CipherLab 8600 Reference Manual page 26

8600 Series Mobile Computer
This alphanumeric keypad is set to numeral mode by default. Press the blue key at the
bottom-right to toggle between upper-case alphabet, lower-case alphabet, and numeral
modes. Press the orange key at the bottom-left to toggle between function and numeral
modes.
The associated icon will appear on the top row of the screen in a sequence as shown
below.
Status Icon Function/Alpha Key
(none) N/A
Press the blue key one time
Press the blue key two times
Press the orange key one time
For 29-key model in alphabet mode, it takes turns to show upper-case/lower-case
alphabets and number when you keep pressing the same key; the lasting time of a press
or interval between two presses must not exceed one second or you will always get the
first letter. For example, keep pressing the number key [2], it will take turns to show "A",
"B", "C" or "2" for upper-case, and "a", "b", "c" or "2" for lower-case.
When you first press the number key [2], it will produce the letter "A" or "a".
When you press the number key [2] twice (the time interval must not exceed one
second), it will produce the letter "B" or "b".
When you press the number key [2] three times (the time interval between each
press must not exceed one second), it will produce the letter "C" or "c".
When you press the number key [2] four times (the time interval between each press
must not exceed one second), it will produce the number "2".
In order to get the desired character, you will need to press the same key, one to four
times (the time interval between each press must not exceed one second). Only when
you stop pressing the same key for longer than one second or you press another key, will
the system send the real key code to the application program.
For 39-key in alphabet mode, each key press immediately inputs a particular letter on
the screen. For example, pressing the number key [1] will show "A" or "a" on the screen;
pressing the number key [2] will show "B" or "b".
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Reference Manual
Input Mode
Numbers
Upper-case alphabet
Lower-case alphabet
Function Mode