Hello, welcome to the forum.
S1 and Com support only dry contacts of the dead switch (the potential on them is 220 volts). Dry contacts of the relay work according to the settings of the T2 relay regardless of the power supply voltage (24 volts AC, DC or up to 220 volts AC).
In 24 volt power mode for the relay, S1-com DOES NOT WORK.
Topics where the garage door issue was solved How connect an aqara relay T2 using 24V (solved) - #12 by gafich10
Description of the T2 relay. Rele T2, let's talk about it again
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