barry p

tried this still the same ill take your advice and get a new panel thanx all for advice kind regards barry

hi h tried this and sounder working perfect kind regards barry

not sure make but is called fortress i have multi meter not sure how to check though when 12v+ wire is out sounder working ok also battery was bought jan 06 there is no scorched marks on circuit board kind regards barry

this should have shown like this bell box..................logic 4 panel tamp return............T= tamp return hold off - ..............A= 0 volts hold off + .............D= 12v+ trigger -ve ............B= trigger

can any one help ive got a logic 4 panel on my shed which is wired to a sab bell box as follows bell box logic 4 panel tamper return - t=tamp return hold off con - a= 0 volts hold off con + d= 12v + trigger-ve b=trigger the problem is when the alarm is triggerd the sounder is screeching not sounding but if i tamper the bell box it is sounding so i think either the one of the connections are wrong which im sure are not or can the sab work with a scb panel or the panel is knackerd any suggestion please kind regards barry