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Working principle: After any node of the switch receives the data transmission command, it quickly searches the address table stored in the memory to confirm the connection location of the network card with the MAC address and then transmits the data to the node. If the corresponding location is ...

Various third-party optical modules on the market have great advantages in cost compared with the original optical modules, which can effectively solve the problem of the high deployment cost of optical modules. However, some people still worry about the quality of compatible optical modules. HDV...

   As shown in the above figure, we can understand the appearance of RJ45 according to the picture, but not all RJ45 interfaces like the one in the above figure are RJ11 interfaces, which will not be discussed temporarily. The switches are arranged side by side with multiple RJ45 ports, which ca...

Generally speaking, the compatibility of optical modules refers to whether the modules can work normally on communication equipment of different brands and manufacturers. The technology content of optical modules is relatively low, and their introduction is relatively simple. As a result, many t...

or the OSI reference model, the switch works on the second layer of this model, the data link layer. As shown in the following figure, the switch has eight ports. When a device is plugged into the switch through RJ45, the switch’s master chip will identify the ports plugged into the network...

A PON module is a kind of optical module. It works on OLT terminal equipment and connects with ONU office equipment. It is an important part of the PON network. PON optical modules can be divided into APON (ATM PON) optical modules, BPON (broadband passive network) optical modules, EPON (Ethernet...