The requirements and definitions in this document are for Small Networking Equipment. This document represents one part of the larger ATIS suite of standards concerning Telecommunications Energy Efficiency. Purpose This document provides a set of definitions@ requirements@ and guidelines for calculating the Telecommunications Energy Efficiency Ratio (TEER) of a product. The test methodology used to measure the Energy Consumption used as part of the TEER calculation is addressed in ATIS-0600015.2013.