D-Link Systems, Inc.
D-Link 25GBASE-LR SFP28 Single-Mode Optical Transceiver, Duplex LC, up to 10 km (DEM-S2810LR)
Highlights: 25GbE links up to 10 km over 9/125 µm single-mode fiber • Duplex LC connector • 1310 nm optics • Hot-pluggable SFP28 module
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25GbE SFP28 Optical Transceiver: Supports 25GBASE-LR for long-reach fiber links in data centers and enterprise networks
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Up to 6.21 mi (10 km) of Reach: Supports links over 9/125 µm single-mode fiber
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Duplex LC Fiber Interface: Uses a duplex LC connector and 1310 nm optics for single-mode transmission
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Hot-Pluggable Design: Supports module replacement while the host switch remains powered on
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Operating Temperature: Rated for 32°F to 158°F (0°C to 70°C)
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Ethernet and Module Standards: Meets IEEE 802.3cc and applicable multi-source agreement (MSA) specifications
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Regulatory and Environmental Compliance: FCC Class B and RoHS compliant
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5-Year Limited Warranty
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Trusted Business-Class Reliability: With 40 years of networking experience, D-Link offers Ethernet switches and optical interconnects for building and expanding data center networks
For business-class solutions, reseller pricing, distribution availability and partner access program, Please reach out to our business solutions team:(888)354-6574 or solutions@us.dlink.com
Product Specifications
| Ethernet Interface | 25GbE (25GBASE-LR) |
|---|---|
| Form Factor | Hot-pluggable SFP28 |
| Fiber Type | 9/125 µm single-mode fiber |
| Optical Connector | Duplex LC |
| Rated Reach | Up to 6.21 mi (10 km) |
| Optical Wavelength | 1310 nm |
| Operating Temperature | 32°F to 158°F (0°C to 70°C) |
| Standards & Compliance | IEEE 802.3cc, MSA, FCC Class B and RoHS |
| Switch Compatibility |
25GbE SFP28 ports: DTS-5000-56S, DXS-3130-28, DXS-3130-28P, DXS-3130-32S, DMS-3130-30TS and DMS-3130-30PS. Contact D-Link to confirm support for other switch models. |
Switches and fiber cabling are sold separately.
US Domestic Orders To Contiguous 49 States
- Orders are processed Monday – Friday, excluding holidays.
- Orders using Fedex SmartPost are estimated to arrive within 5 to 7 business days (not including Sunday or holidays) following credit card authorization and order processing.
- Please allow 1 to 3 business days to process order.
- Orders placed after 10:00 am Pacific Standard Time will not be processed until the following business day.
- D-Link will use their discretion on using Fedex SmartPost carriers only.
- Sales tax are not counted towards the merchandise subtotal. Only one promotional code can be used per order.
Shipping Methods and Rates
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Order Amount |
Fedex SmartPost |
Estimated Arrival Time |
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Over $30.00 |
FREE |
5-7 business days |
- Free shipping on orders over $30 valid (not including sales tax) on Fedex SmartPost shipping only. Not valid on previous purchases. Valid for limited time only.
Shipping Timeline
- Shipping time does not include processing time of 1-3 business days.
- Estimated arrival times are not guaranteed. Weather delays and other unforeseen circumstances may impact delivery time.
- Fedex does not deliver on Sundays or holidays.
D-Link Holidays
Packages will not be processed or shipped on the following acknowledged holidays.
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Holiday |
Acknowledged Date |
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New Year’s Day |
Monday, January 1, 2024 |
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President’s Day |
Monday, February 19, 2024 |
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Good Friday |
Friday, March 29, 2024 |
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Memorial Day |
Monday, May 27, 2024 |
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Fourth of July |
Thursday, July 4, 2024 |
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Labor Day |
Monday, September 2, 2024 |
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Thanksgiving Day |
Thursday, November 28, 2024 |
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Day after Thanksgiving |
Friday, November 29, 2024 |
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Christmas Day |
Wednesday, December 25, 2024 |
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New Year's Eve |
Tuesday, December 31, 2024 |
Additional Information
- We do not offer shipping to P.O. Boxes.
- We are currently not offering shipping to the following locations:
- Alaska
- American Samoa
- Micronesia
- Guam
- Hawaii
- Marshall Islands
- Northern Mariana Islands
- Palau
- Puerto Rico
- S. Virgin Islands
- APO/FPO
Returns - Physical Products
Products purchased directly from the official shop.us.dlink.com site may be returned within 30 days of the delivery date, subject to the terms and conditions below.
To initiate a return, customers must contact D-Link to obtain a Return Merchandise Authorization (RMA) and return instructions. Returns received without an approved RMA may not be processed.
Returned products must be received in good condition and include:
- the unit with an intact serial/UPC label
- original power supply
- all accessories originally included
- Proof of purchase or invoice
We strongly recommend including the original packaging and documentation. If items are missing, damaged, or show signs of excessive use, the refund amount may be reduced accordingly.
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Restocking Fees
Returned products may be subject to a restocking fee of up to 15%, at D-Link’s discretion, based on product condition, completeness, and the nature of the return.
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Return Shipping
Unless the product is confirmed or deemed defective by the D-Link technical support team, or the return is due to a shipping error by D-Link, the customer is responsible for return shipping costs.
We recommend using a carrier that provides a tracking number. D-Link is not responsible for items that are lost or damaged in transit.
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Defective or Incorrect Products
If a product is confirmed or deemed defective by the D-Link technical support team, or an incorrect item was shipped, D-Link will provide return instructions and cover applicable return shipping costs.
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Refund Processing
Approved refunds will be issued to the original payment method once the returned product has been received and inspected.
