Vimar 21553.2 Instruction Manual page 36

Video door entry system
Note: In the second mode of operation, it is necessary to set up an additional power supply 6923 for each added
video door entry unit (after the first two) in a call group so as to guarantee the correct current absorption from the
main power supply.
Example of installation:
NT
PRI
Art. 6923
- +U
AL1 - Power Supply Art. 6923
AL2 - Power Supply Art. 6922
M - Pillar
NT - Network
VV - Multimedia video touch screen 21553.2
Figure 22 - Video door entry units with simultaneous video calls
34
VV
AL1
21553.1
VV
21553.1
VV
21553.1
1 2
M
+12
Art. 732H/100
CH
1
2
E+
E-
A
FP
B
C M
Art. 732H/100
+12
CH
1
2
E+
E-
A
FP
B
C
M
Art. 732H/100
+12
CH
1
2
Cavo
E+
E-
Art. 732H/100
A
FP
B
C M
Power supply
All'Alimentatore
AL2
1 2
Art. 6922