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Theory of Operation
Overview .........................................................................................................................................................16
Host Interface Signals .....................................................................................................................................17
Usage of Host Interface Signals......................................................................................................................18
Power Mode Descriptions ...............................................................................................................................20
Serial Configurations .......................................................................................................................................22
Abbreviated ASCII Table.................................................................................................................................23
Operational Timing
Power Up/Boot Up...........................................................................................................................................24
Power Down/Suspend/Power Removed .........................................................................................................26
Decode Timing ................................................................................................................................................27
Summary of Operation Timings.......................................................................................................................28
Depth of Field vs Bar Code Element
IS4910 .............................................................................................................................................................29
IS4911 .............................................................................................................................................................30
Exposure Time for Image Acquisition ............................................................................................................31
Design Specifications
Operational......................................................................................................................................................32
Mechanical ......................................................................................................................................................33
Environmental .................................................................................................................................................33
Electrical..........................................................................................................................................................34
Detailed Electrical Specifications.....................................................................................................................34
Current Waveforms .........................................................................................................................................36
Imaging Engine and Decode PCB Terminations
Imaging Engine Interface Connector...............................................................................................................38
Decode Board (USB & TTL) Interface Connector ...........................................................................................39
Decode Board (USB) Output to Host Connector.............................................................................................40
Decode Board (TTL) Output to Host Connector..............................................................................................41
Flex Cable Specifications
Flex Cable Pinout – Imaging Engine Connection............................................................................................42
Flex Cable Pinout – Decode Board Connection..............................................................................................43
Dimensions......................................................................................................................................................44
Installation Notes.............................................................................................................................................45