SFP transceiver CBO SFP-1G-LX-20KM-CI-BO 1.25 Gbit/s single-mode LC, up to 20 km

CBO SFP-1G-LX-20KM-CI-BO is a 1.25 Gbit/s SFP optical transceiver for single-mode fiber with an LC connector, designed for reliable optical links up to 20 km. The module offers a compact, hot-pluggable interface compatible with switches, routers and other optical networking equipment that accept SFP form factor modules. It supports single-mode transmission and is intended for point-to-point connections, uplink ports and network extension where low-latency, consistent gigabit throughput is required.

Advantages

The transceiver delivers a standardized 1.25 Gbit/s data rate and an LC single-mode interface, enabling straightforward integration into existing fiber infrastructures. Its hot-pluggable SFP form factor minimizes downtime during installation or replacement. Built for link distances up to 20 km, the module supports longer reach compared with typical short-range optics, making it suitable for campus and metro links. The unit follows common SFP electrical and optical specifications for interoperability with a wide range of networking equipment.

Suitable for

• Long-distance uplinks between network switches and routers
• Point-to-point fiber links in campus, enterprise and small data center environments
• Network expansion where single-mode LC fiber is used
• Replacement or spare module for SFP-capable optical ports

Key specifications

• Data rate: 1.25 Gbit/s
• Fiber type: single-mode
• Connector type: LC
• Maximum reach: up to 20 km
• Form factor: SFP (hot-pluggable)
• Wavelength class: long‑reach single-mode optics

How to use

Insert the SFP module into the SFP slot of a compatible switch, router or optical transceiver bay while the host device is powered on or off as supported by the equipment. Connect a single-mode LC patch cable between this module and the remote transceiver. Verify link status and speed through the host device management interface and ensure fiber polarity and connector cleanliness. Follow the network equipment vendor’s guidelines for hot-plugging and for any necessary port configuration such as speed, duplex or optical settings.

Recommendations

Use single-mode LC patch cables with appropriate launch power and clean connectors. For reliable performance over the full 20 km range, verify link budget and attenuation of the fiber path, and avoid bends or physical stress on the cable. Keep the transceiver’s dust caps in place when not connected and follow electrostatic discharge (ESD) precautions during handling.