Getting Started
1 - 5
Miniscan Block Diagram Descriptions
Decoded Scan Engine
- The scan engine emits a beam of laser light that reflects off the bar code to be decoded.
Black bars absorb light, white spaces reflect light. The scan engine collects the reflected light and processes the
signal through several analog filters. The filtered signal is digitized into a Digitized Barcode Pattern (DBP). Timing
information is analyzed by the decoder micro-controller to decode and transmit the data contained in the bar code.
Data transmission is carried out using Motorola’s proprietary SSI Interface.
Interface Board
- The interface board adapts the scan engine's interface into usable signals and data for the
intended host. It also contains a beeper (Symbol MS1204FZY/2204/2204VHD/3204 models only) and red/green
LED for audio/visual feedback, and provides for an external trigger and external beeper.
The MiniScan interface board converts TTL level SSI signals to proper RS-232 levels for connection to any RS-232
compliant host.
DB9
- The DB9 connector provides an outlet for the various interface signals used between a MiniScan scanner
and the host. It also maintains pin compatibility with the previous generation LS 1220 MiniScan host cables.
Содержание MiniScan MS1204FZY
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