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  • 06-172022 Describe the important reasons for the failure of the optical module function

    Describe the important reasons for the failure of the optical module functionDue to the pollution and damage of the optical interface, the loss of the optical link increases, resulting in the failure of the optical link. Describe the important reasons for the failure of the optical module function:A. The optical port of the optical module is exposed to the environment, and the optical port is polluted by dust entering;b. The end face of the optical fiber connector used has been polluted, and the optical port of the optical module is polluted twice;c. The end face of the optical connector with pigtail is improperly used, and the end face is scratched;D. Use inferior fiber optic connectors;

  • 06-172022 Common DAC high-speed cable classification and model

    Common DAC high-speed cable classification and modelDAC high-speed cable (Direct Attach Cable) is generally translated as direct cable, direct-attached copper cable or high-speed cable. Cable assemblies, non-replaceable ports, module heads and copper cables cannot be separated, but compared to optical module active optical cables (Active Optical Cables), the connector modules on high-speed cables do not have expensive optical lasers and other electronic components, so Significant savings in cost and power consumption in short-distance applications. With higher Ethernet speeds, cloud computing, the Internet of Things, and virtual data centers, more requirements are placed on data center operators. The data speed is actually on the way to 400G, so in addition to the connection within 3-5m in the server, DAC can also be used (5-7m needs to use special insulating materials to meet the characteristic requirements), and the connection beyond these distances is generally realized ...

  • 06-172022 How is High Speed Digital IO designed and how is it implemented?

    Because the communication in the 5G and IoT era has the characteristics of high speed, low latency and high bandwidth, to realize the connection between 5G and IoT, a large number of base stations need to be established, which will also bring a lot of power, signal, optical fiber and other connectors and cables. Therefore, many high-speed digital interfaces are gradually entering our eyes. At present, the most common ones are PCIE, SAS and SATA. Of course, there are also XAUI protocol and Thunderbolt on 10G Ethernet. This is jointly developed by Intel and Apple. Universal high-speed interfaces that combine DisplayPort ports, etc. Today we are going to share how High Speed Digital IO itself is designed and implemented! For specific rankings such as PCIE and SAS, you can ask Du Niang: PCIe, SAS and SATA, who will lead the storage interfaceHigh Speed Digital is usually a serial interface, and it can be said that it is precisely because it is serial that the speed becomes so high, because ...

  • 06-172022 Introduction of common Mini SAS, SAS, HD Mini SAS interface types

    SFF-8643: Internal Mini SAS HD 4i/8iThe SFF-8643 is the latest HD MiniSAS connector design for implementing HD SAS internal interconnect solutions. The SFF-8643 is a 36-pin "High Density SAS" connector with a plastic body normally used for internal connections.A typical application is an INTERNAL SAS link between a SAS HBA and a SAS drive.SFF-8643 complies with the latest SAS 3.0 specification and supports 12Gb/s data transfer protocolThe HD MiniSAS external counterpart of SFF-8643 is SFF-8644, which is also compatible with SAS 3.0 and also supports 12Gb/s SAS data transfer speed. Both SFF-8643 and SFF-8644 can support up to 4 ports (4 lanes) of SAS data .These newer SFF-8644 and SFF-8643 HD SAS connector interfaces basically replace the old SFF-8088 external and SFF-8087 internal SAS interfacesThese newer SFF-8644 and SFF-8643 HD SAS connector interfaces basically replace the old SFF-8088 external and SFF-8087 internal SAS interfacesSFF-8087: Internal Mini SAS 4iThe SFF-8087...

  • 06-172022 What would a world without connectors look like?

    What would a world without connectors look like?The connector is a component that electronic technology professionals often touch, and its effect is relatively simple: it is disconnected in the power circuit or in the middle of an independent power circuit, creating a communication bridge, allowing current commodities to flow, and the power circuit is connected.Imagine a world without connectors. Continuous conductors must be connected in the middle of the power circuit. For example, the electronic equipment must be connected to the switching power supply, and both sides of the connecting transmission line must be secured in some way (such as soldering) to the electronic equipment and the switching power supply. In this way, there will be a lot of trouble in manufacturing and application.The connector is a component that electronic technology professionals often touch, and its effect is relatively simple: create a communication bridge in the middle of a disconnected or independent powe...

  • 06-172022 Connector model selection must consider 10 criteria

    Connector model selection must consider 10 criteriaA connector basically contains one of the more common parts in all electronic products. When we apply the connector, no doubt we don't expect to find out when the new project is nearing the prologue that we have to improve the content and adjust the new project to incorporate this modificationA connector basically contains one of the more common parts in all electronic products. When we apply the connector, we certainly don't expect to find out as the new project nears the prologue that we have to improve the content and adjust the new project to incorporate this modification, which will result in increased time and cost. To better prevent the inconvenience of model selection, care must be taken when selecting connectors. The Lighting Wire World Network summarizes the entire process of connector model selection steps that must be noted. I hope it's easier for everyone to find connector products that meet their regulations.H...

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