1.25G Dual Fiber SFP

Gigabit ZX SFP Module SFP-ZX-SM1550-120KM

Name: Gigabit ZX SFP Module SFP-ZX-SM1550-120KM
Brand: Fibertrixa
SKU: SFP-ZX-SM1550-120KM
Availability: InStock

1000BASE-ZX · 1550nm · Single-mode (SMF) · Duplex LC · 120km

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

Request Quote for This Model → Back to catalog

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-ZX SFP transceiver operates at 1550 nm over single-mode fiber (SMF) with a duplex LC connector, delivering 1.25 Gbps line-rate up to 120 km. It plugs into any SFP MSA slot, is hot-pluggable, and follows the SFF-8472 management interface.

Typical deployments

Long-haul optics for cross-city backbone, rural ISP spans and inter-building runs without amplification — from tens of kilometers up to 120 km. On unusually short spans the receiver can be overloaded; ask us about attenuation if your link is well under 10 km.

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 Number	SFP-ZX-SM1550-120KM
Ethernet Standard	1000BASE-ZX
Data Rate	1G
Wavelength	1550 nm
Fiber Type	Single-mode (SMF)
Connector	LC
Max Reach	120km
Form Factor	SFP
DDM support	Yes