
BASIC SYSTEM DIAGRAMS
sec.1a
−−−−
61
DOOR PHONE SYSTEMS
DOOR PHONE - VIDEO DOOR PHONE SYSTEMS: Installation Diagrams
CONNECTION OF TWO INTERCOM DOOR PHONES WITH POSSIBILITY OF
ANSWERING CALLS FROM ONE SECONDARY DOOR UNIT EXTENSION OF AN
ELECTRICAL DOOR UNIT SYSTEM
Parallel calls from outdoor station
Differentiated calls
SC101-0735D
-/~
+/~
-/~
+/~
(VX.006)
(VX.021)
(VX.006)
(VX.021)
(C4.014)
(C4.006)
(C4.014)
L
+
2
-
1A
1
U1
G/T ~12
~0
~12
G/T
~0
POWER SUPPLY
MAIN~
ELECTRIC
LOCK
Lock Release
Name tag
lighting
FROM RISING
COLUMN
call
RELAY BOX
(1)
RELAY BOX
(2)
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