TIA Standards developed by committee IE-31

AB3-D - Glossary of Terms for Numerically Controlled Machines
EIA-227-A - One-Inch Perforated Tape (ANSI/EIA-227-A-78) (R78) (R88) (R93)
EIA-267-C - Axis and Motion Nomenclature for Numerically Controlled Machines (ANSI/EIA-267-C-90)
EIA-274-D - Interchangeable Variable Block Data Contouring, Format for Positioning and Contouring/Positioning Numerically Controlled Machines (ANSI/EIA-274-D-80) (R88)
EIA-358-C - ANSI X3.4 American National Standard Code for Information Interchange for Numerical Machine Control Perforated Tape (ANSI/EIA-358-C-92)
EIA-408 - Interface between Numerical Control Equipment and Data Terminal Equipment Employing Parallel Binary Data Interchange (ANSI/EIA-408-73) (R92)
EIA-431 - Electrical Interface between Numerical Control and Machine Tools (ANSI/EIA-431-92)
EIA-441 - Operator Interface Functions of Numerical Controls (ANSI/EIA-441-92)
EIA-484-A - 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 Transmis
EIA-491 - Interface between a Numerical Control Unit and Peripheral Equipment Employing Asynchronous Binary Data Interchange over Circuits Having EIA-423-A Electrical Characteristics (ANSI/EIA-491-92)
EIA-494-B - 32 Bit Binary CL (BCL) and 7 Bit ASCII CL (ACL) Exchange Input Format for Numerically Controlled Machines (ANSI/EIA-494-B-90)
EIA-511 - Manufacturing Message Specification: Service Definition and Protocol (ANSI/EIA-511-89)