FWLF1634RL51 Finisar 4.25Gbps 1000Base-ZX DWDM 80km 1536.61nm Duplex LC SFP Transceiver

This Finisar SFP transceiver module is built for long-haul network applications requiring stable, high-speed connections over single-mode fiber. It is often found in telecom and data center environments where data needs to travel up to 80 kilometers without signal degradation. Network engineers and administrators commonly use this module to enable efficient DWDM communication channels using the 1536.61nm wavelength.

The module fits into standard SFP slots on switches or routers that support 1000Base-ZX protocol, making it a practical choice for upgrading existing fiber optic links or deploying new ones in metro or regional networks.

Key Features

• Operates at 4.25Gbps for gigabit Ethernet and SONET/SDH applications
• Supports 1000Base-ZX with a reach of 80km on single-mode fiber
• Uses DWDM technology with a precise 1536.61nm wavelength for dense channel grouping
• Equipped with duplex LC connectors for easy installation and secure connections
• Compatible with a wide range of network hardware supporting the SFP form factor

You'll typically see this module deployed in telecom backbones, long-distance campus networks, or metro fiber rings where multiple channels need to coexist without interference. Its ability to maintain signal quality over extended distances helps ensure reliable communications even in complex network setups.