SFP transceiver CBO SFP-1G-ZX-120KM-QN-BO 1.25 Gbit/s single-mode LC ZX 120 km

The CBO SFP-1G-ZX-120KM-QN-BO is a 1.25 Gbit/s SFP optical transceiver designed for single-mode fiber applications. It uses an LC duplex connector and ZX-class wavelength to support long-reach transmission up to 120 km. Compatible with standard SFP ports, this module is intended for telecom and enterprise network equipment to provide reliable long-distance data transport, uplinks and fiber backbone connections.

Advantages

This SFP transceiver delivers a stable 1.25 Gbit/s data rate over single-mode fiber with extended reach, reducing the need for intermediate repeaters. Its LC interface and industry-standard SFP form factor allow straightforward integration into existing switches, routers and media converters. The ZX wavelength option supports long-haul links while maintaining low power consumption and compact dimensions suitable for high-density installations.

Suitable for

• Long-distance uplinks between sites and data centers
• Fiber backbone connections in campus and metropolitan networks
• Telecom access and aggregation links requiring single-mode transmission
• Replacement or upgrade of existing SFP ports to extend link reach

Key specifications

• Data rate: 1.25 Gbit/s
• Fiber type: single-mode
• Connector: LC duplex
• Transmission class: ZX (long reach)
• Max reach: up to 120 km
• Form factor: SFP (small form-factor pluggable)

How to use

Install the transceiver into a compatible SFP port on your switch, router or optical device according to the vendor’s hot-swap guidelines. Connect a single-mode LC duplex fiber cable, ensuring correct polarity and secure seating of connectors. Verify link status via device LEDs or management interface and configure the network device for a 1.25 Gbit/s link if manual settings are required. Observe electrostatic discharge (ESD) precautions when handling the module and keep protective caps on unused ports.

Recommendations

For reliable long-distance operation, use single-mode fiber rated for long-haul links and maintain proper fiber cleaning practices. Confirm compatibility with your equipment’s SFP transceiver list and, when deploying in high-density chassis, monitor module temperatures and power budgets to ensure stable performance.