EIA 491 : 82(R1992)
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
INTERFACE BETWEEN A NUMERICAL CONTROL UNIT AND PERIPHERAL EQUIPMENT EMPLOYING ASYNCHRONOUS BINARY DATA INTERCHANGE OVER CIRCUITS HAVING EIA-423-A ELECTRICAL CHARACTERISTICS
12-31-2016
01-12-2013
Describes interconnection of numerical control unit and peripheral devices including reader/punches, intelligent terminals, automatic send-receive terminals, part program preparation systems, or another unit using serial binary asynchronous data transfer.
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