Managed Switch Ruijie Networks RG-NBS3100-48GT4SFP-P 48 Ports PoE L2

The Ruijie Networks RG-NBS3100-48GT4SFP-P is a managed L2 switch offering 48 Gigabit Ethernet (10/100/1000) RJ-45 ports and 4 SFP slots for fiber uplinks. It supports Power over Ethernet (PoE) to power connected devices directly over network cabling and provides a switching capacity of 56 Gbit/s for aggregated traffic. Built for rack deployment and centralized management, this black-colored switch implements standard Layer 2 protocols for reliable segmentation and forwarding.

Advantages

This managed switch provides a large port density with integrated PoE to power devices such as access points and IP phones without separate power adapters. The four SFP slots enable flexible uplink options to aggregation switches or fiber networks. Support for standard Layer 2 protocols improves network stability and fast convergence for spanning tree and link aggregation. The 56 Gbit/s switching capacity ensures that traffic between ports is handled efficiently in typical small to medium enterprise environments.

Suitable for

• Small and medium office LANs requiring PoE for wireless access points and VoIP phones
• Network edge switches connecting desktop devices, cameras and printers
• Environments needing fiber uplinks to distribution or core switches
• Rack-mounted deployments in server rooms or wiring closets

Key specifications

• Switch type: Managed Layer 2
• RJ-45 ports: 48 × Gigabit Ethernet (10/100/1000)
• SFP slots: 4 for fiber uplinks
• PoE support: Yes (ports supply power over Ethernet)
• Switching capacity: 56 Gbit/s
• Networking standards: IEEE 802.1D, IEEE 802.1s, IEEE 802.1w
• Product colour: Black

How to use

Install the switch in a rack or on a stable surface and connect power according to the manufacturer's installation guidelines. Use Cat5e or Cat6 cables to connect end devices to the Gigabit RJ-45 ports and insert compatible SFP modules into the SFP slots for fiber connections. Configure management settings through the device's web interface, CLI, or a network management system to set VLANs, spanning tree, link aggregation and PoE parameters. Monitor port status and traffic to confirm correct operation.

Recommendations

Assign PoE only to ports connected to devices that require power and verify the total PoE budget when populating multiple powered devices. Separate management traffic using a dedicated management VLAN and use SFP uplinks for resilient connections to the distribution layer. Regularly update firmware and monitor device logs to maintain stable operation.