High Quality Content by WIKIPEDIA articles! LAN eXtensions for Instrumentation (LXI) is a standard developed by the LXI Consortium, an industry consortium that maintains the LXI specification, promotes the LXI Standard, and ensures interoperability. The LXI standard defines the communications protocols for instrumentation and data acquisition systems using Ethernet. Ethernet is an accessible and versatile interface that must be implemented against a standard for instrumentation to communicate effectively.