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10.2 Command not confirmed
If a receiver (at least one in cases where multiple
devices have been taught in) does not confirm a com
-
mand, the device LED lights up red at the end of the
transmission process. This behaviour may be caused
by the following:
• The receiver cannot be accessed.
• The receiver is unable to execute the command
(load failure, mechanical blockade, etc.).
• The receiver is defective.
10.3 Duty cycle exceeded
The duty cycle is a legally regulated limit of the trans-
mission time of devices in the 868 MHz range. The
aim of this regulation 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 seconds in an hour). Devices must cease trans-
mission when they reach the 1% limit until this time
restriction comes to an end. Homematic devices are
designed and produced with 100% conformity to this
regulation.
