Re: Simple LED Alarm Bell for CCTV recorder

["Jackcsg" <nospam@xxxxxxxxxx>]

It was simple until you said you wanted the LED to flash. Are you good with
a solder gun? It is easily done, but it's going to be a little intricate if
you're only a DIY'er. Do you want the buzzer to be intermittent with the
LED, or a small steady buzz? The switches are easy because you can use a
DPDT switch to "shunt" the alarm device.

<me@xxxxxxxxxxx> wrote in message
news:vqub31h62h0d1mcs5j5s0j00g6d6c2bjjq@xxxxxxxxxx
> I'm looking to get this DVR for a new CCTV installation.
> Shown here: http://www.securexsolution.com/download/se104s-um-e.pdf
>
> Basically, when someone walks past the sensor, it should trigger the
> alarm I wire up to the back of the CCTV DVR. I think most time lapse
> VHS recorders have sensor/alarms terminals on the back.
>
> On page 9 and page 10 of the above .pdf, there is a picture of the
> sensor (Dry Contact Input), a picture of a LED relay, and a picture of
> an alarm bell relay.
>
> Can someone tell me an easy way to hook this up so when someone
> triggers the sensor, I can get a quiet buzzer to sound and and a LED
> to flash. I want an on/off switch for each sensor, only want to buy
> one buzzer and 8 LEDs.
>
> I'm in the UK and www.maplin.co.uk has parts online for everything
> like this. I suspect I have to make my own kit as I can't find
> anything pre-built in google for CCTV alarm bells.
>
> The system I'm getting has 8 sensors input and 8 alarm bell 500ma, 12v
> outputs. The picture only shows 4 and 4. Should be quite simple
> though. Any ideas?