RFoG Commercial Solutions SCTE DCAV Meeting RFoG for Commercial Solutions • RFoG Technology Advantages • RFoG Economic Factors • RFoG Architecture for Commercial Services • RFoG Expansion to GEPON for Commercial Services • RFoG/GEPON Components PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 2 Comprehensive FTTx Solutions PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 3 RFoG Advantages • Lowers OPEX annual, up to 90% less than HFC – Reduce FCC testing, eliminate OSP powering – Corrosion eliminated, less batteries and get 8-10 hours backup time • Enables additional services – Hybrid RF PON – RFoG & EPON • WiFi Hotspots & cellular towers served by the same fiber plant • Small Medium Enterprise - multiple T1s of voice traffic, plus GbE of data services • Takes fiber to the subscriber home/or business building – Improved CNR – Increased CMTS Uptime – Improved downstream bandwidth PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 4 RFoG Advantages Continued • Preserves investments plus no changes to business/service processes – Uses existing CMTS, laser transmitters, return path receivers, DOCSIS modems – Uses current business processes and procedures for all services – Transparent to DOCSIS 1.0 through 3.0 • Supports maximum DOCSIS 3.0 cable modem data rate throughput • Seamless upgrade for any customer to get GE-PON based IP services – Same network architecture – Use additional wavelengths for PON overlay PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 5 MSO Challenges • MSOs need better access network performance to compete – Competition – MSO downstream bandwidth is adequate (can expand to 1 GHz) – MSO upstream is limited by HFC • Ingress noise robs bandwidth • Inherently more noise in system limits picture quality and data transmission rates • DOCSIS 3 implementation with 64QAM is questionable, particularly bonded 64QAM – Invest in a Future Proof Architecture • RFoG / MicroNode addresses the challenge PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 6 Traditional HFC Architecture Hub Downstream Video Feed Optical Distribution Network (6 fibers) Nodes of 256 - 1000 homes with 4 coax trunks Coax with RF amplifiers Forward Path 1550 or 1310nm Laser Transmitter EDFA Traditional Node Return Path Receiver Return Path 1310 nm Customer Premise Requires separate fibers for forward and return paths Every node requires a return path receiver in the hub Doesn’t provide upstream ingress or impulse noise suppression All node users share the 4 upstream channels used for cable modem data service, voice traffic, etc. PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 7 RFoG Operation Headend Voice Network Video, Voice & Data – Combined Signal Outside Plant Customer Premises Laser Transmitter 1550 nm Downstream 1550 nm Downstream MicroNode EDFA WDM IP Application Switch CMTS Return Path Receiver Cable Modem 1x32 Splitter 1310 nm or 1610nm Upstream STB 1310 nm or 1610nm Upstream Single fiber supports both forward and return path One return path receiver can be shared by 32 MicroNode transceivers MicroNode operates upstream in “Burst Mode” Upstream laser is “on” only during an RF burst from the cable modem or STB Ingress and impulse noise is substantially reduced or eliminated entirely Allows recovery of lower 10MHz of upstream spectrum PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 8 RFoG MicroNode Integrated WDM in unit. SC/APC Connector 1550 nm 1310 nm Single Mode Fiber RF Amp RF Diplex Filter F-Connector RF Detector DC Power Supply FP Burst-mode Transmitter PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 9 Burst Mode Operation 1. CMTS schedules the Cable Modem or STB to transmit data 3. MicroNode senses burst; turns on laser for duration of data 2. Cable modem/STB sends burst of data Cable Modem Laser Transmitter EDFA WDM Video/RF Feed RPR CMTS Core Network 1 1550nm Splitter n MicroNode RPR receives data; sends it to CMTS 5. PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc Set Top Box (STB) MicroNode 1310nm 4. MicroNode CMTS proceeds to next scheduled device 10 MicroNode Range/Density Rx Level = -6dBm CM CMTS DS Feed Return Receiver Laser Transmitter Tap WDM 1xn Splitter EDFA Unterminated Endpoints STB Tx Level = +18dBm 20 Km MicroNode • 20Km reach with 