
17
Update
Chapter 1
Understanding the Barcode Scanner
1.3 LED INDICATOR
The triple-color LED on top of the scanner is used to provide user feedback. For example,
the LED becomes solid red and goes off quickly upon powering on or running out of
transmit buffer. You may tell the difference by the beeps – you will hear a long beep of
high tone when powering on the scanner, and a long beep of low tone when the transmit
buffer becomes full.
LED – Red/Green/Blue Meaning
Green and goes off quickly, then becomes
red, and finally goes off when the [Delete]
key is released.
Power off
Red, and goes off quickly
Power on, with one long beep (high tone)
Transmit buffer full, with one long beep (low
tone)
Memory full, with two short beeps (high-low
tone)
Green, and goes off quickly Good Read, with one short beep (high tone) and
beeper pitch and duration programmable
Flashing blue (On/Off ratio 1:1) for one
minute waiting for connection and goes off,
then becomes flashing red (On/Off ratio 20
ms:3 sec)
Waiting for connection only while the LED is flashing
blue —
SPP: waiting host to connect
HID: trying to connect to host
Flashing blue (On/Off ratio 1:1) Dynamic PIN code request from host (flashing more
quickly than waiting connection)
Flashing blue (On/Off ratio 1:6) Bluetooth connection established
Flashing blue and red Dynamic PIN code input error
Flashing red (On/Off ratio 20 ms: 3 sec) CPU running at low speed, for example, after
Bluetooth connection out of range
Flashing red Configuration Mode
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