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System File). Some examples of system files are the message file (MSG.HSF), and the
layout file for the external keyboard (KBDLYOUT.HSF).
By default, system files are not displayed. However, the display of system files can be
activated via the Options menu (see chapter 5.1.8.5).
3.3.9 Energy Saving Features
Since the Braille Systems are battery operated, they were designed specifically for
efficiency in energy consumption. Whenever possible, various components of the Braille
System are deactivated in order to conserve energy.
If no key is pressed on a Braille System for several minutes, it will enter sleep mode. In
sleep mode, the Braille display is turned off and some of the electronic modules are also
deactivated. As soon as any key is pressed, the Braille System "wakes up" within a
fraction of a second, and will be fully operational. You will recognize this because the
tactile pins will be pushed backup.
Further explanations concerning the set-up of the energy saving features are contained in
chapter 7.5.
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