D-Link DEM-S2810LR 25GbE Single-Mode SFP28 Transceiver

Fibre Connectivity Specified for the Link The DEM-S2810LR is a 25GbE SFP28 optical transceiver for compatible network equipment. It uses a duplex LC connection and 9/125 µm single-mode fibre to support a specified reach of up to 10 km. It provides an optical connection choice for supported switches, servers and aggregation equipment. Match the module to the host’s supported SFP28 port, fibre type and optical standard at both ends. The 0°C to 70°C operating range applies to the module; the whole installation must also stay within the ratings of the switch, cables and enclosure. A pluggable form factor does not by itself guarantee interoperability with every vendor or every port. Highlights Optical Connection 25GbE networking using an SFP28 module. Duplex LC fibre connection. Single-Mode fibre; up to 10 km specified reach. Link Specification 1310 nm optical wavelength. IEEE 802.3cc; MSA and RoHS compliant. Hot-pluggable module for supported equipment. Physical Design Operating temperature 0°C to 70°C. 25 g module weight. 5-year warranty. Key Features Choose the Right Optical Medium This module is designed for 9/125 µm single-mode fibre. The link needs the correct cable, connectors and a matching optical specification at the other end. Assess the installed fibre and connector loss as well as route length before selecting the link. Match the Host Port The SFP28 form factor is intended for supported 25GbE equipment. Check the exact switch or adapter model, supported firmware, port mode and compatibility list. A 25G SFP28 module is not automatically supported by a similarly shaped 10G SFP+ slot. A Defined Fibre Link The optical interface uses 1310 nm light with duplex LC connectors. Two fibre paths carry transmit and receive traffic. Match the optical standard and link budget at both ends; this is not a single-fibre bidirectional module, a copper adapter or a cable that converts incompatible Ethernet standards. Temperature Rating Where It Matters The module operates from 0°C to 70°C. This is the module’s commercial operating range, so check cabinet airflow and the host’s thermal requirements. It should not be treated as a hardened outdoor transceiver just because it is metal. Service a Supported Port Hot-pluggable construction allows insertion or replacement in equipment that supports the feature. Work on the affected link still interrupts that connection, so plan a maintenance window or a tested redundant path where necessary. Keep fibre end faces clean and use the protective caps when the module is not connected. Plan the Complete Optical Connection The offer is an optical module. Fibre patch leads, a second compatible endpoint and any required switch or adapter are separate. Before deployment, confirm connector type, optical loss, fibre grade and the host compatibility matrix so the complete connection is specified rather than relying on the module’s headline distance alone. Summary The DEM-S2810LR gives supported 25GbE equipment a defined single-mode fibre connection. Select the correct host port, matching optical endpoint and fibre cable for a reliable installation. Frequently Asked Questions Which Fibre Type Does It Use?ExpandCollapse Use 9/125 µm single-mode fibre with duplex LC connectors. The manufacturer specifies a maximum reach of 10 km under the required link conditions. Will It Work in Any Pluggable Port?ExpandCollapse No. Confirm the host explicitly supports this 25GbE SFP28 module and the required port mode. A physically similar socket does not guarantee compatibility. Does It Use One Fibre Strand?ExpandCollapse No. It uses a duplex LC connection with separate transmit and receive fibre paths. It is not a single-fibre bidirectional module. Is It an Industrial-Temperature Module?ExpandCollapse No industrial-temperature claim is made for this module. Its specified operating range is 0°C to 70°C. Can It Be Replaced While the Switch Is Powered?ExpandCollapse It is hot pluggable when used in supported equipment. The affected link disconnects during replacement; plan maintenance or a redundant path if interruption matters. Are Fibre Cables Included?ExpandCollapse No. Fibre patch leads and the matching equipment or module at the other end are selected separately. 阅读更多