Passive PoE (Power over Ethernet) is a simple and effective method for transmitting power along with a data connection over a standard Ethernet cable. Since passive PoE does not use active power management, which means it does not provide automatic voltage negotiation between the source and receiver, it is essential that both the transmitter (e.g., PoE injector or switch) and receiver (e.g., network camera or access point) are compatible with the voltage level that passive PoE provides.