Lightwin 1.25G SFP BiDi 1310nm-TX/1550nm-RX 20km DDM LC simplex SMF transceiver (LWO-SFP-3155-20)

For single-fiber Gigabit Ethernet links where fiber availability is limited, the Lightwin LWO-SFP-3155-20 BiDi transceiver stands out by using a single strand of single-mode fiber for both transmit and receive. Unlike standard dual-fiber SFPs, it pairs a 1310nm transmitter with a 1550nm receiver, enabling full-duplex communication over one LC simplex connection. This halves your fiber infrastructure requirements while maintaining a solid 20km reach.

Highlights

• Bi-Directional (BiDi) SFP for single-fiber operation
• 1310nm TX / 1550nm RX wavelength pairing
• Up to 20km over 9/125µm single-mode fiber
• LC simplex connector for easy deployment
• Digital Diagnostic Monitoring (DDM/DOM) for real-time status
• Hot-pluggable and MSA compliant
• Low power consumption (<1W typical)

In daily use

This module is ideal for point-to-point Gigabit Ethernet links in campus, enterprise, or metro access networks where fiber counts are constrained. The integrated DDM allows network administrators to monitor optical power, temperature, and voltage remotely, simplifying troubleshooting and preventive maintenance. With commercial temperature range (0°C to 70°C) and robust DFB laser, it delivers reliable performance in standard indoor environments.

Full specifications

• Data rate: 1.25 Gbps
• Transceiver type: SFP BiDi
• Wavelength: 1310nm TX / 1550nm RX
• Max distance: 20 km
• Fiber type: Single-mode (SMF)
• Connector: LC simplex
• DDM/DOM: Yes
• Hot-pluggable: Yes
• Standards: IEEE 802.3z 1000BASE-BX
• Power supply: 3.3V
• Operating temperature: 0°C to 70°C
• Laser type: DFB
• Receiver type: PIN
• MSA compliant: Yes
• Application: Gigabit Ethernet, Fiber Channel
• Power consumption: <1W typical

Final note

Choose the Lightwin LWO-SFP-3155-20 for efficient single-fiber connectivity with integrated diagnostics, ensuring cost-effective and reliable network links up to 20km.