D-Link 28-portový 2.5G Multi-Gigabit PoE++ Smart Managed switch so 4 x 10G SFP+ portami

The D-Link DMS-1250-28P/E is a managed Multi‑Gigabit Ethernet switch offering 24 downlink 2.5G PoE ports and four 10G SFP+ uplink ports. Designed for business networks, it supports PoE IEEE 802.3af/at/bt with a total power budget of 475W, a switching capacity of 200 Gbit/s and a MAC address table of 16,000 entries. Rack-mountable and black in color, the switch includes AC power and features surge protection and multiple management interfaces for integration into existing environments.

Advantages

The DMS-1250-28P/E delivers multi‑Gigabit performance over existing cabling to support higher throughput for devices such as Wi‑Fi 6 access points while offering two 10G SFP+ uplinks for high‑speed aggregation or storage connectivity. Its PoE++ capability (up to 90W per port options supported) and a 475W power budget allow the switch to power a variety of network devices. Additional features include 6 kV surge protection on 2.5G ports, managed layer‑2 functions, LACP link aggregation, static routing, STP family support and AAA authentication.

Suitable for

• Enterprise and SMB network edge deployments requiring higher-than-1G access speeds
• Wi‑Fi 6 access point connectivity and power via PoE
• Aggregation or uplink to 10G core switches or storage using SFP+

Key specifications

• Model: DMS-1250-28P/E
• Ports: 24 x 2.5G RJ‑45 PoE downlink, 4 x 10G SFP+ uplink
• PoE: IEEE 802.3af/at/bt support; total power budget 475W
• Switching capacity: 200 Gbit/s
• MAC address table: 16,000 entries
• Surge protection: 6 kV on 2.5G Ethernet ports
• Management: Managed L2 Web-based, Nuclias Network Controller support, CLI
• Layer 2 features: LACP (802.3ad), STP/RSTP/MSTP, ACL
• Physical: Rack-mountable, stackable, weight 4.165 kg, colour: Black
• Standards: IEEE 802.3ab/bz/az/ae/z/an, IEEE 802.1p, IEEE 802.1Q

How to use

Mount the switch in a standard 19" rack using the included brackets and connect AC power. Connect downstream devices (PCs, access points, IP phones) to the 2.5G RJ‑45 PoE ports to provide data and power. Use the 10G SFP+ ports for uplink connections to core switches or storage; insert compatible SFP+ transceivers or DACs. Configure management settings via the Web GUI, Nuclias Network Controller, or CLI to assign VLANs, enable LACP, set QoS and configure ACLs and routing features as needed.

Recommendations

For optimal performance, use Cat5e or better cabling for 2.5G links, deploy PoE budgeting according to device power requirements, and connect at least one 10G SFP+ uplink for aggregation to the core network. Regularly update firmware and use Nuclias or the Web management interface to monitor port status and PoE consumption.