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 […]
VDSL2 & Co: ever more promising technological developments VDSL2 has begun to be implemented, and several telcos have based their ultra-fast broadband strategies squarely on copper infrastructure right up to the customer premises. If VDSL can deliver theoretical speeds of around 50 Mbps near the exchange or cabinet, Vectoring, which consists of reducing noise among […]
To cope with the significant increase for storage and on-demand delivery of digital content, enterprises need to boost their optical-pipe capacity. Most turn to coarse wavelength-division multiplexing (CWDM) and dense wavelength-division multiplexing (DWDM) to scale up and avoid installing new fiber. Whether they are planning to lease this extra capacity or use it themselves, someone […]
Proper testing is a critical part of installing, activating and maintaining a PON. While most components are tested during the manufacturing process, they are tested again after splicing and installation of splitters and access terminals. Field testing is required to ensure no excess loss or reflectance has been introduced due to micro-bends in installed fiber, […]
Pyramid Research expects the number of fiber to the home (FTTH) and fiber to the building (FTTB) connections to reach 5.1 million by the end of the year. This is part of an overall trend that will see FTTH/FTTB connections to increase at a compound annual growth rate (CAGR) of 34.9% over the next five […]
OTDR (Optical time-domain reflectometer) is traditional fiber optic test equipment used to characterize fiber optic. It is most easy to use but the OTDR is also one of the most expensive instrument, OTDR could give you an overview of fiber cable link characterstic of the whole system you test. OTDR is applied for estimating the […]
The TLOT-730 OTDR is used to identify cable length and cable fault point or loss events of a fiber optic cable or link. This is mandatory during the installation/fiber acceptance test processes and also during troubleshooting tasks. This application note will provide the beginners with details concerning typical measurements of optical fibers for PON (passive […]
It is important to know the maximum speed that any network can provide, either now or in the future, because bit-rate requirements are growing and choices made today will affect the technical capabilities of the network tomorrow. Although it is difficult to predict the future, Nielsen’s law of Internet bandwidth described earlier provides a guide […]
Fujikura as one of the leading supplier for fiber optic products, especially for fusion splicer and cleaver. right now many people are asking whats the difference between FSM-80S, and FSM-70S fusion splicer, whats the difference among CT-30, CT-30A, and CT-30B cleaver, this article will describe the difference among them, and help you to choose the […]
Nowadays OTDR cost decrease significantly, however many people not familiar to choose the right OTDR, in the market, there are so many OTDR brands like EXFO, JDSU, Fluke, Anritsu, Tarluz, AFL etc. prices are also different, and many articles about how to selecting OTDRs, in this page, we make it simple, considering the following three […]
