Videotec TW Serie - Manual (Page 8)

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5 Preparing the
product for use
h Any change that is not expressly
approved by the manufacturer
will invalidate the guarantee.
5.1 Safety precautions
before use
g In the 115/230Vac powered configuration
it is necessary to insert a 1 0 unipolar
main switch (open contact distance
d>3mm) upstream on the power
line. This switch should be used to
disconnect the power supply before
carrying out any maintenance operation
or before opening the housing.
5.2 Contents and unpacking
When the product is delivered, make sure that
the package is intact and that there are no
signs that it has been dropped or scratched.
If there are obvious signs of damage,
contact the supplier immediately.
Keep the packaging in case you need
to send the product for repairs.
Check the contents to make sure they correspond
with the list of materials as below:
• Transmitter or receiver
• Instructions manual
5.3 Safely disposing of
packaging material
The packaging material can all be recycled.
The installer technician will be responsible for
separating the material for disposal, and in
any case for compliance with the legislation
in force where the device is to be used.
Bear in mind that if the material has to be returned
due to a fault, using the original packaging
for its transport is strongly recommended.
4 Identification
4.1 Product description
and type designation
The video transmission system over twisted
pair consists in a transmitter and a receiver. The
transmitter converts the composite video signal
from a camera and transmit it over twisted pair, then
the receiver converts again the signal in composite
video. Both devices can be adjusted allowing
amplification and equalisation of the signal then
it is possible to cover long distances (up to 1500m
for a colour video signal with UTP Cat. 5e cable).
A wide range of models is available satisfying
any installation requirements. The transmitter is
normally supplied in a IP56 enclosure for outdoor
installation: available in two versions, 12Vdc/24Vac
(TWT2) and 230Vac, 50Hz (TWT2A). A mini version
(TWM2) is also available, fed in low voltage, for
installation in the outdoor camera housing. The
receivers are normally supplied in a IP56 enclosure
for outdoor installation: low voltage version (TWRB2)
12Vdc/24Vac and high voltage (TWRB2A) 230Vac,
50Hz. The receiver is also available on Europe card
(TWRR2), fed in low voltage, for rack installation.
4.2 Product markings
h The twisted pair transmitters and
receivers have two labels that
comply with CE marking.
The first label contains:
• Model identification code (Extended 3/9 Bar-code)
• Power supply voltage (Volts)*
• Consumption (Watts)*
The second label shows the model serial
number (Extended 3/9 Bar-code)
Before commencing installation, make sure
the transmitter’s power supply specifications
correspond to those required. The use of
inappropriate equipment may subject personnel
and the system itself to serious safety hazards.
* With the passive transmitter (TWP), the power supply
and the relevant marking data are not provided.