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TP-Link 1000BASE-BX Multi-Mode SFP Module 550m SM311LM
TP-Link·MPN: SM311LM

TP-Link 1000BASE-BX Multi-Mode SFP Module 550m SM311LM

The TP-Link 1000BASE-BX Multi-Mode SFP Module extends fiber optic network connections up to 550 meters, resolving distance limitations for critical business infrastructure.

  • Extended Reach: Provides reliable fiber optic connectivity up to 550 meters, enabling flexible network topology design across larger office spaces or campus environments.
  • Gigabit Performance: Supports 1250 Mbit/s data transfer rates, ensuring high-speed data flow for demanding business applications and preventing network bottlenecks.
  • Multi-Mode Compatibility: Engineered for multi-mode fiber (MMF) with 50/125 and 62.5/125 µm core/cladding diameters, integrating seamlessly into existing MMF infrastructure.
  • Standardized Interface: Features a mini-GBIC/SFP interface with LC (UPC) connector, ensuring broad compatibility with TP-Link managed switches and other industry-standard networking equipment.
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Product Overview

The TP-Link 1000BASE-BX Multi-Mode SFP Module, model SM311LM, is purpose-built to extend gigabit fiber optic connections, supporting a maximum data transfer rate of 1250 Mbit/s over multi-mode fiber. It utilizes an LC (UPC) connector and operates at an 850 nm wavelength, providing a maximum transfer distance of 550 meters.

This module is engineered for compatibility with TP-Link's managed and smart switches, including the T3700G-28TQ and TL-SG5428 series, ensuring frictionless integration into existing network ecosystems. Its robust design and adherence to IEEE 802.3z networking standards provide a reliable solution for expanding network reach and enhancing operational resilience.

  • Core Functionality: Extends fiber optic network links up to 550 meters, enabling businesses to connect geographically dispersed network segments or devices with high reliability.
  • Gigabit Throughput: Delivers 1250 Mbit/s data transfer, ensuring that bandwidth-intensive applications and large data transfers operate without latency or performance degradation.
  • Multi-Mode Fiber Support: Compatible with common 50/125 and 62.5/125 µm multi-mode fiber cables, facilitating cost-effective upgrades and expansions of existing MMF infrastructure.
  • Standardized Connectivity: Features an industry-standard mini-GBIC/SFP interface and LC (UPC) connector, simplifying deployment and ensuring interoperability with a wide range of networking hardware.
  • Operational Value: Provides a cost-effective method to extend network reach and enhance infrastructure flexibility, contributing to a lower total cost of ownership for network expansions.

Choose the TP-Link 1000BASE-BX SFP Module for a reliable and efficient solution to extend your business's fiber optic network infrastructure.

Technical Specifications

1Performance & Business Impact
SFP Transceiver TypeFiber optic
Maximum Data Transfer Rate1250 Mbit/s
Maximum Transfer Distance550 m
Multi-Mode Fiber (MMF) SupportYes
Wavelength850 nm
Networking StandardsIEEE 802.3z
2Connectivity & I/O
Interface Typemini-GBIC/SFP
Fiber Optic ConnectorLC (UPC)
Fiber Cable Diameters Supported50/125, 62.5/125 µm
3Physical & Environmental
Width55.4 mm / 2.18 inches
Depth13.7 mm / 0.54 inches
Height12.9 mm / 0.51 inches
Weight0.02 kg / 0.04 lbs
Product ColorMetallic
Operating Temperature0 - 70 °C / 32 - 158 °F
Operating Relative Humidity10 - 90%
4Lifecycle, Warranty & Compliance
WarrantyLimited Lifetime Warranty
In-Box Contents1 SFP Module, User Guide
Compliance CertificationsRoHS, FCC, CE
Input Voltage3.3 V

