What is PoE (Power over Ethernet) Switch?
A PoE (Power over Ethernet) Switch is a network switch which can provide PoE (Power over Ethernet) technology. A PoE (Power over Ethernet) Switch can provide both power and data over Ethernet twisted pair cable simultaneously. A PoE (Power over Ethernet) Switch can simplify the cabling and avoid electrical accessories, cables and electrical installation works. A PoE (Power over Ethernet) Switch can be managed or unmanaged, and comes in different Ethernet port numbers.
Normally PoE (Power over Ethernet) Switches with 8, 12, 24, 48 ports are available for purchase from the market.
PoE (Power over Ethernet) with WiFi can provide an electrical cable free network.
Main advantage of PoE (Power over Ethernet) Switch is that it can provide power even from a UPS (Uninterrupted Power Supply) machine.
A PoE (Power over Ethernet) Switch looks similar to a normal network switch. Below images show a 24 port and 48 port Cisco PoE (Power over Ethernet) Switches.