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PDT 3100 Series Product Reference Guide
The Series 3100 Keyboard
The keyboard is used to enter data and issue commands to the terminal.
Figure 4-1
illustrates the standard 35-key keyboard. For the other Series 3100 keyboards, refer to
Appendix B, Keyboard
Layouts.
The keys on the keyboard are distinguished as modifier keys and character keys. Because
terminal keyboards have fewer keys than PC keyboards, each character key can produce
more than the usual one or two characters. The four modifier keys, Shift, Alpha, Ctrl, and
Func, used individually or in combination, determine which character or special function
the character keys produce.
Using the Keyboard
Except for during boot operations, the terminal expects the operator to press keys one at a
time. If ERR3000 is loaded, and if two or more keys are pressed simultaneously, the system
indicates a Double Key error.
The keyboard also has an optionally configurable auto-repeat function. If the application
allows, a character repeats as long as the key is held down. If the key is pressed
immediately following a modifier key, the modifier sequence affects only the first occurrence
of the character key.
4-10
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