TP-Link Gigabit Multi-Mode LC SFP Module

TP-Link TL-SM311LM | Gigabit Multi-Mode LC SFP Module

The TP-Link TL-SM311LM Gigabit Multi-Mode LC MiniGBIC SFP Module extends network reach for managed and smart switches, enabling connections up to 550 metres over multi-mode fibre. Designed for cost-effective distance extension, it’s ideal for expanding LAN infrastructure without replacing existing hardware.

Key Specifications

Extended Network Reach Without Hardware Replacement

The TL-SM311LM connects directly to compatible TP-Link switches, allowing you to extend network coverage to several hundred metres. This eliminates the need to install new switches or run long copper cables, saving both time and infrastructure costs.

Plug-and-Play Installation for Quick Deployment

With its MiniGBIC form factor and LC connector, the module installs in seconds into any compatible SFP port. No configuration is required—once inserted, it’s ready to transmit data at 1.25 Gbps, making it perfect for rapid network expansion.

Reliable Performance for Industrial and Commercial Use

Built to IEEE 802.3z standards and supporting CSMA/CD and TCP/IP protocols, the TL-SM311LM delivers stable, error-free data transmission. Its 850 nm wavelength is optimised for multi-mode fibre, ensuring consistent performance in demanding environments.

Cost-Effective Distance Extension

By allowing you to use existing multi-mode fibre infrastructure, the TL-SM311LM reduces the need for expensive new cabling or hardware. Users can deploy fibre modules only where needed, lowering overall network costs while maintaining high-speed connectivity.

Box Contents

• SFP Module TL-SM311LM
• Installation Guide

Check Before You Buy

• Confirm your switch has a compatible SFP port and supports the TL-SM311LM module.
• Verify your existing cabling is multi-mode fibre (50/125 µm or 62.5/125 µm).
• Check that your network infrastructure supports Gigabit (1000BASE-SX) over multi-mode fibre.
• Ensure your environment requires a maximum reach of 550 metres.

Frequently Asked Questions

Q: What type of fibre cable is required?

A: The module requires multi-mode fibre, either 50/125 µm or 62.5/125 µm.

Q: Can I use this with any network switch?

A: It is designed for TP-Link managed/smart switches with compatible SFP ports.

Q: What is the maximum data rate?

A: The TL-SM311LM supports data rates up to 1.25 Gbps.

Q: How far can this module transmit data?

A: Maximum transmission distance is 550 metres over multi-mode fibre.

Q: Is the module hot-swappable?

A: Yes, it can be inserted or removed while the switch is powered on.

The Consultant’s Verdict & Warranty

The TP-Link TL-SM311LM is a practical solution for extending Gigabit networks over multi-mode fibre without replacing existing switches. It’s well-suited for businesses and installers needing reliable, cost-effective distance extension up to 550 metres. Covered by the standard Manufacturer Warranty.