32 splits requires 23dB optical budget • CommScope achieves this with a low-noise receiver, allowing lowpower, low-cost EDFAs • Competitive designs cost 37% more for the EDFA component PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 11 Bandwidth Upstream Improvement MicroNode usable spectrum upstream = 37MHz HFC typical spectrum upstream 27MHz 0 5 10 15 20 25 30 35 MHz 40 42 RFoG and MicroNode have 37% more usable RF upstream PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 12 Bandwidth Downstream Improvement RFoG MicroNode downstream spectrum = 50-1100 MHz HFC typical spectrum downstream 50-870MHz 0 50 100 200 300 400 500 600 700 800 1000 1100 MHz 870 RFoG MicroNodes have 28% more downstream BW PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 13 MicroNode SNR CM CMTS DS Feed Return Receiver Laser Transmitter Tap Unterminated Endpoints Node Splitter (sums ingress noise) EDFA HFC SNR = 26dB Downstream Better Distance / Density Low Noise Receiver 20Km range with 32 splits Bandwidth to 1GHz STB Upstream - Higher SNR than HFC Recovers 10MHz Lost to Ingress Noise Enables 64QAM upstream channel bonding (27Mbps 108Mbps) CM CMTS DS Feed Return Receiver Laser Transmitter EDFA RFoG SNR = 34dB PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc Tap WDM 1xn Splitter Unterminated Endpoints STB MicroNode 14 RFoG Economics PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 15 RFoG Costs vs. HFC • • • PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc RFoG at Parity to HFC Re-build or New-build Higher 70 60 50 40 New-build or Rebuild all… Complete Rebuild 30 20 Lower • At some combination of density, (homes per mile), and penetration rates, RFoG and HFC will cost the same – see curve/line The position of the curve rises on the chart as headend optics and field active optics get cheaper, meaning RFoG is competitive at higher densities and higher penetrations. The nature of the curve varies by equipment supplier and by operator. The curve represents capital costs only, since we all know RFoG operational costs are lower than HFC. Capital costs are split between construction and subscriber. Density Homes per Mile • 10 0 Lower Higher Services Penetration 16 RFoG Construction Capital • • • The mix of construction capital and subscriber capital are dependent, again, on homes per mile and penetration rate, which is fixed in this example. The “Installed Subscriber Share of Total Cost” approaches 40% in higher density areas. If the construction department was funded based on miles to build, they could build 50% more miles on the same funds in this example. RFoG presents significant advantages to operators overbuilding or with newbuilds since the capital costs for subscribers happen after the plant construction. PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc With Strand Construction 70% 60% 50% Percent • Subscriber Share of Equipment 40% Installed Subscriber Share of Total Cost Equipment Share of Total 30% 20% 10% 0% 0 50 100 Homes per Mile 17 RFoG Costs at Parity to HFC Upgrades • RFoG at Parity to HFC Upgrade 70 Higher 60 50 Rebuild all plant items 40 Replace Amps, Taps and Coax 30 Replace Amps and Taps 20 Replace Amps and Spacing Upgrade Amp Modules Lower • The familiar green curve in the chart represents the parity point between the costs of RFoG rebuild and HFC rebuild or complete upgrade. The other curves represent decreasing complexity upgrades, with simple amplifier module replacement as the easiest upgrade. If not today, at some point in the future the cost reductions in Lasers, EDFAs, nodes, taps and NIUs will make RFoG competitive to some levels of upgrades, such as coax, amp, tap and drop replacement. Density Homes per Mile • 10 0 Services Penetration PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 18 Tiered Business Services PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 19 FTTH Fiber Distribution Alternatives • Distributed Tap Architecture – Eight 4-port taps cascaded along one fiber – Accommodates 32 homes per fiber 32 Home Area Tapped Fiber Architecture Tap#1 Tap Tap Tap Tap Tap#2 Tap#3 Tap Tap #1 #2 #3 Tap Tap Tap#4 ... . 