D-Link DEM-431XT Compatible 10GBASE-SR SFP+
D-link compatible DEM-431XT - Key Features
- Compatibility: D-link
- Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 400 m
- Guaranteed Link Budget: 6.1 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 1.25 Gbps - 11.32 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
D-link DEM-431XT Price
SKU:10G-SFP-300-MS
In Stock - Ships Next Business DayD-link compatible DEM-431XT Specifications
Form Factor | SFP+ |
Media Type | Multi-Mode Fiber (MMF) -OM3/OM4/OM5 |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 400 m |
Guaranteed Link Budget | 6.1 dB |
TX Wavelength | 850 nm |
RX Wavelength | 850 nm |
Supported Data Rate | 1.25 Gbps - 11.32 Gbps |
Supported Ethernet Applications | 10G Ethernet (10.31Gbps), Gigabit Ethernet (1.25 Gbps) |
Supported Fiber Channel Applications | 10G Fiber Channel (10.52 Gbps), 1G Fiber Channel (1.0625 Gbps), 2G Fiber Channel (2.125 Gbps), 4G Fiber Channel (4.25 Gbps), 8G Fiber Channel (8.5 Gbps) |
SDH/SONET Standards | STM-64 (9.95Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | 20 nm (840-860 nm) |
Rx Wavelength Bandwidth | 20 nm (840-860 nm) |
Minimum Transmitting Power | -5 dBm |
Maximum Transmitting Power | 0 dBm |
Receiver Sensitivity | -11.1 dBm |
Receiver Overload | 0 dBm |
Dispersion | 110 ps/nm |
Transmitter Type | VSCEL Laser |
Receiver Type | PIN photodiode |
Temperature Range | Standard 0°-70°C |
Power | +3.3V single power supply |
Compliance | CE,Class 1 FDA and IEC60825-1 Laser Safety Compliant,RoHS,SFF-8431,SFP MSA |
D-link compatible DEM-431XT Datasheet
v3Complete technical specifications and product details
D-link compatible DEM-431XT Description
D-Link DEM-431XT is a 10GBASE-SR SFP+ transceiver for D-Link's managed switch portfolio, including the DGS-1510, DGS-3630, DXS-1210-10TS, DXS-1210-28T, DXS-3600-32S, and the DXS-3610 stackable aggregation series. The XT suffix identifies the standard-temperature (0 to 70 degC) model; the DEM-431XT-DD variant that appears on some D-Link data sheets is the same optic with an explicit DDM callout in the model string, and DEM-431XT-C is the 10-pack commercial bundle.
DGS-3630-28SC / 52TC core switches and DXS-3600-32S aggregation switches accept the module in any of their SFP+ ports for short-reach uplinks between wiring-closet DGS-1510-28XMP PoE edge stacks and the core. On D-Link Network Assistant and web GUI, the transceiver appears under Maintenance then Transceiver Information with DDM readings for Tx power, Rx power, module temperature, and bias current. EdgeOptic's compatible is programmed with D-Link vendor strings, so the module is validated by DGS/DXS firmware without generating an unknown-transceiver event.
The optical design implements IEEE 802.3ae 10GBASE-SR. An 850 nm VCSEL transmitter, PIN photodiode receiver, and LC/UPC duplex interface deliver a minimum 6.1 dB link budget sufficient for 300 m on OM3 multimode fiber and 400 m on OM4. On D-Link switches with dual-rate SFP+ ports, the port can be configured for 1G or 10G operation; the module supports both host rates. SFF-8472 DDM is supported for D-Link management read-out and for standard SNMP polling on ENTITY-SENSOR-MIB, so third-party monitoring platforms such as PRTG, LibreNMS, and Zabbix can poll optical-power telemetry in line with how they treat the OEM module.
Adjacent D-Link 10G SFP+ SKUs include DEM-432XT (10GBASE-LR, 10 km single-mode) and DEM-433XT (10GBASE-ER, 40 km single-mode). Use DEM-431XT when the fiber plant is OM3/OM4 multimode inside the building or a single data-centre row; switch to DEM-432XT for inter-building runs on 9/125 um single-mode. Verify both endpoints of a 10G link use the same standard before mixing modules across a DXS-3600 core and DGS-1510 edge stack. For procurement help, contact our sales team at https://edgeoptic.com/contact.
Frequently Asked Questions
Which D-Link switch models accept the DEM-431XT?
DEM-431XT fits any SFP+ slot on DGS-1510-20/28X/28XMP/52X, DGS-3630-28SC/52TC, DXS-1210-10TS/12SC/12TC/28T/28S, DXS-3600-32S/32SE, and the DXS-3610-54T/54S stackable aggregation switches. It also works in the 10GbE uplink modules for DGS-3130 series edge switches and the newer DXS-1210 Smart-Pro family.
Is DEM-431XT the same part as DEM-431XT-DD or DEM-431XT-C?
Yes, the three share the same optical design and switch compatibility. DEM-431XT-DD is the same transceiver with an explicit DDM label in the ordering code used on later D-Link datasheets, and DEM-431XT-C is a 10-pack bundle SKU for bulk procurement. The EdgeOptic compatible works in every port that accepts any of the three.
How does it differ from DEM-432XT and DEM-433XT?
DEM-431XT is 10GBASE-SR on multimode, 300 m over OM3 and 400 m over OM4. DEM-432XT is 10GBASE-LR at 1310 nm for 10 km over single-mode, and DEM-433XT is 10GBASE-ER at 1550 nm for 40 km over single-mode. All three are SFP+ SFF-8432 form-factor modules, but the fiber type is not interchangeable between them.