Burglar Alarm Sirens Guide

Author: Ari Erenthal, Published on Mar 27, 2017

Sirens are used to alert users to an alarm condition. In this note, we examine how to choose, locate, and install alarm sirens, including

  • Siren versus speaker
  • Form factors - surface mount, flush mount, horns, self contained sirens, armored sirens
  • Acoustics
  • Notification placement
  • Power
  • Siren tones
  • Siren drivers
  • Bell supervision

****** *** **** ** alert ***** ** ** alarm *********. ** **** note, ** ******* *** to ******, ******, *** install ***** ******, *********

  • ***** ****** *******
  • **** ******* - ******* mount, ***** *****, *****, self ********* ******, ******* sirens
  • *********
  • ************ *********
  • *****
  • ***** *****
  • ***** *******
  • **** ***********

[***************]

Sirens ****** ********

* ******* ** * device **** ********** * sound **** ** ** provided **** *****.

  • ******* ** **** ********* tones *** ******
  • ******* ***** *************
  • *******
  • **** *********
  • *** ** ****
  • ******** ***** ***** *******

* ***** ** * device **** ******** *** own ******, ******* **** a ***** ** ***** driver.

  • ** **** ******* ** one ** *** *****
  • ********** **** ***** *****
  • ******
  • **** *********
  • ******
  • **** *** ******* ***** driver

**** **** *** ***** industry ***** ** *** the ***** '*****', '*******', 'bell', *** '*******' ***************.

Siren **** *******

****** *** ******** **** come ** ************ *** non ************ **** *******. Sirens ******** *** ****** use *** ***** ******* and *******.

******

****** ****** **** ** surface ***** *** ***** mount. ********** **** ** prefer *** ******* *****, because **** *** **** easier *** **** ****** to *******. *********** ********* often ****** ********** ******, because **** *** **** obtrusive. ********** **** ******* technicians ** ***** *** want ** ***** ***** mount ****** ** ***** residential ********* ** * way ** *************** ********** from ***** **** ************ companies. ********** ********* *** often ******* ** **** a ******* ***** *****.

******* ***** ****** *** be ********* ******* *** easily. ***** ****** ********* have * ********* **** a ******** *** * wire ** *** *****. A ********** ****** ****** a **** *** *** speaker ****, ****** *** hole **** *** *********, makes *** ***********, **** the ******* ** *** backplate, *** ******* ** with * ********. **** mounting *** *********, *********** should ** **** **** to ***** ** *** close ** *** *******, as ******* ***** ****** commonly **** ** **** the ***.

******* ***** ****** ****** not ** ******* ** humid ** **** ******** environments.

********** ****** *** ******* to ******* ***** ******, except **** **** * grill ******* **** *** speaker ******* ** * plastic ******* ******** *** entire ********. ******* ** a *********, *********** *** a **** ** *** drywall ** *********** *** speaker. *** ********* **** commonly **** **** ***** holes, ***** *** **** covered ** * **** plate.

********** ****** *** *********** to ******* ******* *** hole **** ** *** precisely, *** ******* ** the ***** ** ******* crooked, ** ****** ** straightened **********. *******, ** properly *********, ** ** far **** ********* **** a ******* ***** *******.

*******

******* ****** **** ** horn, **** *********, *** armored:

  • ***** ****** ** **** to ********* **** * large ****, ** **** the ******* ***** ** be *********.
  • **** ********* ****** ****** be **** **** ********** the ***** *** ** the ******, ** ***** circumstances **** ***** ********* possible.
  • ******* ****** ****** ** used **** ******* ********* is ******, ** ***** insect *********** ** ********.

***** ***** *** * very ******** ****** ** installers, *** ** ***** ease *** *********** ** installation *** ***** **** tones. *** ****** **** shape ** *** **** allows ** ** **** sound ***** *** ** a **** ***, ******** this ***** ** ******* to ***** * **** large ****. ****** ******* (PA) ******* ******** *** horns, ** ** ********** systems. ********** ******** *** horns ** ***** *****, open *****, **** ** warehouses. **** ***** ***** are ******* *****.

**** ********** ****** ** homes **** ********** ******, installers ********* ***** *** horn ****** *** *****, near *** ****, ****** outwards, ** **** *** horn *** ** ***** outside. ** *** ** challenging ** ***** * siren ** ***** ** wood ******* ******, ** this ****** *** ******** installation. **** ************* **** noise ********** ***** ****** sirens ** *** ******* of *****, *** ******** a ***** ** ** attic **** *** **** may ** *** **** way ** ********* * siren ***** ******* *** home.

**** ********* ****** *** horn ****** **** **** pre ******* ** * stainless ***** ***. ********** commonly ****** ***** **** the ***** **** ** installed ***** ** *** ground, ****** ********* * concern. **** *** ********** lightweight *** ******* * backbox, ****** **** ****** to *******.

