DALTRTCH specifies the recording technique for 7-track tape. It
is mutually exclusive with the CODE (DALCODE), KEYLEN (DALKYLEN),
MODE (DALMODE), PRTSP (DALPRTSP), and STACK (DALSTACK) keys. When
you code DALTRTCH, # and LEN must be one, and PARM contains one of
the following values:
- X'04'
- Non-compaction mode
- X'08'
- Compaction mode
- X'13'
- Data conversion (C)
- X'23'
- Even parity (E)
- X'2B'
- Even parity and BCD/EBCDIC translation (ET)
- X'3B'
- BCD/EBCDIC translation (T)
Example: To specify even parity, code:
KEY # LEN PARM
004F 0001 0001 23