SFP transceiver CBO SFP-1G-ZX-120KM-NA-BO 1,25 Gbit/s LC ZX 120 km

The BlueOptics SFP-1G-ZX-120KM-NA-BO is a single-mode SFP transceiver module that supports a 1.25 Gbps data rate with an LC duplex connector and ZX-class wavelength. Designed for long-reach fiber links, it provides optical transmission up to 120 km and is suitable for optical uplinks, metro and long-distance network segments. The module supports hot-swap installation in compatible switches, routers and media converters and is intended for deployments where low-latency, reliable fiber connectivity is required.

Advantages

This SFP transceiver offers long-distance optical reach up to 120 km on single-mode fibre while maintaining a stable 1.25 Gbps data rate. The LC duplex connector and ZX wavelength ensure compatibility with common telecom and carrier-class fiber infrastructures. The compact SFP form factor enables hot-swap replacement and density-friendly installations in network equipment. Designed for reliable operation in long-haul links, the module minimizes downtime and simplifies upgrades of existing fiber uplinks.

Suitable for

• Optical uplinks between switches and routers across metro and long-distance links
• Carrier and service provider long-haul connections
• Data centre interconnects where single-mode fibre and extended reach are required
• Upgrading or extending existing single-mode fiber networks

Key specifications

• Form factor: SFP (small form-factor pluggable)
• Data rate: 1.25 Gbps
• Optical mode: single-mode fiber (SMF)
• Maximum reach: up to 120 km (single-mode)
• Connector type: LC duplex
• Wavelength class: ZX (long wavelength for extended reach)
• Hot-swap capable: yes

How to use

Insert the SFP module into a compatible SFP port on your switch, router or media converter while the host device is powered on or off, following the equipment manufacturer’s guidance for SFP modules. Connect LC duplex single-mode fiber patch cords to the module’s LC ports, ensuring correct transmit/receive orientation. Verify link status and configuration on the host device; adjust interface settings such as speed and duplex only if required by the device. For best performance, confirm that fiber type, connectors and splice quality meet single-mode long-reach requirements.

Recommendations

Use single-mode fiber with appropriate attenuation budget and ensure end-to-end link power margins for 120 km operation. Keep connector endfaces clean and protected; inspect and clean before mating. Match the ZX wavelength class on both ends of the link and verify host compatibility with SFP form factor modules. Store unused modules in protective packaging to prevent contamination and mechanical damage.