Videotec RDDR433, Руководство по эксплуатации

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Pag. 5 RDDR/RDDT9823/2
Power supplies
The transmitter and receiver operate from a voltage of 12VDC. This can be provided by an stabilized mains adapter
capable of supplying a continuos current of at least 0.3A for the transmitter and receiver must be protected by a 1A
slow-blow fuse.
Mobile use
If, during mobile use, no mains voltage is available, the transmitter and receiver can be operated from a 12V car
battery.
Mounting
An easily mounted, weatherproof case permits installation anywhere, even outdoors on building walls or on wooden
masts.
Operating frequencies
Data transmission is performed on a frequency set in the range 433,875- 434,650 MHz,according to the internal dip-
switch setup (table page 7). 32 indipendent link frequencies are available. Transmitter and receiver must be set at the
same code.
Please note that the components of the radio link system cannot be used as relay stations.
INSTALLATION
The installation must be carried out only by qualified technical staff
.
The following procedures must be carried out with power supply off, if not otherwise specified.
Prerequisites
In order to obtain the best performances, the system must be installed such that there is a free line of sight between
the transmitter and receiver, i.e. there must be no static (high-tension lines, trees, walls, buildings, etc.) or dynamic
(trams, railways, trucks, etc.) obstacles between the two units.