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  • The switch exchanges in the following three ways

    1) Straight-through: A straight-through Ethernet switch can be understood as a line matrix telephone switch with a crossover between ports. When it detects a data packet at the input port, it checks the packet header of the packet, obtains the destination address of the packet, starts the interna...
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  • Influence of ONU weak light on network speed

    ONU is what we commonly call “light cat”, ONU low light refers to the phenomenon that the optical power received by the ONU is less than the receiving sensitivity of the ONU. The receiving sensitivity of the ONU refers to the minimum optical power that the ONU can receive during norma...
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  • What is a switch? What is it for?

    Switch (Switch) means “switch” and is a network device used for electrical (optical) signal forwarding. It can provide an exclusive electrical signal path for any two network nodes of the access switch. The most common switches are Ethernet switches. Other common ones are telephone vo...
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  • How many ONUs can one OLT connect to?

    64, generally less than 10. 1. In theory, 64 can be connected, but considering the attenuation of light and the sensitivity of onu to light, in general practical applications, the number of connections per port is less than 10. The maximum number of users accessed by olt is mainly limited by thre...
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  • Knowledge of switch optical ports and electrical ports

    There are three types of switches: pure electrical ports, pure optical ports, and some electrical ports and some optical ports. There are only two types of ports, optical ports and electrical ports. The following content is the relevant knowledge of switch optical port and electrical port sorted ...
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  • Which ONU device is better for monitoring system?

    Nowadays, in social cities, surveillance cameras are basically installed in every corner. We see various surveillance cameras in many residential buildings, office buildings, shopping malls, hotels and other places to prevent the occurrence of illegal activities. With the steady development of ec...
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  • What does a “switch” do? how to use?

    1. Know the switch From the function: the switch is used to connect multiple devices, so that they have the conditions for network interoperability. By definition: a switch is a network device that can connect multiple devices to a computer network and forward data to a destination through packet...
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  • How are network patch panels and switches used?

    The connection between the network patch panel and the switch needs to be connected with a network cable. The network cable connects the patch frame with the server, and the patch frame in the wiring room also uses the network cable to connect it with the switch. So how do you connect? 1. Pass-Th...
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  • What is the difference between a normal ONU and an ONU that supports PoE?

    Security personnel who have done PON network basically know about ONU, which is an access device used in PON network, which is equivalent to the access switch in our usual network. The PON network is a passive optical network. The reason why it is said to be passive is that the optical fiber tran...
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  • The development prospect of the switch

    With the rapid development of cloud computing and virtualization technologies, the integration of data center services has put forward higher requirements for the performance, functions, and reliability of switches. However, because data center switches can carry various services, data transmissi...
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  • China Mobile PON equipment expansion part centralized procurement: 3269 OLT equipment

    China Mobile announced the centralized procurement of PON equipment expansion from 2022 to 2023 – a list of equipment suppliers from a single source, including: ZTE, Fiberhome and Shanghai Nokia Bell. Previously, China Mobile released the 2022-2023 PON equipment new centralized procurement ...
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  • What should I do if the fiber optic transceiver crashes?

    Optical fiber transceivers are generally used in actual network environments where Ethernet cables cannot be covered and optical fibers must be used to extend the transmission distance. At the same time, they have also played a huge role in helping to connect the last mile of optical fiber lines ...
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