(I just saw that some people need weak current solutions. I have quite a few here, but they are still in the company. Those solutions belong to the property of the company. It is convenient for everyone. Of course, the plan I refer to is also relatively old. The new plan belongs to the enterprise. I will upload it later when I have the opportunity! In addition, I have a lot of reference solutions for system integration. I have just completed the maintenance plan for a switch of an enterprise (Khan, the maintenance of a switch needs to be bid separately).)