Roco and Fleischmann z21 XL Serie Mode D'emploi page 52

Z21 App
System prerequisites
Our Z21 app currently supports
devices with iOS Version 11 and
higher, or with Android Version 5
and higher, in order to guarantee
full functionality.
Tablets and smartphones with an
older system version can access
our temporary app at any time,
which is also available in the
App Store and Google Play Store.
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Depending on your requirements, you can select a schematic signal box in order to create your track
plan. The operation was created based on popular control software programmes, and the design emula-
tes original control panels.
Here is the link to the video:
Schematic signal box