Semiconductor HDTV HDTV HDTV HDTV SDTV VOICE SDTV DATA QOS SDTV VOICE DATA QOS VDSL2 EMBARQ THE ONLY FRESH DSL DESIGN TAILORED FOR VIDEO READY TO CARRY THE BANDWIDTH REQUIREDTuesday, April 3, 2012 ©Rim Semiconductor Company Page 6 Confidential and Proprietary – Do Not Distribute
    7. 7. Ensuring the 26Mb/s experience reach 100 1Kft 2 3 4 5 6 7 - 50% MORE REACH 80 - EM V BA 60 D RQ SL 2 TM - 40 VD 26Mb/s SL DIGITAL HOME - 20bandwidth - 0 VDSL2 = promised, not actual Embarq = actual measured for the 26Mb/s digital home Tuesday, April 3, 2012 ©Rim Semiconductor Company Page 7 Confidential and Proprietary – Do Not Distribute
    8. 8. Ensuring the 26Mb/s experience • Video is the killer app for DSL DELAY NOISE SERVICE TOLERANT TOLERANT VOICE NO YES DATA YES NO VIDEO NO NO 26Mb/s DIGITAL HOME • Video demands mandatory QOS for reliable VoDSL for the 26Mb/s digital homeTuesday, April 3, 2012 ©Rim Semiconductor Company Page 8 Confidential and Proprietary – Do Not Distribute
    9. 9. Ensuring the 26Mb/s experience • 20Mb/s service is NOT enough • 4Kft reach is NOT enough • VDSL2 QOS is NOT enough HDTV SDTV SDTV SDTV VOICE DATA QOS VDSL2 HDTV • VDSL2 just tries to leverage HDTV old VDSL technology HDTV VOICE DATA QOS • Only Embarq delivers EMBARQ fresh thinking tailored for today’s video network for the 26Mb/s digital homeTuesday, April 3, 2012 ©Rim Semiconductor Company Page 9 Confidential and Proprietary – Do Not Distribute
    10. 10. Technology Breakthrough EMBARQ • HDTV Carrier needs 26Mb/s bandwidth VDSL2 • Eqpt. Mnf. at dead-end w/ VDSL2: 26Mbps BARRIER - fruitless work-arounds SPECTRUM MANAGEMENT - FTTC / FTTH irrational VDSL 50% MORE RTs, 4Kft REACH - Bonding not realistic ADSL2+ ADSL2 PAIR BONDING - VDSL2 just stretching old tech ADSL SERVE ONLY 20Mbps HDSL SDSL WORKAROUNDS • Embarq offers the unique DSLAM / CPE time solution to get the job done RIGHT 1999 2005 2006 THE ONLY DSLAM PRODUCT DIFFERENTIATOR AVAILABLE TO HELP YOU PENETRATE ALCATEL’S DOMINANCETuesday, April 3, 2012 ©Rim Semiconductor Company Page 10 Confidential and Proprietary – Do Not Distribute
    11. 11. DSL Technical Advantage Delivering the Video-Optimized: REDUCED JITTER LESS DELAY LOWER LATENCY Longer Reach Higher Bandwidth Larger Payload 26M @ 4Kft 26M @ 4KftTuesday, April 3, 2012 ©Rim Semiconductor Company Page 11 Confidential and Proprietary – Do Not Distribute
    12. 12. fresh DSL thinking Reducing Jitter & Delay for HDTV • MPEG Artifacts• Moving • Fine Image Detail Background • Fast MotionTuesday, April 3, 2012 ©Rim Semiconductor Company Page 12 Confidential and Proprietary – Do Not Distribute
    13. 13. fresh DSL thinking Reducing Jitter & Delay for HDTV • Artifacts get embedded at APPLICATION every layer of the protocol stack PRESENTATION • Artifacts are additive and PACKET LOSS INTER-PACKET JITTER cannot be removed DUPLICATE PACKETS SESSION • Phi layer jitter & delay OUT-OF-ORDER PACKETS TRANSPORT must be minimized for video • Embarq minimizes packet jitter & NETWORK delay better than VDSL2: - inherent noise tolerance DATALINK - dynamic noise management - no DSLAM entraining PHYSICAL - higher aggregate bandwidth - 20% higher downstream allocationTuesday, April 3, 2012 ©Rim Semiconductor Company Page 13 Confidential and Proprietary – Do Not Distribute
    14. 14. fresh DSL thinking Reducing Jitter & Delay for HDTV • MPEG Artifacts with VDSL2 EMBARQ• Moving • Lost Preserves Detail • Detail Background • Motion • Renders Fast MotionTuesday, April 3, 2012 Pixilation ©Rim Semiconductor Company Page 14 Confidential and Proprietary – Do Not Distribute
