So short answer: Only use straight cables but ensure that PoE devices get their power directly from a PoE capable sender, and that a PoE sender is not sending its power to anything but a PoE receiving device. However, when it comes to connecting multiple switches, things can get a bit more complicated. Can you link them together? The short answer is yes, but there are. A Power over Ethernet (PoE) switch is a device that enables the transmission of both power and data over a single Ethernet cable. In. Avoid common mistakes that can damage your network equipment and get clear tips on safe connections. It utilizes efficient low-voltage 43 to 57 VDC over twisted-pair network cabling, such as Category 6A, Category 6, and Category 5e. One of the biggest advantages of copper twisted pair Ethernet cable (also called Category cable) is it's ability to perform two critical functions at the same time: When these functions are simultaneously performed, it is known as PoE or Power over.
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