Step-by-step power-on method and system for intrinsic safety type ten-gigabit three-layer switch
An intrinsically safe, step-by-step technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve the problems of high power consumption, restrict 10 Gigabit Layer 3 switches, etc., and achieve the effect of reducing inrush current
Active Publication Date: 2019-12-13
深圳市三旺通信股份有限公司
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Problems solved by technology
[0006] 3. With the development of communication technology, there are more and more integrated functions of single-switch chips, and the power consumption is also increasing. At present, the power consumption of mainstream 10G three-layer switch chips on the market is generally greater than 8W, and the SDK is initialized when the system is started. The power consumption of the external circuit, PHY chip and optical module, etc., the power consumption of the system startup generally exceeds the requirements of the national standard of intrinsic safety, which directly leads to the intrinsic safety protection of the external power supply.
This problem seriously restricts the use of most 10G L3 switches in underground mines
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[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0023] The present invention relates to a 10-Gigabit three-layer switch, in particular to an intrinsically safe 10-Gigabit three-layer switch for transmission of working condition information of underground electromechanical equipment in coal mines. Intrinsically safe power supply overcurrent protection problems caused by excessive power consumption at the start-up of layer switches; through load-controllable power-on sequences, the inrush current generated when power loads such as switch optical module groups and PHY groups are powered on.
[0024] The specific realization of the present invention...
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The invention belongs to the technical field of 10-gigabit three-layer switches, and discloses a step-by-step power-on method for an intrinsic safety type 10-gigabit three-layer switch, which comprises the steps of powering on a power supply slow start circuit, and supplying power to an intrinsic safety type step-by-step power-on management system and a 10-gigabit switching core circuit through anintrinsic safety type DC-DC power supply and an intrinsic safety type secondary protection circuit; after the 10-gigabit exchange core circuit is powered on and initialized, enabling the intrinsic safety step-by-step power-on management system to carry out step-by-step power-on respectively. In addition, the invention also discloses a corresponding power-on system. According to the invention, step-by-step power-on can be realized, and the impact current is reduced.
Description
technical field [0001] The invention belongs to the technical field of 10-Gigabit three-layer switches, and in particular relates to a step-by-step power-on method and system for intrinsically safe 10-Gigabit three-layer switches. Background technique [0002] Coal mine comprehensive automation is the guarantee of high yield, high efficiency and safe production in coal mine, and coal mine underground network platform is the basis for realizing coal mine comprehensive automation. At present, many coal mines in my country have established industrial Ethernet for the monitoring of underground coal mining equipment and underground environmental parameters; but mainly adopt the 100M + Gigabit hybrid network mode (100M downlink + Gigabit uplink ring). [0003] The shortcomings of the current underground Ethernet switch are mainly reflected in the following points: [0004] 1. Data exchange is generally at the data link layer. With the development of underground communication moni...
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IPC IPC(8): H04L12/931
CPCH04L49/40
Inventor熊伟李耀军
Owner深圳市三旺通信股份有限公司