Bellcall Digital Door Entry System
PD-083 Issue 3A
Installation and Operating Manual
Page 41 of 46
Diagram K – BSC4-AD Detail Wiring
2
2
2
2
2
2
1
1
1
1
1
1
B
B
B
B
B
B
A
A
A
A
A
A
-
-
-
-
-
-
-
-
-
-
-
-
+
+
Video
Video
Video
Video
Video
Video
12V
12V
12V
Commn
Commn
12V
Audio
Audio
Audio
Audio
Audio
Audio
Data
Data
Data
Data
Data
Data
+
+
+
+
+
+
+
+
+
-
+
-
-
BSC4-AD 4 Way Audio Distributor
12V Power Supply
Phone 1/
Group 1
Input
Passthru
Phone 3 /
Group 3
Phone 2 /
Group 2
Phone 4 /
Group 4
-
O
rg
O
rg
O
rg
O
rg
W
/O
rg
W
/O
rg
W
/O
rg
W
/O
rg
G
rn
G
rn
G
rn
G
rn
W
/G
rn
W
/G
rn
W
/G
rn
W
/G
rn
B
lu
B
lu
B
lu
B
lu
W
/B
lu
W
/B
lu
W
/B
lu
W
/B
lu
O
rg
O
rg
W
/O
rg
W
/O
rg
G
rn
G
rn
W
/G
rn
W
/G
rn
B
lu
B
lu
W
/B
lu
W
/B
lu
12V
12V
230V
Mains
Power
Supply
12V
N
+
-
L
E
Common Bus
Common Bus
Phone wiring as required
Junction
Box
To
Phone(s)
