Scantronic 9600 with two SABs

[Guest Rocky]

How do I connect two SABs to a Scantronic 9600?

I've simply doubled up on connections but for whatever reason the bell box tamper isn't working and neither is the strobe light.

Any ideas?

[Brian c]

Connect the Hold Off, Trigger and Strobe in parallel. Then connect the Tamper of both boxes in series.

If you do not understand this, you should get a professional to help

[Mister_Dave]

What bellboxes are you using because the current draw may be too much for the panel.

[black knight]

Ive used two bells on a 9600 before and it takes it ok but if in doubt check loading in alarm and if too much fit a power supply to power pirs etc.

as to the bell connect +ve feed(*2) in parellel, strobe (*2)and bell op (*2)on parellel, -ve feed to 1st bell , -ve tamper return from first bell to -ve feed of 2nd bell, and last but not least -ve tamper return from 2nd bell to -ve tamper in control box.

paul

[Paul P]

When fitting two bells we use one SAB & one SCB on the gardtec bell in is just a process of changing a jumper on one bell box.

[Guest Rocky]

When fitting two bells we use one SAB & one SCB on the gardtec bell in is just a process of changing a jumper on one bell box.

30430[/snapback]

Why?

I've used 2 x Gardtec Delta Metal Series (both in SAB mode).

I think I've sussed the tamper problem out now although I'm still a little bemused as to why the strobe fails, there again I don't know how much current two strobe circuits pull and I don't know how much current the 9600's strobe output can sink/source?

Perhaps I'll try putting a relay in to drive the 2 x strobes from the aux supply, surely that'll have more umphh?

[Mister_Dave]

The gardtec deltas use a high amount of current in sab mode change one to scb, because as soon as the unit goes into alarm the bell fuse will blow

[Deltaseven]

-ve tamper return from first bell to -ve feed of 2nd bell

paul

30420[/snapback]

I hate it when I see this done! I don't believe the negative return is designed to carry the load of powering another SAB module - it is signal current only. I may get shot down for saying that, but I have seen this wiring method causing problems before.

When using two bells, I prefer to wire them as per manufacturer spec (the Texecom Odyssey range have a pretty nifty way of wiring two SABs together) or use a relay per tamper circuit, and put the N/C contacts of the relays in series.

D7

[Paul Giles]

In the very rare event of two sabs we have used that method without problems.

All depends on the connections available, yes the odyssey range has a good method but two sabs is quite dated now i reckon, no one takes any notice of one!

Get one decent siren, tamper the decoy if thats an issue and get connected to a c/s.

Paul

[Deltaseven]

I prefer to have a clean circuit wired straight into a spare zone and programmed as 24 hour. You can give each bell its own description then (depending on the panel used obviously!)

30493[/snapback]

Even better!!