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Hot plug realization method, hot plug system and board card

A technology for plugging and unplugging boards and boards, which is applied in the direction of instruments, electrical digital data processing, etc., can solve the problems of long and short needle universality and poor controllability, and achieve the effects of strong versatility, avoiding system abnormalities, and improving reliability

Active Publication Date: 2011-02-02
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Embodiments of the present invention provide a hot-swapping implementation method, a hot-swapping system, and a board to solve the problem of poor versatility and controllability in the design mode of long and short pins in the prior art, and cannot well avoid the hot-swapping process System abnormal problems caused by

Method used

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  • Hot plug realization method, hot plug system and board card
  • Hot plug realization method, hot plug system and board card
  • Hot plug realization method, hot plug system and board card

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1 of the present invention provides a hot-swap system and a board, the structure of the hot-swap system is as follows image 3 As shown, at least one board 10 and a backplane 20 are included. Wherein the board card 10 can implement hot insertion and hot removal of the backplane 20 .

[0040] The board 10 can be a main control board or a service line card, and the structure of the board 10 is as follows: Figure 4 As shown, it includes: a pre-charging module 101 , a bus 102 and a logic device 103 connected to the bus 102 .

[0041] The pre-charging module 101 is first connected to the backplane 20 when the board 10 is inserted into the backplane 20 through the provided long needle, and the voltage of the bus 102 is pulled up to the set pre-charging voltage; When pulling out, keep the voltage of the bus 102 on the board 10 at the set pre-charging voltage, disconnect the connection with the backplane after the bus 102 voltage drops to the pre-charging voltage,...

Embodiment 2

[0054] Embodiment 2 of the present invention provides a specific implementation example of a hot-swap system and an example of a board. Of course, the hot-swap system and boards in this application are not limited to the structures listed in this embodiment. The hot-swap system is structured as Figure 5 As shown, it includes at least one board (for example, two boards, master and slave), and a backplane. Wherein, the long pins, middle pins and short pins connecting the backplane and the board are arranged on the backplane, and corresponding slots are arranged on the board. Of course, in practical applications, the long pins, middle pins and short pins connecting the backplane and the board can also be set on the board, and the corresponding slots can be set on the backplane.

[0055] For each board, at least one short pin for establishing connection with the logic device, a middle pin for establishing connection with the bus, and a long pin for establishing connection with t...

Embodiment 3

[0075] Embodiment 3 of the present invention provides a hot-swap implementation method, which is mainly designed for the hot-swap implementation of the main control board, but may also be applicable to service line cards. The method is implemented based on the hot plugging system and the board of the first embodiment above, and includes a hot plugging method and a hot plugging method of the board. in:

[0076] The implementation process of board hot insertion is as follows: Image 6 As shown, the execution steps are as follows:

[0077] Step S11: When the board is inserted into the backplane, the pre-charging module is first connected to the backplane, and the bus voltage is pulled up to the set pre-charging voltage.

[0078] After setting up the pre-charging module on the board, make sure that the pre-charging module is connected first to pull up the bus voltage. Wherein, the connector between the pre-charging module and the backplane is designed as a long pin, so as to en...

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PUM

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Abstract

The invention discloses a hot plug realization method, a hot plug system and a board card. The board card comprises a precharge module, a bus and a logic component, wherein a long needle is firstly connected with a rear panel when the precharge module is inserted, bus voltage rises to a preset precharge voltage, and the module can be disconnected from the rear panel after bus voltage lowers to the precharge voltage when the precharge module is pulled out; during insertion, after self voltage raises to precharge voltage, the bus is connected with the rear panel through middle needles, and the board card is electrified; when pulling out, after each component on the board card is reset, the bus is disconnected from the rear panel; during insertion, after the bus is connected with the rear panel and the logic component detects that a short needle is inserted, the logic component relieves the setting of the reset state of the component on the board card; during pulling out, when the connected short needle of the board card and the rear panel is disconnected, the logic component reset each component on the board card. The precharge module maintains precharge voltage in the process of connecting or disconnecting the bus so as to reduce current and voltage surges in the plug process and improve the reliability of the board card.

Description

technical field [0001] The invention relates to the technical field of circuit design, in particular to a method for realizing hot plugging, a hot plugging system and a board. Background technique [0002] Hot swapping is an operation that is often required to repair or replace the failed hardware device when the device has a hardware failure, especially when the device has a hardware failure and the entire device is located in the core network, and the entire device cannot be powered off. When removing a failed device, it is necessary to be able to hot-swap failed hardware. [0003] At present, the more common chassis-type equipment provides DC power for each board through the backplane, generally 12V or 48V. When a new board is hot-inserted, there is a power input terminal on the newly inserted board. Larger capacitance. like figure 1 As shown in , it is a schematic diagram of the capacitive effect of the bus-type connected board. Since the capacitor voltage cannot cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
Inventor 肖群李凤麟
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD