2N Helios Vario, Руководство по установке

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2N TELEKOMUNIKACE a.s., www.2n.cz
®
1.
2.
3.
4. Here connect the current call indicator (LED).
Write-protection (if the jumper is mounted).
do not connect
Microphone sensitivity reduction (mount the jumper for noisy environments).
Camera setting – connector (18): refer to the instructions enclosed to the camera unit.
Parallel Connection
Parallel connection of multiple telephone sets was commonly used in the era in which
telephone lines were rare, It carries unnecessary risks to connect the unit in this way.
It is in no case recommended to connect
in parallel to another telephone 2N Helios
®
or another door communicator. It is neither admissible to use equipment 2N Helios
®
that switches one line between two or more sets (intelligent double branch, etc.).
Typical Electric Lock Connection
2N Helios
®
contains a solid-state switch equipped with V-MOS transistors, which is
able to switch both ac and dc regardless of polarity. Make sure that the current and
voltage values do not exceed limits (refer to the Technical Data) and that the technical
parameters of the lock and power supply are compatible.
Figure: Lock Connection
If you do not have an electric lock and want to have one, you should select a 12 V lock,
this being the most common type. Connect the lock according to the figure, which
shows the button backlight supply too (see later).
Dc-supplied lock: Practically all locks can be dc and ac supplied. The ac supply is more
advantageous because the lock buzzes, which is the clearest signalling method
Warning
Never switch 230 or 120 V mains voltage directly!!!