If you are only adding to a circuit it by way of extending it there must be a EOL in place already.

unless....... trying to spur off a zone

PS if your on The Isle of Arran OP I've got a little work for you.

Thanks for the responses, much appreciated !

The panel is indeed a 1 zone type with a seperate circuit for the sounders. Ill dig out the old detectors and try rescue the old eol resistor as someone suggested and order a couple of spares from Maplins.

I am on the Isle of Arran, how much work do you have for me ?

Anthony

1 zone type with seperate circuit for sounders as opposed to what?

it's conventional, non-addressable, right?

you extended the zone, so add devises and move EOL.

problem, none if you have even the most basic knowledge of fire alarms.

Anthony do you do fire alarms regularly or just once in a blue moon?

not flaming but to help we need to know your skillset.