V souvislosti s evolucí přístupových sítí se v současné době stále častěji diskutují optické, případně kombinované opticko-metalické přístupové přípojky označované jako FTTx (Fibre to the X), kde optická část přípojek bude založena na některé z variant pasivních optických přístupových sítí (PON), nejčastěji na variantě GPON (Gigabit Passive Optical Network) či EPON (Ethernet Passive Optical Network). […]
PON architectures for FTTH deployments are currently based on passive optical splitters to distribute the bandwidth to each customer using fiber splitters providing ratios ranging up to 1:64 or even 1:128. The physical PON FTTH architecture typically supports the Ethernet protocol. PON network feeds a variety of optical network terminations (ONTs) or optical network units […]
In the early days of GPON service providers cared primarily about getting the service to work, and the easiest way to ensure this was to purchase an end-to-end GPON solution from a single vendor, who was responsible to make it work. Providers that used multiple vendors in their network divided their service area into different […]
Global GPON revenue declined 7 percent quarter-over-quarter to reach $1.32 billion. This decline was primarily associated with declining ASPs across all regions. Year-over-year, revenue increased by 32 percent. Asia Pacific continues to drive the majority of demand, where China is currently in the process of large scale FTTH deployments due to government mandated regulation. OLT […]
1. Use an ONT (Optical Network Terminal) / ONU (Optical Network Unit) Tester to determine if the ONT/ONU at the subscriber’s end is responding to downstream signals from the OLT (Optical Line Terminal). The Active ONT /ONUidentifier clamps on to 0.9mm buffered fiber, or 2mm or 3 mm jacketed fiber, or 2.0mm x 3.0mm drop cable, senses and […]
Splitter-based FTTx architectures are a compromise between cost and the flexibility of running fiber to every subscriber location. Instead of running fiber from the central office/ headend to every home like in a P2P arrangement, which is extremely expensive, splitter-based architectures run a single fiber from the headend/central office out to a central distribution point […]
