Honeywell 4820 Scanner User Manual


 
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Serial Trigger Modes
Manual/Serial Trigger, Low Power
You can activate the image scanner either by pressing the trigger, or using a
serial trigger command (see Trigger Commands on page 12-4). When in man-
ual trigger mode, the image scanner scans until a barcode is read, or until the
trigger is released.
When in serial mode, the image scanner scans until a barcode has been read
or until the deactivate command is sent. In serial mode, the image scanner can
also be set to turn itself off after a specified time has elapsed (see Read Time-
Out (Serial Trigger Mode), which follows).
Read Time-Out (Serial Trigger Mode)
Use this selection to set a time-out (in milliseconds) of the image scanner’s trig-
ger when using serial commands to trigger the image scanner. Once the image
scanner has timed out, you can activate the image scanner either by pressing
the trigger or using a serial trigger command. After scanning the Read Time-
Out barcode, set the time-out duration (from 0-300,000 milliseconds) by scan-
ning digits on the Programming Chart inside the back cover, then scanning
Save.
Default = 30,000 ms.
Image Scanner Power Time-Out Timer
Note: The Image Scanner Power Time-out Timer option only applies to Manual/
Serial Trigger.
When there is no activity within a specified time period, the image scanner
enters low power mode. Scan the appropriate Image Scanner Power Time-Out
barcode to change the time-out duration (in seconds).
Note: Scanning zero (0) is the equivalent of setting no time-out.
* Manual/Serial Trigger
Read Time-Out