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JANUS? 2020 Hand-Held Computer (4MB) - Intermec

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NF BC Configuring the Reader<br />

5<br />

This chapter discusses the reader’s configuration parameters and files, explains how<br />

to configure the reader, describes how to restore the default configuration, and<br />

concludes by listing the configuration parameters.<br />

About the Configuration Parameters<br />

You can customize many operating characteristics of the <strong>JANUS</strong> reader, such<br />

as the volume of its beeper and the bar code symbologies it decodes. These<br />

characteristics are governed by configuration parameters. The values you set<br />

for the parameters determine how the reader operates.<br />

By customizing the reader’s configuration, you can set up the <strong>JANUS</strong> <strong>2020</strong> to<br />

operate easily and efficiently within your data collection system.<br />

Note: To learn the purpose and syntax of each configuration command, see Chapter 12,<br />

“Configuration Command Reference.” The commands are listed alphabetically.<br />

The configuration parameters can be organized into three groups, which are<br />

discussed in the next sections: bar code symbologies, communications, and<br />

general operation. Therefore, when you configure the reader, you are<br />

performing one or more of these tasks:<br />

• Choosing the Symbologies the Reader Will Decode<br />

• Specifying How the Reader Will Communicate<br />

• Controlling How the Reader Will Operate<br />

Choosing the Symbologies the Reader Will Decode<br />

This list contains all the bar code symbologies the reader can decode:<br />

Codabar Code 2 of 5 Interleaved 2 of 5 (I 2 of 5)<br />

Code 11 Code 39 MSI<br />

Code 128 Code 49 Plessey<br />

Code 16K Code 93 UPC/EAN<br />

To ensure that the reader can operate quickly and efficiently, you should<br />

enable only the bar code symbologies that you are going to scan. If you enable<br />

multiple symbologies, the reader may on rare occasions decode a bar code<br />

according to the wrong symbology and produce erroneous results.<br />

When you enable each bar code symbology, you may need to set a check digit,<br />

the length of the bar code label, or other options. For help, see Chapter 12,<br />

“Configuration Command Reference.”<br />

5-3

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