Motorola LS7708 - Manual (Page 12)

12 Symbol LS7708
Lo-hi-lo beep The Code 39 buffer was erased or there was an
attempt to clear or transmit an empty buffer.
Lo-hi beep A successful transmission of buffered data.
Host Specific
USB only
4 short high beeps Scanner has not completed initialization. Wait
several seconds and scan again.
Scanner gives a power-up
beep after scanning a USB
Device Type. Communication with the bus must be
established before the scanner can operate at
the highest power level.
This power-up beep occurs
more than once. The USB bus may put the scanner in a state
where power to the scanner is cycled on and off
more than once. This is normal and usually
happens when the PC cold boots.
RS-232 Host only
1 short high beep A <BEL> character is received and Beep on
<BEL> is enabled.
RS-232 Auxiliary Port only
1 short high beep A complete block of data was received and sent
to the host, either due to a carriage return or
because the two-second serial response
timeout has elapsed.
4 long low beeps A data overrun condition has occurred. Abstain
from scanning data from other ports when large
amounts of data are sent to the RS-232
Auxiliary port.
Beeper Sequence Indication