Microtechnology Approaches for FTTP Mountain Connect Conference Keystone, Colorado June 26, 2019 Uptown Services, LLC Neil Shaw, Principal 7324 Cortez Lane Boulder, CO 80303 303-554-5854

About Uptown Specialized consulting firm serving municipal and electric utility clients Formed in 1997 Over 90 broadband clients ranging from 3,500 to 250,000 households Over 50 broadband feasibility studies since 1999 Over $390M in capital funds raised for municipal and utility broadband projects Feasibility Study, System Design and/or Engineering Engagements San Luis Valley REC Delta Montrose Electric Association Longmont Power & Communications City of Glenwood Springs Town of Estes Park City of Fort Collins Town of Superior FTTP Implementations City of Wilson, NC City of Beverly Hills, CA City of Hillsboro, OR June 25, 2019

Uptown Colorado clients August 19

Micro Technology - FTTP design factors Key design factors for micro building blocks Microduct wall thickness & outside diameter – bend radius / kinking Multiple microducts – oversheath versus loose bundle configurations Microfiber outside diameter – fill ratio for blowing in microduct Available and affordable construction methods - microtenching Economics Cost of one 2IN conduit versus multiple microduct pathways Enables the use of much smaller structures (peds, hand holes and vaults) Pulling multiple fibers versus blowing one fiber at a time Designing and documenting multiple pathways Installation Methods / Issues Overpulling in existing conduit can be cleaner with microducts Most microfiber should be blown into microduct Overpull and direct bury applications Managing microduct routing / termination at each structure Microtrench restoration complexities June 25, 2019

Outside Plant Challenges Beverly Hills Fiber Outside Plant Challenges 50% of the network is underground Very high cost path creation and restoration costs Underground Network Building Blocks Existing streetlight system – 2IN conduits and 17x30 boxes Overpull loose bundle of microducts in occupied conduits New vaults for splice points and network access points (NAPs) Lessons Learned Streetlight elbows significantly limit the options for overriding Limit the diameter of microduct to mitigate kinking in smaller vaults Loose bundle is more forgiving than an oversheath design Complete a pilot to validate the proposed building blocks & methods Clearly document final specifications and get sign off from contractor Microtrench restoration can be a big issue - policy and cost June 25, 2019

Beverly Hills Fiber – streetlight override Streetlight Pull Box & New Fiber Vault Streetlight Pull Box June 25, 2019 New Fiber Vault w/NAP

Beverly Hills Fiber – Futurepath Flex install Directional Drilling Operation Prepping Microduct Subout to Property Line June 25, 2019

Beverly Hills Fiber – Futurepath Flex install Proofing Microduct Final Fiber Vault Configuration June 25, 2019

Town of mountain village Mountain Village Project Profile Small hybrid fiber coax (HFC) broadband system Approved conversion to FTTP in 2018 Design complete and construction bid is in process Outside Plant Characteristics 100% underground system Significant amount of existing conduit Wide right of ways and easements available for new construction Reference architecture Distributed split design All 24F micro fiber cable Standard microduct size – 12.7/10mm Combination of 2, 3, 4 & 7 Way FuturePath to be bored / trenched Loose 12.7/10 bundles may need to be pulled into existing conduits Construction planned to start in August 2019 June 25, 2019