Hey I installed a crimeguard 745i3 alarm in my Eclipse and recently a friend of mine gave me an extra siren. I tried wiring the siren directly with the one I already had and just grounding it but it wont chirp like its supposed to. Now tneither siren works until the alarm is triggered. I was thinking that I may need a relay to help power the second siren but does anyone know how to wire two or more sirens to an alram? Thanks in advance.
#1116, "RE: Alarm Wiring Question" In response to Reply # 0
Well you need to know what kind of trigger your alarm is, or what polarity the alarm is putting out to the siren. Most alarm systems use a positive wire that goes to the siren, and then just ground the neg wire of the siren, but some alarm systems use a neg wire that comes from the alarm. To be safe when using 2 sirens with an alarm, you should use a relay. Get any 12volt SPDT relay. Assuming you have a positive signal coming from the alarm system: Pin #85 on relay-hook up to the positive 12v siren signal from the alarm. Pin# 86-hook this to ground. Pin# 87-hook up to battery or any high current 12 volt constant source. Pin# 30-hook this up to the pos lead of the siren, and just ground the siren's neg to ground. hope this helps, any more q's, just speak up
13.5 @108 MPH-2.2 60ft(stupid FWD!) S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential fuel injection) My webpage: http://eclipsed4evr.home.comcast.net -1998 Mitsubishi Eclipse RS-T- "Toy" -1992 Plymouth Laser Turbo AWD(SOLD) -2000 Honda CR-V(daily)
