Replacement alarm

[Hamishrock]

Hi guys
this is my first post.
I have just replaced my old (very) alarm, with a new panel and siren, with numerous zones and different programs.
What I would like to do is utilise an existing bell box. This is currently being held from ringing by a 12v battery, as it has an internal battery to make it ring.

My new box is a Honeywell optima compact which has terminals
13v 0v
strobe + -
scb T A
bell + -

My guess is to use the 0v to the wire I have connected to the temp battery -ve terminal, but I don't know which of the terminals which are being used by the siren. I am a bit worried about blowing something up if I try things out. Can anybody advise please

 

[tazz]

Would need to know terminals on bell box to help fully.......the optima terminals works as follows
bell + .....pos hold off
bell - ......neg trigger
scb A......neg hold off
scb T .....neg tamper return
strobe -......neg strobe

 

[Hamishrock]

The bell box is very old as well, and rather hard to get too, and no diagram/ instructions. The only thing I know is that applying the 12v to two of the 4 wires stops it ringing when not alarmed. The other two wires I imagine will be the tamper loop.
i have a red wire connected to the battery + and a yellow wire to the battery -.
Is it possible to say which of the panel contacts to use?

 

[tazz]

Well you can`t hit and miss, you need to either get up to the bell box or replace it.

 

[andyb]

You're only putting off the inevitable Hamish.
If it's that old you should change it.
The battery's probably had it anyway.

 

[Hamishrock]

The inevitable will happen and I will replace the box this summer when the scaffolding is available to paint the gable end. For now I have connectedness the bell up to the 13v pair supply (I have no pirs fitted ).
The bell box wasn,t working a few months ago when I tested it, so I was surprised to be told it was ringing when I chopped it off. Maybe the spider has moved out
Thanks for the help.

 

[telectrix]

there's a marvellous new invention for accessing bell boxes. it's called .............. a ladder.

Lyte DIY Double Extension Ladders