📦 Description: 
The Sopto SFP BiDi Transceiver (SPT‑PB531G‑L20D) is a compact optical module designed for single‑fiber bidirectional communication. It transmits at 1550 nm and receives at 1310 nm, supporting 1.25 Gbps data rate over distances up to 20 km. With an LC interface and DDM (Digital Diagnostic Monitoring), it ensures reliable operation in commercial temperature environments. Fully compatible with Cisco systems.

⚙️ Details:

• Product: SFP BiDi Transceiver
• Brand: Sopto
• Cisco Code: SPT‑PB531G‑L20D
• Transmission (Tx): 1550 nm
• Reception (Rx): 1310 nm
• Data Rate: 1.25 Gbps
• Distance: Up to 20 km
• Interface: LC connector
• Features: Digital Diagnostic Monitoring (DDM)
• Temperature Range: Commercial (0°C ~ 70°C)
• Application: Metro Ethernet, enterprise networks, fiber access, single‑fiber communication