Lightwin 155 Mbps SFP BIDI Transceiver, 1310nm TX/1550nm RX, 20km, DDM, LC-Simplex, Singlemode (LWO-SFP100-3155-20)

Network engineers deploying Fast Ethernet or SDH/SONET OC-3 over single-mode fiber will find the Lightwin LWO-SFP100-3155-20 an essential component. This Bi-Directional (BIDI) SFP transceiver transmits at 1310 nm and receives at 1550 nm over a single LC simplex fiber, enabling full-duplex 155 Mbps communication up to 20 km. With Digital Diagnostic Monitoring (DDM), it provides real-time monitoring of temperature, optical power, and other critical parameters, simplifying network management and fault isolation.

Key specifications

• Form Factor: SFP (Small Form-Factor Pluggable)
• Data Rate: 155 Mbps
• Wavelength: TX 1310 nm / RX 1550 nm (Bi-Directional)
• Max Distance: 20 km over single-mode fiber (SMF)
• Connector: LC-Simplex
• DDM/DOM: Yes (Digital Diagnostic Monitoring)
• Compliance: IEEE 802.3u 100BASE-BX, MSA
• Power Supply: 3.3V
• Operating Temperature: 0°C to 70°C
• Laser Type: DFB, Receiver: PIN Photodiode

Why choose it

The Lightwin BIDI SFP reduces fiber infrastructure costs by using a single strand of fiber for both transmit and receive, effectively doubling the capacity of existing fiber plants. Its hot-pluggable design allows for easy installation and replacement without network downtime. The integrated DDM functionality provides proactive monitoring, helping to prevent failures and ensure network reliability. Built to MSA standards, it guarantees compatibility with a wide range of networking equipment from major vendors.

Ideal use cases

• Fast Ethernet (100BASE-BX) connections in enterprise and campus networks
• SDH/SONET OC-3 links for telecommunications and service provider backhaul
• Point-to-point fiber connections where fiber availability is limited
• Upgrading existing single-fiber infrastructure to higher speeds
• Network monitoring and management scenarios requiring DDM data

Good to know

This transceiver operates in commercial temperature range (0°C to 70°C) and is suitable for indoor deployments. It requires a compatible SFP port and single-mode fiber with LC connector. Always pair with a matching BIDI transceiver on the opposite end (1550 nm TX / 1310 nm RX) for proper operation. The product is backed by Lightwin's quality assurance and is available from DistriNode SA with local stock for fast delivery.