This document specifies the physical layer services and procedures for the asynchronous data exchange in a connection-oriented context within the scope of electricity metering, including data collection, billing, and load control. It outlines the requirements and functionalities related to the physical layer, ensuring compatibility and reliability in data communication processes. The content covers various aspects such as signal characteristics, transmission media, and interface specifications, aiming to support efficient and standardized data exchange. It also defines the procedures for establishing, maintaining, and terminating connections, as well as handling data transmission and error recovery mechanisms. The document is part of a series that addresses the data exchange requirements for electricity metering applications, contributing to the overall framework for communication protocols in this domain.
*** Please note: This description may not be accurate, please refer to the official documentation.