APT-4-11 is an unmanaged PoE network switch working as an extender (repeater) of the LAN network and PoE power supply. Most often used as an "active splitter" in situations when we need to run several network devices (e.g. several IP cameras) on one UTP cable or when an additional network branch is necessary. It is designed to work with any network devices, IP cameras and other devices powered by the PoE 802.3 at/af standard. The APT (Atte Power Tree) series devices provide compatibility with the IEEE 802.3 at/af/bt standards as PoE power receivers and IEEE 802.3 at/af on all output ports. After connecting the device to ports 2-4, the receiver is identified and, if it is a PoE-powered device, power will be turned on in the port. The device has a very small size which allows for easy installation in small spaces. The APT (Atte Power Tree) product series allows system components to be connected in a tree topology. APT devices can be powered directly by PoE. The power transmitted over a single UTP cable allows powering several IP cameras.