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3G era, will greatly facilitate the demand for network bandwidth, while the passive optical network (PON) of this multi-point second-generation FTTH (fiber to the home) technology, as a high-speed Broadband Service excellent alternative, low cost, long life, distance, etc., so highly praised by the industry. With the three major domestic carriers to accelerate their launch 3G network construction and related businesses began operations, light Communicate In the Chinese market since last year, unprecedented attention by the industry to form the construction of FTTH PON optical access networks such as rapid start-up. Chinese market is currently used in mainstream EPON (Ethernet Passive Optical Network) technology, is the PON network construction in the two main one way. China Telecom, China Unicom repeatedly Tender , EPON has been rapid development in recent years. China Unicom recently started the world's largest EPON equipment bidding, which marks EPON entered a new development period. In addition to China, the international use of EPON are Japan, South Korea, which Japan began building the first EPON network, and has been based on providing TV , Voice, Internet Triple Play. In the United States, India, Europe and other countries and regions, construction of another way of PON GPON (Gigabit Passive Optical Network) was as mainstream. It is different with the EPON, two main difference is that, EPON Ethernet and IP-based protocols, GPON can support ATM, TDM, SONET / SDH, Ethernet and other protocols, the downlink rate and split ratio are also different. Industry generally believe that, compared to EPON controller, as higher integration, GPON controller, while improving the bandwidth to support a variety of business, but GPON capital cost is considered too high, but previously that technology is not mature enough. PON has been used which is the industry debate. Recently, with the great development of the domestic optical access network, GPON and EPON battle bustling up, the two camps are arguing, with the mature GPON, GPON recent calls for gradually appear high up on GPON, the cost was too high then the firm will throw out the argument. Supporters argue that the high level of integration GPON chip can not add other chips at the same time support a variety of business in the long run, the cost is not higher than EPON. However, GPON EPON supporters are believed to provide the functionality, EPON can also be provided, the overall cost is better than GPON. From the operator point of view, in addition to outside EPON, GPON also began their experiments, China Telecom, China Unicom, China Mobile is not an exception. Therefore, it seems that the attitude of operators not sure, it brings to the PON market variables. From the PON chip vendor perspective, GPON and EPON markets are very different pattern is present in the mainstream of EPON vendor in China only three, namely, PMC-Sierra, Teknovus and Cortina, three suppliers accounted for all the market. The GPON chip suppliers have Broadlight, PMC-Sierra, Broadcom, Marvel, Cortina, Hisilicon, Infineon, Ikanos and a number of recently announced that this year will chip giant Broadcom GPON chip market in China, to support the development of GPON. Allegedly, equipment companies have begun their own research and development and their GPON chip and program, for example, some equipment companies using FPGA (field programmable gate array) technology in the development of GPON program. But whether this trend will be more lower cost GPON, you need to observe, in any case, equipment research and development enterprise itself PON chips for chip enterprises, will be a new challenge. But EPON first-mover advantage in China, now China has started 10GEPON large-scale construction, from this point of view, the layout should be ahead of GPON. GPON whether the mass start, depends on the level of support the industry chain. However, the rise of GPON, PON chips will undoubtedly change the market structure in China, will enable China PON chips suppliers from three to 10 or even more. The e-commerce company in China offers quality products such as leather briefcases for women Manufacturer , China ladies leather briefcases, and more. For more , please visit briefcases laptop bags today!
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