25
DS1083-135
The 2Voice video door phone system is easy to install. Only two non-polarised wires are needed to
interconnect all system devices.
It is modular and suitable for making from one- and two-family systems to large systems of various types
(audio, video and mixed) and provide the best solution for all needs.
GENERAL CHARACTERISTICS AND INSTALLATION TYPES USING
ONLY COLUMN POWER SUPPLY UNIT REF. 1083/23
The column power supply ref. 1083/23 can be used to make video door phone systems with up to 32 users
per column (using a distributor or column interface), with up to 12 columns, each of which with up to 2
secondary calling stations. Up to 2 main calling stations and possibly one concierge switchboard may be
present.
The characteristics of the 2Voice video door phone system are shown below,
using ONLY the power
supply unit Ref. 1083/23 in the systems
.
IMPORTANT
The Ref. 1083/20A can be used in systems in which the column power supply unit Ref.
1083/23 is also present. In this case, in the section of the system in which the power supply unit Ref.
1083/20A is used, refer to the booklet provided with the product.
SYSTEM INSTALLATION
STANDARDS AND INTERFERENCE IMMUNITY
All devices must be set up and wired according to rules of best practice and according to national installation
standards. Particular attention must be devoted to power units and transformers: these must be arranged
in suitable electric panels and equipped with appropriately dimensioned protection and circuit breaker
switches.
The installation of the Ref. 1083/23 is possible ONLY in an electrical panel.
All devices
comply with EC Standards with regards to electromagnetic compatibility and electrical safety. Furthermore,
the power supply unit is IMQ and VDE certi
fi
ed.
The system guarantees good noise immunity only if a Urmet cable is used for the bus lines and earth is
connected to the earth system.
In all cases, to improve interference immunity, do not arrange the system wires near 110V, 230V and
400V power wires which generate strong electromagnetic
fi
elds.
The following problems, typical of all video door phone system, the frequency and severity of which cannot
be foreseen, may occur if these rules are not respected:
Data transmission errors between devices with consequent impossibility of making calls.
Poor video quality: loss of details, double picture, etc.
Video interference.
Audio signal interference.
MINIMUM AND MAXIMUM NUMBER OF DEVICES
The minimum con
fi
guration of the 2Voice system comprises: a power supply unit, a calling station and at
least one apartment station.
Maximum number of devices and users
using the column power supply unit Ref. 1083/23
.
Device
Maximum number
Four-user distributor Ref. 1083/55 (column derived from a device /23)
12
Four-user distributor Ref. 1083/55 (column derived from a device /53 or /50)
8 x 12 columns
Power supply unit Ref. 1083/23
14
Column distributors Ref. 1083/53 or column interfaces Ref. 1083/50
12
Door unit interface Ref. 1083/75
1
Calling stations
Numero massimo
Main door phone or video door phone calling stations
2
Secondary door phone or video door phone calling stations
24
Total number of calling stations in the system
26
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