LED Definitions
Quick Reference Guide
7
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.
Low/high 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 oper-
ate at the highest power level.
The power-up beep occurs more
than once.
The USB bus may put the scanner in a
state where power to the scanner 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 <BEL> character is received and Beep
on <BEL> is enabled.
LED
Indication
Off
No power is applied to the scanner, or the
scanner is on and ready to scan.
Green
A barcode was successfully decoded.
Red
A data transmission error or scanner mal-
function occurred.
Beeper Sequence
Indication
