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1.25G Dual Fiber SFP

Gigabit LX SFP Module SFP-LX-SM1310-20KM

1000BASE-LX · 1310nm · Single-mode (SMF) · Duplex LC · 20km

Compatible with major switch brands — share your equipment model to confirm coding before ordering. 3-year warranty included.

Module overview

  • Hot-pluggable SFP MSA form factor
  • DDM digital diagnostics for TX/RX monitoring
  • 3-year warranty · free technical support
  • Coding confirmed against your switch model

The 1000BASE-LX SFP transceiver operates at 1310 nm over single-mode fiber (SMF) with a duplex LC connector, delivering 1.25 Gbps line-rate up to 20 km. It plugs into any SFP MSA slot, is hot-pluggable, and follows the SFF-8472 management interface.

Typical deployments

This is the workhorse for campus and metro links: building-to-building spans, ISP aggregation and backhaul up to 10 km over standard G.652 single-mode fiber, one strand per direction on duplex LC.

Before you order

Use single-mode patch cords end to end and inspect and clean the LC connectors before mating. If your planned distance is close to the link budget, share your route details — we verify the optical budget before quoting. 3-year warranty and free technical support on every module.

Specifications

Model / Part NumberSFP-LX-SM1310-20KM
Ethernet Standard1000BASE-LX
Data Rate1G
Wavelength1310 nm
Fiber TypeSingle-mode (SMF)
ConnectorLC
Max Reach20km
Form FactorSFP
DDM supportYes