Intermec Trakker Antares 2410 System Manual page 60

Chapter 2—Configuring and Managing the Terminals
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Additionally, these types of files are used by the Trakker Antares terminals:
• Reader command files
• Firmware upgrade files
Package Control Files
A package control file is automatically created for each package
downloaded to the terminal. The Avalanche Agent uses control files to
track which packages are installed on the client and version information
about the package. If you delete a .CTL file on the client and reboot, the
corresponding package is re-downloaded to the terminal.
The package control file assumes the name of the downloaded package
with .CTL as the file extension. However, there is one exception: data sent
with network profile information is represented by a special control file
named _IPCFG.CTL.
Network Profiles
A network profile is a collection of settings that lets you download certain
network parameters to the terminal. Intermec recommends that you use
network profiles to help manage your terminals. When a network profile is
enabled, the Avalanche Agent downloads a file named AVA-NET.DHP to
the terminal. The Enabler processes the file and renames it with an .SDH
file extension. If an .SDH file with the same name is already present, it is
replaced by the new .SDH file.
When you upgrade the terminal with a Trakker Antares firmware upgrade
package, all .SDH files on the terminal are renamed with the .DHP file
extension so that they can be reprocessed to restore the configuration.
Reader Command Files
Reader command files are text-based files (.RCD) that can contain any
Trakker Antares reader or configuration command.
A reader command file can be included in any package and is processed
after the package is downloaded to the terminal. When the terminal
processes reader command files, it scans for and processes all .RCD files.
Reader command files have an .RCD file extension. After the reader
command file is processed, it is renamed with an .SCF file extension. If an
.SCF file with the same name is already present, it is replaced by the new
.SCF file.
When you upgrade the terminal with a Trakker Antares firmware upgrade
package, all .SCF files on the terminal are renamed with the .RCD file
extension so that they can be reprocessed to restore the configuration.
Trakker Antares 2400 Family System Manual