    15. 15. DSL Technical Advantage Delivering the WHAT IF YOU COULD APPROACH Shannon’s Limit? • Embarq applies four common-sense VIDEO-CENTRIC BANDPLAN technical advances INHERENT NOISE REJECTION to bring DSL perfor- DYNAMIC NOISE REDUCTION mance closer to NO DSLAM TRAINING Shannon’s Limit Embarq! Sh a Bandwidth nno n’ s l imit VDSL2 REDUCED DELAY, JITTER REACH (Copper Attenuation) HIGHER BW THRUPUT OPTIMIZED FOR VIDEOTuesday, April 3, 2012 ©Rim Semiconductor Company Page 15 Confidential and Proprietary – Do Not Distribute
    16. 16. fresh DSL thinking DSL Technical Advantage Delivering the Video-Centric Bandplan Short Frames Multi-wideband Inherent SNR Advantage Dynamic SNR No DSLAM Training 26M @ 4Kft 26M @ 4KftTuesday, April 3, 2012 ©Rim Semiconductor Company Page 16 Confidential and Proprietary – Do Not Distribute
    17. 17. fresh DSL thinking Video-Centric Bandplan • Today’s internet useage: The only “Intelligent BandPlan ” tailored to TM 60% of traffic is symmetric, the demand for downstream video peer-to-peer • Thus 20% of spectrum feature DOWNSTREAM UPSTREAM permanently allocated video 100% 0% upstream makes sense Data 60% 40% • But tomorrow’s video network: Internet 70% 30% 95% of BW is downstream, Voice 50% 50% needs 12:1 U/D ratio • Fixed upstream allocation used Embarq 100% 5% MAX VARIABLE in VDSL2 cripples video VDSL2 80% 20% • Only Embarq is tailored to MAX FIXED effectively serve downstream video networkingTuesday, April 3, 2012 ©Rim Semiconductor Company Page 17 Confidential and Proprietary – Do Not Distribute
    18. 18. fresh DSL thinking Video-Centric Bandplan THE ONLY FRESH DESIGN TAILORED FOR HDTV Ratio of Traffic Load DOWNSTREAM UPSTREAM 9.3 EMBARQ Mbps 100% 5% VIDEO FEED Embarq MAX VARIABLE VDSL2 80% 20% VDSL2 MAX FIXED COPPER SPECTRUM DNSTREAM DNSTREAM DNSTREAM 30Mhz UPSTREAM UPSTREAM UPSTREAM 0 1Khz 1Mhz 3Mhz 5Mhz 7Mhz 12Mhz THE xDSL SPECTRUM BANDPLANTuesday, April 3, 2012 ©Rim Semiconductor Company Page 18 Confidential and Proprietary – Do Not Distribute
    19. 19. fresh DSL thinking Noise is bursty in time • Short frames can survive bursty noise RESEND DATA DATA RESEND DATA DATA DATA RESEND DATA DATA RESEND Noise Power DATA DATA DATA DATA DATA DATA DATA Time More payload survives using short frames RESEND DATA RESEND Noise Power DMT uses Narrowband Modulation with long frames Time To obtain short frames & symbols, we adopted Wideband ModulationTuesday, April 3, 2012 ©Rim Semiconductor Company Page 19 Confidential and Proprietary – Do Not Distribute
    20. 20. fresh DSL thinking Wideband Modulation • Wideband Modulation = short symbols = short frame size Modulation To obtain short frames & symbols, we adopted Wideband Modulation Attenuation 1)We all agree that multi-carrier modulation optimal for throughput 2) But DMT is not the ideal multi-carrier Frequency 12Mhz modulation schemeTuesday, April 3, 2012 ©Rim Semiconductor Company Page 20 Confidential and Proprietary – Do Not Distribute
    21. 21. fresh DSL thinking Wideband + MultiCarrier • MultiCarrier Wideband Modulation = short frame + copper optimization Modulation Modulation Attenuation Attenuation Frequency Frequency Problem: Solution: Wideband alone = inefficient Multiple channels of modulation match to copper’s attenuation efficiently match copper attenuation curveTuesday, April 3, 2012 ©Rim Semiconductor Company Page 21 Confidential and Proprietary – Do Not Distribute
