Fiber optic SFP module CBO SFP-1G-ZX-120KM-LE-BO 1.25 Gbit/s 120 km LC

CBO SFP-1G-ZX-120KM-LE-BO is a BlueOptics fiber optic SFP transceiver module that supports a 1.25 Gbit/s data rate over long-reach single-mode fiber. The module uses an LC duplex interface and is designed to operate in standard SFP ports, enabling optical connectivity for switches, routers and other networking equipment. It is engineered for point-to-point links up to 120 km, providing a stable optical link for telecom and enterprise environments where extended distance is required.

Advantages

The module provides long-distance single-mode transmission up to 120 km while maintaining 1.25 Gbit/s throughput, which reduces the need for intermediate regenerators or additional infrastructure. Its compact SFP form factor ensures compatibility with a wide range of networking devices that accept standard SFP transceivers. Using an LC duplex connector supports common fiber cabling practices and simplifies integration into existing fiber networks.

Suitable for

• Long-reach single-mode fiber links between buildings or data centers
• Metro and access networks requiring 120 km optical spans
• Upgrading switches and routers to enable 1 Gbit/s optical uplinks
• Telecom and enterprise network infrastructure with standard SFP slots

Key specifications

• Form factor: SFP (small form-factor pluggable)
• Data rate: 1.25 Gbit/s
• Maximum reach: up to 120 km over single-mode fiber
• Connector type: LC duplex
• Optical interface: single-mode fiber
• Typical use: point-to-point long-reach optical links

How to use

Install the transceiver into an empty SFP port of a compatible switch, router or optical device while the host device is powered according to the equipment manufacturer’s instructions. Connect LC duplex single-mode fiber patch cords, ensuring correct transmit/receive orientation and clean connectors to minimize insertion loss. Verify link status and configure the host device network interfaces as required for 1 Gbit/s operation. Monitor optical levels and device logs during initial setup to confirm reliable operation.

Recommendations

Use single-mode fiber rated for long-distance transmission and high-quality LC connectors. Clean connector endfaces before mating, avoid tight fiber bends near the transceiver, and consult the host device documentation for any compatibility or configuration details. For installations approaching the maximum span, verify optical power budget and consider intermediate amplifiers or dispersion management if required.