Abus az4140 relay board for terxon sx mx 8 outputs abus az4140 p the abus az4140 relay board for terxon sx mx 8 outputs with eight outputs is an extension module for the terxon sx and the terxon mx the outputs are thus provided to the alarm system p p on the motherboard of the terxon sx there are three transistor switching outputs with a max 0 5a switching capacity the terxon mx comes with 1 transistor and 2 relay switching outputs these switching outputs can be activated by spec