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TP-LINK TL-SM311LM SFP MiniGBIC Fiber Transceiver - 1. 25Gbps LC/UPC - 850nm 550m Multi-Mode

SKU: TL-SM311LM
UPC: 021111376143
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$23.99
Warranty Information: Covered by Manufacturer
Condition: New
Width: 1.23 (cm)
Height: 1.23 (cm)
Depth: 1.23 (cm)

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Product Features

Description

Product Overview

The TP-LINK TL-SM311LM is a compact SFP MiniGBIC fiber transceiver module engineered for reliable Gigabit Ethernet connectivity in data networking and optical network environments. This module delivers a 1.25Gbps data rate using the 1000Base-SX standard, making it a practical solution for extending network reach with fiber optic cabling.

Designed with a single LC/UPC connector, the TL-SM311LM operates at an 850nm wavelength over multi-mode fiber. It supports full-duplex communication and is built to be hot-pluggable, allowing for easy installation and replacement without network downtime. The module comes with protective dust plugs to maintain optical bore integrity until deployment.

Optics
25GbE
Link Speed
LCOptical Fiber
Module Format & Speed
Module TypeSFP (mini-GBIC)
Data Rate1.25 Gigabit Ethernet
Network Technology1000Base-SX
Optical Specifications
Connector TypeLC
Wavelength850nm
Fiber Mode SupportedMulti-mode
Reach & Compatibility
Max Cable Length550m (50/125μm) / 220m (62.5/125μm)
Port Count1
Hot-PluggableYes

Technical Overview

This SFP transceiver interfaces directly with SFP ports on compatible networking equipment, providing a standardized form factor for fiber optic connections. The 1.25 Gigabit Ethernet technology ensures alignment with Gigabit network speeds, while the LC connector offers a secure, low-loss interface suitable for high-density installations.

The optical performance is optimized for multi-mode fiber, with a maximum reach of 550 meters on 50/125μm cable and 220 meters on 62.5/125μm cable. The module operates at a consistent 850nm wavelength, which is standard for short-reach multi-mode applications. It supports digital diagnostics monitoring (DOM) capabilities for real-time performance tracking.

Data Rate1.25 Gbps
Wavelength850 nm
Max Distance550 m
LC ConnectorMulti-ModeHot-Pluggable1000Base-SX

Key Product Advantages

The TL-SM311LM combines plug-and-play simplicity with robust optical performance for enterprise and data center networks. Its compatibility with a wide range of TP-Link switches and media converters ensures seamless integration into existing infrastructure.

Broad Compatibility

Works with TP-Link Pure-Gigabit Managed Switches, Web Smart Switches, JetStream switches, and media converters like MC220L and MC200CM, providing flexibility across network tiers.

  • TL-SG3109, TL-SG3216, TL-SG3224 series
  • TL-SL3428, TL-SL3452 switches
  • TL-SG2109WEB, TL-SG2216WEB web smart switches
  • MC220L and MC200CM media converters

Optimized Optical Design

Engineered for reliable signal integrity over multi-mode fiber with precise 850nm wavelength output and LC/UPC connector for minimal insertion loss.

  • 850nm wavelength for multi-mode efficiency
  • LC/UPC connector reduces back-reflection
  • Full-duplex support for bidirectional traffic

Deployment / Use Cases

This SFP transceiver is ideal for connecting switches, routers, and media converters within data centers, enterprise network closets, and campus backbones where fiber optic cabling is required. It enables cost-effective Gigabit Ethernet links over existing multi-mode fiber infrastructure.

Common applications include uplinks between network switches, connections to servers with SFP ports, and extending network segments beyond copper Ethernet limits. The module is also suitable for use with TP-Link media converters to bridge fiber and copper networks in mixed-media environments.

Switch-to-Switch Links

Deploy between TP-Link managed or web smart switches to create high-speed fiber interconnects for stacking or backbone connectivity.

Media Converter Integration

Pair with MC220L or MC200CM media converters to convert fiber signals to copper Ethernet, extending network reach to remote devices.

