
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.
Product Overview
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
2Connectivity & I/O
3Physical & Environmental
4Lifecycle, Warranty & Compliance
Full Specifications
Power1
Performance10
Features1
Weight & dimensions3
Certificates2
Packaging content1
Operational conditions1
Packaging data1
Logistics data1
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.