TM 11-5815-602-10
EE161-DM-OPI-010/E154UGC74
TO 31W4-2UGC74-1
(1) When message memory available becomes three blocks (384 characters) or less due to
an incoming message, the following occurs:
The operator is preempted and the printer is taken over by the system (keyboard is
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locked out).
The current line (data or command) is lost.
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Error message No. 3 is printed, followed by 10 line-feeds.
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(2) There are two possible conditions which may exist at this point.
(a) Condition one is when there are received messages in message memory. Under
this condition the following occurs:
All received messages and their local numbers are printed out.
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Received messages are then deleted from memory in the order of oldest-highest
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precedence first.
These messages are separated by 10 line-feeds.
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As memory blocks (128 bytes) of data are printed, they are released for storage of the
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incoming message.
(b) Condition two is when there are no received messages in message storage. Under
this condition the following occurs:
The message being received starts printing from the beginning of the message.
As blocks of data are printed, they are released for storage of the incoming
message.
(3) This process (either condition one or condition two) continues until all received
messages are printed and deleted from message storage.
(4) The terminal returns control to the operator at the System Command level.
NOTE
This process is only applicable in the ICT operational state.
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