SFP transceiver CBO SFP-1G-ZX-120KM-AR-BO 1.25 Gbps single-mode LC, 120 km reach

CBO SFP-1G-ZX-120KM-AR-BO is an SFP fiber optic transceiver module that supports a 1.25 Gbps data rate for single-mode fiber with an LC connector and a specified reach of 120 km. Designed for long-distance optical links, this compact module fits into standard SFP ports on switches, routers and media converters to provide reliable point-to-point connectivity over extended distances. The module is intended for uplinks and backbone links where single-mode transmission and long reach are required.

Advantages

The module delivers a standardized 1.25 Gbps interface in an industry-standard SFP form factor, enabling simple hot-swappable upgrades to existing network equipment. With single-mode LC connectivity and transmitter/receiver optics optimized for long-range links, it reduces the need for intermediate repeaters or amplifiers. The compact size and compatibility with common networking platforms simplify installation and maintenance while supporting stable performance over long spans.

Suitable for

• Long-distance uplinks between switches and routers
• Point-to-point fiber links in telecom and ISP networks
• Backbone connections in data centers and campus networks
• Media converters and optical aggregation links

Key specifications

• Data rate: 1.25 Gbps
• Fiber type: single-mode fiber
• Connector type: LC duplex
• Maximum reach: up to 120 km
• Form factor: SFP (small form-factor pluggable)
• Operation: hot-pluggable module for standard SFP ports

How to use

Insert the SFP transceiver into a compatible SFP slot on the switch, router or media converter until it latches. Connect single-mode LC fiber patch cords to the transmit and receive ports, ensuring correct polarity. After physical connection, verify link status and configure the device port as required for 1 Gbps operation. Follow the host equipment manufacturer’s guidance for fiber diagnostics and monitoring features if available.

Recommendations

Use clean single-mode LC connectors and perform end-face inspection before installation to minimize signal loss. For links approaching the maximum reach, verify link budget and consider fiber attenuation, connector losses and splicing. Maintain ambient operating conditions within the host equipment specifications and use appropriate ESD precautions when handling the module.