Hot plug control device for Ethernet switch and industrial Ethernet switch

Abstract

The invention provides a hot plug control device for an industrial Ethernet switch, which is located at a back plate of the industrial Ethernet switch, and is connected between a back plate power supply bus and a business printed circuit board circuit. The hot plug control device comprises an input start control module, an output start control loop, an output control loop and a power conversion module, wherein the input start control module is used for cutting the power supply of the back plate power supply bus before splicing the business printed circuit board and connecting the power supply of the back plate power supply bus after splicing; the output start control loop is used for acquiring loop circuit from the business printed circuit board circuit to the back plate power supply bus in the starting phase of the power supply, and feeding back the loop circuit to the power conversion module; the output control loop is used for acquiring the voltage of the business printed circuit board circuit output by the power conversion module after the starting phase is ended, and feeding the voltage back to the power conversion module; and the power conversion module is used for adjusting the starting current and output voltage of the back plate power supply bus according to the received fed back current and voltage, so as to avoid electrical sparks when the business printed circuit board is spliced. The hot plug control device provided by the invention ensures that no potential electrical spark risks exist for the switch when the hot plug operation is carried out on the business printed circuit board under the mine.

Description

technical field [0001] The invention relates to the communication field, in particular to a hot-swap control device for an industrial Ethernet switch and the industrial Ethernet switch. Background technique [0002] In the industrial communication system, due to the need of real-time data exchange, it is generally required for the communication system that the system cannot be powered off. In this case, the problem of live operation of some equipment and devices has arisen. [0003] like figure 1 Shown is a schematic diagram of a basic power supply structure of a communication device in the prior art. Multiple service boards are plugged into the backplane (or main board, motherboard) through dedicated slots, and the power supply supplies power to each business board plugged into the backplane through the 48V bus bar of the backplane. [0004] As mentioned above, in the industrial communication system, due to the need of real-time data exchange, it is generally required for...

AI Technical Summary

Problems solved by technology

However, in industrial applications, such as high-risk places such as coal mines and oil refineries, because there are many dangerous su

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