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CARACTERÍSTICAS TÉCNICAS.
EJEMPLO DE DISTRIBUCIÓN DE SEÑAL DE VÍDEO CON CABLE COAXIAL.
TECHNICAL CHARACTERISTICS.
EXAMPLE OF VIDEO SIGNAL DISTRIBUTION WITH COAXIAL CABLE.
•
W.
Video distributor with 4 outputs for 75 W coaxial
cable.
•
Power supply voltage: from 10Vdc to 17Vdc.
•
Maximum current consumption: 25mA.
•
Input:
W.
Impedance: 75 W.
Video signal: 1Vpp.
•
Output branches:
W
Impedance: 75 W.
Video signal: 1Vpp.
GROUND (OPTIONAL)
POWER SUPPLY (+)
DIRECT OUTPUT
4 BRANCHES
INPUT
FIGURE 1. Distributor connection.
•
•
FIGURE 2. Example of video signal distribution with coaxial cable, in an installation with colour monitors ref. M1720D.
•
• This video distributor is for exclusive use in
GUINAZ video entryphone installations. It will be
installed as specified in this guide, applying
enforced regulation.
• Internal handling of this product will only be
performed by specialised personnel and always
with the equipment disconnected from the mains.
• This device is designed to be installed inside
buildings.
M1720D
Do no shut-off the resistance
M1934
M1720D
M1720D
Shut-off the
resistance
M1934
POWER SUPPLY CABLE
COAXIAL CABLE (75 ohm)
From the camera group G1820D
ALIMENTACIÓN DE LOS
DISTRIBUIDORES.
DISTRIBUTOR POWER SUPPLY.
M1720D
To power the distributor, its power supply terminal
block (identified as 14 DIG./10 ANALOG.) will be
connected to the distributor power supply terminal
block of each monitor connected to the branches of
the distributor. This power supply terminal block is
number 10 in analogue monitors and number 14 in
digital monitors. In general, it will not be necessary
to connect any cable to terminal block 2/5 (GROUND)
M1720D
of the distributor, although it is recommended this
terminal block is connected as indicated in figure 3
for long distances.
M1720D
CONFIGURACIÓN RESISTENCIA
DE TERMINACIÓN DE LÍNEA DE
VÍDEO.
CONFIGURATION OF THE END
RESISTANCE FOR THE VIDEO
LINE.
W
W
W
The distributor comes with a 75 W resistance (R
75 W, FIGURE 1) from the factory as the end of the
video line when the distributor is the last one along
its distribution branch, that is to say, there is only
one coaxial cable connected to the distributor
input.
When the distributor is not the last one along its
distribution branch, that is to say, there is one
coaxial cable connected to the input and another
to the direct output, the 75 W resistance MUST BE
CUT (see diagram in FIGURE 2).
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