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What is PON?
Mar 24 , 2022
PON is the abbreviation of passive Optical Network (Passive Optical Network). Usually we can surf the Internet at home and rely on PON (passive Optical Network). The advantage of passive optical network is that it is a pure medium network, which avoids the electromagnetic interference and lightning influence of external equipment, reduces the failure rate of lines and external equipmen...
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Difference between G652 fiber and G654 fiber
Mar 18 , 2022
G.652 optical fiber is the most widely used optical fiber. At present, except for fiber-to-the-home (FTTH) home optical cables, almost all optical fibers used in long-distance and metropolitan areas are G.652 optical fibers. From the perspective of light energy distribution, the optical signal in the single-mode fiber is not only transmitted in the core, but also in the cladding. In ...
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FTTH network construction mainly provides services.
Mar 11 , 2022
1. Overall planning. With reference to the development requirements of the broadband access network in the Chinese market, and combined with the characteristics of the current GPON products and the specific operation of the current network deployment, it is recommended to adopt the FTTH construction mode, with the ability to provide ultra-high bandwidth for end users, and to bring functional...
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The knowledge and use of OTDR launch cable
Mar 04 , 2022
1. Knowledge of OTDR extension cable The OTDR extension cable is similar to the optical fiber jumper. There is no fusion point in the middle of the optical fiber. During the optical fiber test, the OTDR extension cable is the insertion loss and reflectivity of the near-end connection and the far-end connection of the optical fiber line when using the OTDR measurement. It is mainly used to make up ...
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Ten reasons for excessive splicing loss of optical fiber
Feb 23 , 2022
1. Choose the wrong optical fiber splicing program; for example, misselect the single-mode splicing program to multi-mode. 2. The cutting angle of the end face of optical fiber is too large. 3. The optical system is dirty, mainly the reflector and objective lens. 4. V-shaped slot dirty, optical fiber pressure foot dirty. 5. The aging of the electrode leads to the weak discharge intensity, and the ...
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The key points of fiber cleaver use
Feb 17 , 2022
Optical fiber cleavers are used in relatively harsh environments, so correct operation and maintenance are of great significance to ensure the service life of the cleaver and the quality of fiber cleaving. The D12 fiber cleaver of Shenhuo Seiko Nanjing Communication Technology Co., Ltd. is a compact and easy-to-operate fiber cleaver, which can be used to cut single-mode, multi-mode, dispersion and...
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Winter Olympic Games, communications guarantee "zero failure", network security "zero loophole"!
Feb 10 , 2022
On the evening of February 4, the opening ceremony of the Beijing Winter Olympic Games, which attracted worldwide attention, was held at the National Stadium "Bird's Nest". The relevant departments, bureaus, departments and systems of the Ministry of Industry and Information Technology cooperated closely and made careful arrangements to successfully complete the tasks of radio security, informatio...
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What are reflective and non-reflective events in otdr?
Jan 21 , 2022
1. The height of each point in the OTDR curve represents the backscattered light intensity at that location. When looking at the OTDR curve, you can see that the reflected signal is raised in some places, as if the optical power at the back is stronger than the front, which is impossible. Generally, this situation is the backscattering peak caused by the Fresnel reflection at the splicing, breakin...
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How to solve these six problems encountered in the process of optical fiber fusion splicing?
Sep 29 , 2021
1. There are bubbles or cracks in the contacts during welding This situation may be due to poor fiber cutting, such as the end face is inclined, burrs, or the end face is not clean, and the fiber needs to be cleaned before the splicing operation; there is also a situation that the electrical electrode is aging and the electrode rod needs to be replaced. 2. The welding is too thick or the contact p...
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