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DOOR PHONE - VIDEO DOOR PHONE SYSTEMS: Installation - Urmet

DOOR PHONE - VIDEO DOOR PHONE SYSTEMS: Installation - Urmet

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<strong>DOOR</strong> <strong>PHONE</strong> <strong>SYSTEMS</strong><br />

BASIC SYSTEM DIAGRAMS<br />

SV102-3294<br />

SEVERAL RISER<br />

ONE RISER<br />

CONNECTION WITH DISTRIBUTION AT RISER BEGINNING<br />

In each riser the cable goes in and<br />

comes out from each video door phone<br />

CONNECTION WITH DISTRIBUTION<br />

TO THE FLOORS<br />

SERIES CONNECTION<br />

The cable goes in and<br />

mes out from each video door phone<br />

EXAMPLES OF COAXIAL CABLE CONNECTION<br />

Power supply<br />

TC Ref.789/5B<br />

TC<br />

(Max. 10<br />

distributors) Video power unit Ref. 789/5B can power up to 10<br />

video distributors Ref. 1794/4A if Atlantico, or Scaitel<br />

video door phones are not connected in parallel. Use<br />

two additional wires in the system and other power<br />

units Ref. 789/2 (one for each next group of 20) to<br />

install more distributors.<br />

With distributor in which the U5 output is used it is<br />

Note: if on the video door phone terminals V4 and<br />

necessary to remove the 75 Ohm resistance<br />

V5 there is not the coaxial cable connect the<br />

(mounted raised from the PCB) .<br />

75Ω 1/4W resistance.<br />

50 −−−− sec.1d <strong>DOOR</strong> <strong>PHONE</strong> - <strong>VIDEO</strong> <strong>DOOR</strong> <strong>PHONE</strong> <strong>SYSTEMS</strong>: <strong>Installation</strong> Diagrams<br />

TC<br />

Power supply<br />

Ref.789/5B<br />

(Max. 10<br />

distributors)

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