User Manual
29
5.2 Topology of the bus system
The HMW components should always be mounted
in groups of sub-divisions to provide a better over-
view. The number of sub-divisions that is appropri-
ate depends on the type and size of the project and
istobedenedaccordingly.
Installing at least one sub-division on each level is
recommended. Larger buildings may require plan-
ning several sub-divisions per level (e.g. separate
for every floor). All load and control wiring should
also be run in a star format to the respective sub-
divisions. The power supply is done through a DIN
rail power supply HMW-Sys-PS7-DR or another
24 V power supply dimensioned according to the
number and total current consumption of all existing
modules in the respective sub-division. If central
programming and control is to be done through
the HomeMatic Centre, the HMW bus lines for the
individual sub-divisions and the lines coming from
the control PC or a Centre should be run together
in a room according to available space in order to
achieve a separation of the individual bus segments
and to simplify troubleshooting if necessary. Normal-
ly, this is the room in which the HomeMatic system
Centre is installed.