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  1. 1. FTTP / RFoG / RFPON Architecture & Implementation
  2. 2. Strategic Product Focus Technology Generations Backbone Regulatory Network FTTP HFC Fiber Deep Fiber Depth Support R&D Focus
  3. 3. RFoG Vs. IPTV <ul><li>Why Not IPTV? </li></ul><ul><li>Standards are not fully developed </li></ul><ul><li>Headend equipment is expensive and subject to change as the standards evolve </li></ul><ul><li>New MPEG 4 set top boxes needed in the Customer’s premise </li></ul><ul><li>“ Back office” support does not yet exist at the cableco </li></ul><ul><li>Workforce has little if any experience in the IP domain </li></ul><ul><li>Why RFoG? </li></ul><ul><li>Uses the headend technology already in place </li></ul><ul><li>Uses the set top boxes already in place </li></ul><ul><li>Uses the DOCSIS platforms already in place and supports DOCSIS 3 </li></ul><ul><li>Simply replaces what would be the traditional RF node </li></ul><ul><li>No “back office” changes are needed. “Business as usual” </li></ul><ul><li>Little workforce training is needed </li></ul>
  4. 4. <ul><li>Return can be transmitted at 1310 or 1610* nm </li></ul><ul><ul><li>1310 nm is a lower cost solution today </li></ul></ul><ul><ul><li>1610 nm is the GPON friendly solution </li></ul></ul><ul><ul><ul><li>Compatible with PON standards </li></ul></ul></ul><ul><ul><ul><ul><li>PON standards support 1490 nm downstream, 1310 nm upstream </li></ul></ul></ul></ul>RFoG Spectrum Analog TV Digital TV HSD/VoD HSD/VoD DOWNSTREAM @ 1550 nm UPSTREAM @ 1610 nm 54 MHz 550 MHz 1 GHz 5 42 MHz
  5. 5. RFoG Reference Design Fiber all the way to the home Broadcast Tx EDFA Analog RPR RFPON CPE Splitter WDM 1550 nm 1610 or 1310 nm 10-20 km
  6. 6. Evolutionary FTTx Headend ring New service area VHUB can be optimally placed inside neighborhood or business park
  7. 7. RFoG Node Configuration <ul><li>24 dBm output EDFA (21 dBm x2) </li></ul><ul><li>Integrated downstream split / upstream 1310 (or 1610) filter </li></ul><ul><li>Dual Quad channel analog return Rx </li></ul><ul><li>Digital upstream to the headend </li></ul><ul><ul><li>Can be up to 80 KM HE to Home </li></ul></ul><ul><ul><li>Can mux up to 15 CWDM RFoG nodes on a single fiber or 40 DWDM </li></ul></ul>
  8. 8. Micro-node Specs
  9. 9. Simple RFoG Design <ul><li>Same Downstream Tx as HFC nodes </li></ul><ul><li>Same Upstream Rx as HFC nodes </li></ul><ul><li>RFoG node replaces traditional HFC node </li></ul><ul><li>All parts are available for shipment today </li></ul><ul><li>Same Upstream Tx used in HFC nodes </li></ul><ul><li>CPE device takes in fiber, output is “F” </li></ul><ul><ul><li>Indoor or side of house solutions </li></ul></ul><ul><ul><li>Two-way CPE </li></ul></ul><ul><ul><ul><li>Broadband downstream receiver </li></ul></ul></ul><ul><ul><ul><li>Low cost return laser @ 1310 or 1610nm </li></ul></ul></ul><ul><li>Interfaces seamlessly with </li></ul><ul><ul><li>Installed STBs </li></ul></ul><ul><ul><li>Installed cable modems </li></ul></ul><ul><ul><li>Installed eMTAs </li></ul></ul>
  10. 10. Hybrid BC/NC RFoG Design <ul><li>Add NC Tx for up to 300 MHz of dedicated bandwidth </li></ul><ul><li>Share 1550 BC Tx with 16 (or more) RFoG/HFC nodes </li></ul>
  11. 11. RFoG Fiber Management <ul><li>Options exist from many respected manufactures </li></ul><ul><li>Fiber distribution can be organized in a star or distributed star architecture </li></ul><ul><li>Contact your distributor for the best solutions for your application </li></ul>
