A device that adds power to an Ethernet cable for Power over Ethernet (PoE) equipment. Although Ethernet switches are available with PoE capability, millions of regular "non-PoE" switches are in ...

The midspan power injector is useful in installations where there is already an Internet connection and it is too expensive to change out or upgrade the Internet switch/router to provide PoE. Figure 1 ...

PoE injectors are part of larger PoE systems that include network devices such as routers and switches. Using an uninterruptible power supply (UPS), power is injected at the network's head end. If ...