INSTALLATION
...continued from previous page
2)
The power supply is connected to a point somewhere between the door panel and
the monitor:
Notes:
-
Pay careful attention to the cross section of the ground wire.
3)
The system is powered from the monitor:
Notes:
-
Pay careful attention to the cross section of the ground wire.
Recommendation:
Out of these three possible configurations, the most suitable is where the system is powered from
the door panel, as the first example shows.
IMPORTANT:
We must be sure that in the apartments there are no relays, call repeaters or parallel telephones
left over from the previous installation, otherwise serious damage could be caused to the new
system or even to the apartment (they could burn).
d2
d1
SECTIONS
Terminal
+, – / Cv,Cv
V+, V-, A/D
d1
SECTIONS
Terminal
+, – / Cv,Cv
V+, V-, A/D
d1max = 100m
d2max = 100m
d1+d2< 150m
Door Panel-
Door Panel-Cv
Power Supply
50m
50m
100m
1mm²
0.5mm²
1mm²
0.25mm² 0.25mm²
d2
d1max = 50m
d2max = 40m
Power Supply-
Door Panel-Cv
Monitor
50m
10m
40m
1mm²
0.25mm² 1mm²
Power Supply-
-Monitor
150m
50m
100m
2.5mm²
0.25mm² 0.5mm²
0.25mm² 0.25mm²
Door Panel-
Monitor
150m
10m
50m
2.5mm²
0.25mm² 1mm²
0.25mm² 0.25mm²
55