Due to the extension of the HomematicIP Protocol with advanced routing, the HomematicIP
system will become even more flexible and provides the following advantages:
Extension of the wireless range via additional Access Points to practically any arbitrarily
sized buildings or in more remote living areas, such as e.g. the garden house.
Fail safety for direct links between HomematicIP devices by tying in an additional
Access Point.
Homematic IP
Access Point (HmIP-HAP)
Advanced Routing
Homematic IP devices
LAN
Data connection (mobile data)
Wireless
Cloud-Server
Homematic IP
App
Router
Homematic IP
Access Point (HmIP-HAP)
4.2.1 Range extension
Generally, HomematicIP wireless components communicate – owing to their open field
range of about 150 to 400 meters – trouble-free even over considerable distances within
buildings. However, it cannot be excluded that the range is impaired in case of larger buildings,
unfavourable structural conditions or non-ideal placement of components.
In order to optimise the wireless range in these cases, HomematicIP principally oers two
possibilities:
• Range extension by an additional Access Point (HmIP-HAP)
• Range extension by Pluggable Switches or Pluggable Switches and Meter, respectively
4.2.1.1 Range extension by an additional Access Point
Expansion of the HomematicIP Protocol renders it possible to tie in an additional Access Point
into a HomematicIP installation. Thanks to advanced routing, the wireless range can be signifi-
cantly increased, if necessary; for example, if the optimum wireless covering over several floors
or in larger buildings is concerned.
In a comparison regarding range extension with HomematicIP Pluggable Switches or, respec-
tively, Pluggable Switches and Meter, the use of an additional HomematicIP Access Point is to be
preferred. This provides the advantage that the duty cycle3 of an installation – due to increased
radio communications – is not reached as fast if an additional Access Point is used than in case
3 The duty cycle is a legally regulated limit of the transmission time of devices in the 868 MHz range. In the 868 MHz frequency range which we use, the
maximum transmission time of any device is 1% of an hour (i.e. 36 seconds in an hour). When they reach the 1 % limit, the devices must cease transmission
until this time restriction comes to an end. During normal operation, the duty cycle is not usually reached. However, repeated and radio-intensive pairing
processes mean that it may be reached in isolated instances during start-up or initial installation of a system. The device will start working correctly again
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