Motorized varifocal lens for easy installation and monitoring. Lens Type Varifocal lens, motorized lens, 2.8 to 12 mm. PoE: IEEE 802.3at, Class 4, max. Lens Mount Integrated. input amplitude: 3.3 Vpp, input impedance: 4.7 KΩ, interface type: non-equilibrium.
eBay