Technical characteristics
Type of system.
The CCTV module 01964 (to be installed on monitor 20550) can be used with any type of video camera com-
patible with the CVBS video signal (with output signal 1Vpp on 75Ω); audio inputs can be used for the levels
of amplification of the microphones fitted on the devices, such as the recess-mounted video camera with two
modules 20565 and 14565 and therefore using other types of audio sources does not assure the correct level of
amplification for the voice channel.
The CCTV interface allows input of 2 independent audio/video channels to which up to two video cameras with
audio input can be directly connected.
In the case of a greater number of video sources it is necessary to use a video multiplexer for CCTV systems to
connect to one of the two main audio/video inputs of the module 01964.
The power supply of the CCTV interface 01964 is supplied through any power supply with output 18-24 Vdc
(minimum 6 VA), while the power supply of the video cameras must be supplied separately according to their
characteristics.
As regards the type of cables to use for the connection between the components of the system, it is recommen-
ded to use the 75Ω coaxial cable for the composite video signals at the input to the module 01964 and 0.5 mm2
cables for audio signals and for the power supply.
The CCTV system.
Using the module 01964 enables creating a simple and flexible video surveillance and environmental listening
system, able to satisfy the video control and environmental listening requirements of residential and household
sectors.
The applications concern the audio and video control of environments of the home such as, for instance, “baby-
watching”, video control of rooms and garden, private car parks, etc.
Using only the CCTV interface and the monitor 20550 provides audio/video control of two independent rooms
without the aid of additional accessories (multiplexer, video matrices, etc.); viewing and listening to these rooms
can be done directly or cyclically and with user programmable times.
If it is necessary to control three or more rooms or record the audio/video signals, it will be enough to insert an
audio/video multiplexer with the output connected at the input to one of the two channels of the module 01964
and a video recording appliance (VCR) to be connected to the multiplexer.
WARNING: In the case of environmental video recording, see the paragraph on “RULES OF INSTALLATION AND
REGULATORY COMPLIANCE” and for greater details the specific regulations for local video surveillance.
