User guide

Safety Precautions 33
Installation
Do not install the Forum 523/524 during a storm. Do not connect
and disconnect lines during a storm.
CAUTION!
Static charges can damage the Forum 523/524’s electronic
components. Please make sure that you discharge yourself
and your tools before and during any installation work on
the Forum 523/524.
Connection to the Mains Power Supply
The Forum 523/524 may only be plugged into mains power sock-
ets which have a protective earth conductor. It is not necessary to
provide any additional earthing for the Forum 523/524.
Recommendation: Connect the Forum 523/524 to a separate
230 V power circuit so that short circuts occurring in other devices
do not put the Forum 523/524 out of operation. The mains power
connection must be installed by a licenced electrician to avoid
danger to people or materials!
DANGER! Dangerous voltage in device! Pull the plug out of
the power socket before opening the device and connecting
any lines/terminals or installing interface cards! Failure to
do so may cause danger to life from electric shock!
The Forum 523/524 does not have its own power supply switch.
To disconnect the Forum 523/524 from the mains power supply,
pull the plug out of the power socket.
Install the Forum 523/524 near an easily-accessible mains power
socket so that the plug can be quickly pulled out of the power
socket in a hazardous situation.
Power Supply Unit and Power Cord
Use only the power supply unit and power cord provided to con-
nect the Forum 523/524 to the mains power supply.Other power
supply units and power cords may cause malfunctions or electric
shock and damage the Forum 523/524.