DFS2057 DEBLOCKING CHARACTER NOT FOUND IN INPUT SEGMENT.

Explanation
 Input was received from the 3770 card reader component
and the deblocking routine scanned to the end of the input data without
detecting a deblocking character. Every card in the input data has
to be followed by an IRS character.

System action
 The input message in error is canceled, a record
containing the input message in error is written on the IMS log
data set, and the session is terminated.

Operator response
Issue an /OPNDST command to
the node, and try the failing input message again. If the failure
persists, follow the problem determination.

Problem determination
5, 6, 23 