TP-Link® Omada 1000Base-SX Multi-Mode SFP Module (Mini GBIC), 550m | SM311LM
TP-Link® Omada 1000Base-SX Multi-Mode SFP Module (Mini GBIC), 550m | SM311LM
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TP-Link Omada 1000Base-SX Multi-Mode SFP Module (Mini GBIC), 550m | SM311LM
The TP-Link Omada SM311LM (TL-SM311LM) is a Gigabit 1000Base-SX SFP (Mini GBIC) module for multi-mode fiber. It works at 850 nm over 50/125 µm or 62.5/125 µm multi-mode fiber, reaches up to 550 m, and uses an LC duplex connector.
Gigabit up to 550 m: Short-wave (SX) optics carry a Gigabit link up to 550 m over multi-mode fiber, more than five times the 100 m copper limit, for links inside a building or campus.
Digital Diagnostic Monitoring (DDM): Supported switches can read live module data, which helps when checking and troubleshooting a fiber link.
Hot-pluggable, SFP-MSA: The module can be inserted or removed while the switch is running and follows the SFP Multi-Source Agreement.
Who it's for / Works with: TP-Link managed and smart switches with Gigabit SFP slots, linked over multi-mode fiber.
Good to know: Multi-mode fiber only. The 550 m maximum is the figure TP-Link gives for this module; actual reach depends on the fiber type. The fiber patch cable is not included.
Technical Specifications
| Specification | TP-Link SM311LM |
|---|---|
| Form factor | SFP (Mini GBIC) |
| Standard | 1000Base-SX, IEEE 802.3z |
| Data rate | 1.25 Gbps |
| Wavelength | 850 nm |
| Fiber type | 50/125 µm or 62.5/125 µm multi-mode |
| Max. cable length | 550 m |
| Connector | LC duplex |
| Features | DDM, SFP-MSA, hot-swappable |
| Dimensions (W × D × H) | 55.4 × 13.7 × 12.9 mm |
| Operating temperature | 0 °C to 70 °C |
| Certification | FCC, CE |
📄 Datasheet: Download the official TP-Link SM311LM datasheet (PDF)