Optický SFP transceiver CBO SFP-1G-ZX-120KM — 1,25 Gbit/s, Singlemode, 120 km

CBO SFP-1G-ZX-120KM is a single-mode fiber optic SFP transceiver module that supports a 1.25 Gbps data rate and is designed for long-distance links up to 120 km. The compact, hot-pluggable form factor fits standard SFP ports and enables uplinks and backbone connections between switches, routers and other optical equipment. This module is intended for point-to-point optical transmissions over single-mode fiber where extended reach and compatibility with 1 Gbps interfaces are required.

Advantages

The transceiver provides a cost-effective solution for extending networks over single-mode fiber without changing existing SFP-based equipment. Its hot-pluggable design allows replacement or upgrade without powering down devices, and the small form factor preserves port density on networking gear. The module is engineered for stable single-mode performance at long distances and is suitable for integration into standard optical networks that require 1.25 Gbps links over extended reaches.

Suitable for

• Long-distance uplinks between switches and routers over single-mode fiber
• Backbone links in campus and metropolitan networks
• Point-to-point connections between data center equipment
• Optical extensions where 1 Gbps interfaces are used

Key specifications

• Data rate: 1.25 Gbps
• Fiber type: single-mode
• Maximum reach: up to 120 km
• Form factor: SFP (hot-pluggable)
• Interface: LC duplex (single-mode compatible)
• Typical application: 1 Gbps optical uplinks and backbone links

How to use

Insert the transceiver into a compatible SFP port on a switch, router or optical device while the host is powered on to take advantage of the hot-pluggable capability. Connect single-mode fiber with appropriate LC duplex connectors, ensuring correct transmit/receive orientation. Verify link status and configure interface settings on the host device as required for 1 Gbps operation. Follow standard fiber handling and cleaning procedures to maintain signal quality.

Recommendations

Use certified single-mode fiber with low attenuation and maintain clean LC connector endfaces to achieve reliable performance at distances approaching 120 km. Check compatibility with the host device’s SFP port and firmware; if needed, verify that the device accepts third-party SFP modules. For long runs, review dispersion and link budget factors and, where appropriate, use inline amplifiers or dispersion compensation as specified by the network design.