What is the exact performance of the RJ45 network connector with transformer?

ONE. What is the specific performance of RJ45 network connector with transformer? Transformers are also known as filters and isolation transformers, they are integrated isolation transformers that are widely used in RJ45 network connectors, which are extremely common in RJ45 Ethernet, network routers, Ethernet switches, VDSL digital devices, network set-top boxes, ADSL, EPON / GPON triple-play devices, EOC terminals, smart TVs, PC boards and other industrial equipment. There are five common types of network transformers for RJ45 network connectors, divided into single-port, dual-port, multi-port, 10 / 100BASE and 1000BASE-TX.Generally those RJ45 network connectors without network transformers have a very limited transmission distance under normal operation, and there are some impacts when connecting to different levels of network ports. There is also the chip by the external interference is also very large. The RJ45 network connector with network transformer is mainly used for signal level coupling. First of all, it can enhance the signal, so that the transmission distance is farther, and secondly, the chip end can be isolated from the outside world, so that the anti-interference performance has been greatly improved, and the chip also has a strong protective effect (such as imitation of lightning strikes). When connected to different levels of network ports (if the PHY chip is 2.5V and some PHY chips are 3.3V), it will not affect the performance of each other's devices.

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