Next Generation Architecture s Readiness for the Next Generation Broadband
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1 Next Generation Architecture s Readiness for the Next Generation Broadband
2 Typical PON Architectures OLT CO/HE ODN ONT P2P Ethernet In-The-First Mile P2P Splitting In the CO/HE CO/HE Optical Line Termination Single Coupler FDH - Cross Connect 1x32 Coupler CO/HE FDH - Fiber Service Area Interface Centralized Splitting Optical Line Termination CO/HE Single Coupler 1x32 Coupler Access Terminal Distributed Splitting Optical Line Termination Distributed Couplers 1x8 Coupler 1x4 Coupler
3 Deployment Strategy P2P or s in the Central Office/Head-End Central Office Optical Line Termination 1 x 32 F2. 1xn optical splitter may be located in FDF line-up in the central office All fibers are run from CO/HE to subscriber premise resembles P2P Provides maximum bandwidth utilization and network flexibility Test and turn-up in the CO/HE and at the subscriber premise Requires a large amount of fibers in the CO/HE and the OSP Highest cable cost and CO/HE floor space
4 Deployment Strategy P2MP Centralized Splitting (Physical View) Central Office /Head-End Fiber Distribution Hub F2 Fiber Access Terminal Optical Line Termination F3 F1 1 x 32 Fiber Access Terminal Concept : All splitters are located w/in the FDH OSP locations Theory : Centralized splitting will maximize OLT utilization and may provide a single point of access for testing, turn-up and troubleshooting. Reality : Provides the best OLT utilization and flexibility in limited take rates, allows for easy craft access for troubleshooting, increases the cost of the distribution fiber, but allows for the migration of new PON technologies.
5 Deployment Strategy P2MP Distributed/Cascade Splitting (Physical View) Central Office /Head-End Optical Line Termination Fiber Distribution Hub 1 x 4 F2 Fiber Access Terminal 1 x 8.. F1 1 x 8. Concept : s are located in FDH and Access Terminal locations Theory : Cascading splitters in OSP will minimize the amount of distribution fiber that needs to be deployed to provide service. Reality : Cascaded splitters reduce distribution cable material costs but creates inefficient use of OLT PON Ports and may increase difficulty in migrating to other technologies.
6 PON Migration Techniques - Initial B-PON Deployment FDH 432 cabinet serving 360 Customers 83% take rate 13 actual splitters used 24- Slot 13 splitter slots used Chassis 72-Port Patch Panels
7 Initial B-PON to Any-PON Migration 10 Customers upgraded to new service Single Any-PON splitter installed 10 New ONTs placed 24- Slot Chassis 72-Port Patch Panels
8 Transitioning More Subs to Any-PON 110 customers upgraded to new service 110 new ONTs placed 4 Any-PON splitters 17 total splitter slots used 24- Slot Chassis 72-Port Patch Panels
9 PON Migration Techniques Initial BPON Installation Techniques Central Office Head-End BPON OLT Feeder Fiber (F 1 ) Fiber Distribution Hub 72-Port Panel Distribution Fiber (F 2 ) Fiber Access Terminal Location 1 Fiber Access Terminal OSP Feeder and Distribution Fiber, and Optical s will be terminated at different secure areas inside the FDH The technicians will patch splitter output directly to the distribution fiber ports to access customers
10 PON Migration Techniques Initial BPON to Any-PON Migration Techniques Central Office Head-End BPON OLT Feeder Fiber (F 1 ) Fiber Distribution Hub 72-Port Panel Distribution Fiber (F 2 ) Fiber Access Terminal GPON OLT Feeder Fiber (F 1 ) Location 1 Location n Fiber Access Terminal GPON System is Installed within the Central Office or Head-End. The technicians will place the GPON into the FDH and patch the Feeder F1 Fiber to the GPON OLT Port and to the Input of the splitter placed into the location that will be identified for GPON Migration.
