Cisco DWDM-X2-31.90

The Cisco DWDM-X2-31.90 is a transceiver module used in optical networking. It is specifically designed for Dense Wavelength Division Multiplexing (DWDM) applications. The "X2" form factor refers to the physical size and interface of the module. The "31.90" in the product name represents the specific wavelength of light that the module operates on. In this case, it operates at a wavelength of 31.90 nanometers. DWDM technology allows multiple wavelengths of light to be transmitted simultaneously over a single optical fiber, increasing the capacity and efficiency of the network. Overall, the Cisco DWDM-X2-31.90 is a high-performance transceiver module used for long-distance optical communication in DWDM networks.