DFS252 ATTEMPT TO OUTPUT DETECTED BUSY CONDITION

Explanation
 A busy condition has been detected on a device
attached to a remote 3271/3275 or 3275 dial control unit. A busy condition
is not considered normal at the time it was detected and is normally
the result of an operation being attempted on a terminal when the
screen is unprotected.

Operator response
(local/remote terminal)  Any output messages
in progress are sent after this error message. Refrain from performing
terminal operations on an unprotected screen.

Module
DFSDN130, DFSDS060 