L3 PoE+ Switch 24 Gigabit Ports + 4x 10G SFP+, Managed, 375 W – DCN S5750E-28X-P-SI-R2

L3 PoE+ switch with OSPF/BGP routing and 10G uplinks — DCN S5750E-28X-P-SI-R2

The managed DCN S5750E-28X-P-SI-R2 switch of the L3 class: 20 Gigabit RJ45 PoE+ ports, 4 Combo ports (RJ45/SFP) and 4 10G SFP+ ports, with a 375 W PoE budget. Full routing (static, RIP, OSPF, BGP, PIM) and a 128 Gbps fabric make it the distribution layer for campus, ISP and 10G installations — one device instead of a switch and a router.

How many devices does the 375 W budget power?

The 375 W budget powers a complete set of 20 PoE+ cameras or access points with a margin (20 cameras with 4–8 MP is 120–240 W). Four Combo ports offer flexibility — as PoE copper or SFP fibre. Power starts up in <10 s, and the current PoE load is visible in the panel.

Proven manufacturer, support in Europe

DCN designs and manufactures enterprise- and carrier-class switches and has had a European branch since 2009 — DCN Europe, part of the Salumanus group, owner of the Fibermarkt store. You buy directly through the official distribution channel: with a 24-month warranty handled within the EU, technical support and an engineer's help in choosing the configuration before purchase. DCN products meet high standards of interoperability and reliability — the switch works on the open IEEE 802.3 and 802.1Q standards and interoperates with other manufacturers' equipment.

Key features

• 20 Gigabit RJ45 PoE+ ports + 4 Combo ports (RJ45/SFP) + 4 10G SFP+ ports
• 375 W PoE budget (IEEE 802.3af/at), up to 30 W per port, real-time monitoring
• Full L3 routing: static, RIP, OSPF v2/v3, BGP/BGP4+, multicast PIM (IPv4/IPv6)
• 128 Gbps fabric, 95 Mpps forwarding, 16K MAC table, 1.5 MB packet buffer
• Advanced L2: VLAN 802.1Q (4K), MSTP, LACP, ERPS, ACL, DHCP snooping
• VSF stacking — multiple switches as a single logical device
• Management: Web GUI, Telnet/SSH, SNMP v1/v2c/v3, sFlow, port mirroring
• Service ports: console, out-of-band management, USB
• Active cooling, metal rack 1U chassis

Applications — for installers, integrators and administrators

IP / CCTV surveillance: power and transmission of cameras from a single device; IGMP snooping and broadcast traffic isolation keep the streams smooth, and a dedicated VLAN cuts the camera network off from the rest of the infrastructure. The 10G SFP+ uplinks carry the traffic aggregation to the recorder/NVR or the network core over fibre.

WiFi and office networks: access points and VoIP phones powered directly from the PoE+ ports, VLANs for departments and guests, bandwidth control and QoS for critical services.

ISP and access networks: ring protection (ERPS/MRPP) and link aggregation provide redundancy, and VSF stacking simplifies managing multiple switches as a single device.

Businesses and institutions: an all-in-one solution — power, switching and 10G uplinks in a single 1U chassis, with L2 security (ACL, DHCP snooping, IP Source Guard).

DCN S5750E-28X-P-SI-R2 — front panel

Management and routing like Cisco — familiar CLI

The S5750E series uses a command-line interface (CLI) in the Cisco IOS style — you configure VLAN, L3 routing (OSPF), PoE and 10G uplinks as on a Cisco router, with no need to learn a new syntax. Below is an example configuration with routing:

Example syntax similar to Cisco IOS. You can also do the same in the clear Web GUI panel — with no CLI knowledge.

DCN S5750E-28X-P-SI-R2 versus the Cisco CBS350 and Aruba class

An equivalent of managed L3 PoE switches with 10G uplinks — with full OSPF/BGP routing at the price of the L2+ class:

Other manufacturers' trade names serve only to identify the device class and belong to their respective owners. Competitor parameters per public datasheets; indicative prices from comparison sites (H1 2026, may change).

Technical specification

S5750E series — L3 routing at every scale

The same L3 routing and management across the series — choose the port count and PoE budget for the site:

Frequently asked questions (FAQ)