Line from an entrance doorstation
or control unit
HS
+
Commutator
BKM-440
HS
-
LN1-
GND
VI2
+E
L1
N+
LN2-
VI1
LN2+
Ec1
Ec2
+E
GND
LN-
GND
LN+
+E
DA
T
A
VO1
HS/MON
EQUIV
A
B
C
VO2
GND
VO
Ec
GND
+
-
LN
GND
+E
Ec
LC
BVD 406CB
-
Individual
doorstation
VO
VG
LN-
GND
LN+
VI1
+E
DATA
Ec1
Ec2
GND
VI2
VO
VG
VG
-18
+18
V1
FA
LN
VG
V2
FB
LN
VG
V3
FC
LN
VG
V4
FD
LN
VG
GND
LINE
SEL
Ek
VI
Electromechanical
lock
-18
+18
+12
-12
Power supply
BPD18/12-1-1
- 430
Monitor
VIZIT M
C
Additional handset
UKP-9M or similar
Master monitor
·
·
·
Video signals switching
Intercom priority
Individual doorstation activation
Additional camera
12 VDC, 0.15 A max.
Commutator
BK V
-4
82 Ohms resistor should be connected
to VO and VG terminals of the top
commutator
BK-4V
To
commutators
next
BK-4V
To
apartments
next
Figure 4. Monitor VIZIT-M430C (master) with entrance and individual doorstations