Description
The TP-Link TL-SM311LM is a professional-grade Multi-Mode MiniGBIC SFP transceiver engineered to expand the reach of your local area network. Operating on an 850nm wavelength, this module facilitates high-speed data transmission over multi-mode fiber, effectively overcoming the 100-meter limitation of standard copper Ethernet. It is a critical component for businesses requiring stable, low-latency connections between server rooms, distribution frames, and remote workstations across a campus or office building.
This product is for:
- IT Administrators managing campus-wide networks who need to link multiple buildings via multi-mode fiber.
- Data Center Technicians requiring reliable gigabit uplinks for high-density rack-to-rack communication.
- Small to Medium Enterprises (SMEs) upgrading from copper to fiber to eliminate electromagnetic interference (EMI).
- Network Engineers deploying TP-Link JetStream managed switches for scalable infrastructure.
- System Integrators utilizing MC220L media converters to extend Ethernet reach in industrial or commercial environments.
Detailed specifications:
- Interface: LC Duplex Connector
- Fiber Type: 50/125μm or 62.5/125μm Multi-mode Fiber
- Maximum Transmission Distance: 550m (50/125μm) or 275m (62.5/125μm)
- Data Rate: 1.25Gbps
- Wavelength: 850nm
- Power Supply: 3.3V (Internal power from host device)
- Compatibility: T3700, T2700, T2600, T2500, T1700, T1600, T1500 series switches and MC220L media converter
Deploying the TL-SM311LM is a seamless experience due to its hot-swappable, plug-and-play design. The module slides into the SFP slot of a compatible switch and is instantly recognized by the system, requiring no additional software configuration or driver installation. In operational environments, the metal housing ensures excellent heat dissipation and durability, maintaining consistent signal integrity even during peak traffic loads. The secure LC connector mechanism provides a tactile click, ensuring a stable physical connection that resists accidental disconnection.
When compared to standard RJ45 copper uplinks, the TL-SM311LM offers superior resistance to electrical noise and supports five times the distance of traditional Cat6 cabling. While single-mode modules like the TL-SM311LS are designed for long-haul spans of several kilometers, this multi-mode variant is the optimized, cost-effective choice for intra-building backbone connections. By using official TP-Link modules rather than generic third-party alternatives, users ensure full firmware compatibility and maintain the integrity of their hardware warranty across the JetStream and Smart Switch product lines.
Q&A:
- Is the TL-SM311LM hot-swappable? Yes, the module can be inserted or removed while the switch is powered on without interrupting network operations.
- What is the maximum distance this module supports? It supports up to 550 meters when paired with 50/125μm multi-mode fiber cables.
- Does this module work with single-mode fiber? No, the TL-SM311LM is specifically designed for multi-mode fiber; single-mode applications require the TL-SM311LS.
- Is a separate power adapter required? No, the transceiver draws all necessary power directly from the SFP port of the host switch or media converter.
- Which TP-Link switches are compatible? It is compatible with a wide range of models including the T3700, T2700, T2600, T2500, T1700, T1600, and T1500 series, as well as the MC220L converter.
