D-Link DEM-S2801SR 25GbE Multi-Mode SFP28 Transceiver
Fibre Connectivity Specified for the Link The DEM-S2801SR is a 25GbE SFP28 optical transceiver for compatible network equipment. It uses a duplex LC connection and 50/125 µm OM3/OM4 multimode fibre to support up to 70 m on OM3 or 100 m on OM4. 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. Multi-Mode fibre; 70 m OM3 / 100 m OM4 maximum reach. Link Specification 850 nm optical wavelength. IEEE 802.3by; 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 50/125 µm OM3/OM4 multimode fibre. The link needs the correct cable, connectors and a matching optical specification at the other end. The two reach figures depend on the multimode fibre grade; choose the cable before treating the headline distance as achievable. 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 850 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-S2801SR gives supported 25GbE equipment a defined multi-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 50/125 µm OM3/OM4 multimode fibre with duplex LC connectors. Reach depends on the fibre grade: up to 70 m on OM3 and 100 m on OM4. 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.
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D-Link DEM-S2801SR 25GbE Multi-Mode SFP28 Transceiver
Deskripsi
Fibre Connectivity Specified for the Link
The DEM-S2801SR is a 25GbE SFP28 optical transceiver for compatible network equipment. It uses a duplex LC connection and 50/125 µm OM3/OM4 multimode fibre to support up to 70 m on OM3 or 100 m on OM4. 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.
- Multi-Mode fibre; 70 m OM3 / 100 m OM4 maximum reach.
Link Specification
- 850 nm optical wavelength.
- IEEE 802.3by; 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 50/125 µm OM3/OM4 multimode fibre. The link needs the correct cable, connectors and a matching optical specification at the other end. The two reach figures depend on the multimode fibre grade; choose the cable before treating the headline distance as achievable.
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 850 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-S2801SR gives supported 25GbE equipment a defined multi-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?
Use 50/125 µm OM3/OM4 multimode fibre with duplex LC connectors. Reach depends on the fibre grade: up to 70 m on OM3 and 100 m on OM4.
Will It Work in Any Pluggable Port?
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?
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?
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?
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?
No. Fibre patch leads and the matching equipment or module at the other end are selected separately.
Spesifikasi
D-Link DEM-S2801SR 25GbE Multi-Mode SFP28 Transceiver
The DEM-S2801SR is a 25GbE SFP28 module with a duplex LC optical interface for multi-mode fibre. Its maximum reach depends on fibre grade, so check the installed OM classification before selecting the link. Confirm the exact host model, supported port mode and matching optical endpoint. The operating range is 0°C to 70°C. Fibre leads and any second endpoint are purchased separately; connector shape alone does not establish compatibility.
| Specification | Details |
|---|---|
| Optical Link | |
| Network Rate | 25GbE Ethernet |
| Form Factor | SFP28 |
| Connector | Duplex LC |
| Fibre | 50/125 µm OM3/OM4 multimode |
| Maximum Reach | OM3 70 m; OM4 100 m |
| Wavelength | 850 nm |
| Optical Standard | IEEE 802.3by |
| Connection | Two-fibre transmit/receive link; not single-fibre BiDi |
| Host and Installation | |
| Compatibility | Supported host model, firmware and port mode required |
| Hot Pluggable | Yes, in supported equipment; affected link interrupts during replacement |
| Compliance | MSA and RoHS |
| Required Separately | Suitable fibre cable and matching optical endpoint |
| Physical and Environmental | |
| Dimensions | 57.3 × 13.7 × 8.5 mm |
| Module Weight | 25 g |
| Supply Voltage | 3.3 V DC from host |
| Operating Temperature | 0°C to 70°C |
| Storage Temperature | −40°C to 85°C |
| Humidity | Operating and storage 5–95% RH non-condensing |
| Certifications | FCC Class B, ICES-003 Class B, CE Class B, VCCI Class B and LVD |
| Warranty | 5 years |