Hand Held Products 2020, 4620 system manual Basic System Operation, Cordless Base, Cordless Imager

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Basic System Operation

Cordless Base

The cordless base provides the link between the cordless imager and the host system. The base contains an interface assembly and an RF communication module. The RF communication module performs the data exchange between the cordless imager and the interface assembly. The control assembly coordinates the central interface activities including: transmitting/receiving commands and data to/from the host system, performing software activities (parameter menuing, visual indicator support, power-on diagnostics), and data translation required for the host system.

The base also is the imager’s battery charger. Refer to "Base Charge Mode" on page 3-3 for additional information.

RF (Radio Frequency) Module Operation

The cordless system uses a state-of-the-art two-way Bluetooth radio to transmit and receive data between the imager and the base. Designed for point-to-point and multipoint-to-single point applications, the radio operates using a license free ISM band, which sends relatively small data packets at a fast data rate over a radio signal with randomly changing frequencies, makes the cordless system highly responsive to a wide variety of data collection applications and resistant to noisy RF environments. Bluetooth Class 2 power level provides range of 33 feet (10m) depending on the environment.

Cordless Imager

The cordless imager enables fast and accurate bar code scanning using a non- contact area imager.

The imager is comprised of an area imager, a decode/control assembly, and an RF communication module. The scan engine performs the bar code image illumination and sensing. The decode/control assembly coordinates the central communication activities including: capturing and decoding the bar code image data, performing software activities (parameter menuing, visual indicator support, low battery indication), and data translation required for the host system. The RF communication module performs the data exchange between the imager and the base.

IMAGETEAM™ 2020/4620 System Manual 3 - 1