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Important safety information
Operating manual HDQ1 V2 - Version 07-2021A
Adhere to all applicable national safety regulations and stand-
ards.
Excess mechanical loads (e.g. falling, impacts, vibrations)
may damage the insulation used to provide protection from the
mains voltage.
High excess currents (lightning strikes, surges in the power
utility grid) may damage the insulation used to provide protec-
tion from the mains voltage.
If there is no information about the intended use (e.g. oper-
ating site, ambient conditions), or the operating manual does
not include the corresponding information, you must consult
the manufacturer of this device to ensure that the device may
be installed. If you do not receive the required information from
the manufacturer, do not operate the device.
In rooms in which the climatic conditions vary (e.g. due to
sunlight), the device may only be operated if the permissible
ambient temperature can be maintained.
Do not install the device and external power supply unit in loca-
tions with excessive dust formation, as this may impair the
isolation from the mains voltage.
Electromagnetic compatibility (EMC)
In order to avoid malfunctions when operating radio and telecom-
munications equipment, as well as other operating units or broad-
casting services, the following must be observed:
Before installation, make certain that you have checked the
device for mechanical damage. Do not use damaged or bent
covers or housings.
During operation, the device must always be covered by the
components provided for this purpose. It is not permitted to
operate the device when the cover is open.
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