https://collsam.com/cctv-source/cctv-power/pigtails/dhi-vtnc3000a/
DHI-VTNC3000A Network Controller Duhua Technology White Network
Apr 17, 2026 - The DHI-VTNC3000A Network Controller is a specialized two-wire device that connects a mixture of indoor monitors and outdoor stations.
network controllerdhiduhuatechnologywhite