User manual
31
b) Indoor Unit
The indoor unit must be installed inside the house (e.g. on the inside, next to the door); it must not get moist
or wet. To ensure best radio reception, the indoor unit must not be installed on metal surfaces.
White
Red
Black
A working current door opener ("Fail Secure" door opener) is required. This door opener is the door opener
type common for entrance doors.
The trap lock of the door opener is only unlocked in this door opener type when operating voltage is pend-
ing, e.g. when the door opener button in the apartment is pushed. Then the door can be opened and the
visitor is let in. The door is locked if no operating current is pending.
Depending on the door opener used, proper polarity must be observed (for conventional electromagnetic
door openers, this is usually not required); for this, always observe the manufacturer's information.
A door opener of type "Fail Safe" (quiescent current door opener) cannot be used. This is a special door
opener, e.g. used for a door to be used as an escape route.
In this door opener type, the trap lock of this door opener is only unlocked when there is no operating
current. This permits leaving of the room in case of power failure since the door opener unlocks the door
automatically.
Proceed as follows:
• Remove the T-shaped cover on the rear of the indoor unit; the connection termi-
nals are placed below this.
• Connect the outdoor unit to the indoor unit via the 3-wired cable. Observe the
coloursofthethreecables;seelabelinthegureaboveorprintontheindoor
unit ("White", "Red", "Black").
• Connect the two cable lugs of the mains adapter to the two connection terminals;
always observe proper polarity (plus/+ and minus/-).
• The two-pole cable from the outdoor unit must be connected to a door opener
(not enclosed).










