Home Alarm Siren: can split wiring and run two sirens?

wynswrld98April 25, 2013

I have a Orevox R58GS self-contained electronic siren 6-12 VDC (I'm reporting what the label says), I do find this siren still available (I didn't install it, was there when I bought the house). It has wires colored red (warble), white (negative) and yellow (steady).

I was recently broken into, one of my neighbors was home but didn't hear the siren (although it works) but I live in an area of acreage homes and the siren is on the opposite end of the house where this neighbor is. The siren is outside on the roof.

What I'd like to do is split the wire running into this siren and run a second siren over near the neighbor that didn't hear it. I know NOTHING about home security system wiring/etc. so I wanted to ask the experts here it it's doable.

I had to call the alarm monitoring company out once for a 2-minute fix of a door sensor, they charged $150. I can't afford to call them out for this so need to figure out a way to DIY it.

Thanks!

Thank you for reporting this comment. Undo
Ron Natalie

Depends on what the alarm system you are connecting it to can support. To be sure you'd need to check the documentation on the alarm or look at the relay or transistor that is driving the siren to see if it can sink enough current for both units.

Of course, the other issue is what you expect your neighbor to do when your siren is going off. Generally the noise makers are for the benefit of the criminal whose poking around.

    Bookmark   April 25, 2013 at 7:26AM
Thank you for reporting this comment. Undo
wynswrld98

Thanks for responding.

The alarm system was here when I bought the house and I have no documentation on it. When you say to look at the relay or transistor that is driving the siren I can see if there is a legend but if I find it what exactly am I looking for?

What I'm wondering is the siren says 6-12VDC so does that mean it's capable of running at 6 or 12 VDC (or anywhere inbetween)? Is it conceivable the alarm panel is sending a 12VDC signal in which case if I split it I'll be sending 6VDC to each of my two sirens? I'm just totally guessing on all of this, when I read 6-12VDC on the siren it had my mind wandering and this is what I came up with.

    Bookmark   April 26, 2013 at 12:30AM
Thank you for reporting this comment. Undo
Ron Natalie

I think that siren will take any voltage from 6-12.

You are going to hook these up in parallel (i.e., the two wires from each siren to the same terminal on the alarm). That way they'll both see 12V (or whatever the alarm puts out). The issue is that the current the alarm will have to provide will be the sum of the two currents, and so you're needing to find if the addition of the second exceeds that.

Do you have central monitoring? My favorite is to get a monitoring company that will also send text messages out to your (and perhaps your neighbors) phones. As I said, the noise makers are primarily to scare off the intruders.

    Bookmark   April 26, 2013 at 10:01AM
Thank you for reporting this comment. Undo
steve340

Your siren should have an amp rating of what it draws and your panel should have a maximum current for the alarm output. If an additional siren exceeds that limit, you can add another power supply with a relay to run the other siren.

    Bookmark   May 11, 2013 at 1:07AM
Thank you for reporting this comment. Undo
brickeyee

"If an additional siren exceeds that limit, you can add another power supply with a relay to run the other siren."
as long as the relay coil does not overload the output and the output is designed to drive relays.

Relays have a nasty habit of producing a voltage spike of the opposite polarity when switched off abruptly.

    Bookmark   May 11, 2013 at 12:46PM
Sign Up to comment
More Discussions
Doorbell goes off by itself.
Can anyone tell me why this would happen? It's a wired...
stu2900
Multiple Fluorescent Ballasts in one light fixture
Hello GardenWeb. I'm not new here, but couldn't log...
MikeM21
Looking for Ideas For Lighting at base of 300' long driveway
Sorry for the "picture through the screen"...
dixieman
Spa Capacitor question
My spa is wired for 220v. The pump motor is rated for...
pugmark
Crawl Space Junction Boxes: inspection and capping
Hello. I'm in the process of crawl space improvement....
SparklingWater
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™