1X32 Tap #8 Tap Tap #8 #4 • Distributed Splitter Architecture – Eight 4-port splitters each served by own fiber from an 8-way splitter – 32 homes served by combination of splitters and increased fiber use • Centralized Splitter requires one fiber per home connected .? . ?. Subscriber Subscriber Drop Drop Subscriber Subscriber Location Location 1x8 Tap 1x8 Splitter Splitter Tap#1 Splitter Tap #1 -? -?? - 1x4 1x4 Tap Splitter Splitter NIU NIU 1x4 1x4 Tap Splitter Splitter 1x4 1x4 Tap Splitter Splitter 1x4 1x4 Tap Splitter Splitter NIU NIU 1X32 32 Home Area PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc Distributed Splitter Architecture 20 Distributed Architectures for Expansion • Distributed architectures use less fiber for RFoG services, leaving room for additional fiber for other uses • Tap or splitter locations become access points for additional services. • Mixed service areas including residential and commercial customers can use the same infrastructure for both types of customers. • Commercial applications justify RFoG deployment because of greater business services revenue. • The RFoG network is in place to expand into residential areas for reasons of new growth, service demand or competition, such as defending your turf from a telco. PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 21 RFoG Commercial Deployment • A commercial deployment of RFoG with Distributed Taps as Access Points; • Commercial businesses line the street with residential areas surrounding them. • Access points provide connections to serve residential areas, for reasons of expansion or due to competition. Residential T T Residential T T Tap Fiber T Business Residential PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc Residential 22 Access Point Flexibility • All subscribers, whether residential or business, receive standard DOCSIS services, voice, data and video – broadcast, switched digital, HD, etc. • A drop cable with a single fiber can provide the RFoG services, connecting from the tap port to the NIU at the subscriber location Distribution Fiber Tap Location #1 Tap Location #2 4 Port 4 Port Tap Tap 4 Port 4Tap Port Tap Std Services NIU NIU PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 4Tap Port Std Services NIU NIU NIU 23 Access Point Flexibility • Tap location 2 has evolved to include a CWDM mux to extract a pair of wavelengths from a dark fiber to provide GigE services to a customer who also receives RFoG services. • The drop cable now must provide 3 fibers to support the two systems Distribution Fiber Tap Location #2 Tap Location #1 4 Port Port 4 Tap Tap CWDM CWDM l1 4 Port Port 4 Tap Tap 4 Port Tap l2 Multi Fiber Drop Std Services NIU NIU PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc Ethernet + Std Services Media Media Converter Converter NIU NIU NIU 24 GigE on the RFoG Infrastructure Dark Fiber in RFoG Networks is used to provide commercial service connections via CWDM Headend CWDM Media Converters 8-Wavelength CWDM Mux l1,2 l3,4 Media Converter Media Converter PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc l5,6 Media Converter l7,8 Media Converter Four pairs of wavelengths are available in each dark fiber in the Tap 25 Access Point Flexibility • • A PON system can be implemented in the same infrastructure using the access points, where a separate fiber carries the PON signals to the subscriber through the drop RFoG standards permit the overlay of PON and RFoG on the same fiber, with the use of additional WDM filters. In this approach, only one fiber would be needed in the drop. Distribution Fiber Tap Location #1 4 Port Port Tap Tap Location #2 CWDM CWDM l1 Tap Location #3 4 Port Port Tap 4 Port Port Tap l2 MultiFiber Drop Std Services NIU NIU PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc Ethernet + Std Services Media Media Converter Converter PON + Std Servuces NIU NIU ONT ONT NIU NIU 26 Access Point Flexibility • • Access points are unlimited in the ways additional fibers can be used for additional services. The last tap location identifies a fiber that is available to extend the network, provide a full DWDM selection of wavelengths, connect with other fiber networks, etc. Distribution Fiber Tap Location #1 Tap Location #2 4 Port Tap 4 Port Tap Tap Location #3 Tap Location #4 4 Port Tap 4 Port Tap CWDM l1 l2 MultiFiber Drop Std Services NIU PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc