I am very unhappy with my new REX 7 receiver. Before I buy the receiver I read carefully the manual. It say you can connect a expander to the EXT port and connect multipel sensors to expander. It don't say " Look out! Alarms not working".
Above this message Harald give a explanation why this not work well.
Jeti is always proud equipment is downward compatible. In this case, a DC-16, a REX 7 receiver and a EX expander with EX sensors is not compatible.
I hope JETI will fix this soon with a softwareupdate.
With greetins,
Nico