Summary: in this tutorial, you will learn about C variables that allow you to manipulate data in your program. A variable is a meaningful name of data storage location in computer memory. When using a variable, you refer to a memory address of computer.
Overheating of the CPU caused by a temperature problem is definitely a bad sign as it can destroy the processor and can cause instabilities in the hardware of the system. This can lead to it rebooting as well.
What that means is that the device (camera etc.) will check the power coming in and if it doesnât meet the device requirements it wonât power up. 802.3at actually does a hand shake between the sending and receiving POE devices and wont power up if the receiving device doesnât acknowledge.