What's in the Box

The package includes all necessary components for immediate deployment, ensuring a complete out-of-box experience.

TL-SM311LM MiniGBIC Module Installation Guide
TL-SM311LM MiniGBIC Module
[custom-highlights]

Highlights

  • SFP (mini-GBIC) form factor for hot-pluggable installation.
  • 1.25Gbps data rate supporting Gigabit Ethernet (1000Base-SX).
  • LC/UPC connector type for reliable fiber optic connections.
  • 850nm wavelength optimized for multi-mode fiber.
  • Maximum reach of 550m on 50/125μm multi-mode fiber.
  • Compatible with TP-Link switches and media converters.
  • Supports full-duplex communication for efficient data transfer.
  • Includes protective dust plugs to maintain optical integrity.
[/custom-highlights][custom-specifications]

Specifications

Specifications
ManufacturerTP-LINK Technologies Co., Ltd
Manufacturer Part NumberTL-SM311LM
Brand NameTP-Link
Product ModelTL-SM311LM
Product NameMiniGBIC Module
Product TypeSFP (mini-GBIC)
Technical Information
Application/UsageData Networking,Optical Network
Interfaces/Ports
Total Number of Ports1
Connector TypeLC
Interfaces/Ports Details1 x LC 1000Base-SX Network
Media & Performance
Media Type SupportedOptical Fiber
Fiber Mode SupportedMulti-mode
Ethernet Technology1.25 Gigabit Ethernet
Network Technology1000Base-SX
Miscellaneous
Package ContentsTL-SM311LM MiniGBIC Module Installation Guide
CompatibilityPure-Gigabit Managed Switch TL-SG3109 Pure-Gigabit Managed Switch TL-SG3216 Pure-Gigabit Managed Switch TL-SG3224 Pure-Gigabit Managed Switch TL-SL3428 Pure-Gigabit Managed Switch TL-SL3452 Pure-Gigabit Web Smart Switch TL-SG2109WEB Pure-Gigabit Web Smart Switch TL-SG2216WEB Pure-Gigabit Web Smart Switch TL-SG2224WEB Pure-Gigabit Web Smart Switch TL-SG2210WEB Pure-Gigabit Web Smart Switch TL-SG2428WEB Pure-Gigabit Web Smart Switch TL-SG2452WEB Gigabit Switch TL-SL1351
Country of OriginChina
Environmentally FriendlyYes
[/custom-specifications][custom-faq]

FAQ

What type of fiber does the TL-SM311LM support?

The TL-SM311LM supports multi-mode fiber optic cabling. It is optimized for use with 50/125μm multi-mode fiber, providing a maximum reach of 550 meters, and also works with 62.5/125μm multi-mode fiber for distances up to 220 meters. This makes it suitable for short to medium-range fiber connections within buildings or campuses.

Is this SFP module compatible with non-TP-Link equipment?

The TL-SM311LM is specifically tested and validated for compatibility with TP-Link networking products, including Pure-Gigabit Managed Switches, Web Smart Switches, JetStream switches, and media converters like MC220L and MC200CM. While it uses the standard SFP form factor, compatibility with third-party equipment is not guaranteed and should be verified with the device manufacturer.

What is the wavelength and data rate of this transceiver?

This transceiver operates at an 850nm wavelength, which is standard for multi-mode fiber applications. It delivers a data rate of 1.25 Gigabit Ethernet, aligning with the 1000Base-SX network technology for full Gigabit performance. The combination ensures efficient optical transmission for Gigabit network links.

Does the module support digital diagnostics monitoring (DOM)?

Yes, the TL-SM311LM supports digital diagnostics monitoring (DOM), also known as DDM. This feature allows network administrators to monitor real-time parameters such as temperature, voltage, laser bias current, and optical power levels via compatible management interfaces, aiding in proactive maintenance and troubleshooting.

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TP-LINK TL-SM311LM SFP MiniGBIC Fiber Transceiver - 1. 25Gbps LC/UPC - 850nm 550m Multi-Mode
$23.99
Out of stock