Conditions Of Operation - Laskomex CD-2502 Series Installation, Service And Programming Manual

NOTE!
Entry phone CD-2502 is available in two versions: audio and video. In both versions
the same electronic cassette EC-2502 and power supply adapters are used, in both
versions parameters are set in the same way. The two versions differ mainly with
the types of used panels, additional elements in video version (panels in video ver-
sion, switches, distributors and monitors) and the method of performance of power
system. Both versions of entry system are described in the instruction. In case of
installation and activation of audio version one should disregard recommendations
referring to video version.
In entry phone CD-2502 one type of electronic cassette is used - EC-2502. The use
of the device (main or subordinate entrance) is defined by program.
In the description abbreviations are used — exchange configured for the service of
the main entrance is designated EC-2502/H and exchange for the service of subor-
dinate entrance EC-2502/U. Cassettes are default configured as EC-2502/U.
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Conditions of operation

Prior to the installation and use of an entry phone one should get acquainted
with the installation and operation instruction.
Wiring system should be performed according to standard PN-IEC-60364-1 by
an authorized person. It should be made in such a way as to avoid the risk of
lightning.
Monitor should be mounted in a place that is easily accessible for users at
a height of min. 1.5 m, in such a way as to eliminate the danger for the
users and accidental jostling. Monitor should be installed at a distance of min.
1.5 m from the sources of strong electromagnetic interferences — transformer
feeders, magnets, metal sewage and gas pipes because it can result in picture
distortion.
It is forbidden to connect the entry phone elements to installations other than
made according to the recommendation of an entry phone producer.
Monitor, uniphone and electronic cassette should not be exposed to high tem-
perature or humidity. These elements should not be installed in bathrooms or
close to heaters.
Openings in a monitor and uniphone should not be covered because it can result
in their improper operation.
No metal objects can be put into the openings in uniphones or monitors because
this can cause electric shock or fire.
El. supply from external supply sources should not be connected to uniphone
terminals because it can cause its damage or fire.
1 CONDITIONS OF OPERATION
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