POE and Date Over 2 Wires Take your original two wires that worked with your old doorbell system and turn them into data and power wires for your Door Bird Unit. Makes installs a breeze and its much more reliable over wifi. TECHNICAL SPECIFICATIONS The DoorBird 2-Wire Ethernet PoE Converter is probably the worldâ€s smallest and most powerful converter. It allows you to transfer network data (Ethernet) and power (PoE) with a simple two-wire cable over long distances. For example; existing buildings with a simple two-wire bell wire can be equipped with network technology without having to retrofit any network cables. GENERAL Dimensions are 33 x 25 x 88 mm (H x W x D) or 1,30 x 0,98 x 3,46 in (H x W x D). PoE-Switch or PoE-Injector Power supply (IEEE 802.3 af/at), not included. Operating conditions are -25 to 55C / -13 to 131F. Speed Up to 60 mbit/s at maximum transmission range. Latency ~ 0.01ms. 1x RJ45, 2x screw terminals Connectors. PoE 802.3 af/at Mode-A and PoE +, up to 30 W. Data line pair 1/2 (+), 3/6 (-). Range are 80 meters / 262 feet with unshielded two-wire cable 160 meters / 525 feet with RG58. Scope of delivery is 1 x DoorBird 2-Wire Ethernet PoE. Converter Sender is 1 x DoorBird 2-Wire Ethernet PoE. Converter Receiver is 1 x DIN-Rail adapter. It requires 2 x Network cable, IEEE 802.3 af/at PoE Switch or PoE Injector, e.g. DoorBird Gigabit PoE Injector, D-Link DGS-1008P or TPLink TL-PoE150S Compatible with all DoorBird IP Video Door Stations. Approves CE, FCC, RoHS, IP50. Weight 140 g