urmet domus IPerCom 3.1.0 System Technical Manual For The Installer page 355

All residents of Stair "02" are automatically enabled to open the accesses associated with the main Call
Module and the Key Reader with a key code and a door code (both the Call Module and the Key Reader are
on the topological path of these residents).
Figure 438: User setting screen
If you want to give the residents of Stair "02" access to other accesses that are not on their topological path
(e.g. a Key Reader on the topological node of Stairs "01"), you must use the access control service.
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