TSFP-NBx-120
The TSFP-NBx-120 transceiver supports 1G Ethernet over single-mode fiber with a reach of up to 120 kilometers using DWDM narrow-band tunable technology.
SFP, DWDM Tunable, Narrow Band (ITU 20 – 60), 1G, 120km, SMF/LC

The TSFP-NBx-120 optical transceiver module is a tunable SFP designed for 1G Ethernet applications. Operating within the narrow DWDM band (ITU channels 20 to 60), this transceiver enables flexible wavelength selection for high-capacity networks.
With a reach of up to 120 kilometers over single-mode fiber (SMF) and an LC duplex connector, the TSFP-NBx-120 is optimized for long-haul and metro network deployments. Its tunable design ensures efficient wavelength allocation, while its compact SFP form factor and hot-swappable capability allow seamless integration or replacement without disrupting network operations.
- DWDM Narrow-Band Tunability: Supports ITU channels 20 to 60 for flexible wavelength allocation.
- Ultra-Long-Distance Transmission: Provides connectivity over distances up to 120 kilometers on single-mode fiber (SMF).
- 1G Ethernet Support: Delivers reliable, high-speed data transmission for long-range applications.
- LC Connector: Compatible with LC duplex connectors for streamlined integration.
- Hot-Swappable Design: Allows quick installation or replacement without network downtime.
- Long-Haul Telecom Networks
- Metro DWDM Networks
- Data Centers
- Enterprise Networking