Hand Held Products 7400 用户手册

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页码 133
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ON/SCAN Key
The ON/SCAN key is centrally located for easy use with the right or the left hand. On the 7450 terminal, the ON/SCAN key 
operates as an On or system wakeup control; scanning is activated with the handle trigger.
Cursor Keys
The centrally located cursor keys allow full Windows® Pocket PC navigation.
Audio Signals
The Dolphin 7400/7450 terminal has an internal speaker that sounds audio signals as you scan bar code labels and enter data. 
Signals are emitted at a sound level of 80 dB sound pressure level at two feet. The operating frequency range is 500 Hz up to   
8 kHz. The speaker can also be used for playing sounds using WAV files.
Keyboard
The Dolphin 7400/7450 terminal’s keyboard features epoxy-coated keys and is backlit for easy use in dark and dim lighting 
conditions. The keyboard’s yellow background enhances the readability of the numeric keys. The centrally located ON/SCAN 
key and other important keys allow for easy imaging, bar code scanning and application navigation. All keyboard versions are 
suited for right-handed and left-handed use.
There are three keyboard options for the Dolphin 7400/7450 terminals:  43-key alpha/numeric, 35-key numeric/alpha and 56-key 
alpha/numeric.
RF Antenna
The Dolphin 7400/7450 RF terminal’s antenna is a unity gain, quarter-wave, monopole antenna.
 43-key alpha/numeric keyboard
35-key numeric/alpha keyboard
56-key alpha/numeric keyboard