Kathrein UFD 170 - Manual (Page 73)

Turntable Unit Software Download
73
Do not turn off the system during the download.
The next message you see will be “HDP Programme Sending”. The
software is transferred to the control unit in the UFD 170.
For safety reasons, two software versions are saved, so that if one
version fails or if there is a download error, an alternative software
version will be available for operation of the turntable. The oldest versi-
on (white text) is always overwritten automatically.