Technical Specifications
312 Gryphon™ I GD/GBT/GM4500
LED and Beeper Indications
The imager’s beeper sounds and its illumination flashes or changes color to
indicate various functions or errors on the reader. A “Green Spot” also lights to
indicate a good read. The tables below list these indications.
Table 28. LED and Speaker Indications
Indication LED Beeper
Power-up
Upper LED flashes/blinks on pow
er-up, however, this
may be too rapid to view. With a USB interface, the LED
blinks until enumeration with the host is completed.
Imager beeps four times at
highest frequency and volume
upon power-up.
Good Read
Upper green LED comes on for programmed time
(d
efault).
LED behavior for this indication is configurable using
Ala
ddin utility.
One beep at current frequency,
v
olume, mono/bi-tonal setting
upon a successful label scan.
ROM Failure 200ms on / 200ms off
Imager sounds one error beep
at hi
ghest volume for 200 mS.
Limited Scanning
Label
Read
N/A
Imager 'chirps' six times at the
highest frequency and
current
volume.
Imager Disabled The LED blinks continuously 100mS on / 900 mS off N/A
User Indications for GD4500
Indication 3GL & Good Read LEDs Buzzer
Power-up OFF Rising Beeps’ Sequence
USB Enumeration Phase
250 ms
a
a.
“ms” stands for milliseconds, equivalent to 1/1000
th
of a second
ON
↔ 250 ms OFF
OFF
USB Suspend
Depends on Power Cable and specific
configurations
OFF
Idle OFF OFF
While Reading OFF OFF
Decode Done
Solid ON
Programmable duration (1 s default)
Single Beep
Reader Disabled (POS)
Communication with host not
es
tablished
100 ms ON
↔ 900 ms OFF
OFF
Firmware Upgrade
250 ms ON
↔ 250 ms OFF
OFF
Host Download
250 ms ON
↔ 250 ms OFF
OFF
Enter Service Mode No Effect Beeps’ Sequence
Label Programming No Effect Beep
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