ETL Esse-ti HELPY 2W-V, Руководство пользователя

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Page 8 CONNECTING THE EMERGENCY CALL BUTTONS
Passive speak
er
unit pushbuttons
In case of passive speak er units without built-in pushbutton it is possible to
use voltage free contact pushbuttons (NO or NC).

Connect, following the diagram shown below, the external pushbutton.
2W speak
er
unit pushbuttons
It is possible to connect external pushbuttons (voltage free contact pushbuttons or
powered pushbuttons) to 2W speak
er units without built-in pushbutton.

Connect, following one of the diagrams shown below, the external
pushbutton to the 2W speak er unit.