10GBase-SR SFP+ Transceiver, DDM, 80/300m DEM-431XT-DD

Product Overview

The D-Link DEM-431XT-DD (Model: DEM-431XT-DD) is an enterprise-class 10GBASE-SR Multi-Mode Fiber (MMF) Small Form-factor Pluggable Plus (SFP+) optical transceiver module engineered for high-density 10 Gigabit Ethernet server connections, core switch backbones, and data center interconnects. Operating over multi-mode optical fiber cabling at an 850 nm wavelength, it delivers full-duplex 10 Gbps data transmission speeds reaching up to 300 meters on OM3/OM4 laser-optimized fiber (and up to 80 meters on legacy OM1 fiber).

Equipped with Digital Diagnostics Monitoring (DDM / DOM), the D-Link DEM-431XT-DD allows network administrators to monitor real-time operational parameters such as optical output power, input power, temperature, laser bias current, and supply voltage directly from switch management interfaces. Built with a durable metal enclosure that minimizes Electromagnetic Interference (EMI), it features a standard duplex LC connector, hot-pluggable architecture, and full IEEE 802.3ae 10GBASE-SR compliance for seamless integration with D-Link managed switches (including DGS-1250, DGS-1510, and DXS-1210 series).

D-Link DEM-431XT-DD Product Features

• D-Link DEM-431XT-DD delivers high-speed 10 Gbps full-duplex optical transmission complying with IEEE 802.3ae 10GBASE-SR and SFF-8431 specs.

• D-Link DEM-431XT-DD incorporates Digital Diagnostics Monitoring (DDM) for real-time telemetry tracking of optical power, temperature, and operating voltage.

• D-Link DEM-431XT-DD supports optical transmission distances up to 300 meters over OM3/OM4 multi-mode fiber ($50/125\,\mu\text{m}$) and up to 80 meters over legacy OM1 ($62.5/125\,\mu\text{m}$) fiber.

• D-Link DEM-431XT-DD operates at an 850 nm VCSEL transmitter wavelength utilizing a standard duplex LC fiber connector interface.

• D-Link DEM-431XT-DD features a hot-pluggable SFP+ footprint housed in an EMI-resistant metal enclosure for live port expansion without switch downtime.

D-Link DEM-431XT-DD Product Condition

• D-Link DEM-431XT-DD is sold as Brand New Sealed in original individual factory packaging with manufacturer anti-static ESD protection intact.

Specifications

D-Link DEM-431XT-DD Pros & Benefits

• Real-Time DDM Monitoring: Allows IT managers to proactively diagnose optical fiber link degradation and temperature spikes before outages occur.

• Ultra-High 10G Throughput: Eliminates bandwidth bottlenecks between core enterprise switches and high-performance server racks.

• Hot-Swappable Operational Efficiency: Can be plugged in or extracted on live 10G SFP+ ports without requiring a switch reboot.

• Low Power & Cool Operation: Consumes under 1 Watt of power, reducing thermal density inside core switch cabinets.

D-Link DEM-431XT-DD Variation Price Table

D-Link DEM-431XT-DD Suitable Application Areas

• Data Center Interconnects: Provides 10 Gbps ultra-fast links between core rack switches and high-density virtualization server arrays.

• High-Speed Enterprise Backbones: Connects aggregation switches to central core switches across multi-story buildings.

• Storage Area Networks (SAN): Delivers low-latency 10G optical interconnectivity for NAS and SAN network storage appliances.

• Fiber Optic Campus Networks: Links nearby server closets operating on multi-mode fiber backbones up to 300 meters apart.

D-Link DEM-431XT-DD User Guide & Support Manuals Link

For technical datasheets, switch compatibility guides, and DDM manual instructions, visit official manufacturer resources:

• D-Link Official Technical Support & DEM-431XT Product Documentation

Online Purchase & Countrywide Delivery:

D-Link DEM-431XT-DD is in stock and available at Potent.it Store with fast Countrywide Delivery across Kenya, servicing Nairobi, Mombasa, Kisumu, Nakuru, Eldoret, and all major commercial centers.

D-Link DEM-431XT-DD What is in the Box

• D-Link DEM-431XT-DD 10GBASE-SR SFP+ Optical Transceiver Module

• Protective Rubber Optical Port Dust Cap

• Quick Setup Guide & Warranty Documentation

D-Link DEM-431XT-DD Frequently Asked Questions (FAQs)

Q1: What does DDM mean on the D-Link DEM-431XT-DD transceiver?

A: DDM stands for Digital Diagnostics Monitoring (also known as DOM). It enables real-time monitoring of critical metrics such as optical input/output power, temperature, laser bias current, and supply voltage.

Q2: What cable type and distance does the DEM-431XT-DD support?

A: It uses Multi-Mode Fiber (MMF) with duplex LC connectors. It reaches up to 300 meters on OM3/OM4 fiber, up to 400 meters on OM5, and up to 80 meters on legacy OM1 ($62.5/125\,\mu\text{m}$) fiber.

Q3: Is the DEM-431XT-DD compatible with 1G SFP ports?

A: No, the DEM-431XT-DD is a 10G SFP+ transceiver module and requires 10G SFP+ dedicated ports on switches or network interface cards.

Q4: Is Countrywide Delivery available when purchasing from Potent.it Store?

A: Yes, Potent.it Store provides fast door-to-door countrywide shipping across Kenya for all D-Link transceivers, switches, patch panels, and networking accessories.

D-Link DEM-431XT-DD Creativity Summary

The D-Link DEM-431XT-DD provides an enterprise-grade 10GBASE-SR SFP+ optical transceiver module featuring 10 Gbps speeds, an 850 nm wavelength, integrated Digital Diagnostics Monitoring (DDM), and multi-mode fiber reach up to 300 meters. Built in a low-EMI metal enclosure with hot-pluggable architecture and SFF-8472 compliance, it equips network engineers, data center admins, and IT managers across Kenya with an efficient, real-time monitored 10G optical uplink solution.