Led definitions – Symbol Technologies LS 4208 User Manual
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LED Definitions
In addition to beeper sequences, the scanner communicates with the user using a two-
color LED display. The table below defines LED colors that display during scanning.
Code 39 Buffering
Hi/lo beep
New Code 39 data was entered into the buffer.
3 Beeps - long high beep
Code 39 buffer is full.
Lo/hi/lo beep
The Code 39 buffer was erased or there was an attempt to clear or
transmit an empty buffer.
Lo/hi beep
A successful transmission of buffered data.
Host Specific
USB only
4 short high beeps
Scanner has not completed initialization. Wait several seconds and
scan again.
Scanner gives a power-up beep
after scanning a USB Device
Type.
Communication with the bus must be established before the scanner
can operate at the highest power level.
This power-up beep occurs
more than once.
The USB bus may put the scanner in a state where power to the scan-
ner is cycled on and off more than once. This is normal and usually
happens when the host PC
cold boots.
RS-232 only
1 short high beep
A
LED
Indication
Off
No power is applied to the scanner, or the scanner is on and ready to scan.
Green
A bar code was successfully decoded.
Red
A data transmission error or scanner malfunction occurred.
Beeper Sequence
Indication