Proximus forum 523, Mounting And Commissioning Manual

Page: 34 / 228

Safety Precautions
32 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
terminals 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 discon-
nected 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 connected to
the analogue ports. Please see the chapter on
a/b Ports starting on page 51
for further information.
A maximum of 8 a/b and ISDN terminals with an external power supply can
be connected.
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 terminals must be
carried out by accredited specialists. Inappropriate repairs may damage the
Forum 523/524 and will render any warranty claims invalid.