Bell System bell free, Installation & Operation Manual

Page: 36 / 48

BF Apartment Station Digital Entry System
PD
–166 Issue 1
Installation and Operating Manual Page 36 of 48
Diagram E – BSC4 PCB Detail
2
8
V
G
e
n
e
ra
to
r
Input
Power 1 Power 2 Power 3 Power 4
Passthru
Status
Test
Test
Phone 1
Phone 1 Phone 2 Phone 3 Phone 4
Test
Phone 2
Test
Phone 3
Test
Phone 4
Audio on Select 1 Select 2 Select 3 Select 4
OFF
ON
Video
Termination
4 3 2 1 0
Video
Gain
Label BSC4
Version No
Build No
1
Prog
Power
Supply
SW7
Off-On
SW6
1
2
3
4
5
6
7
8
+1
+2
+50
+100
+200
+400
+800
+1600
Set Phone Address
Then Add values below to get address
0 = AD Mode
1 = 1, 2, 3, 4
2 = 5, 6, 7, 8
: : : : : :
F = 57,58,59,60
2 2
2 2 2 2
1 1
1 1 1 1
B B
B B B B
A A
A A A A
– –
– –
– – – –
– –
– – – –
+ +
V
id
e
o
V
id
e
o
V
id
e
o
V
id
e
o
V
id
e
o
V
id
e
o
12V 12V
A
u
d
io
A
u
d
io
A
u
d
io
A
u
d
io
A
u
d
io
A
u
d
io
D
a
ta
D
a
ta
D
a
ta
D
a
ta
D
a
ta
D
a
ta
2
8
V
2
8
V
2
8
V
2
8
V
C
o
m
m
n
C
o
m
m
n
+ +
+ + + +
+ + + +
– –