the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

Piezo Siren Add-on to Siren with Chirp


Post ReplyPost New Topic
< Prev Topic Next Topic >
logem 
Member - Posts: 3
Member spacespace
Joined: September 25, 2002
Location: United States
Posted: September 30, 2002 at 12:27 PM / IP Logged  

I just finished installing an Alpine SEC-150R in my Jeep Wrangler.  I want to add a piezo siren under the dash.  After reviewing previous posts, it seems that the best way is to tie into the siren output with a relay.  My question is:  If I do this will I eliminate the soft chirp feature of the system?  Is the soft chirp produced from a lower voltage output than when in full alarming mode?  If I power both sirens (Alpine & piezo) with the relay, then they will get a full 12 volts everytime.

The siren output on the Alpine is 2 amps.  I have purchased an inline 2 amp fast acting fuse, and am considering just wiring both sirens directly to the alarm output.  If the fuse blows, then I know that they will draw more than 2 amps, and that I will have to use the relay.

Any ideas on how the soft chirp works?  And will I eliminate this feature with a relay?

BTW, I admire all of you installers.  Although I managed the install and feel that I did a "professional" job with all wires taped and loomed to look factory, It sure was a total pain and took LOTS of time.  I should have paid the $130 for an install.  At least I learned alot.

the12volt 
Administrator - Posts: 3,957
Administrator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 07, 2002
Location: Louisiana, United States
Posted: September 30, 2002 at 1:04 PM / IP Logged  

Hi logem, yes, the best way is to use a relay on the siren output. You can leave the Alpine siren connected as it is now and connect terminal 85 of an SPDT relay to the (+) siren output of the alarm. Connect terminal 86 to ground. Connect terminal 87 to constant 12V+ with a 5 amp fuse and connect terminal 30 to the positive lead of your additional siren. Connect it's negative lead to ground.   

the12volt

logem 
Member - Posts: 3
Member spacespace
Joined: September 25, 2002
Location: United States
Posted: September 30, 2002 at 1:12 PM / IP Logged  

the 12volt,

Thanks.  I'll do that.  The relay and Alpine siren shouldn't  exceed 2 amps (I hope).  I'll fuse it for safety.

Mike L.

carguy411 
Silver - Posts: 683
Silver spacespace
Joined: April 02, 2002
Location: United States
Posted: September 30, 2002 at 5:38 PM / IP Logged  

i read on the mini peizo sirens that you dont need a relay. i have a crimestopper alarm do i need to add a relay.just makin sure

thanks

the12volt 
Administrator - Posts: 3,957
Administrator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 07, 2002
Location: Louisiana, United States
Posted: September 30, 2002 at 5:50 PM / IP Logged  
Some alarms may be able to handle more than one siren connected directly to it's output, but it's always a good idea (good habit) to add the relay .
the12volt 
Administrator - Posts: 3,957
Administrator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 07, 2002
Location: Louisiana, United States
Posted: September 30, 2002 at 5:50 PM / IP Logged  
Hi Mike, you're welcome. Glad I could help.

Sorry, you can NOT post a reply.
This topic is closed.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Tuesday, July 15, 2025 • Copyright © 1999-2025 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer