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Notes
11
Directions for the operation of the telephone system
This ISDN telephone system has been designed for use at ISDN connec-
tions according to Euro ISDN protocol DSS1. Using the system on other
connections can cause malfunctions.
This ISDN telephone system has been designed and manufactured in ac-
cordance with the „Information Technology Equipment Safety” standard (EN
60950). Only devices complying with this or an equivalent directive may be
connected to this ISDN telephone system.
Installation procedures must be carried out by a professional. Installation
procedures on the 230v mains network must be carried out by a qualified
electrician. VDE 0100 must be observed.
In case of any malfunction, please disconnect the unit from the line and de-
tach all ISDN connection cables.
The ISDN telephone system may not be installed and operated in the follow-
ing environments:
outdoors
in damp or wet rooms (bathroom, shower, swimming pool...)
in surroundings prone to risk of explosion
in locations exposed to direct sunlight
at ambient temperatures below 0 °C or above 40 °C
in locations subject to severe shaking or vibration
in dusty areas
Lay the connecting cables carefully to avoid any danger of tripping. The
connecting cables must not be subjected to excessive pulling or bending or
mechanical loading. All connecting cables must only be used indoors.