BUFSZ specification - Key = '0038'

DALBUFSZ specifies the length in bytes of each of the buffers to be used for all lines in a particular line group. It is mutually exclusive with the block size key (DALBLKSZ). When you code DALBUFSZ, # must be one, LEN must be two, and PARM contains the buffer length.

Example: To specify a buffer length of 80, code:
KEY    #      LEN    PARM
0038   0001   0002   00 50