High power emitting device with wired power for operation with OSI-90. Requires 12/24VDC power from a power source conforming to EN54/4. Compatible with OSI-90. Operating voltage 20 to 30 VDC. Current consumption @ 24 VDC approx. 800µA. Operating temperature: -10° C to 55° C. Relative humidity: 10 to 95% (not condensed). Dimensions. A: 136mm H: 208mm F: 96mm.