USER INDICATIONS FOR QBT/QM2500 (GUN ONLY)
PRODUCT REFERENCE GUIDE   
299
USER INDICATIONS FOR QBT/QM2500 (GUN ONLY)
Table 33 User Indications for QBT/QM2500 Gun
STATUS GOOD READ LED BATTERY LED BUZZER
Power-up
OFF OFF
Rising Beeps’ 
Sequence
USB Enumeration Phase
250 msec
a
 ON ↔ 250 msec OFF
OFF OFF
USB Suspend
Depends on Power Cable and spe-
cific configurations
OFF OFF
Idle
OFF OFF OFF
While Reading
OFF OFF OFF
Decode Done
Solid ON
Programmable Duration (1 s 
default)
OFF Single Beep
Reader Disabled (POS)
Communication with host 
not established
100 msec ON 
↔ 900 msec OFF
OFF OFF
Firmware Upgrade
250 msec ON 
↔ 250 msec OFF
OFF OFF
Host Download
250 msec ON 
↔ 250 msec OFF
OFF OFF
Paging Answer
5 cycles:
100 msec ON 
↔ 900 msec OFF
OFF
5 Beeps
(when LED ON)
Enter Service Mode
No Effect OFF Beeps' Sequence
Label Programming
No Effect OFF Beep
ACK Received on 
Transmission
OFF OFF
Single Program-
mable Beep
(OFF by default)
ACK NOT Received on 
Transmission
OFF OFF Wrong Beep
base station in USB 
Suspend
Depends on Power Cable and spe-
cific configurations
OFF OFF
Configuration Alignment
250 msec ON 
↔ 250 msec OFF
OFF OFF
Charge in Progress 
through USB-C
b
OFF
Blinking: 1 s ON . 1 s OFF
Green (charge = 50% - 
99%)
Amber (charge = 1% - 
49%)
Red (charge less than 1%)
Reader is unusable until 
1% is reached
OFF
Charge Complete through 
USB-C
OFF
Solid Green
It goes OFF when 
unplugged
OFF
Charge Fault
OFF OFF OFF
Charge in Progress 
through base station
OFF OFF OFF
Charge Complete through 
base station
OFF OFF OFF