  12. 12. RFoG Capital Expense HFC / FD / RFoG Cost per HP (0% take rate) HFC / FD / RFoG Cost per HP (65% take rate) <ul><li>Population Density: </li></ul><ul><ul><li>Suburban areas with ~80 HHP/mile </li></ul></ul><ul><li>Infrastructure vs. Total Cost: </li></ul><ul><ul><li>Infrastructure and total cost for HFC N+4 and N+0 stay constant at different take out rate (except for variable cost and some cost of drop install if not included) </li></ul></ul><ul><ul><li>Total costs for RFoG increase with increase in take out rate (due to CPE cost) </li></ul></ul>
  13. 13. RFoG Capital Expense High, Mid & Low Density Cost per HP (0% take rate) High, Mid & Low Density Cost per HP (65% take rate) <ul><li>Population Density: </li></ul><ul><ul><li>Highly urbanized areas with >200 HHP/mile </li></ul></ul><ul><ul><li>Average urban areas with approximately 80 HHP/mile </li></ul></ul><ul><ul><li>Rural areas with approximately 30 HHP/mile. </li></ul></ul><ul><li>Infrastructure vs. Total Cost: </li></ul><ul><ul><li>RFoG (FTTH) infrastructure cost < HFC cost even for average population density; at low premium for high population density areas. </li></ul></ul><ul><ul><li>Total RFoG cost with CPE devices > HFC cost except for rural areas. </li></ul></ul><ul><ul><li>Cost effective scalability of RFoG to RFPON (future addition of PON). </li></ul></ul>
  14. 14. RFoG Limitations <ul><li>Downstream reach traditionally limited by EDFA output, splitter loss, CPE input requirements </li></ul><ul><li>Upstream reach limited by CPE laser, splitter loss, receiver input requirements, and channel loading </li></ul><ul><ul><li>Upstream laser typically a low-cost, low-power unit </li></ul></ul><ul><li>Fiber count </li></ul><ul><li>‘ Just cable TV’ services </li></ul><ul><ul><li>What happens next when MSOs need to provide even higher bandwidth services? </li></ul></ul>The solution: RFPON – next-generation RFoG
  15. 15. What is RFPON? <ul><li>RFPON: Next-generation RFoG </li></ul><ul><ul><li>RFoG with the ability to seamlessly add GEPON capabilities </li></ul></ul><ul><li>Simple, cost-effective way for MSOs to deploy FTTP </li></ul><ul><ul><li>Same services as traditional HFC </li></ul></ul><ul><ul><li>Same technology as traditional HFC </li></ul></ul><ul><ul><li>Same back-office provisioning systems as DOCSIS system </li></ul></ul><ul><li>Ideal for: </li></ul><ul><ul><li>New housing developments where FTTP is a must </li></ul></ul><ul><ul><li>Low density, rural areas of the franchise </li></ul></ul><ul><li>Can serve homes, businesses and MDUs </li></ul><ul><li>SCTE standards initiative in process </li></ul>
  16. 16. RFPON Fiber all the way to the home 1550 nm 1610 or 1310 nm Choice of CWDM’s RFPON CPE Splitter Broadcast Tx EDFA Digital RPR WDM 1550 nm RFPON VHub™ >60 km
  17. 17. Evolutionary FTTP DOCSIS ® & GEPON <ul><li>RFPON VHub™ providing video, DOCSIS data and voice services </li></ul><ul><ul><li>PLUS capacity for 2 PON modules </li></ul></ul><ul><ul><li>GEPON compliant </li></ul></ul><ul><ul><li>1490 nm downstream, 1310 nm upstream </li></ul></ul><ul><li>Up to 256 Video+DOCSIS customers </li></ul><ul><ul><li>PLUS up to 128 (2x64) GEPON customers </li></ul></ul><ul><li>Each GEPON module supports </li></ul><ul><ul><li>1 Gbps bandwidth </li></ul></ul><ul><ul><li>Up to 64 customers </li></ul></ul><ul><ul><li>DOCSIS back-office provisioning </li></ul></ul><ul><ul><ul><li>One system for both solutions </li></ul></ul></ul><ul><ul><ul><li>No operator re-training </li></ul></ul></ul>Node PON™ Module
  18. 18. Simple RFPON Design <ul><li>Add GbE switch connected to the Internet backbone </li></ul><ul><li>GEPON interface designed to integrate with DOCSIS back office </li></ul><ul><li>Add GEPON OLTs to the node to provide shared GbE services </li></ul><ul><li>Replace the OP4138 with OR4168 receiver / filter </li></ul><ul><li>RFoG continues to operate as before for your Customers </li></ul><ul><li>Replace the RFoG CPE with a RFPON compatible unit to provide Customer with shared GbE service </li></ul>
