The SONT 10G SFP+ DWDM transceiver is designed for use in 10-Gigabit Ethernet links up to 40km over single mode fiber. The module consists of DWDM EML Laser, PIN and Preamplifier in a high-integrated optical sub-assembly. Digital diagnostics functions are available via a 2-wire serial interface, as specified in SFF8472. The module data link up to 40km in 9/125um single mode fiber.