DC-S3583HRX and DC-S3883HRX are new speed dome camera models. These speed dome cameras take more PoE power consumption than the existing speed dome camera models.

Power consumption of the popular speed dome models DC-S1263 and DC-S1283 series ranges from 10.6W to 24.3W(Heater on). However, DC-S3583HRX and DC-S3883HRX takes maximum 68.6W with heaters and IR LEDs on.

So common PoE switches with IEEE 802.3af or IEEE 802.3at cannot provide enough power for the cameras.

Please consider using the power adaptor provided in the package of the cameras or PoE injectors capable of satisfying power consumption of the cameras.