Fiber Extension Ethernet + Std Services Media Converter PON + Std Servuces NIU ONT NIU Std Services NIU 27 Access Point Features • For access points to provide the greatest flexibility in the RFoG network design, they should embody at least the following features: – Accommodate additional optical modules, such as CWDM, more splitters, such as 1x8 plus 1x4, or field couplers – Support multi-fiber drop cables – Support splicing and management of additional fibers and cables beyond what is required for the single fiber RFoG drop solution. • Pre-connectorized drop cables might limit expansion of services from the Access Point – Originally thought to save on field splicing, whose costs are dropping, and being replaced by mechanical connectors – Can’t support multi-fiber drop applications as discussed before. PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 28 Business Services Architecture Small/Medium Enterprise Headend Laser Tx RFoG NIU Packet Cable & Data EDFA Video Services Video Feeds CMTS RPR Core IP Network WDM Combiner Splitter VoIP Switch PON OLT IP Video Corporate Offices Business Parks Router / Switch T1 PON ONT PON ONT Ethernet PBX Cellular Backhaul PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 29 Business Service Opportunity • RFoG has evolved to being part of a tiered business service offering – <20 Mbps service – RFoG (lowest cost FTTB solution) – 100 Mbps service – EPON – Fractional Gbps service – 10G EPON • RFoG provides several performance and operational benefits to traditional HFC solutions – Elimination of Ingress Noise to enable upstream bonded DOCSIS 3.0 (515 MHz now useable) – Improved CNR & increased CMTS uptime – Reduced OPEX (Elimination of network powering, CLI Testing & Amp sweeps) PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 30 Optical Infrastructure Products PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 31 BOS RFoG Products – The Full RFoG Solution OSP Products Above Ground Closure Optical Splitters Below Grade Closure Head End Products Low Noise RPR Splitter Cabinet Subscriber Products Battery Backup Unit Laser Transmitter EDFA RFoG ONUs WDMs PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc Rack Mount Splitters ONU Enclosure 32 RFoG CPE Products • 1610 nm Return Path • Meets the developing SCTE RFoG standard • Delivers PON Compatible DOCSIS based services • Works on the same ODN with any PON that uses ITU compliant wavelengths (10G EPON, EPON, GPON) • 1610 nm Return Path w/ PON Pass Through • Adds Support for PON ONTS s – Integrated WDM provides fiber connectivity with ONT – WDM provides 1490/1310 nm PON wavelengths • Delivers PON and DOCSIS based services • 1310 nm Return Path • Meets the developing SCTE RFoG standard • Provides the lowest cost approach to deliver DOCSIS based services over a deep fiber RFoG infrastructure PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 33 MicroNode Performance Specs • Downstream – – – – – – Input wavelength: 1545 - 1565nm Input Power Range: +0 to –6 dBm RF Output @ 550MHz: +17dBmV/ch ±2dBmV Frequency response: 50 MHz - 1GHz Tilt: 5dB RF Performance: • CNR > 48 dB (–4 dBm input level) • CSO > 65 dB (0 dBm input level) • CTB > 65 dB (0 dBm input level) • Upstream – – – – – Wavelength: 1610 nm or 1310 nm Output Power: +3 dBm Input dynamic range: +15dBmV to +40dBmV Frequency response: 5 to 42MHz Laser Activation: <1.5 ms • SCTE compliant F connectors and cast housing. • PON Pass Through Port Loss: ≤1.0 dB, where applicable PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc • Standard Features • 1 GHz RF spectrum provides extended RF capacity. • Fast laser activation prevents degradation of upstream bursts. • RF-based AGC to provide constant RF output over optical input range. • High RF output with up-tilt reduces need for inhome amplifier. • Transparent return path allows use of existing CPE (All Cable Modems & Set-top Boxes). • Return transmission threshold suppresses noise from the subscriber’s residence (Full 5 – 42 MHz band is available). • Dedicated F port for powering • Die-cast aluminum housing protects electronics and provides excellent shielding. • Temperature Hardened 34 Network Interface Device (NID) • • • • • • Environmental and mechanical protection for