INSTRUCTIONS FOR URMET DOMUS DEVICE INTERCHANGEABILITY
BASIC SYSTEM DIAGRAMS
sec.1f
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9
DOOR PHONE - VIDEO DOOR PHONE SYSTEMS: Installation Diagrams
REPLACING VIDEO DOOR PHONE POWER UNIT Ref. 7073, Ref. 7073/1
AND Ref. 7073/2 WITH Ref. 789/1A
REPLACING VIDEO DOOR PHONE POWER UNIT Ref. 7073, Ref. 7073/1 AND Ref. 7073/2 WITH
Ref. 789/1A
The Ref. 789/1 A power unit replace the previous R
ef.
7073,
R
ef.
7073/1
and
R
ef.
7073/2
power units in all systems except for:
1) Systems with Vidicon camera: Mod. 789 power units are not provided with + LA, -LA outputs for powering lamps.
2) Continuously powered systems.
3) Systems with more than 20 video door phones monitors in stand-by: in this case use a 6 Vdc power unit providing suitable output current
considering that the average consumption of a video door phone in stand-by is 60 mAcc.
4) Systems with simultaneous operation of 2 or more video door phones: in this case, power each supplementary video door phone using local
power unit Ref. 789/2.
5) The Ref. 789/1 video power unit (110-230V) consists of two units connected using the specifi c wire and plugs (C).
The power unit Ref. is 789/101 (110-230V).
The electronic unit Ref. is 789/102.
Jumpers ~0, ~A and ~12, ~B are pre-fi tted.
+
POWER SUPPLY
Ref.789/1
(110/230V)
VIDEO
POWER SUPPLY
Ref.7073 OR
7073/1
VIDEO
POWER SUPPLY
Ref.7073/2
CALL
GENERATOR
Ref.787/1
VIDEO
POWER SUPPLY
Ref.7073/1
MAINS ~
MAINS ~
MAINS ~
MAINS ~
