D-Link 28-porttinen 2.5G Multi-Gigabit Smart Managed -kytkin 4 x 10G SFP+ -portilla

The D-Link DMS-1250-28/E is a managed Multi‑Gigabit Ethernet switch designed for small to medium business and enterprise network deployments. It offers twenty-four 2.5G RJ‑45 downlink ports and four 10G SFP+ uplink ports, delivering a switching capacity of 200 Gbit/s and a MAC address table of 16,000 entries. The switch supports industry standards such as IEEE 802.1Q and IEEE 802.3bz, provides PoE options, and is rack‑mountable for integration into standard server racks.

Advantages

The DMS-1250-28/E provides multi‑Gigabit performance over existing cabling for higher throughput without rewiring, two 10G SFP+ uplinks for aggregation or connection to storage, and PoE+ / PoE++ options to power a range of network devices. It includes advanced Layer 2 features (LACP, STP/RSTP/MSTP, ACL), 6 kV surge protection on 2.5G ports, and can be managed via web GUI or the Nuclias Network Controller for centralized administration.

Suitable for

• Wi‑Fi 6 access point aggregation and backhaul
• Small to medium business access layer switching
• High‑performance edge switching for offices or branch sites
• PoE deployment for IP phones, cameras and wireless APs

Key specifications

• Ports: 24 × 2.5G RJ‑45 downlink, 4 × 10G SFP+ uplink
• Switching capacity: 200 Gbit/s
• MAC address table: 16,000 entries
• Surge protection: 6 kV on all 2.5G Ethernet ports
• PoE options: PoE+ (30 W) or PoE++ (90 W) models available
• Management: Managed L2 web‑based GUI, Nuclias Network Controller support
• Layer 2 features: LACP (802.3ad), STP/RSTP/MSTP, ACL, Loopback Detection
• Authentication: AAA support for RADIUS/TACACS+
• Form factor: Rack‑mountable, stackable
• Standards: IEEE 802.3ae, 802.3ab, 802.1p, 802.1Q, 802.3an, 802.3az, 802.3bz, 802.3u, 802.3z
• Color: Black
• Weight: 3.473 kg

How to use

Install the DMS-1250-28/E into a standard 19" rack using the supplied brackets, connect uplink SFP+ modules to your aggregation switch or storage, and connect client devices to the 2.5G RJ‑45 ports. Configure IP addressing and management access via the web GUI or Nuclias Network Controller, enable required Layer 2 features (VLANs, LACP, STP) and set PoE policies if using a PoE model. Monitor port status and traffic through the management interface and apply firmware updates as provided by D‑Link.

Recommendations

For Wi‑Fi 6 deployments, connect access points to the 2.5G ports to avoid bottlenecks and use the 10G SFP+ uplinks for aggregation. If deploying PoE devices with high power requirements, choose the PoE++ model and plan total budgeted PoE power to avoid overload.