RADSON 51045 Guide D'utilisation page 10

Your main zone programmer can manage up to 3 Masters
(Maximum 12 zones by Masters), select "Master A" as no unit
already installed.
choose the "RF init" button to start the RF initialisation,
e)
The main zone programmer will be learned with the MASTER-RF
and it will receive in the same time all information of the his
configuration (number of zones used..).
f) When the configuration between MASTER-RF and Main
zone programmer RF is finished (few seconds), the
following screen must appear and the MASTER-RF should
exit the "rF init" mode.
10