Insulation blocking equipment for Ethenret

Abstract

The equipment includes following parts: first Ethernet interface; through conversion of electromagnetic field, first coupling transformer in use for coupling Ethernet signal at Ethernet interface end to the following photovoltaic conversion module; first photovoltaic conversion module converts differential signal from the coupling transformer to optical signal; second photovoltaic conversion module in use for converting optical signal from first photovoltaic conversion module to differential signal, which is sent to second coupling transformer; second coupling transformer sends differential signal from second photovoltaic conversion module to second Ethernet interface through coupling mode. Using mode of optical isolation or magnetic isolation, the invention isolates electrical connection between network devices thoroughly so as to prevent network devices in larger area from shot up caused by thunder.

Description

technical field [0001] The invention relates to a protection device for network communication, in particular to a protection device for protecting Ethernet functional equipment and Ethernet terminal equipment by means of isolation. Background technique [0002] With the advancement of science and technology, the information age has arrived, and information technology has penetrated into all fields of production and life in human society. The network is the carrier of information, and Ethernet functional devices play a "hub" role in network data transmission. The current network devices are often connected by wires. In the thunderstorm season, once a device is struck by lightning, a huge current will be transmitted along the wires to all the devices connected to it, destroying these devices and causing network communication problems. Interruption, paralysis of Ethernet functional equipment and Ethernet terminal equipment, and huge economic losses because the destroyed equipm...

AI Technical Summary

Problems solved by technology

The current network devices are often connected by wires. In the thunderstorm season, once a device is struck by lightning, a huge current will be transmitted along the wires to all the devices connected to it, destroying these devices and causing network communication problems. Interruption, paralysis of Ethernet functional equipment and Ethernet terminal equipment, and huge economic losses because the destroyed equipment cannot be repaired

At present, most Ethernet lightning protection adopts the method of discharging the signal line to the ground, which cannot solve the damage caused by the high potential difference between the two devices.

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