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  • What are the differences between 100G QSFP28 PSM4 and CWDM4 optical module
    What are the differences between 100G QSFP28 PSM4 and CWDM4 optical module
    • January 16. 2021

    People's desire for high-speed optical network promotes the vigorous development of the entire optical communication industry, including the independent research and innovation of optoelectronic device technology and many other technologies. At this stage, most of the data centers have deployed 100G network. In 100G medium range optical network transmission, 100G QSFP28 PSM4 and 100G QSFP28 CWDM4 ...

  • What are the reasons for the failure of the optical module
    What are the reasons for the failure of the optical module
    • January 14. 2021

    As a photoelectric integrated product used to realize photoelectric conversion in optical fiber communications, optical modules are now widely used in data centers, fiber to the home, local area networks, base stations and other fields. In the process of using the optical module, it is inevitable that there will be abnormal usage. Next ETU-LINK will introduce several main reasons for the failure o...

  • Optical module selection scheme of H3C S9820 series data center switch
    Optical module selection scheme of H3C S9820 series data center switch
    • January 12. 2021

    H3C S9820 switch supports high-density 100GE/40GE/25GE/10GE ports. It has strong forwarding capability and flexible sub card configuration. It can support 32 400GE ports or 100GE ports. It has high port density and strong forwarding ability. It can meet the networking requirements of high-density servers in high-end data center without convergence access. At the same time, all physical ports suppo...

  • Introduction and application of 200G QSFP-DD SR8 optical module
    Introduction and application of 200G QSFP-DD SR8 optical module
    • January 09. 2021

    As the internal traffic of the Internet giant's data center increases nearly 100% every year, many giants will seek 200G optical module to solve the growing demand for data transmission. There are mainly two types of 200G optical modules: QSFP-DD and QSFP56. Among them, QSFP-DD refers to four channel small pluggable double density package, which is defined by QSFP-DD MSA group, which is twice the ...

  • Comparison between 100GBASE-SR4 optical module and 100G QSFP+ AOC active optical cable
    Comparison between 100GBASE-SR4 optical module and 100G QSFP+ AOC active optical cable
    • January 07. 2021

    Both 100G QSFP28 SR4 optical module and 100G QSFP28 AOC active optical cable are widely used in short distance interconnection of 100G data center. Since both of them can realize short distance interconnection, what is the difference between them and what are their advantages and disadvantages?   Before understanding the differences between them, let's first know their common points. Fir...

  • Comparison between 40GBASE-SR4 optical module and 40G QSFP+ AOC active optical cable
    Comparison between 40GBASE-SR4 optical module and 40G QSFP+ AOC active optical cable
    • January 06. 2021

    40G QSFP+ SR4 optical module and 40G QSFP+ AOC active optical cable are widely used in short distance interconnection of 40G data center. Since both of them can realize short distance interconnection, what is the difference between them and what are their advantages and disadvantages? ETU-LINK will tell you the answer. 40G QSFP+ SR4 optical module VS 40G QSFP+ AOC active optical cable 1. Different...

  • Can different brands of switches be interconnected?
    Can different brands of switches be interconnected?
    • December 31. 2020

    Usually, there are thousands of switches in a large data center. When connecting switches, sometimes different brands of switches are connected. So, can different brands of switches and optical modules be interconnected? The answer is yes, but you need to meet the following conditions to interconnect. 1. The specifications and parameters of optical modules of switches on both sides must be consist...

  • The difference between AOC cable and DAC cable
    The difference between AOC cable and DAC cable
    • December 29. 2020

    AOC active optical cable and DAC high speed cable are both used for data center short distance server interconnection and server switch interconnection. What are the difference between them? Today ETU-LINK will take you to understand it. AOC active optical cable VS DAC high speed cable 1. Different power consumption. The maximum power consumption of AOC active cable is lower than that of DAC high-...

  • Requirements of optical module in the development trend of cloud data center
    Requirements of optical module in the development trend of cloud data center
    • December 29. 2020

    In recent years, the traffic and bandwidth of the data center are growing exponentially, and the data center is also gradually transiting from 10G and 40G to 100G network, which drives the application of 100G optical modules in the data center. As a photoelectric converter, optical module is a very important part of optical fiber communication. Because optical fiber communication has the character...

  • What are the types of fiber patch cord and the corresponding colors?
    What are the types of fiber patch cord and the corresponding colors?
    • December 29. 2020

    Optical fiber communication technology and computer technology as the two pillars of information technology, in which the computer is responsible for digitizing information, while optical fiber is responsible for transmitting information. Optical fiber communication uses light waves as carrier waves to transmit information from A to B. According to ITU-T standard, communication optical fiber can b...

  • The energy saving and power saving scheme of data center computer room
    The energy saving and power saving scheme of data center computer room
    • December 19. 2020

    Data center computer room plays an important role in enterprise data processing and storage, but it is also accompanied by high energy consumption. Among them, the power consumption of network equipment such as switches accounts for 40% - 70% of the total power consumption. In addition, the power consumption of cooling and lighting equipment in the computer room makes up a very high proportion of ...

  • Five differences between CWDM and DWDM optical module
    Five differences between CWDM and DWDM optical module
    • December 17. 2020

    WDM is a technology to solve the shortage of optical fiber resources. Its main purpose is to increase the available bandwidth of optical fiber without laying more fibers. CWDM and DWDM are two kinds of WDM technology which are widely used in telecommunication. They are mainly used in WDM / demultiplexer. WDM / demultiplexer should be used together with WDM optical module. Next ETU-LINK will show y...

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