D-Link DGS-1250-28XMP 28-Port Gigabit PoE+ Smart Managed Switch with 10G Uplinks

Gigabit PoE Access with Room for a Faster Backbone The D-Link DGS-1250-28XMP connects 24 Gigabit Ethernet devices and provides four dedicated 10G SFP+ slots for faster uplinks. IEEE 802.3af/at power on the copper ports supports compatible access points, cameras and phones, with a 370W budget shared across the switch. It is a practical access-layer choice when the network needs both powered connections and managed traffic controls. A web interface, full command-line administration and SNMP provide different ways to configure and monitor the network. VLAN, traffic-priority, access-control and static-routing features help organise a business installation. The switch does not replace the internet gateway or every router/firewall function, and connected PoE loads must be sized against both per-port and total limits. Highlights Access Ports and Uplinks 24 × 10/100/1000 Mbps RJ45 PoE+ ports 4 × 10G SFP+ slots for suitable modules or cables Separate console interface for administration Power Planned Around the Devices 370W shared PoE budget IEEE 802.3af/at; up to 30W per powered port Time-based PoE and PD-Alive support Managed Business Traffic VLANs, QoS and access-control lists IPv4/IPv6 static routing within published limits Web GUI, CLI, SNMP and cable diagnostics Key Features Keep Endpoint Links and Uplinks in Balance 24 copper ports provide Gigabit access for connected equipment, while four SFP+ slots support a suitable 10G fibre or direct-attach connection. The slots are supplied empty; optical modules and DAC cables are selected for the equipment and distance at both ends. A 10G uplink does not make the individual copper access ports run at 2.5G or 10G. Size the PoE Budget Before Installation Each of the 24 powered copper ports supports up to 30W under IEEE 802.3at, but the switch's total budget is 370W. Add the actual maximum requirements of the connected devices and leave suitable design headroom. The budget is not the port count multiplied by 30W, and the switch does not provide an unlimited power source. Separate Users and Prioritise Important Traffic VLAN segmentation and access-control rules help organise users and applications. Eight traffic queues per port, priority classification and bandwidth controls allow the administrator to plan how time-sensitive traffic shares the links. Auto Voice VLAN and Surveillance Mode can assist supported voice and ONVIF-camera deployments when correctly configured. Use Static Routing Where It Fits the Design The switch provides static IPv4 and IPv6 routing, with up to four IP interfaces, 124 IPv4 static routes and 50 IPv6 static routes. These limits suit a defined network design; they are not a promise of every enterprise routing protocol or internet-security function. Keep the gateway, firewall and network segmentation planned as a complete system. Keep Local Management and Recovery Practical Use the browser interface, command-line controls or supported SNMP monitoring to administer the switch. Cable diagnostics, system logs, dual software images and dual configuration files help maintain the installation. Correct access restrictions, maintained firmware and protected management networks remain important; a managed switch is not a guarantee against every network fault or attack. Plan Rack Space and the Entire Power Chain The chassis measures 440 × 250 × 44 mm and has a device weight of 3.46 kg. Allow suitable mounting, ventilation and power access rather than using the bare switch dimensions as parcel measurements. The internal supply accepts 100–240 V AC at 50/60Hz. Include the switch's own consumption and connected PoE loads when sizing a UPS. Summary The DGS-1250-28XMP combines 24 powered Gigabit access ports, four 10G SFP+ slots and a 370W PoE budget with practical management and traffic controls. It suits a planned business access network that needs more than unmanaged switching, with uplink accessories, PoE loads and gateway services selected for the actual installation. Frequently Asked Questions Are All Ports 10-Gigabit?ExpandCollapse No. The 24 RJ45 access ports support 10/100/1000 Mbps. The four SFP+ slots provide the 10G uplink interfaces for suitable modules or cables. The console is an administration interface, not another Ethernet data port. Can Every PoE Port Supply 30W at the Same Time?ExpandCollapse Each powered port supports up to 30W, but all connected loads share 370W. Whether a particular group of devices can operate together depends on their power requirements, cable conditions and the configured budget. Plan the total load before installation. Is 370W the Power Available to Connected Devices?ExpandCollapse The manufacturer specifies 370W as the shared PoE output budget. This is separate from total AC consumption, which also includes the switch itself and conversion losses. Use the appropriate published AC-consumption figures when planning a UPS or electrical circuit. Does It Include SFP+ Modules or DAC Cables?ExpandCollapse The uplink slots need separately selected compatible optics, fibre leads or DAC cables. Check the interface, connector, supported module and reach at both ends. An empty slot is not a complete optical connection. Is This a Physical Stacking Switch?ExpandCollapse The 10G SFP+ interfaces are documented as uplinks. Physical stacking is not specified for this XMP configuration. If a shared physical stack is required, choose a platform whose exact hardware and firmware documentation confirms that function. Which Warranty Is Provided?ExpandCollapse The hardware warranty is 5 years. Maintain the installation within its power and environmental requirements, with appropriate ventilation, network protection and compatible connected equipment. 続きを読む