D-Link Systems, Inc.
D-Link 10GBASE-SR SFP+ Multimode Optical Transceiver, Duplex LC, up to 300 m (DEM-431XT)
Highlights:10GbE links up to 300 m over OM3 multimode fiber • Duplex LC connector • 850 nm optics • Hot-pluggable SFP+ module
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10GbE SFP+ Optical Transceiver: Supports 10GBASE-SR for short-reach fiber links in data centers and enterprise networks
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Reach by Fiber Grade: Up to 108 ft (33 m) on OM1, 269 ft (82 m) on OM2, or 984 ft (300 m) on OM3 multimode fiber
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Duplex LC Fiber Interface: Uses 850 nm optics with a duplex LC connector for multimode transmission
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Hot-Pluggable Design: Allows 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 Standard: Meets IEEE 802.3ae for 10GBASE-SR
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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 | 10GbE (10GBASE-SR) |
|---|---|
| Form Factor | Hot-pluggable SFP+ |
| Fiber Type | Multimode fiber (OM1, OM2 or OM3) |
| Optical Connector | Duplex LC |
| Rated Reach |
Up to 108 ft (33 m) on OM1 Up to 269 ft (82 m) on OM2 Up to 984 ft (300 m) on OM3 |
| Optical Wavelength | 850 nm |
| Operating Temperature | 32°F to 158°F (0°C to 70°C) |
| Standards & Compliance | IEEE 802.3ae, FCC Class B and RoHS |
| Switch Compatibility |
10GbE SFP+ ports: 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 |
|
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 |
|
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
10GbE Multimode Fiber Links up to 984 ft (300 m)
The D-Link DEM-431XT is a hot-pluggable 10GBASE-SR SFP+ optical transceiver. It uses 850 nm optics and a duplex LC connector to support 10GbE links up to 984 ft (300 m) over OM3 or OM4 multimode fiber.
Pair with D-Link Switches
Use with 10GbE SFP+ uplinks on supported DGS-3130, DGS-3630, DGS-1530, DGS-1250 and DGS-1510 models. The DEM-431XT also works with compatible SFP+ or SFP28 ports operating at 10GbE on supported DXS-3130 and DMS-3130 models. Contact D-Link to confirm support for other switch models. Switches and fiber cabling are sold separately.
Applications
Data Center Server and Storage Connectivity • Top-of-Rack Uplinks • Network Aggregation • Enterprise Wiring Closet Uplinks
5-Year Limited Warranty
10GbE SFP+
Hot-pluggable 10GBASE-SR optical transceiver
Multimode Fiber Reach
Up to 984 ft (300 m) over OM3 or OM4 multimode fiber
Duplex LC Connector
Uses 850 nm optics over two strands of multimode fiber
Compatible D-Link Switches
For 10GbE fiber uplinks on supported DGS, DXS and DMS switch models. Switch and cabling are sold separately.
Operating Temperature
32°F to 158°F (0°C to 70°C)
Standards & Compliance
IEEE 802.3ae, SFF-8432, 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-431XT
10GBASE-SR SFP+ Multimode Optical Transceiver
- Designed For
- 10GbE links over duplex multimode fiber
- Applications
- Data center connectivity, top-of-rack uplinks, network aggregation and enterprise wiring closet uplinks
Optical Link & Cabling
| Ethernet interface | 10GbE (10GBASE-SR) |
|---|---|
| Fiber type | 62.5/125 µm OM1 or 50/125 µm OM2, OM3 or OM4 multimode fiber |
| Optical connector | Duplex LC |
| Rated reach | OM1 up to 108 ft (33 m) OM2 up to 269 ft (82 m) OM3 or OM4 up to 984 ft (300 m) |
| Nominal wavelength | 850 nm |
| Transmit optical power | −5 to −1 dBm |
| Receive optical power | −11.5 to 0 dBm |
| Receiver sensitivity | −11.5 dBm |
| Minimum optical power budget | 6.5 dB |
Host Interface & Installation
| Host form factor | SFP+ |
|---|---|
| Installation | Hot-pluggable |
| Switch compatibility |
10GbE SFP+ uplinks: Supported DGS-3130, DGS-3630, DGS-1530, DGS-1250 and DGS-1510 models. Compatible SFP+ or SFP28 ports operating at 10GbE: Supported DXS-3130 and DMS-3130 models. 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 | 300 mA |
| Dimensions | 13.7 × 55.4 × 8.5 mm (W × D × H) |
| Weight | 0.71 oz (20 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% |
| Storage humidity | 5% to 95% |
Standards, Compliance & Warranty
| Ethernet standard | IEEE 802.3ae (10GBASE-SR) |
|---|---|
| Module specifications | MSA compliant, SFF-8432 form factor |
| Regulatory & environmental | FCC Class B, ICES-003 Class B and RoHS |
| Warranty | 5-Year Limited Warranty |
Frequently Asked Questions
What is the DEM-431XT used for?
The DEM-431XT is a 10GBASE-SR SFP+ optical transceiver for short-reach 10GbE links over multimode fiber. Applications include top-of-rack uplinks, network aggregation and enterprise wiring closet uplinks.
What fiber and connector does it use?
The DEM-431XT uses 850 nm optics and a duplex LC connector. Use two strands of 62.5/125 µm OM1 or 50/125 µm OM2, OM3 or OM4 multimode fiber.
How far can the link reach?
Rated reach depends on the fiber grade. The module supports up to 108 ft (33 m) on OM1, 269 ft (82 m) on OM2 or 984 ft (300 m) on OM3 or OM4. Actual reach depends on total optical loss across the link.
Which D-Link switches can I use it with?
Use 10GbE SFP+ uplinks on supported DGS-3130, DGS-3630, DGS-1530, DGS-1250 and DGS-1510 models. Supported DXS-3130 and DMS-3130 models can also use the module in compatible SFP+ or SFP28 ports operating at 10GbE.
Contact D-Link to confirm support for other switch models.
What should I check before deploying the link?
Confirm that both host ports support their respective optics at 10GbE and that the far-end optic uses 10GBASE-SR. Verify the fiber grade, duplex LC polarity and total optical loss, including connectors, splices and patch panels.
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-431XT transceiver is sold individually. Switches and fiber cabling are sold separately.
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