IBM 5291 1 Operator's Manual page 22

Keyboard Shift
• The keyboard is in uppershift.
The keyboard is in lowershift.
Refer to Shift, Spacebar, and Special Symbol Keys in Chapter 2 for information
on how to change the keyboard shift.
Insert Mode
• Characters can be inserted into an existing
field (from the keyboard) without destroying
existing data.
Characters cannot be inserted into an existing
field without destroying data.
Refer to Insert Key in Chapter 2 for an explanation.
Input Inhibited
• Keyboard input will not be accepted by the system
or remote work station controller.
Keyboard input will be accepted by the system
or remote work station controller.
When the Input Inhibited indicator is turned on, the alarm will sound when
most keys are pressed. The alarm indicates that the system is not accepting
your keystrokes.
The Input Inhibited indicator is turned on by the system or by the remote work
station controller while it is processing your data and requests. The Input
Inhibited indicator is also turned on by error conditions; see Chapter 3, Error
Codes and Recovery Procedures. If the condition is not an error and persists for
an abnormal length of time, contact your supervisor for recovery instructions.
Learning to Operate the Display Station 1-15