Recorded Magnetic Tape for Information Interchange (6250 CPI, Group-Coded Recording) (formerly ANSI X3.54-1986(R1997))
信息交换用记录磁带(6250 CPI 组码记录)(原ANSI X3.54-1986(R1997))
This standard provides specifications for a 1/2-inch (12,7 mm), 9-track magnetic tape to be used for information interchange among information processing systems, communication systems, and associated equipment utilizing a standard code as agreed upon by the interchange parties. This standard deals solely with recording on magnetic tape and support and complements American National Standard for Unrecorded Magnetic Tape for Information Interchange (9-Track 800 CPI, NRZI; 1600 CPI, PE; and 6250 CPI, GCR), ANSI X3.40:1983.