Newland EM3000 Especificações descarregar pdf (Página 129)

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Prefix/Suffix

Introduction

1D barcodes could contain digits, letters and symbols, etc. 2D barcodes could contain more data, such

as Chinese characters and other multi-byte characters. However, in reality, they do not and should not

have all the information we need, such as barcode type, date and time of scan, delimiter, and so on, in

order to keep the code short and flexible.

Prefix and Suffix are how to fulfill the needs mentioned above. They can be added, removed, and

modified while the original barcode message is still in tact.

Barcode processing sequences:

1. Intercept barcode message

2. Add Prefix/Suffix

3. Pack

4. Terminate with Stop Suffix and transmit

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Newland EM3000 Especificações Página 129