
BASIC SYSTEM DIAGRAMS
sec.1a
−−−−
13
DOOR PHONE SYSTEMS
DOOR PHONE - VIDEO DOOR PHONE SYSTEMS: Installation Diagrams
CONNECTION OF SEVERAL DOOR PHONE TO 2 DOOR UNITS
Differentiated calls from door units.
Use the power supply wiht relay Ref. 786/15
SC101-1280A
(C4.008)
(C4.016)
(C4.006)
(C4.007)
(C4.006)
(C4.007)
(C4.008)
(C4.016)
L
+
2
-
1A
1
U1
G/T~12
~0
~12
G/T
~0
U2
6 3 9
~~
SN252-J+-C2C1 4 SN11127 ~0PSPS2 8~
L
+
2
-
1A
1
U1
G/T ~12
~0
~12
G/T
~0
U2
6
1
9
2
10
CA
G/T
~0
~12
~0
~12U2
U1
G/T
U3
U4
6
1
9
2
10
CA
G/T
~0
~12
~0
~12 U2
U1
G/T
U3
U4
TO THE FOLLOWING
MODULE
MAIN ~
TO THE FOLLOWING DOOR PHONES
TO THE FOLLOWING
MODULE
POWER SUPPLY
FOR DOOR
PHONE SYSTEM
Lock
Release
Lock
Release
Name tag
lighting
Name tag
lighting
ELECTRIC
LOCK
ELECTRIC
LOCK
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