Urmet 1083 Notice page 12

ADDITIONAL FUNCTIONS
STAIRCASE LIGHTS FUNCTION
An apartment station button can be programmed to switch the staircase lights on by means of a special
decoder.
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.
All devices comply with EC Standards with regards to electromagnetic compatibility and electrical safety.
Furthermore, the power supply unit is IMQ and VDE certifi ed.
Satisfactory interference immunity can only be guaranteed if Urmet is used for bus line wiring.
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 confi guration of the 2Voice system comprises: a power supply unit 1083/20A, a calling station
and at least one apartment station.
The maximum number of devices and users is:
Device
4-user distributor Ref. 1083/55
Power supply unit Ref. 1083/20A
Column interface Ref. 1083/50
Door unit interface Ref. 1083/75
Calling stations
Main door phone or video door phone calling stations
Secondary door phone or video door phone calling stations
Total number of calling stations in the system
Apartment stations
Number of users (apartments) per column
Number of apartment stations in parallel (in the same apartment)
Total number of apartment station per column (apartment stations in parallel
are included in the count)
Total number of apartment stations connected in in-out mode per column (*)
12
All manuals and user guides at all-guides.com
Maximum number
32 x 32 columns
34
32
1
Maximum number
4
64
68
Maximum number
127
4
128
32
DS1083-029E