Presentation on theme: "High Level Telecom Architecture"— Presentation transcript:
1 High Level Telecom Architecture ONTShared FiberSAIFiber To The Home (FTTH)Shared fiberOptical Network Terminal (ONT) converts light to analog voice and Ethernet dataConsumer responsible for batteryWhat if consumers don’t want fiber?OLTGatewayPassive Optical SplitterHome Run CopperBatteryCentral OfficeMDFDS1RMUXDigital Loop Carrier (DLC)Housed in Remote Terminal (RT) outside plant cabinetsAC power with battery backup & generator hook-upSONETRT SiteDLCSAIHome Run CopperBatteriesClass 5 SwitchCentral Office (CO)“home run” copper connects customers directly to CONo Batteries in outside plant … phone “just works”SAIHome Run CopperBatteries & GeneratorsLots of great copper … it must be protected!
2 Outside Plant Cable Topology - DLC F2 Aerial CableRemote TerminalSAI/FDIF1/F2 x-connectDrop to HouseDLCBatteriesF2 Buried CableFeeder (F1 Cable)F1 Cable to CO is being retired as we speakFrom Central OfficeLosing Feeder cable to SAI cuts-off direct access to customers from Central Office
3 Outside Plant Cable Topology - FTTH Passive Fiber SplitterCopper and Fiber Must Both be Maintained as part of “One Network”F2 Aerial CableSAI/FDIF1/F2 x-connectDrop to House (aerial or buried)To Central OfficeFeeder (F1 Cable)When this copper is retired, it is essentially goneBandwidth is good …but allowing this copper to disappear is wrong and dangerous
4 Key Take Aways Provision of Broadband must not negate Fiber and Copper together provide best of all worldsBandwidthUbiquityReliabilityAll maintenance systems must be kept in operationAll “one network” with different last mile technologies“Feeder” copper is already being retiredWhat is going to happen to your feeder and drop with FTTH?Already being removed for “aesthetic” reasons!Provision of Broadband must not negateNational Security and Emergency Preparedness