Do
or
st
ation
/p
o
we
r s
upply
un
it
s
Door station/power supply units
20
Delete settings
Activating/deactivating adjustment protection
TwinBus door selector switch 1 4982
Device description
A door station is added to a system using door selector switch 1 4982. An additional door selector switch is needed
for every 2 additional door stations. A maximum of 8 main door stations can be connected.
The loudspeaker, the door opener and the camera signal are switched through from the door station to the intercom
units. The device is operated as an additional device with a TwinBus power supply unit 1 7573.
Connection
Block diagram:
Door selector switch 1 4982
Activity
Result
Activity
Result
Note:
Adjustment protection remains in effect after activation on the TwinBus power supply unit
1 7573 in indoor telephones and indoor video stations even if electrical power is turned off
to the indoor telephone or indoor video station.
2
1
Press "P"
and then "Z"
until LD 1 is lit
yellow briefly
Press
Prog. prot.
ON
until LD 3
is lit green
Press
Prog. prot.
OFF
until LD 3 (green)
goes out
2
2
2
RiTTO
1 4760
1 4753
2
1 7630
ED
2
1 7630
ED
2
1 7630
ED
1 7573 1 4982
2
UV
2
4
4
RiTTO
1 4760
1 4753
B0098-0
