A Power over Ethernet (PoE) switch is a network device that transmits data and electrical power over a single Ethernet cable. It simplifies installations by eliminating the need for separate power sources for connected devices like IP cameras, wireless access …
CCTV systems can operate without computers through standalone DVR/NVR setups, wireless security cameras with SD cards, and battery-powered IoT devices. These configurations use embedded processing, mobile apps, and cloud storage instead of PC-based monitoring. Modern systems often combine local storage …