There are two major standards groups for PON technology, they are the Institute of Electrical and Electronics Engineers (IEEE) and the Telecommunication Standardization Sector of the International Telecommunication Union (ITU-T). The following article is about the introduction of different PON technology. GEPON (Gigabit Ethernet passive optical network) 1G / 10G symmetrical Update from Ethernet protocols […]
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 […]
The SC connector (short for Subscriber Connector, square connector or Standard Connector) mianly used in Datacom and telecom; GPON; EPON; GBIC, It features a 2.5mm Zirconia Ceramic ferrule and a push/pull coupling mechanism for a fast and reliable connection. The SC connectors are available for single mode UPC with blue boots, for APC with green […]
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 […]
Optical fibre has incredibly low loss coupled with extremely high capacity, making it a unique transmission medium. From the point of view of the access network The Shannon Limit can effectively be ignored. Distance is not an inherent limitation as optical signals can travel 70–80 km before they need to be amplified. Instead the limitations […]
GPON GEPON COMPREHENSIVE COMPARISON TABLE Comparison GPON GEPON GPON GEPON Basics ITU Standard G.984 ITU Standard G.987 for 10Gbits Downstream 10Gbits/s, Upstream 2.488/10Gbits/s Uses GPON Encapsulation Method (GEM), fragmented packets or ATM (most implementations use GEM as ATM is expensive) Sometimes called GEPON (Gigabit Ethernet Passive Optical Network) IEEE 802.3 standard, ratified as 802.3ah-2004 for 1Gbits/s […]
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 […]
