Electrical and Mechanical Interface Characteristics and Line Control Protocol Using Communication Control Characters for Serial Data Link Between a Direct Numerical Control System and Numerical Control Equipment Employing Asynchronous Full Duplex Transmission(STABILIZED May 2016)
The increasing use of computers and related equipment in Direct Numericai Control (DNCI)
Systems for storage and distribution of machine programs to numerically controlled machines and
for communication between various components of DNC systems has demonstrated the need for
a standard data communication link between the DNC and the numerical control unit. As a result,
the EIA Committee IE-31 which is made up of representatives of numerical control system
builders, machine builders and users has prepared this standard for use by people specifying,
building and using DNC systems.