    22. 22. fresh DSL thinking Inherent Noise Tolerance • Short frame size ~ 1/50th of the VDSL2 FRAME EMBARQ DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATANoise Power VDSL2 DATA DATA DATA Time NOISE NOISE NOISE EMBARQ DATA RESEND RESEND DATA DATA RESEND RESEND RESEND RESEND DATA DATA 20mb/s thruput with 0 payload YIELDS VDSL2 RESEND RESEND RESEND LOW THROUGHPUT . . . HIGH LATENCY!! HIGH LATENCY!!!! THE VIDEO KILLER Tuesday, April 3, 2012 ©Rim Semiconductor Company Page 22 Confidential and Proprietary – Do Not Distribute
    23. 23. fresh DSL thinking Inherent Noise Tolerance • Short frame size EMBARQ DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA VDSL2 DATA DATA DATA NOISE NOISE NOISE 26mb/s thruput with 18Mb/s payload EMBARQ DATA RESEND RESEND DATA DATA RESEND RESEND RESEND RESEND DATA DATA 20mb/s thruput with 0 payload YIELDS VDSL2 RESEND RESEND RESEND SUPERIOR BANDWIDTH, MINIMAL LATENCYTuesday, April 3, 2012 ©Rim Semiconductor Company Page 23 Confidential and Proprietary – Do Not Distribute
    24. 24. fresh DSL thinking Adaptive Noise Management • Short frame size also enables dynamic noise rejection, adaptive on-the-fly EMBARQ DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA Dynamic UP TO 8 Db GAIN SNR Rejection Noise Power Level Time VDSL2 Constant SNR Floor Noise Power TimeTuesday, April 3, 2012 ©Rim Semiconductor Company Page 24 Confidential and Proprietary – Do Not Distribute
    25. 25. fresh DSL thinking Adaptive Noise Management • Short frame size also enables dynamic noise rejection, adaptive on-the-fly Dynamic UP TO 8 Db GAIN SNR Rejection Noise Power Level Time • Adaptive SNR performed at RECEIVER ONLY • DSLAM Training NOT REQUIRED • VDSL2 attempts Adaptive SNR called “Adaptive Bit Loading” which requires DSLAM Training = LATENCYTuesday, April 3, 2012 ©Rim Semiconductor Company Page 25 Confidential and Proprietary – Do Not Distribute
    26. 26. fresh DSL thinking Eliminate DSLAM Entraining • VDSL2 attempts adaptive noise management using DSLAM entraining: DSLAM DSLAM RECEIVE SEND SEND TRAINING SEND DATA TRAINING REPLY DATA FRAMES SIGNAL FRAMES EMBARQ CPE VDSL2 CPE • Adaptive SNR performed at RECEIVER ONLY Jitter • Higher Throughput • Higher • DSLAM Training NOT REQUIRED • Higher Delay • Higher Payload •VDSL2 attempts Adaptive SNR called “Adaptive Bit Loading” which requires DSLAM Training = LATENCY Which approach best serves your video access needs?Tuesday, April 3, 2012 ©Rim Semiconductor Company Page 26 Confidential and Proprietary – Do Not Distribute
    27. 27. fresh DSL thinking Reducing Latency by 80% • Embarq eliminates the need for DSLAM training DSLAM DSLAM EMBARQ CPE VDSL2 CPE • Embarq’s short frame size ~ 1/50th of VDSL2 DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA • Short frames speed up the packet re-send task • VDSL2 frames take up to 100 times longer to recover from packet loss: - 50 times longer to receive damaged packet - 50 times longer to re-send duplicate packet aggregate 5:1 reduction in latency at the system levelTuesday, April 3, 2012 ©Rim Semiconductor Company Page 27 Confidential and Proprietary – Do Not Distribute
    28. 28. fresh DSL thinking Architectural Comparison THE ONLY FRESH DESIGN TAILORED FOR HDTV 100% spectrum Rigid 20% Video-Centric utilization withTDD Permanently Bandplan 100% download Allocated on demand Upstream 1) Assymetry = HDTV downstream Video requires 2) Payload = no delay, jitter, latency • Inherent SNR Shannon’s limit • Adaptive Bit Loading • Dynamic SNR solving noise • DSLAM Entraining • No DSLAM training • Analog Filters Embarq VDSL2Tuesday, April 3, 2012 ©Rim Semiconductor Company Page 28 Confidential and Proprietary – Do Not Distribute
