Stackable switch, switch stacking system and cable hot plugging method

Abstract

The invention discloses a stackable switch, a switch stacking system and a cable hot plugging method. The stackable switch comprises a main board and a stacking subboard, wherein the main board comprises a data exchange application specific integrated circuit (ASIC); a stacking plug is arranged on the stacking subboard; the ASIC is connected with the stacking plug by a printed circuit board (PCB)cable; a protective circuit is arranged on the PCB cable between the ASIC and the stacking plug and used for plugging the stacking plug and a stacking plug on the stackable switch at the opposite end, and the stackable switch and the stackable switch at the opposite end are communicated with the PCB cable after being normally energized; and the PCB cable is cut off before the stacking plug and the stacking plug on the stackable switch at the opposite end are pulled out. The embodiment of the invention can prevent the damage of the hot plugging of the cable on the stackable switch.

Description

technical field [0001] The invention relates to communication technology, in particular to a stackable switch, a switch stacking system and a cable hot plugging method. Background technique [0002] With the development of modern ultra-large-scale integrated circuits, the feature size of complementary metal oxide semiconductor (hereinafter referred to as CMOS) transistors has shrunk sharply, and the thickness of the gate has also become thinner rapidly, which leads to the fact that CMOS transistors are not suitable for high The ability to withstand voltage and high current continues to decrease. For example: the gate thickness of a CMOS transistor with a size of 180nm is only about 4nm, and can only withstand a static voltage of about 10V. The static electricity phenomenon that is common in daily life, when it can be detected by the human body, its voltage has reached as high as 3000V, far exceeding the range that CMOS transistors can withstand. [0003] In the field of Et...

AI Technical Summary

Problems solved by technology

Moreover, during the hot plugging process of stack cables, external electrostatic charge carriers such as the human body may directly touch the stack socket, resulting in electrostatic discharge

Once an electrostatic discharge occurs, the instantaneous high voltage will pass through the stack socket and enter the switch, causing irreversible damage to the static-sensitive data exchange ASIC.

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