DFS028 INVALID ATTENTION INPUT DETECTED

Explanation
 Input that required action was received, but the DFSCFEP0
(MFS Paging Processor) did not recognize it.

System action
 Input is ignored, and the terminal is made inoperable.

Programmer response
 If the terminal is programmable, check the logic—how
is attention sent to the host? If the terminal is not programmable, there
is a probable hardware error. If the problem recurs, take a DC trace or a
GTF trace.

Module
 DFSCFEP0