    29. 29. the Equipment Manufacturer What Embarq offers 26M @ 6Kft 26M @ 4KftTuesday, April 3, 2012 ©Rim Semiconductor Company Page 29 Confidential and Proprietary – Do Not Distribute
    30. 30. Tam Breakthrough  Embarq’s longer reach and lower cost of deployment will increase the rq Total Addressable Market (TAM) ba Em  26Mb/scarriersDigital Home will assure for the of Cable-Competitive SL 2 VD Services & increase VDSL demand Source: INSTATTuesday, April 3, 2012 ©Rim Semiconductor Company Page 30 Confidential and Proprietary – Do Not Distribute
    31. 31. Manufacturer Benefits • Larger Market - based on carrier demand for superior performance • More responsive development from Rim Semiconductor than from the VDSL2 development teams • Higher manufacturer margins – carrier will pay a premium for superior video performance & lower network cost • 50% reduction in cost of video access network for carriers • Penetrate Alcatel dominance with unique differentiation rq ba Em 2 SL VD Source: INSTATTuesday, April 3, 2012 ©Rim Semiconductor Company Page 31 Confidential and Proprietary – Do Not Distribute
    32. 32. U-Drive Demo Bench Control for adjusting User-Configurable copper length settings to change “reach” from 2Kft to 5Kt in 0.5Kft increments U-Drive Test Bed VDSL1 results S O U R C E F E E D E Q U IP ME N T: Next Level VDSL Next Level + 3x H iD e f TV channe ls DSLAM (ATM) CPE 24 AWG VOIP 3X VIDEO 26 AWG phone PC ENCODER ( Two separate 4 separate cable 26 Mb/s DSLAMs) spools at 10Kft PC ATM ROUTER ATM STREAM VOIP phone IP ROUTER 26 Mb/s IP STREAM Embarq chipset, in working IP-dslam + 3x VO IP aud io loop s configuration 24 AWG Embarq chipset, in + VP N traffic s im ulator working modem + O N LIN E G AM IN G configuration Embarq results + IN TE R N E T 26 AWG s tre am ing vid e o s ou rce Measure Latency Aggregate Ethernet HDTV Meters VDSL Bandwidth Bandwidth Dropout Meters Meters Patch panel for turning User-Configurable QOS settings for separate feeds on & off VPN, VOIP, and HDTV streams Ratio of Aggregate Transport BW on both VDSL & Embarq Vs resulting Ethernet = packet re-send INTERFERENCE GENERATORTuesday, April 3, 2012 ©Rim Semiconductor Company Page 32 Confidential and Proprietary – Do Not Distribute
    33. 33. the U-Drive Test Bench for the 26Mb/s digital home VOIP GAMING / MUSIC HDTV-1 HDTV-2 HDTV-3 SOHO / VPN VOIPVDSL2 EMBARQ DISTANCE FROM THE CENTRAL OFFICE AMBIENT NOISE / INTERFERENCELOW HIGH LOW HIGH copyright 2005, Confidential and Proprietary Rim Semiconductor, Inc
    34. 34. carriers’ business goals for Delivering unique value • Assuring Cable-Competitive Services • Leapfrogging Cable Services • Enabling Cable-Competitive 26M @ 6Kft Video at Lowest Cost 26M @ 4Kft • Enabling Higher ROI than CableTuesday, April 3, 2012 ©Rim Semiconductor Company Page 34 Confidential and Proprietary – Do Not Distribute
    35. 35. understanding your customer Cable-Competitive Video Services • 26Mb/s @ 6Kft enables cable-competitive level of service: - 3x HDTV - 1.5 Mb/s Internet - Voice-over-IP BATTLE FOR THE DIGITAL HOME • 26Mb/s lets carrier leapfrog analog cable services with turnkey broadband solution supporting bundled voice, video, & data at lower system cost than Digital Cable EXISTING COPPER BATTLE FOR THE DIGITAL HOME EXISTING CABINETS (RTs)Tuesday, April 3, 2012 ©Rim Semiconductor Company Page 35 Confidential and Proprietary – Do Not Distribute
