27
DS1083-135
ALLOWED CABLES
The 2VOICE bus is NON polarized. The cable (Ref.1083/92 or Ref.1083/94) has been designed to ensure
the maximum distance and dimensions of the system. Because this cable is twisted, a good noise immunity
is ensured.
For system max. extensions and types when different kinds of cables are used, see the next
paragraphs.
WARNING ! If multi-pole cables are used, it is absolutely forbidden to short-circuit several conductors
in order to increase the cable section.
For long distance branches, it is suggested to reduce to the minimum joint points between cables.
For joints, use devices ensuring a good and lasting connection between cables, protecting the
joint against humidity and bad weather.
Wires with cross-section area of 0.5 mm
2
or larger must comply with IEC 60332-1-2; wires with
cross section area smaller than 0.5 mm
2
must comply with IEC 60332-2-2.
The end of a stranded conductor must not be consolidated with mild soldering in the points in
which the conductor is subject to contact pressure.
MAX. DISTANCES AND EXTENSIONS
VIDEO DOOR PHONE SYSTEMS
DOOR PHONE RISERS CONNECTION
This chapter shows the different ways of connecting an all door phone riser regardless of whether it is
derived from a column power supply unit, a column distributor or a column interface.
The following indications are valid for audio only systems; these distances can not be applied if
even one video device is present (video door entrance panel or video door phone).
2
1
3
16
Maximum 16 devices in video
door systems with column
derived from 1083/23
Maximum 10 video
distributors 1083/55
Maximum 5 video
distributors 1083/55
2
1
3
16
Maximum 16 devices in video
door systems with column
derived from 1083/50 or / 53
Max. 4 apartment stations
connected in-out mode
Max. 4 apartment stations
connected in-out mode
