Hi,

 

Forgive me if this is very obvious, but I am new to wired alarms and just want to confirm in case all goes wrong...

 

We purchased the Castle Euro Mini alarm from you recently, we are looking at installing it but had a query, if we want to wire more sensors than we have inputs in the unit, can we wire them in parallel  in the same way you would wire the Tamper circuit in double pole wiring? then if so, is there a limit or recommended maximum for sensors and cable lengths etc?

 

Our other question, due to it's position, we purchased a duplicate genuine alarm box (not a dummy). should these be wired in together to the same terminals or is there another way?

 

Again apologies is these are very obvious questions but your advice would be appreciated. 

 

Many thanks

if we want to wire more sensors than we have inputs in the unit, can we wire them in parallel  in the same way you would wire the Tamper circuit in double pole wiring? then if so, is there a limit or recommended maximum for sensors and cable lengths etc?

 

its not good practice to do this, it is possible and it will work but in the future fault diagnosis will be impossible. You would wire in series also not parallel.

 

Our other question, due to it's position, we purchased a duplicate genuine alarm box (not a dummy). should these be wired in together to the same terminals or is there another way?

 

you need to series the tamper return and ho -ve when using 2 bells but it sounds like the euro mini isnt suitable for  your system. it may not have enough power for the size of your system.

Thanks for your reply and advice!

 

It was just for 1, 2 at maximum door contacts that I was going to add. along with the alarm box, do you think it will cope?

 

Regards

depends on your total load, if you list all your items ill be able to approxomate

We were thinking of 3 PIR's and 4 door contacts, then the 2 bell boxes...

be cautious with 2 bells, you might be better setting the second bell as an scb rather than sab

arh ok thanks. I missed off by accident as we don't have it yet, but we were going to add an auto dialler to the unit. Hence running short of that 1 extra input.

 

 

Just to confirm, do you mean both wired with a tamper and switch, but 1 box supplied by a separate 12v supply+battery back up? 

Just to confirm, do you mean both wired with a tamper and switch, but 1 box supplied by a separate 12v supply+battery back up?

 

you need to wire the ho- of the second bell from the tamp return of the first. Or only connect 1 tamper switch.

you need to wire the ho- of the second bell from the tamp return of the first. Or only connect 1 tamper switch.

I'm not entirely sure of how the link works now... do you have any diagrams that show all the connections of the 2?

 

If I were to have the second bell box with an independent power supply (it would use the ho+ and ho- is that right?) so i'm not sure how that would work

no i would run the bells from the panel and run everything else from the 2nd psu or use a bigger panel.