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

The CBO SFP-1G-ZX-120KM-MA-BO is a hot-pluggable SFP optical transceiver that supports a 1.25 Gbit/s data rate and features an LC connector for single-mode fiber. Engineered for long-reach ZX transmission up to 120 km, this transceiver fits standard SFP slots and provides a compact, interoperable solution for telecom and enterprise fiber links. The module is suitable for metro networks, long-distance fiber connections and other environments where reliable single-mode transmission over extended distances is required.

Advantages

This SFP transceiver delivers long-distance single-mode connectivity with a ZX optical window designed for up to 120 km, enabling point-to-point links without intermediate amplification for many deployments. Its hot-pluggable SFP form factor simplifies installation and maintenance, while the LC duplex connector ensures broad compatibility with common single-mode patch cords. The module supports a standard 1.25 Gbit/s data rate and adheres to industry form-factor expectations for easy integration into existing network equipment.

Suitable for

• Long-distance metro and carrier links over single-mode fiber
• Telecom backbone and inter-building connections up to 120 km
• Enterprise WAN links and campus backbone segments
• Upgrades where standard SFP slots are available and ZX reach is required

Key specifications

• Data rate: 1.25 Gbit/s (1250 Mbit/s)
• Optical type: single-mode fiber
• Maximum reach: up to 120 km (ZX)
• Connector: LC duplex
• Form factor: SFP (hot-pluggable)

How to use

Insert the transceiver into an available SFP slot on compatible network equipment while the device is powered according to the host documentation. Connect LC single-mode patch cables to the transmit and receive ports, observing correct polarity. Configure link settings on the connected devices as required for 1.25 Gbit/s operation and verify link status through the host system's management interface. For safety and performance, follow standard fiber handling practices such as keeping connectors clean and using protective caps when ports are unused.

Recommendations

Use certified single-mode fiber with appropriate attenuation characteristics for long-distance links and test end-to-end loss before commissioning. Maintain clean connector endfaces and inspect fiber continuity with an optical power meter or OTDR when diagnosing link issues. Replace dust caps only when connecting and avoid bending fiber beyond recommended minimum bend radius to preserve signal quality over the 120 km span.