Bell System bellview - Page 56

Up to 10 telephones
Diagram 6c : Telephone Wiring for a 2 Door 11 - 60 Way System
Flats
Up to 10 telephones
Up to 10 phones each
*1
Junction
R O T Z V L
Call lines
I3 I2 I1 I10I11I12
PSU Control
MS
from Push Buttons
+
-
Box
From
Cabinet
PSU138B
PHONE connections on the
© 1997 Bell System (Telephones) Ltd.
Bell View Video System
Notes
*1 Use a junction box
to split into groups
of 10 phones.
Maximum of 2m to
Power supply.
*2 The Co-ax cable
can be connected
to either terminal
block.
*2
VDC6
Video Distributor
+
-
+
-
+
-
MS S S MM
M M MSSS +++
- - -
-
+
M
S
IN
OUT
OUT
OUT
OUT
OUT
OUT
+
-
M
S
THRU
75R Co-ax
75R Co-ax
CAM
2 DOOR
BV 11-60
Switching unit
Video
Phone
MSSM
-
+
L
V
Z
T
O
R
I
CAM
Video
Phone
MSSM
-
+
L
V
Z
T
O
R
I
CAM
1st
*2
2nd
*2
Flats
Video
Phone
MSSM
-
+
L
V
Z
T
O
R
I
CAM
*2
Video
Phone
MSSM
-
+
L
V
Z
T
O
R
I
CAM
1st
2nd
*2
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