25
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.
Scanner LED
Meaning
Red,
flashing
Charging (On/Off ratio 0.5 s: 0.5 s)
Red,
solid
Charging error
Red,
on-off
Power on, with one long beep (high tone, LED on for 1
second)
Data saved to buffer when transmit buffer is enabled and the
scanner is out of range, with two short beeps (high-low tone)
Transmit buffer full, with one long beep (low tone)
Transmit buffer disabled, with one long beep (low tone)
Memory full in memory mode, with two short beeps (high-low
tone)
Green,
on-off
Good Read, with one short beep (high tone) and beeper pitch and
duration programmable
Blue,
flashing
First, flashing blue (On/Off ratio 0.5 s: 0.5 s) for two minutes
indicates the scanner is waiting for connection, and goes off if no
connection is established, then flashing red (On/Off ratio 0.3 s:
2.5 s) indicates the scanner is inactive.
It is ready for connection only while the LED is flashing blue —
SPP Slave: waiting host to connect
HID or SPP Master: trying to connect to host
Using 3656: trying to connect to 3656
Red,
flashing
Flashing red (On/Off ratio 0.3 s: 2.5 s) indicates the scanner is
inactive and its CPU running at low speed to save power —
No WPAN connection is established after waiting for two
minutes
Blue,
flashing
Flashing blue (On/Off ratio 0.1 s: 0.1 s) indicates the scanner
receives a PIN code request from host (flashing more quickly
than waiting connection).
Blue,
flashing
Flashing blue (On/Off ratio 0.02 s: 3 s) indicates the scanner has
established a WPAN connection successfully.
Blue,
flashing
Green,
flashing
Flashing blue and green (On/Off ratio 0.1 s: 0.1 s) indicates an
error occurs while entering the PIN code. Press the trigger to get
ready for re-connecting.
Red,
flashing
Configuration Mode (On/Off ratio 0.5 s: 0.5 s)
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