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System Hardware Description 2–1
SYSTEM HARDWARE DESCRIPTION
2
2.1 Introduction
The major components of the system are the SCANTEAM 3700 Machine Mount CCD
and the host instrument or equipment. Electrical power is generally supplied to the 3700
Machine Mount CCD by the host system. Figure 2.1 shows the functional relationships
between the components of the basic system.
Scanning Circuitry ✺
Scans Bar Code
Auxiliary Trigger
Device
(Optional)
SCANTEAM
3700
Machine
Mount CCD
Host System
Power Supply
Decoder
Host Application
Asynchronous
Communication
Supplies Power to 3700 (typically)
Sends Configuration Commands
Sends Operational Commands
Sends Configuration Status Query
Commands
Sends Software Trigger Signal
(Optional)
Enables Scanning Circuitry
Reads Bar Code
Sends Decoded Bar Code
to Host
Bar Code
Provides Data Input
Triggers Decoder
Aux Trigger
✺ Scanning circuitry is internal to 3700.
Figure 2.1 Basic System Operation