As to Security engineering, how to make video surveillance cameras better cost savings, power supply is very important
First, centralized power supply
Centralized power supply refers to the centralized installation of source equipment in the power room and battery room, communication power distribution through the unified transformation of the power supply to each communication device
Second, point-to-point power supply
Point-to-point power supply refers to directly from the monitoring room leads to 220V AC, next to the camera connected to a separate DC12V power supply, then connected to the surveillance camera, the bracket can be installed.
Third, PoE power supply
PoE power supply refers to the technology of providing DC power supply to other devices without any modification to the existing Ethernet Cat.5 cabling infrastructure, which is mainly applied to the HD network digital monitoring system.