  19. 19. GEPON Module <ul><li>Compatible with HFC or Fiber Deep architectures </li></ul><ul><li>Serves up to 64 customers using standard PON CPE devices </li></ul><ul><li>Bandwidth rate limiting from 1 Mbps to 1000 Mbps in 1Mbps steps </li></ul><ul><li>Compatible with standard GigE switch at head-end </li></ul><ul><li>Compatible with Aurora digital return and NI3030E </li></ul>
  20. 20. Cost Comparison (Today) <ul><li>$15/sub </li></ul><ul><ul><li>256 kbps/sub forward </li></ul></ul><ul><ul><li>180 kbps/sub reverse </li></ul></ul><ul><li>$9K/600 subs </li></ul><ul><ul><li>4x38 Mbps forward for 152 Mbps total </li></ul></ul><ul><ul><li>4x27 Mbps reverse for 108 Mbps total </li></ul></ul><ul><li>$23/sub </li></ul><ul><ul><li>Forward & Reverse (symmetrical) </li></ul></ul><ul><ul><ul><li>10 Mbps/sub for GEPON </li></ul></ul></ul><ul><ul><li>Net of overhead </li></ul></ul><ul><li>$1,500/64 subs </li></ul><ul><ul><li>610 Mbps (net of overhead) or 200 Mbps total; symmetrical </li></ul></ul>DOCSIS 3.0 Alternative Technologies
  21. 21. Cost Comparison (Future?) <ul><li>$7/sub </li></ul><ul><ul><li>256 kbps/sub forward </li></ul></ul><ul><ul><li>180 kbps/sub reverse </li></ul></ul><ul><li>$4K/600 subs </li></ul><ul><ul><li>4x38 Mbps forward for 152 Mbps total </li></ul></ul><ul><ul><li>4x27 Mbps reverse for 108 Mbps total </li></ul></ul><ul><li>$16/sub </li></ul><ul><ul><li>Forward & Reverse (symmetrical) </li></ul></ul><ul><ul><ul><li>10 Mbps/sub for GEPON or 3 Mbps initially for BitCoax </li></ul></ul></ul><ul><ul><li>Net of overhead </li></ul></ul><ul><li>$1,000/64 subs </li></ul><ul><ul><li>610 Mbps (net of overhead) or 200 Mbps total; symmetrical </li></ul></ul>DOCSIS 3.0 Alternative Technologies
  22. 22. CPE Cost Comparison <ul><li>>$80 /sub today for: </li></ul><ul><ul><li>152 Mbps/sub forward </li></ul></ul><ul><ul><li>108 Mbps/sub reverse </li></ul></ul><ul><li>$50 /sub in future </li></ul><ul><li>Total : </li></ul><ul><ul><li>Today: $95 /sub for 256 kbps/180 kbps forward/reverse service </li></ul></ul><ul><ul><li>In Future: $57 /sub for 256 kbps/180 kbps forward/reverse service </li></ul></ul><ul><li>Today: $150 /sub for GEPON </li></ul><ul><ul><li>Forward & Reverse: 610 Mbps/sub for GEPON (net of overhead) </li></ul></ul><ul><li>$100 /sub for GEPON </li></ul><ul><ul><li>610 Mbps forward or 200 Mbps total; symmetrical </li></ul></ul><ul><li>Total: </li></ul><ul><ul><li>Today: $173 /sub for 10 Mbps symmetrical </li></ul></ul><ul><ul><li>In Future: $116 /sub for 10 Mbps symmetrical </li></ul></ul>DOCSIS 3.0 Alternative Technologies DOCSIS 3.0 GEPON Today $0.37 /sub/kbps $0.017 /sub/kbps Future $0.22 /sub/kbps $0.012 /sub/kbps
  23. 23. In Summary <ul><li>RFoG’s cost is more than HFC in high take rate / high density locations </li></ul><ul><li>Can be lower CapEx in low take rate / low density applications </li></ul><ul><li>Does not require specialized technicians </li></ul><ul><li>Does not require “back office” changes </li></ul><ul><li>RFPON is the next-generation RFoG </li></ul><ul><ul><li>Extends reach / Reduces cost / Reduces fiber count </li></ul></ul><ul><ul><li>Doubles upstream bandwidth (compared to DOCSIS 3.0) </li></ul></ul><ul><li>Seamless evolution to include PON functionality </li></ul><ul><ul><li>Standards-based GEPON </li></ul></ul><ul><ul><li>Up to 64 users per GEPON module </li></ul></ul><ul><ul><li>Integrated with deployed DOCSIS provisioning system </li></ul></ul>
  24. 24. Existing, Deployed, Working