RFoG ONU Integral fiber management/splice tray Inner cover to secure optics from subscribers Weather seal around door, and grommets for fiber & coax cables. Engineered to UL specifications for “Extreme Weatherability” Compatible with 1550/1310 and 1550/1610 ONUs PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 35 Battery Backup Unit • Small form factor indoor battery backup unit. • Works with NIU standard 12 Vdc power supply. • F connector input/output. • Utilizes standard disposable or rechargeable AA batteries. – Enables users to provide their own batteries. • Typically provides 8 hours of backup. • LED status indicators: – Improperly installed batteries – Battery life • Visual and Audible alarms when nearing end of battery life (audible alarm can be disabled by the subscriber). PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 36 BrightPath Optical Solutions (BOS) Outside Plant Optics PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 37 2000 Series Access Point – Distribution Side Distribution access separated from drop Fiber management for up to 36 fibers Optical module protected behind front plate Environmentally sealed Built-in splice sleeve holders Vertical or horizontal mounting hardware for aerial or underground installation Ground wire access and clamp Sealing grommets and grounding features accommodate a wide variety of fiber types, including loose tube and armored Branch cable option for business services or extensions From Node or Tap PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc To Tap 38 2000 Series Access Point –Drop Side No access of distribution side required by drop technician Bulkhead adapters for connectorized pigtail splicing Fiber splice sleeve and management Accommodates multiple cable types, including armored and flat drop Up to 8 drop cables To Subscriber A PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc To Subscriber B 39 Distributed Tap Sample Sample Tap Design (4 Port) 17 dB 17 dB 15 dB 13 dB 13 dB 10 dB -3.9 -4.9 -4.5 -3.0 -5.0 -4.4 13 dBm Launch Power Optical Level At ONU •Minimum Design input to ONU: PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc -5.0 dBm @ 1550 nm 40 Stackable Optical Module Enclosure • Hardened Optical Splitters – Full PON wavelength support – Planar devices: • 1x2, 1x4, 1x8 splitters – SC/APC & direct splice versions – Optical modules are stackable – Fit the Above Ground and Below Grade Enclosures PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 41 Above Ground Enclosure • Enclosure – Pedestal or aerial mounting – Separate distribution/drop access – Fiber management and bend control – Support multiple cable types/designs – 8 fiber drop and 1 fiber extension ports – Supports CWDM overlay. Optical Modules Enclosure PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 42 Below Grade Enclosure • Below grade splice enclosure for optical splitters: – Utilizes same optical modules as above ground closure • Supports fiber extension and up to 12 flat drop cables (8 drop armored). • Supports multiple drop and distribution cable sizes and types (flat, messenger, armored, all dielectric, etc.) • Available with up to 5 splice trays (24 splices per tray) • Integral cable termination and grounding. • Basket for storage and management of unused buffer tubes PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 43 Summary for RFoG Commercial Solutions • RFoG solutions present opportunities for operators to – build networks technically and economically competitive with HFC, – incorporate future-proof strategies in network design and equipment selection – yield a more-productive solution than HFC. • The advantages come from: – supporting commercial services that weren’t possible with HFC, – presenting capital expense options not possible with HFC. • The properly designed RFoG network with: – additional dark fiber and – use of flexible access points and – multi-fiber drops • will take the operator a long way into the future with the ability to migrate to GPON and GEPON commercial services and to support services unimagined today. PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 44 Thank you! Contact Fritz.Amt@CommScope.com (267)465-5215 Mobile PT-104190-EN PRIVATE AND CONFIDENTIAL © 2010 CommScope, Inc 45