Electrical characteristics for unbalanced double-current interchange circuits for general use with inte-grated circuit equipment in the field of data communications
List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) on public data networks
Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for start stop transmission services on public data networks
Automatic answering equipment and/or parallel automatic calling equipment on the general switched telephone network, including procedures for bling of echo control devices for both manually and automatically established calls