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D-Link DEM-311GT Single Mode LC SFP Module

2,800

Key Features

  • D-Link DEM-311GT
  • Single Mode SFP
  • 10km Fiber Range
  • 1.25Gbps Data Rate
  • LC Duplex Port
  • MSA Compliant

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Technical Specifications

General Information

ModelD-Link DEM-311GTProduct TypeSingle Mode LC SFP ModuleCategoryNetwork and RouterSub-CategorySFP Module and Fiber

Networking Standard

Network Standard1000BASE-LX (IEEE 802.3z)Data Transmission Rate1.25 GbpsOptical Receiver Sensitivity-18 dBm (max)Transmission DistanceUp to 10 km (Single Mode Fiber)

Interface & Connector

Interface TypeSFP+ MSA CompliantConnectorLC Duplex

Power Characteristics

Operating Voltage3.1V – 3.5VMaximum Voltage6.0VMaximum Current300 mA

Environmental Conditions

Operating Temperature0°C to 70°CStorage Temperature-40°C to 85°COperating Humidity10% – 90%

Physical Details

Dimensions (L × W × H)13.4mm × 56.4mm × 10.35mmWeight16.5 g

Warranty

Manufacturer Warranty1 Year

Product Description

D-Link DEM-311GT Single Mode LC SFP Module

Network lag across long fiber links slowing down your office network? The D-Link DEM-311GT Single Mode LC SFP Module solves stable gigabit fiber connectivity challenges quickly.

Reliable fiber networking is critical for modern infrastructure. The D-Link DEM-311GT Single Mode LC SFP Module delivers dependable long-distance fiber connectivity for enterprise networks, ISP deployments, campus infrastructure, and professional networking setups.

Inside the Network and Router category, this SFP module provides stable optical transmission using the 1000BASE-LX standard. It fits seamlessly into compatible switches and routers with SFP ports, allowing administrators to extend network links across long distances without signal degradation.

For businesses, IT departments, and networking professionals in Bangladesh, this compact fiber module delivers consistent performance in demanding networking environments.

D-Link DEM-311GT Single Mode LC SFP Module Overview for Gigabit Fiber Networks

The D-Link DEM-311GT Single Mode LC SFP Module supports gigabit fiber connectivity using the 1000BASE-LX optical networking standard. It transmits data across single-mode fiber links with consistent signal integrity.

This module operates at a 1.25Gbps transmission rate, making it suitable for enterprise LAN infrastructure, campus networking, and fiber backbone connections.

Its SFP+ MSA compliant interface allows simple plug-and-play installation in compatible networking equipment.

Typical deployments include:

  • Enterprise switches connecting distant network cabinets
  • Campus backbone fiber connections
  • ISP network distribution nodes
  • High-density switch environments in data centers

The LC duplex fiber connector keeps connections compact and organized inside racks.

Optical Transmission Stability with the D-Link DEM-311GT Single Mode LC SFP Module

Fiber networking reliability depends on signal sensitivity and optical consistency. The D-Link DEM-311GT performs efficiently in long-distance fiber environments.

The module supports transmission distances up to 10 kilometers over single-mode fiber, suitable for office buildings, campuses, or distributed networks.

Key optical characteristics include:

  • Support for 1000BASE-LX fiber networking standard
  • Optical receiver sensitivity rated up to -18dBm
  • Stable optical transmission for enterprise infrastructure
  • Compatibility with LC duplex fiber patch cables

Network administrators value this stability when deploying fiber uplinks between switches.

Long-distance fiber connections remain stable even across complex network topologies.

Compact Hardware Design for Switch and Router Integration

The D-Link DEM-311GT Single Mode LC SFP Module is designed for high-density networking environments. Its compact structure allows installation in multiple SFP ports within enterprise switches.

Physical characteristics include:

  • Compact industrial SFP module design
  • Lightweight construction for switch compatibility
  • Dimensions optimized for standard SFP slots
  • Durable housing for long-term network deployments

This makes the module ideal for crowded rack cabinets and high-port network switches commonly used in IT infrastructure.

The LC connector format keeps fiber cabling organized and easy to maintain.

Electrical Efficiency and Power Operation

Network infrastructure often runs continuously for years. Power efficiency becomes an important factor when deploying dozens of fiber modules.

The D-Link DEM-311GT operates within a stable voltage range suitable for professional networking hardware.

Power characteristics include:

  • Operating voltage range between 3.1V and 3.5V
  • Maximum supported voltage up to 6.0V
  • Low operating current requirements
  • Stable power behavior inside enterprise switches

These electrical properties support continuous operation in enterprise networking environments without unnecessary power draw.

