LED and Beeper Indications
38 QuickScan™ QBT2400
LED and Beeper Indications
The reader’s beeper sounds and its LED illuminates to indi-
cate various functions or errors on the reader. An optional 
“Green Spot” also performs useful functions. The following 
tables list these indications. One exception to the behaviors 
listed in the tables is that the reader’s functions are program-
mable, and so may or may not be turned on. For example, cer-
tain indications such as the power-up beep can be disabled 
using programming bar code labels.
Indication Description LED Beeper
Power-up 
Beep
The reader is in the 
process of power-
ing-up.
N/A
Reader beeps 
four times at 
highest fre-
quency and vol-
ume upon 
power-up.
Good Read 
Beep
A label has been 
successfully 
scanned by the 
reader.
LED behavior for 
this indication is 
configurable via 
the feature “Good 
Read: When to 
Indicate” (see the 
PRG for informa-
tion.)
The reader will 
beep once at cur-
rent frequency, 
volume, mono/
bi-tonal setting 
and duration 
upon a success-
ful label scan.
ROM Failure
There is an error in 
the reader's soft-
ware/program-
ming
Flashes
Reader sounds 
one error beep at 
highest volume.
Limited 
Scanning 
Label Read
Indicates that a 
host connection is 
not established 
when the IBM or 
USB interface is 
enabled.
N/A
Reader 'chirps' six 
times at the 
highest fre-
quency and cur-
rent volume.
Reader 
Active Mode
The reader is 
active and ready to 
scan.
The LED is lit 
steadily
a
N/A
Reader
Disabled
The reader has 
been disabled by 
the host.
The LED blinks 
continuously
N/A