CipherLab 8021 Panduan Pengguna - Halaman 10

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4. Operations

Batteries must be fresh and properly loaded before start operation.

4.1

The keypad of the 8000 Portable Data Terminal has 21 keys. The functions of some special keys are

as follows:

SCAN

ENTER

ESC

ALPHA

POWER

This is the default operation mode when turning on the power. The operation depends on the

application module. Please refer to section 3.4.

Scan a barcode.

Press this button will trigger the scanner to read a barcode if the scanner port is

enabled.

Enter.

There are two enter keys on the side of the scan key. Normally the enter keys are

used for command execution or input confirmation.

Escape.

Usually this key is used to stop and exit current operation.

Back Space.

If this key is being pressed down longer than one second, a clear code will be

sent.

The toggle key for Alphabet / Numeral input.

When the system is in alpha-mode, a small icon will be shown on the display and

each numeral key can be used to generate one of the three capital letters. For

example, numeral 2 can be used to produce A, B or C. Pressing the same key

twice within one second, will call the letter B. Pressing the same key without

halting longer than one second, will cause the three letters to be shown in a

circulating way. Only when stop pressing the key for longer than one second or

pressing another key, will the system send the real key code to the application

program.

The function key.

This key cannot be activated alone, it must be pressed with one numeral key at

the same time. For example, FN + 1 generates function #1, FN + 2 generates

function #2, etc (up to 9 functions). Also, this key can be combined with the

UP/DOWN arrow keys to adjust the contrast of the LCD. And when this key is

combined with the ENTER key, it will turn ON/OFF the backlight.

Power On/Off.

To prevent a faulty push, it needs about 1.5 sec continuous pressing to turn

On/Off the power.