Honeywell IS4921 Integration Manual page 4

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
iii