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4.2 ESQUEMA DE CONEXIONES ENTRE PLACAS CALLE EN INSTALACIÓN AUDIO.
DIAGRAM FOR CONNECTIONS BETWEEN STREET PANELS IN AUDIO INSTALLATION.
BLOCK No. 1
INTERNAL TELEPHONE BUS
MAIN
INTERNAL
ACCESS
EXTERNAL ACCESS No.1
BLOCK No. 2
F1330
INTERNAL
ACCESS
The power for the system is supplied via the cables joining terminal
blocks 1 and 2 of the power supply with terminal blocks 1P and 2P
of the street panel audio control group.
The communications bus is formed by the three cables leaving
from terminal blocks 1M, 2M and 3M of the street panel audio
control group, which will be connected, respectively, to terminal
blocks 1M, 2M and 3M of the telephones in the dwellings.
The connection between the street panel and the door opener is
executed through two cables (NO bushing insulators and – audio
control unit). Bushing insulators +12 and C are to be connected
between each other with a cable. An external push button can also
be connected to bushing insulators C and NO of the audio control
unit to activate the door opener. The activation time of the door
opener when the external push button is activated is not in timer
mode; that is to say, the door opener can only be activated when
the external push button is held down.
Telephones have an auxiliary potential free pushbutton to activate
functions other than those of the installation. The contacts of this
pushbutton are terminal blocks 12 and 13 of the telephone.
INTERNAL TELEPHONE BUS
MAIN
As can be seen in the diagram, the same power supply can power
more than one street panel. The cables leaving terminal blocks
1 of power supplies must never be connected to each other.
However, the cables leaving terminal blocks 2 of power
supplies must be connected to each other as they are the
ground for the system.
SECONDARY INTERNAL
ACCESS
F1330
EXTERNAL ACCESS No. 2
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