Pag. 53
Technical
General diagram for basic video door phone installations in condominiums with one main entrance and several
interior blocks with one entrance each.
There is no limit on the number of blocks, however, the greater the number of blocks the more complicated the
installation, so it is not reccomended for installations of more than three interior blocks.
For more blocks we recomend the use of digital systems (MDS).
BASIC FUNCTION
This system works as if it were formed of various independent basic video door phone installations with two entrances,
(see diagrams E 2.1 ), but with the peculiarity that the main entrance panel shares the same amplifier and telecamera.
Therefore an automatic switcher is installed in every block in such a way that when a call is made from the main entrance,
the switcher selects this main entrance. If the call is made from the block panel, then the switcher selects the block
panel.
OBSERVATIONS
As the two entrance installations with an automatic switcher have an "activated" position, in which the time allowed
for conversation is limited to 90 seconds (or until a call from another panel is made), and another "at rest" in which the
conversation is only ended if there is a call from the other panel, the cables from the main entrance are connected to
the "at rest" terminals and those of the block to the "activated" terminals so as to give priority of conversation length
to calls made from the main entrance panel.
The main entrance panels must have as many buttons as the total of the interior block panels.
MATERIAL NEEDED
In the dwellings and floors
M1, M2, ...Mn CityMax Export Monitor Ref.: 8023 (do not forget the connector Ref. 8033)
D2.1, ..., D2.n Video Distributor Ref.: 2448 (assuming two monitors per floor)
En each internal block
A3 Video Power Supply Ref.: 88302
A7 Distributor Power supply Ref.: 88231
A6 Video Switcher Ref.: 8812
D2.1 Video Distributor Ref.: 2448 (except in the last block)
P Outdoor Panels (neccessary combination. Do not forget telecamera Ref. 8028)
F Electric lock Ref.: 2911 (or other type. See catalogue)
In the main entrance
PG1 Outdoor Panels (to call block 1)
PG2 Outdoor Panels (to call block 2)
...
PGn Outdoor Panels (to call block n)
The panel in the main entrance must have as many monitors as the total of all the buttons in the internal blocks. One
of the panels must include the common amplifier and telecamera.
F1 Electric lock Ref.: 2911 (for other types consult catalogue.)
E 2.5 VIDEO PHONE SYSTEM
CONDOMINIUM WITH SEVERAL BLOCKS
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