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Refund Timing
Refunds are typically processed within seven (7) to ten (10) business days of D-Link’s receipt of the returned product. Please note that your financial institution may take additional time to post the refund to your account.
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Final Sale Items
Products clearly marked as Final Sale are not eligible for return, exchange, or refund.
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Services
All sales of services, including technical support or service plans, are final and non-refundable.
Consumer Rights
Nothing in this policy limits any rights you may have under applicable consumer protection laws that vary by state.
To start a return:
Use the contact methods available at: https://support.dlink.com/search.aspx
25GbE Single-Mode Fiber Links up to 6.21 mi (10 km)
The D-Link DEM-S2810LR is a hot-pluggable 25GBASE-LR SFP28 optical transceiver for long-reach fiber links. It uses 1310 nm optics and a duplex LC connector to support 25GbE links up to 6.21 mi (10 km) over 9/125 µm single-mode fiber.
Pair with D-Link Switches
Use with 25GbE SFP28 ports on the DTS-5000-56S and supported DXS-3130 Series and DMS-3130 Series models. Contact D-Link to confirm support for other switch models. Switches and fiber cabling are sold separately.
Applications
Data Center Connectivity • Network Aggregation • Enterprise Fiber Backbones • Campus Building-to-Building Links
5-Year Limited Warranty
25GbE SFP28
25GBASE-LR optical transceiver for long-reach 25GbE fiber links
Reach up to 6.21 mi (10 km)
Supports links over 9/125 µm single-mode fiber
Duplex LC Connector
Uses 1310 nm optics over two strands of single-mode fiber
Compatible D-Link Switches
For 25GbE SFP28 ports on the DTS-5000-56S and supported DXS-3130 and DMS-3130 models
Operating Temperature
32°F to 158°F (0°C to 70°C)
Standards & Compliance
IEEE 802.3cc, MSA, FCC Class B, ICES-003 Class B and RoHS
Data rates and link distances are specified maximums. Actual performance and reach may vary with host equipment, software version, port configuration, cable or fiber type, link loss and operating conditions. Switches and cabling are sold separately.
Technical Specifications
DEM-S2810LR
25GBASE-LR SFP28 Single-Mode Optical Transceiver
- Designed For
- 25GbE links over duplex single-mode fiber
- Applications
- Data center uplinks, network aggregation, enterprise fiber backbones and campus links
Optical Link & Cabling
| Ethernet interface | 25GbE (25GBASE-LR) |
|---|---|
| Fiber type | 9/125 µm single-mode fiber |
| Optical connector | Duplex LC |
| Rated reach | Up to 6.21 mi (10 km) |
| Nominal wavelength | 1310 nm |
| Transmit optical power (Rev. A1) | −5 to +2 dBm |
| Receive optical power (Rev. A1) | −13.3 to +0.5 dBm |
| Receiver sensitivity (Rev. A1) | −13.3 dBm |
Host Interface & Installation
| Host form factor | SFP28 |
|---|---|
| Installation | Hot-pluggable |
| Switch compatibility |
25GbE SFP28 ports on the DTS-5000-56S, DXS-3130-28, DXS-3130-28P, DXS-3130-32S, DMS-3130-30TS and DMS-3130-30PS. Contact D-Link to confirm support for other switch models. Switches and fiber cabling are sold separately. |
| Supply voltage | 3.3 V |
| Maximum input current (Rev. A1) | 300 mA |
| Digital diagnostics (DDM, Rev. A1) | N/A |
| Dimensions | 2.26 × 0.54 × 0.33 in (57.3 × 13.7 × 8.5 mm) |
| Weight | 0.88 oz (25 g) |
Operating & Storage Conditions
| Operating temperature | 32°F to 158°F (0°C to 70°C) |
|---|---|
| Storage temperature | −40°F to 185°F (−40°C to 85°C) |
| Operating humidity | 5% to 95%, non-condensing |
| Storage humidity | 5% to 95%, non-condensing |
Standards, Compliance & Warranty
| Ethernet standard | IEEE 802.3cc |
|---|---|
| Module specifications (Rev. A1) | MSA compliant (SFF-8402, SFF-8432 and SFF-8472) |
| Regulatory & environmental | FCC Class B, ICES-003 Class B and RoHS |
| Warranty | 5-Year Limited Warranty |
Frequently Asked Questions
What is the DEM-S2810LR used for?
The DEM-S2810LR is a 25GBASE-LR SFP28 optical transceiver for 25GbE links over single-mode fiber. Applications include data center uplinks, enterprise fiber backbones and campus links between buildings.
What fiber and connector does it use?
The module uses a duplex LC connector and 1310 nm optics over two strands of 9/125 µm single-mode fiber.
How far can the link reach?
The rated reach is up to 6.21 mi (10 km) over single-mode fiber. Actual reach depends on total optical loss across the link, including connectors, splices and patch panels.
Which switches can I use it with?
Use the 25GbE SFP28 ports on the DTS-5000-56S, DXS-3130-28, DXS-3130-28P, DXS-3130-32S, DMS-3130-30TS or DMS-3130-30PS.
Contact D-Link to confirm support for other switch models.
What should I confirm before deploying the link?
Confirm that both host ports support their respective optics at 25GbE and that the optic at the far end uses 25GBASE-LR. Check the duplex LC fiber path and verify that its total loss is within the optical limits for the modules at both ends.
Can I replace the transceiver while the switch is powered on?
Yes. The module is hot-pluggable and can be installed or removed while the switch remains powered on. Removing the module interrupts the link it serves.
What’s included with the transceiver?
The DEM-S2810LR transceiver is sold individually. Switches and fiber cabling are sold separately.
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