Auerswald COMtrexx Next Betriebsanleitung Seite 17

Only use original accessories and original replacement parts.
Hire a qualified electrician to lay the cables within the building –
including the cable to the door terminal.
Location Characteristics
Only operate the PBX in closed, dry rooms.
Never cover the device.
Do not expose the device to direct sunlight.
Avoid mechanical loads (e.g. vibrations).
Protect the device from dirt, excessive dust and condensation.
Note the values given for ambient temperature and humidity in the
technical data.
Radio interference can be generated by any device that emits
electromagnetic signals. This can cause interference from overlapping
radio waves from different devices. Medical devices in particular can
be affected in their function. Do not use the device in places where the
use of radio equipment is prohibited. Follow advice and instructions
from authorised persons to switch off radio equipment. If you use
medical devices such as a pacemaker, contact the manufacturer of this
device and find out about the extent to which it is resistant to external
high-frequency energy. If necessary, keep the minimum distance
recommended by medical device manufacturers (e.g. 50 cm).
Prevent unauthorised persons from gaining access to the device and its
programming.
Limitations on Use
Do not operate a damaged device.
Do not touch the devices during a thunderstorm.