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

Rs485 i/o module 12 inputs 7 switch outputs for mounting on din rails
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(A) - External conductor connection Load side
(B) - Output terminal Channels 1 – 7
(C) - Bus A
(D) - Bus B
(E) – Bus power supply
(F) – Button input terminals
4
General system information
on HomeMatic
This device is a component of the HomeMatic Home
Control System.
All devices are delivered in a standard configuration.
The functionality of the device can also be configured
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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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