ANSI/INCITS 157-1987(R1993)

Recorded Magnetic Tape for Information Interchange 0.5 in (12.7 mm), Tape, Nine Track, 3200 CPI (126 CPMM), Phase Encoded (formerly ANSI X3.157-1987(R1993)) InterNational Committee for Information Technology Standards (formerly NCITS) / 01-Jan-1987