When data is scanned, the data is sent to the host system via the base. The cordless scanner recognizes data acknowledgement (ACK) from the base. If it cannot be determined that the data has been properly sent to the base, the scanner issues an error indication. You must then check to see if the scanned data was received by the host system.

1) Good Read

2)ACK from

base

3)Base sends data to host

RF (Radio Frequency) Module Operation

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

System Conditions

The components of the cordless system interact in specific ways as you associate the scanner with its base, as you move a scanner out of range, or bring a scanner back in range. The following information explains the cordless system operating condi- tions.

Linking Process

Once a scanner is placed into a cordless charge base, the scanner’s battery charge status is checked, and software automatically detects the scanner and links it to the base depending on the selected link mode.

Scanner Is Out of Range

The cordless scanner is in communication with its base, even when it is not transmitting bar code data. Whenever the scanner can’t communicate with the base for a few seconds, it is out of range. If the scanner is out of range and you scan a bar code, the scanner issues an error tone indicating no communication with the base. A cordless charge base can also sound an alarm. Refer to Out-of-Range Alarm, page 3-9.

Scanner Is Moved Back Into Range

The scanner relinks if the scanner or the base have been reset, or the scanner comes back into range. If the scanner relinks, you will hear a single chirp when the relinking process is complete. Refer to Out-of-Range Alarm on page 3-9for further information.

Out of Range and Back into Range with Batch Mode On

The scanner may store a number of symbols (approximately 14,000 U.P.C. symbols; others may vary) when it is out of range and then send them to the base when back in range (see Batch Mode on page 3-10).

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