For network administrators running multiple switches, efficient modules reduce overall thermal stress inside equipment racks.

Thermal Reliability in Enterprise Networking Environments

Networking hardware must operate reliably in varying temperatures, especially in equipment rooms or telecom cabinets.

The D-Link DEM-311GT Single Mode LC SFP Module operates within professional environmental ranges suitable for commercial networking deployments.

Operational tolerance includes:

  • Operating temperature between 0°C and 70°C
  • Storage temperature from -40°C to 85°C
  • Humidity tolerance up to 90% during operation

These environmental capabilities allow stable fiber networking performance even in warm telecom rooms or dense rack installations.

IT teams running switch clusters in offices or campus server rooms benefit from this reliability.

Real Networking Use Cases in Bangladesh

The D-Link DEM-311GT Single Mode LC SFP Module fits several real-world networking scenarios common in Bangladesh.

Campus and Educational Networks

Universities and training centers often connect multiple buildings using fiber. This module supports those long-distance links without requiring expensive networking upgrades.

ISP Distribution Networks

Internet service providers deploy fiber infrastructure across towns and districts. Single-mode modules like the DEM-311GT maintain reliable backbone connections.

Corporate Office Infrastructure

Many offices in Dhaka run structured fiber networks between floors or buildings. The module integrates easily with compatible D-Link switches.

Networking Labs and Technical Training

Students building lab environments benefit from affordable fiber modules for real optical networking practice.

For network engineers and IT professionals, this module provides dependable fiber connectivity without unnecessary complexity.

Warranty and Trusted After-Sales Support in Bangladesh

Networking hardware should always come from reliable retailers with proper support.

The D-Link DEM-311GT Single Mode LC SFP Module includes a 1-year manufacturer warranty, protecting buyers from hardware defects.

At PCB Store, customers receive reliable after-sales support across Bangladesh. The team handles warranty claims, troubleshooting, and technical guidance directly through their Dhaka service channel.

That support matters for businesses operating mission-critical networks.

Availability may fluctuate as fiber networking equipment often moves quickly in the SFP Module and Fiber segment of the Network and Router category.

Stock is regularly updated at PCB Store Dhaka, serving IT professionals, network integrators, and enterprise buyers across Bangladesh.

If you're planning fiber deployments or expanding existing infrastructure, securing the D-Link DEM-311GT Single Mode LC SFP Module early helps avoid installation delays.

Delivery Charge Info

Inside Dhaka: 80

Outside Dhaka: 130

FAQs

  • Is the D-Link DEM-311GT compatible with all SFP ports?

    The module follows SFP+ MSA standards, so it works with many switches supporting 1000BASE-LX fiber SFP modules. Compatibility depends on the switch firmware and vendor restrictions.

  • What fiber cable is required for the D-Link DEM-311GT?

    The module requires single-mode fiber optic cable with an LC duplex connector. Using multimode fiber will not provide proper signal performance.

  • How far can the D-Link DEM-311GT transmit data?

    The module supports fiber transmission distances up to 10 kilometers when used with compatible single-mode fiber cables and properly configured networking equipment.

  • Does the D-Link DEM-311GT generate high heat?

    No. The module operates within a standard temperature range suitable for enterprise switches. Its low power requirements help maintain stable thermal conditions inside networking racks.

  • Can the D-Link DEM-311GT work with routers?

    Yes. Any router or switch with compatible SFP slots supporting 1000BASE-LX modules can use this fiber module for optical network links.

  • D-Link DEM-311GT vs DEM-310GT: What is the difference?

    The DEM-311GT supports single-mode fiber for long-distance links, while modules like the DEM-310GT are designed for multimode fiber and shorter transmission distances.

  • What is the power consumption of the D-Link DEM-311GT?

    The module operates on low voltage between 3.1V and 3.5V and draws minimal current. This makes it efficient for continuous networking deployments.

  • Is the D-Link DEM-311GT suitable for enterprise networks?

    Yes. Many enterprises deploy this module in fiber backbone connections between switches, server rooms, and campus buildings.

  • What is the price of D-Link DEM-311GT in Bangladesh?

    The D-Link DEM-311GT price in Bangladesh may change depending on stock availability. For the latest pricing and availability, check directly with PCB Store Dhaka.

  • Is the D-Link DEM-311GT available at PCB Store?

    Yes. The module is available at PCB Store, a trusted networking hardware supplier in Bangladesh offering warranty support and nationwide after-sales service.

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