Protection circuit module, power supply channel, equipment and system of network cable power supply channel

Abstract

The invention provides a protection circuit module for a network cable power supply channel, a power supply channel, power supply equipment and a power supply system. The protection circuit module comprises a communication line ESD protection circuit, a communication line short-circuit protection circuit, a power supply power-on sequential control circuit and a power supply short-circuit protection circuit, wherein the communication line short-circuit protection circuit is connected with the communication line ESD protection circuit; the communication line ESD protection circuit is connected with a network interface module through a network data line; the input end of the power supply power-on sequential control circuit is connected with a power supply module of the power supply equipment while the output end is connected with the input end of the power supply short-circuit protection circuit; and the output end of the power supply short-circuit protection circuit is connected with the network interface module through a power line. The network interface module is connected with a network interface module of power-receiving equipment; the power-receiving equipment transmits electric energy and data; and by virtue of the communication line short-circuit protection circuit and the power supply short-circuit protection circuit, the power supply channel can be protected from being burnt down by short circuit.

Description

technical field [0001] The present application relates to the field of network transmission system and power supply system, in particular to a protection circuit module, power supply channel, equipment and system of a network cable power supply channel. Background technique [0002] With the wide application of security monitoring systems, terminal devices such as network doorbells, walkie-talkies, and network cameras have become very popular in daily life. The ensuing problem is that the distributed power supply of various terminal equipment increases the difficulty of deploying the security monitoring system. And it increases the construction cost of system deployment and increases the difficulty of system operation, maintenance and management; and the safety factor of the system is reduced, and the protection circuit of the existing network cable power supply equipment is not complete. The 8-port network cable power supply equipment is used, and the power supply is short-...

AI Technical Summary

Problems solved by technology

The ensuing problem is: the distributed power supply of various terminal equipment increases the difficulty of deploying the security monitoring system

And it increases the construction cost of system deployment and increases the difficulty of system operation and maintenance management; and the safety factor of the system is reduced, and the protection circuit of the existing network cable power supply equipment is not complete. Using 8-port network cable power supply equipment, short circuit and Data line short circuit protection is not designed

[0003] During engineering construction, the crystal head of the network interface needs to be suppressed on site, so that the 8 network cables are connected together; for the network cable power supply equipment powered by 8-port network cable, if there is no short-circuit protection for power supply and network data, it is easy to burn the power line , PCB copper foil and network cable of the network data line, which will cause serious fire and cause safety hazards in engineering construction

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