Appendix
B.
3278 Display Station Attached
to
a 4331 Processor
This appendix describes the different symbols and operations that will occur
when the 3278
is
attached to a 4331 processor instead
of
to a 3274 Control
Unit or a 3276 Control Unit Display Station.
Operator Infonnation Area Symbols and Messages
Readiness and System Connection Symbols
The ready symbol I will appear in location 1
of
the Operator Information
Area
to
indicate the 4331 processor
is
working.
Do
Not
Enter (Input Illhibited) Messages
)(
C-F
is
the minus function symbol. This message means that the function
(operation)
that
you
requested
is
not available. Press RESET
to
restore
your keyboard; then take other action.
Keyboards
CLICK
(G1
) Key
The CLICK
(C3l)
key
is
not operative when a 3278
is
attached to a 4331.
The clicker will normally be on. A click tells you
that
the keyboard is
operational and
that
the data you are keying in
is
being accepted. The
absence
of
a click indicates
that
the keyboard
is
disabled.
Additional Keys
The following keys are not operative when a 3278
is
attached to a 4331
processor:
ATTN
PRINT
(0-0)
IDENT
DEVCNCL
CURSRSEL
If
one
of
these keys
is
pressed, the minus function (")( C-F) message will
appear in the Operator Information Area.
Appendix
B.
3278 Display Station Attached to a 4331 Processor
B-1
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