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Important warnings
Warnings
Before every removal of the upper cover of the CU pull the mains plug out of
the socket! The live parts inside the CU have no contact protection, and the
voltage is deadly!
The CU must not be used without proper earthing! Before putting it into
operation, check the earthing of the mains socket from which you want to
power the central unit.
Do not operate the CU without the top cover or without earthing of the cover
via an earthing wire with a FASTON connector!
The CU must not be used if the intake power cable is damaged! Only the
manufacturer or a qualified electrician may replace the power cable. After the
replacement of the cable check whether a compression band is installed on it
to prevent the cable being pulled out of the terminals when it is subject to
mechanical stress.
If you replace the mains cable with a fixed mains power cable, in the power
circuit do not forget to include a circuit breaker which you can use to switch
off the mains power to the CU if needs be. In the case of permanent
connection of the equipment, a suitable disconnection device must be
ensured as part of the electrical fittings in the building.
Warnings
In no case connect an AC source or unstabilised DC source. The CU could be
damaged.
The connection of the audio unit to a different conductor, for example to a
higher voltage, will result in its damage or destruction.
Maintain polarity when connecting the audio unit, otherwise the audio unit
will not work.
Non-adherence to these instructions could result in damage to the product.
Safety
The bus is electrically separated from the circuits of the telephone line in
accordance with the requirements of EN60950 and has only low voltage
which cannot cause an electric shock injury.
Warning (module PSTN)
Only one CU may be connected to one telephone line, and no other end
telephone equipment may be connected to it.
Neither is it possible to use a product which the telephone line goes through,
i.e. a priority connection (for example electronic burglar alarm).
It is not possible to use an extension or party line.
It is not possible to use telephone "adaptors", not even smart ones.
In no case connect the product to an ISDN line.
Warning (rechargeable battery)
Never leave the rechargeable battery flat for a needlessly long period.
If the battery is completely flat, recharge it as soon as possible.
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