Preface
products, you will need to either press a rear-panel OFF switch or remove the
power source from the instrument.
Remove.
This is a physical means to clear the data by removing the memory
device from the instrument. Instructions are available in the product Service
Manual.
Sanitize.
This eradicates the data from media/memory so that the data cannot
be recovered by other means or technology. This is typically used when the
device will be moved (temporarily or permanently) from a secured area to a
non-secured area.
Scrub.
This is equivalent to sanitize.
User Accessible.
User is able to directly retrieve the memory device contents.
User-modifiable.
The user can write to the memory device during normal
instrument operation, using the instrument interface or remote control.
User-modifiable.
The user can write to the memory device during normal
instrument operation, using the instrument interface or remote control.
Volatile memory.
Data is lost when the instrument is powered off.
Device terms
User data.
Describes the type of information stored in the device. Refers to
waveforms or other measurement data representing signals connected to the
instrument by users.
User settings.
Describes the type of information stored in the device. Refers
to instrument settings that can be changed by the user.
Both.
Describes the type of information stored in the device. It means that
both user data and user settings are stored in the device.
None.
Describes the type of information stored in the device. It means that
neither user data nor user settings are stored in the device.
Directly.
Describes how data is modified. It means that the user can modify
the data.
Indirectly.
Describes how data is modified. It means that the instrument
system resources modify the data and that the user cannot modify the data.
iv
TTR500 Series and TCAL500 Declassification and Security Instructions
