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FACTORES DE CORRECCIÓN PARA INSTALACIONES DE VIDEO CON MÁS DE
CORRECTION FACTORS FOR VIDEO INSTALLATIONS WITH MORE THAN ONE
NUM. TELEPHONES PER DWELLING
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6. CONFIGURACIÓN DE LAS PLACAS CALLE CON VISOR.
CONFIGURATION OF STREET PANELS WITH VIEWER.
6.1 PLACAS CALLE CON VISOR: INTRODUCCIÓN.
STREET PANELS WITH VIEWER: INTRODUCTION.
How to obtain the maximum length in installations in which there is
more than one telephone/monitor per dweling is indicated in the
following table, with said table being based on the previous simplified
table for video installations.
UN MONITOR POR VIVIENDA
MONITOR PER DWELING
CORRECTION FACTOR
For example, the following steps will be followed for an installation
with 1 monitor and 2 telephones per dwelling:
• The calculation will be performed as if there were only
• The Correction Factor will be applied: Once the Lmax value
• The result of this division is the Lmax value to be used in order
Street panels with viewer can be configured as: External Access
(PE), Main Internal Access (PIP) and Secondary Internal Access
(PIS).
As already explained above, there are two types of street panel
according to the way they are built: one with individual pushbuttons
per dwelling (modular) and the other with a telephone number pad.
In the case of street panels with viewer and telephone number pad,
the green indicator lights up whenever there is audio communication
between the street panel and a dwelling.
The following table shows the combinations of street panel type,
type of access, programming method and types of call that can be
configured in street panels with viewer.
A power supply beside each street panel (please
see Note 1 in the DIGITAL VIDEO INSTALLATIONS
Table).
one monitor per dwelling. Therefore, the DIGITAL VIDEO
INSTALLATIONS table will be used to obtain the first maximum
length value (Lmax), in accordance with the cable to be installed
and the number of dwellings included in the installation.
has been obtained for one monitor per dwelling, this value must
be corrected by applying the factor indicated in the CORRECTION
FACTORS FOR VIDEO INSTALLATIONS table for 1 monitor and
2 telephones per dwelling; in this case: Lmax/2.
to determine if the cable cross section that is going to be used
is appropriate, or to calculate the number of additional power
supplies to be installed.
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