A POE (Power over Ethernet) multiplexer is a device that allows multiple Power over Ethernet (PoE) devices to be powered and connected to a network through a single Ethernet cable. It essentially combines both the data and power signals into one cable, enabling the simultaneous transmission of both to multiple devices.

Key Functions of a PoE Multiplexer:

1. Power Distribution: The multiplexer can deliver power to several devices through one Ethernet cable, ensuring that all connected devices receive the necessary power to operate.
2. Signal Consolidation: It can merge multiple network signals (such as from IP cameras, VoIP phones, wireless access points, etc.) over a single cable, reducing cable clutter.
3. Efficiency: Helps in reducing the need for separate power sources, making installations cleaner and potentially less costly.

Common Applications:

• IP Cameras: A PoE multiplexer can power multiple cameras and stream video data over the same network cable.
• VoIP Phones: Power multiple IP phones while simultaneously sending data signals for communication.
• Access Points: It powers multiple wireless access points in a network without requiring separate power adapters.