3 .
Installation manual
Elements of the complete digital entry phone system OPTIMA 255V2:
§
outdoor panel including whole necessary electronics (it is a central unit of the system),
§
power supply – to supply the panel use a power supply of output voltage within the range 12-
15VAC and current 2A (min 20VA),
§
handsets - with the digital entry phone system it is recommended to use Wekta TK7-OP, TK7-OP2
hand sets or equivalent,
§
electric lock – it is recommended to use electric locks for voltage 12V AC/DC, of consumption max.
0.7A. Electric lock opening time to be set by software,
§
door opening button (option) - any normally open (NO) button (e.g. door bell)
3.1
Installation
Panel should be mounted on the wall of a building, alternatively on a post in order to minimize adverse
weather conditions. It is advisable to install on height the allows using by children and handicapped.
Panel supply
Use two-conductor cable of cross-section >1mm
2
to connect the panel to the power supply. Length of the
supply cable should not exceed the value given in the below table when using the AC20 power supply
(14VAC, 20VA, available from ELFON). Should length of the supply cables be longer, it is necessary to
increase the panel voltage supply remembering not to exceed 15 VAC. For example, when using the supply
voltage 15 VAC, it is possible to extent the distance to 70 m using the cable AWG17.
AWG
Cross-section [mm2]
Maximum distance [m]
17
1,04
10
16
1,31
15
15
1,65
20
14
2,08
30
13
2,62
50
Table 2: Length of supply cables with 14 VAC supply
More information on the digital panel connections together with additional modules and configuration of
the supply is given in addendum A
.
8