Panel in scb mode?

Got a b in electronics and cdt gcse for my ultrasonic wirefree disabled alarm, a joint project shared between the two

sorry scb mode? what is that exactly?, sorry this is the first and only alarm iv ever fitted so very limited knowledge on these.

dont worry mate another discussion going on i think.

dont worry mate another discussion going on i think.

oh right sorry , i think its time I gave up and got some rest lol

404 on the link

 

But yes , could be SCB.

 

Time for sleep. Come back tomorr...............ahh it is.

 

Later, much later.

Far left connections 12v and 0v. Not aux in the middle. You need a link of wire between 0v and bell tamp return too. This is also on the far left of the pcb.

Far left connections 12v and 0v. Not aux in the middle. You need a link of wire between 0v and bell tamp return too. This is also on the far left of the pcb.

I have a link between 0v and tamp and still no joy

sorry scb mode? what is that exactly?, sorry this is the first and only alarm iv ever fitted so very limited knowledge on these.

 

Sirens have 2 methods of getting the power to drive them. SAB draws the power from the control panel and SCB used the sirens internal battery. Are the sirens you connecting proper sirens with a housing and a tamper etc or are they just 12v sirens with just 2 wires coming out of them?

Sirens have 2 methods of getting the power to drive them. SAB draws the power from the control panel and SCB used the sirens internal battery. Are the sirens you connecting proper sirens with a housing and a tamper etc or are they just 12v sirens with just 2 wires coming out of them?

ok and I have no idea how to switch between these methods,  the sirens are just basic 12v ones with a +/- coming out of them. 

Sirens have 2 methods of getting the power to drive them. SAB draws the power from the control panel and SCB used the sirens internal battery. Are the sirens you connecting proper sirens with a housing and a tamper etc or are they just 12v sirens with just 2 wires coming out of them?

if i connect it to the hard +/- of the panel then the siren is at full volume

Ok. You have neither SAB or SCB in that case. You just have a 12v siren. Alarms normally switch the negative to the siren, not the positive so this should be a simple case of connecting the red wire to the +12v supply of the panel and wiring the black wire to the bell trigger terminal and that it, there are no other connections to do.

if i connect it to the hard +/- of the panel then the siren is at full volume

That makes sense.

Try just connecting 1 of the sirens to start with and see if that works as you would expect. If so connect the second and re-test.