Accenta Gen4 - Adding 2nd Bell Box

[springfield2]

Hi there,

Just newly joined the forum here as was browsing some of the forums and wondered if anybody could help with a small query:

I need to increase the security of my ground floor flat and have decided that it would be a good idea to add an additional bell-box to the alarm system that I originally installed as per subject line with an AG6 bellbox.

My concern is that I would like to undertake the small project with the minimum of disruption and without triggering any alarms. Can I just check that - if I enter engineer mode (i.e. by pressing 'P' and then the four digit code) that anything I do after that will not trigger an alarm?

Essentially there is a backup battery and I will be powering down the unit, unscrewing the bellbox connectors, adding in the new cables in no particular order, removing the existing T Return and using a connecting block to connect it to the Hold Off (-) of the new box whilst wiring the T Rtn of the new box to the T SCB of the central unit. Does this sound right?

Thank you,

Mart.

 

[Europlex]

It's an alarm system, you start to 'play' with it and it will make a noise, it's what they dooooooo!

 

[sapphal]

Have a look here
http://www.diy-alarms.co.uk/pscatalog/modules/blocknews/item.php?item_id=18

 

[springfield2]

Thanks that article was helpful. The existing box takes power from the battery (SCB) so I guess I could set the 2nd box to SAB.

What I am really wondering is how the alarm bell box 'knows' it is in engineer mode... For example if I remove the TR wire or the hold off - wire from the existing box in engineer will the bell box alarm go off?

Or if any of the other wires lose connection whilst I am adding in the new box wiring wiould that cause a problem?