Symbol P 370 RF, Reference Manual

Page: 39 / 183

3-7
Operation
Scanning Transmission Range
RF Communication Errors
RF communication errors occur when the scanner is out of range from the cradle during a
scan data transmission attempt. A communication error is indicated by 4 beeps (LO HI LO
HI) after a bar code is scanned, although the bar code data may appear on the host display.
This happens when the cradle receives the bar code data but the scanner did NOT get the host
response from the cradle, and therefore timed out.
The scanner reported an RF communication error because it did not see the host response
before time-out. However, data may have been transmitted to the host. Since the data has
been sent, normal communications must be re-established.
Restoring Normal RF Communications
Move the scanner closer to the cradle so the transceivers can communicate with each other
better. Then re-scan the bar code. The scanner sounds a good decode beep and no error beeps.
If the cradle had previously sent data to the host, it will not send this re-scanned data to the
host. Resume normal scanning.
Default MCL Application
The scanner is shipped from the factory with a default MCL application installed. This
application demonstrates most of the operations of the scanner, scanning and keyboard entry
in POS modes of operation.
The default MCL application is created using the MCL-Designer application. The MCL-Link
application is used to send and receive data to and from the scanner using a simple RS-232
link with a host computer.
Your MCL application may be different than what is described here. See your System
Developer for more information.
Note: The combination of the <FUNC> and <BK> keys are used throughout
the default application to clear any entry or exit from an operation.
When the unit is initially powered up (e.g., when a new battery is inserted), it displays the
system start-up banner. Alternatively, the scanner can be reset manually using the <FN><*>
key combination. The system banner appears as follows: