Infrastructure PoE Planner
Estimate real-world power consumption for IP cameras, VoIP phones, and Wireless Access Points (WAPs) to prevent switch brownouts.
VHF/UHF IP Cameras
802.3af - Class 2 (~7W)WiFi 6 Access Points
802.3at - PoE+ (~25W)VoIP Desk Phones
802.3af - Class 1 (~4W)Why PoE Budgets Fail
Power over Ethernet (PoE) follows strict standards like 802.3af (15.4W) and 802.3at (30W). However, many engineers make the mistake of adding up the *advertised* consumption without considering line loss.
Voltage Drop: In a 100-meter copper run, several watts can be lost as heat. If your switch is running at 95% capacity, a single high-definition camera starting its "Night Vision" IR sensors could pull enough extra current to reboot the entire switch.