5 - 22 MP7000 Scanner Scale Integrator Guide
Barcode data 
transmission error
4 Low Beeps Red No change Transmission error.
Barcode data 
conversion error
5 Low Beeps Red No change Conversion or Format error.
RS-232 host parity error  Low, Low, Low, 
Extra Low 
Beeps
Red No change RS-232 Receive error.
BELL (RS-232) High Beep None No change A <BEL> character is received over 
RS-232.
Volume
Pressed and release 
Volume/Tone
 button
Annunciates 
volume level
No change Button LED 
blinks for two 
seconds (at 2 
Hz)
Volume change: causes the current 
volume level to be annunciated. If 
pressed within two seconds of the 
previous (or while volume LED is 
blinking), it annunciates the volume 
at the next level. Once the maximum 
volume level is reached, it wraps and 
begins at the lowest volume level. 
Press and hold
 
Volume/Tone
 button for 
two seconds
Annunciates 
decode tone
No change Button LED 
blinks for two 
seconds
Decode tone changes Subsequence 
decode tones are heard every 
second if continuously held. Decode 
tones cycle.
Decode tone change
(Describes action 
above)
Button click; 
decode beep at 
next tone (wrap)
No change No change After holding the 
Volume
 button for 
two seconds, the next decode tone 
sounds. For each additional second 
the decode tone changes again.
Table 5-1    Beeper and LED Indicators (Continued)
Condition
Beeper 
Indication
System 
LED 
Indication
Button LED 
Indication
Description