What interfaces does a PoE switch have

A PoE switch primarily features RJ45 Ethernet ports that deliver both data and power, with some models also offering fiber optic interfaces for uplinks.Ethernet PortsThe main interface on a PoE switch is the RJ45 Ethernet port, which supports both network data and electrical power delivery to connected devices such as IP cameras, VoIP phones, wireless access points, and IoT devices . These ports can vary in number, typically ranging from 4 to 48 ports, depending on the switch model and intended network size . Each port may support different PoE standards:PoE (IEEE 802.3af): up to 15.4W per portPoE+ (IEEE 802.3at): up to 30W per portPoE++ (IEEE 802.3bt): up to 60W or 100W per port Ethernet ports can also support different network speeds, including Fast Ethernet (100 Mbps) and Gigabit Ethernet (1000 Mbps), with Gigabit being the most common for modern PoE switches .Fiber Optic InterfacesSome PoE switches include SFP (Small Form-factor Pluggable) or fiber optic uplink ports. These are used to connect the switch to other switches or network backbones over longer distances, providing high-speed data transfer without PoE functionality. Fiber interfaces are especially useful in enterprise or industrial networks where long-distance connectivity is required .PoE Passthrough and Management InterfacesCertain PoE switches support PoE passthrough, allowing the switch to receive power from an upstream PoE source and then supply it to downstream devices . Managed PoE switches may also include console ports or web-based management interfaces for configuration, monitoring, and power allocation control, enabling centralized management of connected devices .SummaryIn essence, a PoE switch provides:RJ45 Ethernet ports for data and power deliveryOptional fiber/SFP ports for uplinksManagement interfaces for configuration and monitoring (on managed switches)PoE passthrough capability on specialized models These interfaces allow PoE switches to simplify network deployment by combining power and data transmission over a single cable, reducing the need for separate electrical wiring and enhancing flexibility in device placement .