8 HH492 User Guide
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 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. The base provides a
communication range of 100 feet (30m) between the scanner and base.
System Conditions
The components of the cordless system interact in specific ways as you associate a
scanner to a base, as you move a scanner out of range, bring a scanner back in
range, or swap scanners between two cordless systems. The following information
explains the cordless system operating conditions.
Link Process
Once a scanner scans the 2D MAC address on the bottom of the base, a new link
will start and you will hear 2 beeps when it is linked.
Scanner Is Out of Range
The cordless scanner is in communication with its base, even when it is not
transmitting barcode 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 barcode, the scanner issues an error tone indicating no communication with the
base.
Scanner Is Moved Back Into Range
The scanner relinks if the scanner or the base comes back into range. If the
scanner relinks, you will hear 2 chirps when the relinking process is complete.
Out of Range and Back into Range with Batch Mode On
The scanner may store a number of symbols (approximately 500 U.P.C. symbols;
others may vary) when it is out of range and then send them to the base or Access
Point when back in range (see Batch Mode on page 11).
You will not hear a communication error tone in this mode, but you will hear a short
buzz when you press the trigger if the radio communication is not working. Once
the radio connection is made, the scanner produces a series of beeps while the
data is being transferred to the base.
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