This document describes an SFP+ 10G 1310nm optical transceiver that operates at 10Gbps up to a distance of 40km on single mode fiber. It provides digital diagnostic monitoring of parameters like supply voltage, laser bias current, temperatures and more. The transceiver is hot-pluggable and compliant with SFP+ and RoHS standards. It is designed for applications like 10G Ethernet, fiber channel and switch/router interfaces.