Homematic IP HmIP-FALMOT-C12, Инструкция по установке и эксплуатации

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Troubleshooting
10.2 Duty cycle
The duty cycle is a legally regulated limit of the transmission
time of devices in the 868 MHz range. The aim of this reg-
ulation is to safeguard the operation of all devices working
in the 868 MHz range.
In the 868 MHz frequency range we use, the maximum
transmission time of any device is 1% of an hour (i.e. 36 sec-
onds in an hour). Devices must cease transmission when
they reach the 1% limit until this time restriction comes to
an end. Homematic IP devices are designed and produced
with 100% conformity to this regulation.
During normal operation, the duty cycle is not usually
reached. However, repeated and radio-intensive teach-in
processes mean that it may be reached in isolated instances
during start-up or initial installation of a system. If the duty
cycle is exceeded, this is indicated by three long flashes of
the device LED, and may manifest itself in the device tem-
porarily working incorrectly. The device starts working
correctly again after a short period (max. 1 hour).