But the switch is PoE

A PoE switch is a network switch that delivers both data and electrical power over a single Ethernet cable to connected devices.What is a PoE Switch?

A PoE (Power over Ethernet) switch functions like a regular network switch by routing data between devices, but it also supplies electrical power through the same Ethernet cable to PoE-enabled devices such as IP cameras, VoIP phones, wireless access points, and IoT devices . This eliminates the need for separate power adapters and simplifies network installation, especially in locations where power outlets are limited or difficult to install .

PoE Standards and Power Levels

PoE switches come in different standards, each providing varying power levels per port:

• PoE (IEEE 802.3af): Supplies up to 15.4 watts per port, suitable for basic devices like VoIP phones and stationary cameras .
• PoE+ (IEEE 802.3at): Provides up to 30 watts per port, ideal for devices like PTZ cameras, IP phones, and alarm systems .
• PoE++ (IEEE 802.3bt): Delivers up to 60–100 watts per port, supporting high-power devices such as multi-radio access points, digital signage, and building automation systems . The choice of switch depends on the power requirements of the connected devices and the total power budget of the switch .

Managed vs. Unmanaged PoE Switches

• Managed PoE switches allow advanced network control, including traffic segmentation, monitoring, and power management for each port .
• Unmanaged PoE switches provide basic plug-and-play functionality, suitable for simpler setups where advanced configuration is not required .

Using a PoE Switch as a Standard Switch

A PoE switch can also function as a normal network switch if the connected devices do not require power over Ethernet . In this case, it simply routes data like a regular switch, making it versatile for mixed network environments.

Benefits of PoE Switches

• Simplified cabling: One cable carries both data and power.
• Cost savings: Reduces the need for electrical wiring and outlets.
• Flexibility: Devices can be installed in locations without nearby power sources.
• Centralized power management: Easier monitoring and control of connected devices . PoE switches are widely used in business networks, smart buildings, and security systems, providing both connectivity and power efficiently.