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4.4 CONFIGURACIÓN DE LOS PUENTES DE LA TELECÁMARA.
CONFIGURATION OF CAMERA BRIDGES.
Configuration of the jumpers for installations with Cat. 5 (100 ohm) twisted pair cable.
4.5 ESQUEMA PARA UN BLOQUE DE VIVIENDAS CON UN ACCESO EN INSTALACIÓN
VÍDEO.
DIAGRAM FOR A BLOCK OF DWELLINGS WITH ONE ACCESS IN VIDEO
INSTALLATION.
Configuration of the jumpers for installations with 75 ohm coaxial cable.
In all cases, the distributor will only receive power supply when
one of the monitors (or street panels) connected to it is operating.
All distributors have a resistance at the end of the line that will
be broken if the distributor is not the last one along its distribution
branch; that is to say, the video cable enters the distributor and
exits towards another distributor or monitor from its direct output
(the direct distributor output should not be mistaken with its
derivating outputs).
If the installation is done with UTP cat.5 cable, have followed the
remarks made for twisted pair.
Telecameras have three bridges that will be configured according
to whether coaxial cable (75 ohms) or cat. 5 twisted pair cable
(100 ohms) is installed for transmitting the video signal. By
default, the bridges are set in the coaxial cable (75 ohms)
position in the factory.
The installation shown uses a coaxial cable for the video signal.
The configuration of the bridges for camera and monitor wall
mounts will be changed if the installation uses cat. 5 twisted pair
cable for transmitting the video signal. Likewise, ref. M1934
distributors will also be changed for ref. M1924 distributors.
The power is supplied to the system by means of the cables
joining terminal blocks 1 and 2 of the power supply with terminal
blocks 1P and 2P of the street panel audio control group. Each
distributor receives power supply from terminal block 14 of the
monitors connected to its derivating outputs. Remember terminals
14 of distributors must not be connected to each other.
The communications bus is formed by the three cables leaving
from terminal blocks 1M, 2M and 3M of the street panel audio
control group, which will be connected, respectively, to terminal
blocks 1M, 2M and 3M of the telephones in the dwellings.
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