Sensors are reaching every corner of the smart building, but the power infrastructure does not. Lighting has transitioned to low power LEDs opening up new applications that traditional power cabling does not cater well for. Making a building “smart” can involve an expensive cabling retrofit. One technology is solving all these problems and fast becoming a cornerstone of the smart building – Power over Ethernet (PoE). The principal responsibility of an Ethernet cable has been telecommunications. However, they are also capable of delivering enough electricity to support low power devices. These characteristics open up a world of possibilities for energy managers and facility managers because they allow Internet of Things (IoT) devices, not least lighting, to be placed without getting overly concerned about their proximity to present electric wiring. It essentially doubles the chances of easily powering a device. In addition, with so many in-building systems now generating, sharing and ingesting data the underlying IP […]