SFP transceiver CBO SFP-1G-ZX-120KM-IA-BO 1.25 Gbps single‑mode LC 120 km

CBO SFP-1G-ZX-120KM-IA-BO is a 1.25 Gbps SFP optical transceiver designed for single‑mode fiber links with an LC duplex connector and a reach of up to 120 km. The module operates at a ZX-class wavelength for long-distance transmission and fits standard hot‑pluggable SFP ports, enabling straightforward deployment in switches, routers and optical transport equipment. It targets applications that require extended reach and reliable Gigabit Ethernet or telecom connectivity over single‑mode fiber.

Advantages

The transceiver supports 1.25 Gbps data rate and ZX wavelength class to enable long-distance links without intermediate amplification. Its hot-pluggable SFP form factor simplifies installation and replacement in live systems. The LC connector and single‑mode design offer low insertion loss and compatibility with standard single‑mode fiber infrastructure. The product is engineered for carrier-grade links and metro or long-haul Ethernet uplinks where stability and predictable signal characteristics are needed.

Suitable for

• Long-distance Gigabit Ethernet uplinks between data centres or POPs
• Metro and carrier-grade optical links requiring up to 120 km reach
• Telecom infrastructure and service provider backbone connections
• Redundant or replacement transceivers in existing single‑mode LC networks

Key specifications

• Data rate: 1.25 Gbps
• Fiber type: single‑mode
• Connector: LC duplex
• Maximum reach: up to 120 km
• Wavelength class: ZX (long-reach operation)
• Form factor: SFP (hot-pluggable)

How to use

Insert the SFP module into a compatible SFP slot on the switch, router or optical transceiver chassis while the host device is powered on or off, following the manufacturer's hot-plug guidelines. Connect LC duplex single‑mode fiber patch cables, ensuring correct Tx/Rx orientation and secure connector seating. Verify link status through the host device interface and configure interface parameters such as speed and duplex if required. For long-distance links, confirm fiber attenuation and end‑point transceiver compatibility before commissioning.

Recommendations

For reliable operation over long distances, use single‑mode fiber with appropriate attenuation characteristics and keep connectors clean. Test end-to-end link loss and optical power margins during installation. Replace modules with identical or compatible ZX-class transceivers at both ends to maintain optical budget and link stability.