General Information On Bus System; General Information On The Installation - HomeMatic HMW-IO-12-Sw7-DR Assembly, Installation And Operating Manual

with a programming device and software. Further
resulting functionality and the additional functions
provided in the Homematic system combined with
other components are described in the separate Con-
figuration Instructions and in the Homematic System
Manual. All current technical documents and updates
are provided under www.Homematic.com.
5 General information on
bus system

5.1 General information on the installation

Basically, the connections of the HMW components
can be divided into two groups. In the load side and
in the control side (24 V power supply, button inputs,
RS485 Bus).
Load side
Since normally a 230 V consumer is on the load side,
using VDE-conforming installation wires, such as e.g.
NYM wiring, etc. is required. The wire cross-section
conform with the standard VDE regulations and is
1.5 mm2 for installations in the nominal load range of
actuators.
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