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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 />

EXAMPLE OF SIGNAL A, SIGNAL B AND POWER (R1, R2) DISTRIBUTION ON<br />

SEVERAL COLUMNS<br />

TO THE<br />

FOLLOWING<br />

COLUMN<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

2 x 82Ohm 1/4W<br />

AB R2 R1<br />

Output<br />

II<br />

I<br />

AB R2 R1<br />

AB R2 R1<br />

II<br />

I<br />

III<br />

<strong>VIDEO</strong><br />

DISTRIBUTOR<br />

Ref.955/40<br />

IV<br />

Input<br />

Output<br />

III<br />

<strong>VIDEO</strong><br />

DISTRIBUTOR<br />

Ref.955/40<br />

IV<br />

Input<br />

AB R2 R1<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

A<br />

B<br />

2 x 82Ohm 1/4W<br />

AB R1 R2<br />

Output<br />

R1<br />

R2<br />

B<br />

A<br />

I II<br />

955/40<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

III IV<br />

R1<br />

R2<br />

AB R2R1<br />

TC<br />

Input<br />

R2 R1<br />

SV102-2978C<br />

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

A<br />

B<br />

<strong>VIDEO</strong> OUT<strong>DOOR</strong><br />

<strong>VIDEO</strong><br />

POWER SUPPLY<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

2 x 82Ohm 1/4W<br />

R2 R1<br />

Output<br />

II<br />

I<br />

R2 R1<br />

R2 R1<br />

II<br />

I<br />

R1 R2<br />

AB<br />

III<br />

IV<br />

Input<br />

AB<br />

AB<br />

III<br />

IV<br />

AB<br />

R1<br />

R2<br />

<strong>VIDEO</strong><br />

DISTRIBUTOR<br />

Ref.955/40<br />

Output<br />

Input<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

R1<br />

R2<br />

<strong>VIDEO</strong><br />

DISTRIBUTOR<br />

Ref.955/40<br />

The video power unit Ref. 789/5B can power up to 8 video distributors Ref. 955/40 if Atlantico, or<br />

Scaitel monitors are not installed in parallel in the system.<br />

The closing resistors must not be present on the video door phone brackets.<br />

A<br />

B<br />

R1<br />

R2<br />

A<br />

B<br />

TO THE<br />

FOLLOWING<br />

COLUMN

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