    36. 36. understanding your customer Cable-Competitive Video Services • 120 Channels or 10,000? . . . the power of CHOICE! • Analog Cable is limited to 60 ~ 200 fixed channels, Digital Cable is limited to 200 ~ 500 fixed channels • IPTV can access 10,000 channels on-demand • Customer choice is a powerful market driver U.S. RURAL TELECOM ASSOCIATION: “ 57% of cable subscribers will switch to IPTV based upon expanded choice of programming”Tuesday, April 3, 2012 ©Rim Semiconductor Company Page 36 Confidential and Proprietary – Do Not Distribute
    37. 37. understanding your customer Giving the Carrier Higher ROI • Carrier leveraging existing Copper Plant - paid off 20 years ago • Cable still amortizing new digital plant - carrying higher system cost • Carrier can offer cut-rate pricing, BATTLE FOR THE DIGITAL HOME capture cable subscribers, & still maintain profit margins EXISTING COPPER BATTLE FOR THE DIGITAL HOME EXISTING CABINETS (RTs)Tuesday, April 3, 2012 ©Rim Semiconductor Company Page 37 Confidential and Proprietary – Do Not Distribute
    38. 38. understanding your customer Lower Cost of Video over Copper • Today’s typical CSA & copper plant • No VDSL service will reach 12Kft - more RTs must be deployed to deliver VDSL ): SA (C t EA Kf • Embarq’s extended reach requires the fewest E A R T 12 RTs - up to 56% less cost IC OU RV BATTLE FOR THE NG SE HI DIGITAL HOME ER AC • Fewer new RTs = faster deployment OM RE ST RS L CU RIBE CA SC YPI UB T 0S 60 BATTLE FOR THE DIGITAL HOME REMOTE TERMINAL (RT) HOUSING THE DSLAMTuesday, April 3, 2012 ©Rim Semiconductor Company Page 38 Confidential and Proprietary – Do Not Distribute
    39. 39. understanding your customer Cost of VDSL2 Transport • Today’s typical VDSL2 serves 20Mb/s to 4Kft • Seven additional RTs required • RT cost = $130K DS L2 -V - new right-of-way 4K ft - new permitting - new cabinet - new power - new DSLAM - new binder groups • VDSL2 upgrade = $910K 2 SL - VD ft 4K 2 SL - VD 4 Kft REMOTE TERMINAL (RT) HOUSING THE DSLAMTuesday, April 3, 2012 ©Rim Semiconductor Company Page 39 Confidential and Proprietary – Do Not Distribute
    40. 40. understanding your customer Cost of Embarq Transport • VDSL2 upgrade = $910K (7 new RTs) • Embarq serves 26Mb/s out to 6Kft L2 DS ft -V 4K 2 SL VD ft - 4K 2 SL VD ft - 4K 2 2 L SL V DS VD ft - ft - 4K 4K TRADITIONAL 12Kft 2 - VD SL SERVICE AREA ft 4K L2 DS ft -V 4K 2 SL VD ft - 4KTuesday, April 3, 2012 ©Rim Semiconductor Company Page 40 Confidential and Proprietary – Do Not Distribute
    41. 41. understanding your customer Cost of Embarq Transport • VDSL2 upgrade = $910k (7 new RTs) • Embarq serves 26Mb/s out to 6Kft • Embarq upgrade = $400k (3 new RTs) 6Kft - EMBARQ • Saves $510k = 56% less cost • Avoids installation of 4 additional RTs 6Kft - EMBARQ 6Kft - EMBARQ TRADITIONAL 12Kft SERVICE AREA 6Kft - EMBARQTuesday, April 3, 2012 ©Rim Semiconductor Company Page 41 Confidential and Proprietary – Do Not Distribute
    42. 42. understanding your customer Cost of Embarq Transport • Investing $910k in Embarq (4 more new RTs) • Embarq serves 17Kft CSA • Same investment yields 6Kft - EMBARQ 6Kft - EMBARQ 40% greater CSA 6Kft - EMBARQ 6Kft - EMBARQ 6Kft - EMBARQ TRADITIONAL 12Kft SERVICE AREA 6Kft - EMBARQ 6Kft - EMBARQ 6Kft - EMBARQTuesday, April 3, 2012 ©Rim Semiconductor Company Page 42 Confidential and Proprietary – Do Not Distribute