**** **** ********* ****** include * ****** ******, which **** ***** *** alarm ** **** ** an ********* ***** ** open *** *** ** order ** ******* *** siren. **** **** ********* sirens ******* *** ****** switches, *** *** *** cover *** ******* *** the ****, ***** **** trip ** ** ********* tries ** *** *** siren *** *** ****. When ***** * ***** with * ******, ********** must *** *** ****-**** for *** ***** *** another *** *** ****** switch ****.

**** ********** ****** ** program ****** ******** ** be **-**** *****. ** hour ***** *** ***** that **** ** ***** signal *** ******* *** alarm **** **** *** alarm ** ********. ** the ****** ** ** a **-**** ****, ********** should ******** ****, ****** on * **** ****** the *****, ** *** wire ***, ** ******* on *** ****** **** of *** *****. *********, a ********** ********* *** system **** *** **** to ******* *** **** and *** *** ***** on ****. ** * technician ***** ** ******* the ***** ******* ********* the ** **** ****, the ***** **** ***** them ** *** **** as **** ** **** open ** **, ***** may ******* **** **** falling *** *** ******.

*** ********* ********* ***** shows *** ************ ** a **** ********* *****, and *** **** ** stands ** ** *********:

** ******* **** ** a ***** **** ** vandal *** ****** ********* without ******* * ***. It ** **** ****** to ****** **** * self ********* *****. ** is **** **** **** likely ** ******* ******* as ***** ** ** place *** **** ** make * ****. ***** sirens *** ************* ******* than **** ********* ******, and *** ********* **** more ********* ** *******. Armored ****** ********* ******* a **** ******, ** detect ******, *** *** a ***** ******. ********** commonly ****** ******* ****** for ********* ***** ********* and ********** ******* *** to ** ********. ******* sirens ****** ******* ** mounted ** *****, ******, or *********** *****, ** these ***** *** ******* the ****** ** ** armored ***** **** ******.

*********

****** ****** ** ******* throughout *** ****** ******** being *********, ** ***** to ***** *** ********* to ** ***** *****. The ******** *********** **** affect *** *** *** way *** ***** **** from *** ***** *******, which **** ****** *** far **** *** ***** can ** *****. *** amount, ****, *** **** shape ** *** ***** will ****** ***** *************.

Sound ********* *********

**** ********* **** ****** sound, ********** *** ******** at ***** *** ***** is *********. ****** ********* that ****** ***** *******:

  • ******
  • ****** *******
  • ******* *****
  • ****
  • **********
  • ******* ********
  • ********** **** **********
  • *** ********

Sound ********** *********

***** ********* **** ******* sound, *********** *** ******** at ***** *** ***** is *********.****** ********* **** ******* sound *******:

  • ******
  • *********
  • *****
  • ******
  • *********
  • *******

Siren *********

****** **** *** ****** to ** **** **** they *** ** ******* heard ********** *** *****. Sirens **** ** ******* in ******** **** **** the ***** ******.

****** ***** **** **** ceilings ****** *** ********* echoey. * ****** ***** mounted ***** ***** ********* be ***** ********** *** first *** ****** *****, saving *** **** ** installing ******** ****** *** both ******.

** *** ***** ***** without **** ********, *** same ****** *** ** achieved ** ******** *** ceiling ** *** ********* near *** *******.

********** ********* ***** ****** inside ******** *******, ******* they *** ****** **********, customers ** *** ******* technicians **** *** ***** inside ***** **** ******* in *******, *** ******* customers ****** ** *** look ** ****** ******** in ***** *****. *******, an ******** ****** ** typically *** **** ********* room ** *** *****, completely ******** ** ******* the ***** *** ****** monoxide ** ******** **** entering *** **** ** the ****. *********, *** sounds ** ****** ** the ****** ***** **** a ********* **** *********** the **** ** *** home.

Siren *****

**** ************* ******* ** least *** ********* ***** of ***** *****. **** allows ***** ** *********** between ** ********* *****, during ***** **** ****** either **** ** ****, and * **** *****, during ***** **** ****** evacuate *** ********.

**** ** ****** ***** demonstrates * ****** **** of ***-**** *****. *** first **** ** ************, *** ** ******** used *** *********. *** second **** ** ************, *** ** ******** used *** **********, **** as ***** *** ****** dioxide. ****** ***** *** volume ** **** ******** or ********** ****** ******** play.

*** ********** ** ** listed **** ******, **** jurisdictions ******* ********** ************ be * ******** **** known ** *-*, ******** 3, ** **** *. Depending ** *** ************* of *** ***, **** local *** *** ****** on ****** ******** ****** capable ** ********** *-* tones.

**** ***** ***** ************ a ********** **** ***** listed ***** ********** *** T-3 ****. **** ***** has ** ********** ******, so *** ******* ** you *** ********* ** sudden ***** *******. ****** lower *** ****** ** your ******** ** ********** before ******** ****.

Power

*** *** **** ******* used ** **** ***** performance *** ******** *** watts. *** ***** **** metrics **** ** ****** siren ******* ****** ****** is *******, *******, *** resistance.