11 PON Migration Techniques Initial BPON to Any-PON Migration Techniques Central Office Head-End BPON OLT Feeder Fiber (F 1 ) Fiber Distribution Hub 72-Port Panel Distribution Fiber (F 2 ) Fiber Access Terminal GPON OLT Feeder Fiber (F 1 ) Location 1 Location n Fiber Access Terminal Test Outputs The technicians will test the GPON splitter in preparation to migrate to GPON. The technicians will remove the BPON Jumpers from the patch panel identified as migrating to GPON.
12 PON Migration Techniques Final BPON to Any-PON Migration Techniques Central Office Head-End BPON OLT Feeder Fiber (F 1 ) Fiber Distribution Hub 72-Port Panel Distribution Fiber (F 2 ) Fiber Access Terminal GPON OLT Feeder Fiber (F 1 ) Location 1 Location n Fiber Access Terminal Technicians can now start placing the GPON Outputs to the customers requiring GPON service.
13 PON Migration Techniques PON MP to EFM Installation Techniques Central Office Head-End BPON OLT Feeder Fiber (F 1 ) Fiber Distribution Hub 72-Port Panel Distribution Fiber (F 2 ) Fiber Access Terminal EFM Switch Location 1 Technicians will install an EFM Switch within the CO/HE.
14 PON Migration Techniques PON MP to EFM Installation Techniques Central Office Head-End BPON OLT Feeder Fiber (F 1 ) Fiber Distribution Hub 72-Port Panel Distribution Fiber (F 2 ) Fiber Access Terminal EFM Switch Location 1 BPON to EFM Migration will require that there is adequate Feeder F1 fiber placed from the CO/HE to the FDH Cabinet. The number of Feeder F1 Fibers needed may exceed the FDH Cabinet, The Aerial Plant or the Duct Bank Capabilities, therefore new Feeder F1 Cable may need to be installed.
15 PON Migration Key Findings Gigabit PON or GPON is only one the Next Generation of PON Electronics Currently Being Introduced to the Marketplace GPON will Not be the Final Technology Deployed, The Design Needs Include to Accommodate Flexibility for Network Migrations and Beyond (P2P vs. P2MP/EFM vs. WDM PON) In Theory, Passive Connectivity Infrastructure Should be Agnostic to the Service Delivery Technology In Concept, The Design Can Assist in a Smoother Transition Between Technologies by Recognizing all of the Practical Considerations and their Topology Solutions
16 EFM Migration Key Findings EMF Migration May Need to be a Phased Approach The First Step will be to Access the Type of Plant to Build, i.e. Aerial vs. Buried In Theory, EFM offers Highest Bandwidth Capacity and Adaptability with Port-by-Port Turn-up of Subscribers from CO/HE In Concept, The Design will need to follow the following Topology Solutions: For GPON Migration: 1 fiber for every 32 subscribers, 6 fibers for every 192 subscribers, or 60 fibers for every 1,920 subscribers from the CO/HE to the FDH For EFM Migration: 1 fiber for every subscriber - For the 1,920 subscribers, the First Step will require careful planning and design
17 PON Standards Summary FSAN may become the Dominant PON protocol Within FSAN, GPON may become the dominant protocol for mass deployment Future FSAN PON Development to Include WDM PON GPON (G.984) improvements over BPON (G.983)/EPON (IEEE 802.3ah) Efficiency: dual mode support of ATM as well as Ethernet frames Scalability: more economical means of achieving high speeds Lower costs because of relax timing requirements Supports TDM and Ethernet Interfaces at the OLT GPON Values Supports TDM Voice and Video Overlay Today Platform and Interfaces to an all IP Optical Network Architecture that will migrate with the Service Provider, without requiring forklift upgrades to the network.
18 Other Migration Considerations PON/EFM Migration Oversize the F1 or Feeder Portion to Accommodate s Dedicated to PON Migration Techniques and to Account for EFM and Future PON Technology Requirements May require larger F1 feeder counts or availability in FDH SC APC Connectors and Adapter Use will Provide an Architecture Flexible to Meet Future Technology Standards xpon or EFM may not require APC/SC connectors, however future technology standards for ORL in single fiber architectures may be required. Therefore, SC APC Adapters will ensure a secure and future proofed network.