    43. 43. understanding your customer Lower Cost of Video over Copper enabling cost-effective broadband over copper for new integrated Video Services • 6Kft reach reduces network deployment cost 56% • 57% reduction in new RTs accelerates time to market • 26Mb/s @ 6Kft enables 40% higher coverage than VDSL2 • 26Mb/s minimizes OPEX by minimizing truck-rolls for provisioning troubleTuesday, April 3, 2012 ©Rim Semiconductor Company Page 43 Confidential and Proprietary – Do Not Distribute
    44. 44. understanding your customer Delivering Crucial Carrier Value  Ensures Cable-Competitive Services  Leapfrogs Cable Services  Delivers Lowest Network Cost  Minimizes Operating Costs  Accelerates time-to-market  Enables Higher ROI than CableTuesday, April 3, 2012 ©Rim Semiconductor Company Page 44 Confidential and Proprietary – Do Not Distribute
    45. 45. Delivering Embarq • Logical evolution of FPGA to ASSP • Better for you, better for us • Build your design optimization into ASSP • Faster Time-to-Market • HelloSoft qualifications - deep in xDSL - proven 100Mb/s silicon - deep in QOS - deep in EMSTuesday, April 3, 2012 ©Rim Semiconductor Company Page 45 Confidential and Proprietary – Do Not Distribute
    46. 46. Development Schedule  FPGA version scheduled for release January 2006  Two customers will be supported  ASSP version available in first half 2006  Ordering for Part # FPGA30 includes: 1) two circuit boards ( one for the CPE, one for the DSLAM) with Embarq technology present in FPGA form. 2) InSite software application for testing and simulating various loop conditions 3) Written Test Plan 4) Product Documentation 5) Dedicated Field Application EngineerTuesday, April 3, 2012 ©Rim Semiconductor Company Page 46 Confidential and Proprietary – Do Not Distribute
    47. 47. Contact  Brad Ketch, President & CEO of Rim Semiconductor is visiting China soon and would like to schedule talks with VoDSL & IP-DSLAM product managers at Huawei  Should you wish to meet with Mr. Ketch, please arrange schedules with his secretary, Ms Laurie Evans at 503-257-6700, or email at levans@rimsemi.com  For immediate questions, contact Richard Hurn, Marketing Director at 503-286-0894, email rhurn@rimsemi.com  Website www.rimsemi.com Thank You for viewing!Tuesday, April 3, 2012 ©Rim Semiconductor Company Page 47 Confidential and Proprietary – Do Not Distribute
    48. 48. The Video-Tailored Solution • Fresh thinking delivers DSL tailored for the Video Network SHORT FRAMES = Inherent SNR advantage, 50% Longer Reach, 62% Lower CAPEX DYNAMIC SNR = Higher Thruput, Less Latency DSLAM NO DSLAM TRAINING = Higher Thruput, Less Latency CPE SMART BANDPLAN = 20% More Video Download 10 BINS vs 4096 = Less Processing, Lower Latency, Smaller & Cheaper CPE DNSTREAM DNSTREAM DNSTREAM PERFORMANCE TAILORED UPSTREAM UPSTREAM UPSTREAM FOR THE VIDEO NETWORK PERFORMANCE TAILORED FOR YOUR CUSTOMERTuesday, April 3, 2012 ©Rim Semiconductor Company Page 48 Confidential and Proprietary – Do Not Distribute
    49. 49. DSL Technical Advantage Delivering the • If you were designing a video EMBARQ access network bandwidth today, would you design around VDSL2 VDSL2? 26Mbps BARRIER SPECTRUM MANAGEMENT VDSL 50% MORE RTs, 4Kft REACH ADSL2+ PAIR BONDING ADSL2 ADSL SERVE ONLY 20Mbps SDSL WORKAROUNDS HDSL time 1999 2005 2006 VDSL2 IS A COBBLED SOLUTION BASED ON INHERENTLY DEADEND LIMITATIONSTuesday, April 3, 2012 ©Rim Semiconductor Company Page 49 Confidential and Proprietary – Do Not Distribute

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