Foreign News

  • Common knowledge of weak electrical systems such as optical fibers, optical modules, optical interfaces, and optical jumpers

    Optical switches commonly used in Ethernet switches include SFP, GBIC, XFP, and XENPAK. Their full English names: SFP: Small Form-factorPluggabletransceiver, small form factor pluggable transceiver GBIC: GigaBit InterfaceConverter, Gigabit Ethernet Interface Converter XFP: 10-Gigabit smallForm-fa...
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  • Analysis of common problems in fiber testing

    The following sections provide detailed analysis of common problems in fiber testing. (1) Why does the fiber test pass but the packet is still lost during network operation? In the choice of standard, many users will make some obvious mistakes, such as paying little attention to whether the teste...
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  • The picture illustrates what is fiber? Classification of optical fibers?

    1.optical fiber core structure 1) Core: high refractive index, used to transmit light; 2) Cladding: low refractive index, forming a total reflection condition with the core; 3) Protective layer: protects the optical fiber. 2.Single-mode and multi-mode Only one mode of light can be transmitted....
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  • What are the fiber connection methods

    Optical fiber is an indispensable element in today’s network age, but do you really understand optical fiber? What are the fiber connection methods? What is the difference between optical cable and optical fiber? Is it possible for fiber to completely replace copper cables from outside What...
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  • How to connect fiber optic transceiver? What is the difference between single fiber / dual fiber transceivers?

    When weak current projects encounter long-distance transmission, fiber optics are often used. Because the transmission distance of optical fiber is very long, in general, the transmission distance of single-mode fiber is more than 10 kilometers, and the transmission distance of multi-mode fiber c...
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  • How is Combo PON compatible with GPON and XGPON?

    With the implementation of the “Broadband China” and “Speed-up and fee-reduction” strategies, China ’s fixed broadband network capabilities have been continuously improved; user broadband has changed from 10M and below to 50M / 100M / 200M, and has evolved towards Gigabit;...
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  • Evolution history of 2G to 5G optical communication modules

    Development of wireless optical communication modules: 5G networks, 25G / 100G optical modules are the trend In the beginning of 2000, 2G and 2.5G networks were under construction, and the base station connection began to cut from copper cables to optical cables. At first, 1.25G SFP optical modul...
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  • Regarding fiber broadband technology, this article is enough!

    Today, the Internet is an essential part of our daily lives. In fact, there are two main ways we use the Internet: one is through the mobile phone’s data service; the other, more generally, is through broadband at home or work. From a professional perspective, wireless access is wireless ac...
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  • How much do you know about fiber pigtails?

    The tail fiber (also known as the tail fiber, pigtail line). It has an adapter at one end and a broken end of a fiber optic cable core at the other end, which is connected to other fiber optic cable cores by welding. In other words, a jumper is cut into two sections from the center to become two...
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  • March New Trade Festival achieves “Extreme Excitement and Precision”

    The slogan of  HDV at the New Trade Festival: Extreme-Every quality detail is taken seriously and every order is served to the extreme; Excitement-wholeheartedly deal only for customers, and cheer for every self-growth; Accurate-precise matching, precise transaction, and accurate service. Backgr...
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  • Encyclopedia of Optical Fiber Transmission

    Advantages of fiber optic communication: ● Large communication capacity ● Long relay distance ● No electromagnetic interference ● Rich resources ● Light weight and small size A Brief History of Optical Communications More than 2000 years ago, the beacon-lights, semaphores 1880, optical telephone-...
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  • One article to understand: the most complete circuit test process

    When a circuit board is soldered, it is usually not to directly supply power to the circuit board when checking whether the circuit board can work normally. Instead, follow the steps below to ensure that there is no problem in each step and then power on is not too late. Whether the connection is...
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