KAKU Doorbell not working with RFXCOM Binding

Does anyone knows how to bind my KAKU Doorbell ?

When i use RFXCOMMNGR i get this result:

Packettype = Lighting2
subtype = AC
Sequence nbr = 5
ID = 10D673E decimal:17655614
Unit = 1
Command = Group On
Signal level = 7 -64dBm

The Item i created is :
Switch DOORBELL “DOORBELL” { rfxcom="<17655614.1:Command" }

The switch item is not working…