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  • What is the difference between a dedicated industrial switch for security monitoring and an ordinary switch?

    What is the difference between a dedicated industrial switch for security monitoring and an ordinary switch?

    Industrial  Ethernet switches are placed on the back of the router to expand the router interface to solve the problem of insufficient interfaces. When Ethernet is designed, due to its use of Carrier Sense Multiplexing Collision Detection (CSMA/CD mechanism), its reliability is greatly reduced wh...
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  • What is HDMI fiber optic extender? What are its applications?

    What is HDMI fiber optic extender? What are its applications?

    What is HDMI fiber optic extender? HDMI optical fiber extender is a transmission device used to extend the signal, which solves the problem that HDMI audio and video signals cannot be transmitted over long distances and guarantees the quality of signal transmission. Extenders are generally divide...
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  • The safe transmission distance of PoE power supply? What are the suggestions for the choice of network cable?

    The safe transmission distance of PoE power supply? What are the suggestions for the choice of network cable?

    The safe transmission distance of POE power supply is 100 meters, and it is recommended to use Cat 5e copper network cable. It is possible to transmit DC power with a standard Ethernet cable for a long distance, so why is the transmission distance limited to 100 meters? The fact is that the maxim...
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  • How to turn an ordinary switch into a PoE switch?

    How to turn an ordinary switch into a PoE switch?

    If you want to turn an ordinary switch into a PoE switch, directly assembling an ordinary switch into a PoE switch cannot fully realize power supply and data transmission at the same time. Unless you know the relevant knowledge of the switch well, you can only meet your needs in other ways , Here...
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  • Can a PoE switch be used as a normal switch?

    Can a PoE switch be used as a normal switch?

    PoE switch is a new type of multifunctional switch. With the wide application of PoE switch, people have a certain understanding of PoE switch. However, many people think that PoE switches can generate electricity by themselves. This statement is not correct. Generally speaking, PoE switch power ...
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  • Analysis of the characteristics of the Layer 2 industrial switch

    Analysis of the characteristics of the Layer 2 industrial switch

    The development of the two-layer switching technology is relatively mature. The two-layer industrial switch is a data link layer device. It can identify the MAC address information in the data packet, forward it according to the MAC address, and record these MAC addresses and corresponding ports ...
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  • What are the advantages of Layer 3 switches?

    What are the advantages of Layer 3 switches?

    The technology of the Layer 3 switch is becoming more and more mature and its applications are becoming more and more extensive. In a certain range, it has more advantages than routers, but there is still a big difference between the three-layer switch and the router. In the local area network, t...
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  • Introduction to the working principle of Layer 3 switches

    Introduction to the working principle of Layer 3 switches

    Each network host, workstation or server has its own IP address and subnet mask. When the host communicates with the server, according to its own IP address and subnet mask, as well as the server’s IP address, determine whether the server is in the same network segment as itself: 1. If it i...
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  • POE switch application scheme and functional characteristics introduction

    POE switch application scheme and functional characteristics introduction

    PoE switch refers to a switch that can provide network power supply to remote power receiving terminals through a network cable. It includes two functions: network switch and PoE power supply. It is a relatively common power supply device in PoE power supply systems. So, what are the application ...
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  • Why should optical transceivers be used in pairs?

    Why should optical transceivers be used in pairs?

    Will new customers always ask for a pair of optical transceivers? Yes, in fact, optical transceivers are used in pairs. Optical transceivers are used in optical and electrical converters that use optical fibers as the carrier. The sender and receiver must be the same device. Why should optical tr...
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  • Introduction to SDH Optical Transceiver

    Introduction to SDH Optical Transceiver

    With the development of communication, the information required to be transmitted is not only voice, but also text, data, images, and video. Coupled with the development of digital communication and computer technology, in the 1970s and 1980s, T1 (DS1)/E1 carrier systems (1.544/2.048Mbps), X.25 f...
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  • Can industrial Ethernet switches be used for home use?

    Can industrial Ethernet switches be used for home use?

    Industrial switches are also called industrial Ethernet switches, that is, Ethernet switch equipment used in the field of industrial control. Due to the network standards adopted, it has good openness, wide application and low price, and uses transparent and unified TCP/IP protocol. , Ethernet ha...
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