Installation: Assembly, connection and start-up
43
In
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Connection
Connect screening on incoming and outgoing lines. Connect all unused wires as screen for YR lines.
Button adapter 1 4645 must be used when multiple indoor telephones operated in parallel are to react to one
apartment button (ED).
Starting up
Start-up can take place using the indoor telephone or the apartment button. Start-up using the apartment button is
useful if you do not have access to the residential unit.
In order to allow the operator to change the call tone of the main bell button, the main bell button must be programmed
as the main button when initial setting takes place. The procedure must be repeated for other bell buttons.
The intercom can be used for start-up with two persons.
An internal call number must be assigned to each indoor telephone for internal communication. When the internal call
number is programmed, the indoor telephone is known to all subscribers connected to the bus line. For example,
subscriber 1 is selected by all other subscribers using the button that has been assigned to subscriber 1 as the internal
call number. Please label the labelling field of all indoor telephones accordingly – see “Operation, comfort indoor
telephone 1 7650“ on page
.
Adjustment protection
The TwinBus power supply unit can be used to give the connected intercom units a setting protection to prevent them
from being changed inadvertently - see page
A negative acknowledge tone when the setting button is pressed is an indication that the adjustment protection facility
has been activated.
Starting up using the indoor telephone
One-man start-up
Connections
a, b
bus terminal
ED, ED
apartment button
Activity
Result
>Press and hold for 5 s
until
flashes
Within one minute, press the button to be
assigned on the door station
RiTTO
RiTTO
acoustic signal for confirmation at
indoor telephone and door station
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