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About Combining Scanning with Bluetooth
The Cordless Hand Scanner represents an optimal combination of proven
laser bar code scanning technology and state-of-the-art Bluetooth wireless
connectivity. Because of the problems inherent in the intermittent storage of
scanned data in on-board memory if the Bluetooth connection is lost, the
CHS is designed to operate only when connected to the host, with the
powerful Class 1 radio providing the maximum possible connection range.
The user is advised of the connection status with a single beep when the
CHS connects to the host and a double beep when the connection is closed
or lost. As with any wireless device, connectivity range can be affected by a
variety of environmental variables.
The most likely source of errors in any cordless scanning system is not in
the scanning and decoding process, but in the transmission of the data to the
host. Using Socket’s Error-Proof Protocol (patent pending), the beeper and
green LED signals provided by the CHS confirm not only a successful scan
but also the successful transmission of the scanned data to the host. Users
familiar with bar code scanning may notice a slight delay between the
successful scan and shut off of the laser and the beep and green LED from
the CHS confirming completed transmission of the data. In most instances,
this delay is less than 250 ms (milliseconds), but may be slightly longer as
the connectivity range limit is approached.
CHAPTER 1: INTRODUCTION 5