Full Specifications

Manufacturer Data
Power1
Input voltage3.3 V
Performance10
SFP transceiver typeFiber optic
Maximum data transfer rate1250 Mbit/s
Interface typemini-GBIC/SFP
Single-mode fiber (SMF) supportedNo
Multi-mode fiber (MMF) supportedYes
Fiber optic connectorLC (UPC)
Fiber cable diameters supported (core/cladding)50/125,62.5/125 µm
Maximum transfer distance550 m
Wavelength850 nm
Networking standardsIEEE 802.3z
Features1
Product colourMetallic
Weight & dimensions3
Width55.4 mm
Depth13.7 mm
Height12.9 mm
Certificates2
Compliance certificatesRoHS
CertificationFCC, CE
Packaging content1
Quantity per pack1 pc(s)
Operational conditions1
Minimum operating temperature0 °C
Packaging data1
User guideYes
Logistics data1
Harmonized System (HS) code85369010
Downloads2
Product Document6.1 MB
Download
Product Datasheet
Download

What This Solves

Extending Network Backbone

When connecting network switches or routers across longer distances within a building or between adjacent structures, fiber optic links are essential. This module provides the necessary gigabit connectivity over multi-mode fiber, ensuring high-speed data transfer without signal degradation.

Campus networks, multi-floor office buildings, industrial facilities, large warehouses

Fiber-to-Desk Connectivity

For workstations or servers requiring direct fiber optic connections for enhanced security or extended reach, this SFP module facilitates the link. It ensures dedicated, high-bandwidth access for critical systems that cannot rely on traditional copper Ethernet.

Financial trading floors, medical imaging departments, engineering design firms, secure government offices

Data Center Interconnects

Within data centers or server rooms, connecting racks of equipment or linking core switches often requires short to medium-range fiber optic connections. This module provides a reliable 1000BASE-BX link, supporting the high-density and high-throughput demands of modern data infrastructure.

Co-location facilities, enterprise data centers, cloud service providers, virtualized server environments

Key Features

1250 Mbit/s Data Transfer Rate

Ensures rapid data throughput for all network traffic, preventing bottlenecks and supporting high-bandwidth applications like video conferencing and large file transfers.

550 m Maximum Transfer Distance

Enables the extension of network segments over significant distances, providing flexibility in network design and connecting remote network closets or buildings.

Multi-Mode Fiber (MMF) Support

Allows for seamless integration into existing multi-mode fiber infrastructures, reducing the need for costly cable replacements during network upgrades or expansions.

LC (UPC) Fiber Optic Connector

Provides a widely adopted and secure connection standard, ensuring broad compatibility with fiber patch cables and simplifying deployment across diverse network setups.

IEEE 802.3z Networking Standard

Guarantees interoperability with other compliant networking equipment, ensuring reliable performance and simplifying integration into multi-vendor environments.

Compatible With

Managed Network Switches

TP-Link JetStream series, Omada series, Cisco Catalyst, Ubiquiti UniFi, Netgear ProSAFE

Fiber Optic Cabling

Multi-mode fiber (MMF) cables, LC-LC fiber patch cables, 50/125 µm and 62.5/125 µm fiber

Network Interface Cards (NICs)

Server NICs with SFP ports, workstation fiber NICs, network adapters

Network Infrastructure

Data centers, server rooms, campus networks, enterprise wiring closets

Frequently Asked Questions

What types of fiber optic cables are compatible with this module?

This module is designed for multi-mode fiber (MMF) cables, specifically those with core/cladding diameters of 50/125 µm or 62.5/125 µm. It uses an LC (UPC) connector for reliable attachment.

Can this SFP module be used with switches from other brands?

While optimized for TP-Link managed/smart switches, this module adheres to the IEEE 802.3z standard and uses a mini-GBIC/SFP interface, making it broadly compatible with many other brands' SFP-enabled networking equipment that support 1000BASE-BX multi-mode transceivers.

What is the maximum distance this module can support?

The TP-Link SM311LM module supports a maximum transfer distance of 550 meters (approximately 1,800 feet) when used with compatible multi-mode fiber optic cabling.

Is this module hot-swappable?

Yes, SFP modules like the SM311LM are typically hot-swappable, meaning they can be inserted or removed from a compatible switch's SFP port without powering down the device, minimizing network downtime during maintenance or upgrades.

Warranty & Returns

Manufacturer Warranty

2 Years

Warranty is provided directly by the manufacturer and covers defects in materials and workmanship under normal use.

Return Policy

Returns subject to manufacturer approval

Hardware returns are governed by the manufacturer's return policy. Some products are non-returnable or subject to restocking fees. Defective items are handled under the manufacturer warranty. Contact Zent Networks before initiating any return.

$17.62