User guide

Safety Precautions34
Installation
CAUTION! Never start or operate the Forum 523/524 if
the power supply unit or power cord is damaged. Serious
danger to life from electric shock may result.
Cables and Terminals
Ensure that all cables are laid in such a way that nobody can walk
on or trip over them.
Only U
pn
lines, a/b lines and switching circuits (door opener to
actor) may be installed outside buildings. In this case, no S
0
ter-
minals may be operated. Outside cables and terminals may only
be installed and connected to the Forum 523/524 by qualified
specialists observing the appropriate safety measures.
Forum 523/524 and all connected terminals must be electrically
disconnected from the earth ground (protective earthing). For
example: where you have an earthed door, make sure that the
door opener connected to the actor port of the Forum 523/524
does not come into contact with the metal parts of the door.
Only devices which provide SELV (Separated Extra Low Voltage)
may be connected to Forum 523/524. Proper use of authorised
devices complies with this stipulation
Only terminals which fulfil the technical requirements may be con-
nected to the analogue ports. Please see the chapter on a/b Ports
starting on page 55 for further information.
Use a shielded Ethernet cable (STP cable, Shielded Twisted Pair
cable) to connect Forum 523/524 to a local network (LAN, Local
Area Network).
Usage
Make sure no fluids to get into the Forum 523/524: electric shock
or short circuit may result.
Repairs to the Forum 523/524, and all its accessories and termi-
nals must be carried out by accredited specialists. Inappropriate
repairs may damage the Forum 523/524 and render any warranty
claims invalid.
Keep the Forum 523/524 and its accessories and packaging out of
reach of children!