A PoE extender (often referred to as a PoE repeater) is a practical device for installations where we need to run PoE-powered devices further than the standard length of a single cable section allows. Such a switch/PoE switch acts as an active splitter: it regenerates the signal and transmits PoE power further, allowing you to expand monitoring, Wi-Fi, or automation in your LAN without adding power supplies along the way — everything still goes through a single UTP cable. The Lanberg series offers two DIN PoE extenders: both have 4 RJ45 ports in a 1× input port (PoE IN) + 3 output ports (PoE OUT) configuration, and differ in PoE class and bandwidth. This description applies to the DIN-GE4-BT-90W version — a model with Gigabit Ethernet ports (4× 1000BASE-T) and PoE++ (802.3bt) support with a total PoE budget of 85 W. For comparison: the DIN-FE4-AT-30W variant is PoE+ (802.3at/802.3af) and Fast Ethernet 100 Mbps, with a PoE budget of 28 W. Key features of the DIN-GE4-BT-90W: 4 Ethernet ports / 4 PoE ports (including PoE IN + PoE OUT) and 4× 1000BASE-T, i.e. full gigabit for more demanding IP installations. PWR and Link/Act LED indicators — quick field service and immediate port operation verification. Extends Ethernet signal and PoE power by another 100 meters. DIN rail (TS-35) mounting with metal clip — ideal for switchboards and telecommunications cabinets.
