Description
The Fujitsu FC9681EL31-I08 is a high-performance optical transceiver designed for dense wavelength division multiplexing (DWDM) networks, ideal for enterprise and carrier-grade applications. Housed in a compact, hot-swappable form factor, this module supports 10Gbps data rates over long distances, making it suitable for high-bandwidth backbone connections. It utilizes an LC duplex connector and is engineered for single-mode fiber, enabling transmission distances of up to 80 kilometers depending on network conditions. The robust build and efficient thermal design ensure reliable operation in demanding environments.
This model operates on the ITU-T DWDM grid, supporting a specific channel wavelength, and is compliant with industry standards such as SFF-8591 and IEEE 802.3ae. Key components include a cooled DWDM EML (Electro-absorption Modulated Laser) transmitter and a high-sensitivity PIN photodiode receiver, both optimized for low-jitter signal integrity. The FC9681EL31-I08 also features digital diagnostics monitoring (DDM), allowing real-time tracking of parameters like optical power, temperature, and voltage. A solid choice for expanding or upgrading optical networks, particularly when sourcing reliable used hardware.