19 Key to Migration Techniques - FDH n The Fiber Distribution Hub Convenient Access to the Rear of Termination Shelf for Cleaning/ Maintenance Access for Future Additions Future Distribution Cables Future Patch Panels Future Modules Additional pass through panel provided standard for EFM, xdsl and Active Ethernet Delivery
20 Summary Architectural and Topological Choices Driven By Initial and target take rates Overbuild, Greenfield or Migration Focus Active Electronic Requirements Cost Network Efficiency and Growth Strategy Critical underpinnings for the design as well as the business case Key to cost-effective use of splitters and electronics Design must take a System Approach To coordinate all elements To achieve the lowest overall cost Understand the impact of all passive/active elements to deploy the most profitable solution!
21 Open Access Solution Discussion
22 Open Access Concepts Open Access to Multiple-Operating Companies, Multiple Network Companies, and Multiple-Service Providers Model OpCo Operating Company Active Components Only RSP Retail Service Provider Applications 3-Play Voice/Data/Video NetCo Network Company Passive Components Only Optical Distribution Network OpCo/NetCo RSP RSP RSP RSP OpCo/NetCo RSP RSP RSP OpCo NetCo RSP RSP RSP OpCo OpCo NetCo
23 Splitting of the OpCo and NetCo Is it possible to split the OpCo and NetCo functions technically in a clean manner? YES If yes, what would the OpCo own, and what would the NetCo own?
24 Splitting of the OpCo and NetCo Continued In the event that there are multiple OpCos (and one single NetCo), will your answers be different? YES (Somewhat) Central Office #1 East Feeder Cable 2 1x32 s Central Office #2 West Feeder Cable ADC Fiber Distribution Hub (FDH)
25 FTTx plant / ODN Specifications Continued How much fiber to lay between CO and FDH? 1x32 PON Techniques 6 Fibers for every 192 Subscribers 1x64 PON Techniques 3 Fibers for every 192 Subscribers 1x16 PON Techniques 12 Fibers for every 192 Subscribers xdsl/active Ethernet - 2 Fibers for every active device (However, there may be sever penalties for reach and rate per subscriber.) How much slack cable should we plan for and,. where to place them? Plan for an additional 3 to 30 meters How to determine the standard lengths for slack cables that are suitable for the Network? This depends upon placement Aerial, FDH, Below Ground
26 Interconnection and Open Access at the Passive and Active Layers How is interconnection carried out in the passive layer? Multiple s Multiple Inputs Multiple Feeder and Distribution Fiber How to design the passive network to enable ease of interconnection at the active layer? Multiple s Multiple Inputs Multiple Feeder and Distribution Fiber IP enabled software
27 Open Access Concepts Open Access to Multiple-Operating Companies, Multiple Network Companies, and Multiple-Service Providers Model: Open Access to All OpCo Multiple Operating Companies Active Components Only RSP Multiple Retail Service Providers Applications 3-Play Voice/Data/Video NetCo Multiple Network Companies OSP & Passive Components Only Optical Distribution Network 5 RSP RSP RSP OpCo OpCo NetCo NetCo
28 Open Access Architecture for FTTP Deployments Primary Operating Company 1 OpCo.1 OLT NetCo. 1 Feeder Fiber (F 1 ) Fiber Distribution Hub 72-Port Panel Distribution Fiber (F 2 ) Fiber Access Terminal OpCo.2 OLT NetCo. 2 Feeder Fiber (F 1 ) OpCo.1 NetCo. 1 NetCo. 2 Primary Operating Company 2 Op.2 Fiber Access Terminal OSP feeder cables and Optical s will be terminated at different secure areas inside the FDH The technicians will patch Service Provider s splitters directly to access customers
29 ADC Contacts Product Management Trevor Smith (OSP & WDM s) Pat Thompson (Frames) Mike Hoppe (Drop Cables) Systems Engineers Dedicated to OmniReach Patrick Sims Tel: Doug Ellens Tel: Technical Support Call , x
30 Questions?
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