Symbol SE 2223, Integration Manual

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SE 2223/3223 Scan Engine Integration Guide
1-D and PDF Decoding
The on-board SCSD provides fully decoded PDF and 1-D output using the SSI protocol.
Scan Pattern Control: Scan Engine and Decoder Interface
The scanner’s aggressiveness depends on how well the scan pattern covers the target bar
code. This partly depends on the operator’s aiming skill, but the SE 3223/3223 also allows
for decoder adjustments of the scan pattern. The decoder can adjust the scan pattern to fit
the target symbol by evaluating optical feedback from the area scanned.
Grounding
Because the SE 2223/3223 chassis is at GND potential, a grounded host can accept the
SE 2223/3223 directly. If the host is not at GND potential (as in SE 1200 installations),
isolation can be accomplished by inserting an insulator between the two chassis, and if
metallic screws are used, shoulder washers are required to isolate the screws from the
host. Non-metallic screws may also be used if mechanical considerations permit.
Power
The SE 2223/3223 uses +5V power ±10% with a typical current draw of 300 mA. “Hot-
plugging” the interface connector with power activated is not allowed.
ESD
The SE 2223/3223 is protected from ESD events that may occur in an ESD-controlled
environment. Use care when handling the scan engine. Be sure grounding wrist straps and
properly grounded work areas are used.
Environment
The SE 2223/3223 must be sufficiently enclosed to prevent dust particles from gathering
on the mirrors, laser lens and the photodiode. Dust and other external contaminants
eventually cause degradation in unit performance. Symbol does not warrant performance
of the engine when used in an exposed application.