********, ** **, ** a ******* ** ********. Normal ************ ** ******* about ****. ******* ******** in **** *** ** about *****, ***** ** what **** ****** ***** sirens *** ***** **. A **** ******** **** double *** ***** ******.

******* ***** *********** ** measured ** *****, ** W. **** ** *** much ***** *** ******* requires ** *** ** order ** ****** **** volume. ** ***** *****, a ***** ***** ******* will **** ****** ***** if ***** ***. *** less *****, *** ***** the ****** ** *** speaker. *** **** *****, the ****** *** *******.

******** **** **** *** wattage *******: *******, ***** is *** ******* *** speaker *** *** ** long **** ******* ********** damage, *** ****, ***** is *** ******* ******* the ******* *** ****** without ******* ***. ***** exceed *** **** ******* by ************ *** *******. If * ****** **** is ********, ******* *** speaker. ********, *** ******* rating ** *** **** power *** ******* *** handle, *** *** **** power ** **** ******!

Siren *******

**** ***********, ** ** **** necessary *** *** ***** panel ** ****** *** proper ******* ** *** total ****** ** ***** current. **** ** ******* a ***** *** ********* inside **** ******* *** required ****.

**** ***** ********, ** is ********* ** *** a *****, ****** * siren ******, **** ** power *** ******* *** to ****** *** **** of ***** ********. ***** boards *** ******* ** the ***** ****** ******** by *** ***** *****. Some ***** ****** **** built-in ***** *******, ******** installers ** *** ****** sirens ** ******** *** a ********** ***, ********* on ************.

****** *** ******** **** list *** ******* ***********, which ** *** ******** at ***** *** *********** flows. ** ** ***** in*****, ***** **** *** symbol *. **** ****** and ******** *** ***** between ** ** ***.

****** *** ******** **** list ******* ***********, ***** is *** **** ** which *** *********** *****. Current ** ***** ********* ** ****, ***** **** *** symbol *. **** *** split **** ***********, ***** uses *** ****** **, or *********. **** ******** require **** ** ***** quarters ** ** *** to ***- **** **, 500mA ** *****. ****** require **** **** *******, often **** **** **.

********** ** ******** **** reduces *******, ***** ** to ***, ***** *** pressure ** ***** *********** flows. ********** ** ******** in****, ***** **** *** symbol Ω. ******** *** sirens *** * ******* amount ** ********** ** the *******, ***** ******* the ****** ** ******* available ** **. *Ω and *Ω ******* *** the **** ******.

******* ******** *** ********* cheaper, *** ******* **** draw ************* **** ******* than ******, ** ** often ******* ** *** speakers **** * *** calls *** ******** *****, either *** ** *** size ** *** ********* area ** ******* ** background ***** **** *********. Siren ******* *** ********* very *** ****, ***** available *** ~$** *** or ****. *******, ****** are ********* **** ******** and ********* ******.

Siren ******

**** ********** ******** ****** or ******** ** ** alarm, ********** **** ********* the ******** ******* (*** sirens) ** ********. ****** only ****** * ******** amount ** ***** *** sirens, ***** **** ** shared ***** *** *** sirens. ***** ******* **** output * ******** ****** of *******, *** ***** speaker ** *** ******* adds **** **********.

** *** ***** ****** of ********** ***** ********* by *** ******** ******* the ******* ****** ********* by *** ******, *** circuit **** ** ******** in **** * *** as ** ****** **** resistance. **** ****** ******* in ******, **** ***** device ***** ************ ********* to *** *** ****, every ****** **** *** resistance ** *** ****. When ****** ** ********, however, ***** ****** ****** the ****** ** ***** resistance. **** ** ******* parallel **** **** ******** for *** ******* ** flow ***** ****** ***** pathways *******, ***** ****** reduces *** ******** ********* while ****** **** ******.

Bell ***********

******* ****** *** ***** mounted ******* *** ********, intruders ***** ******* ** neutralize **** ****** ********** to **** ***** ** the ********* ****. ***** many ****** *** ****** attempts ** ****** ** remove **** *** ** their ****** ********, ** is *********** ** ******* the **** ** ****. Alarm ****** *** ******* of ********* *** ****** of ********** ** * particular *******. ** ******** that ***** ** * specific ****** ** ********** in * *******, *** panel *** ** ********** to **** * "*******" signal ** *** **** is ******* ** ***. While **** ****** ***** the ********** ** ******* the **** *********** *******, it ** **** ******** to *** **.

**** ***** *********** ******* bell *********** ******* ******** supervision ******** *********** ********* and **** ***** ************. To ********, *********** ******** the ********** ** ****** resistance ** *** *******. To ** ****, ** EOL (***-**-****) ******** **** be *************** *** ****** *** **** *******. Figuring *** ***** *******, exactly, ** ** *** end ** *** **** is *** **** *********. Technicians ****** ** **** to ******** ***** ******* is *** *** ** the ****. ** **** was *** **********, ***** a ********** ** ******* the ********** ** *** siren ***** *** ******* help *********** ******** * wiring ***.

**** ****** ****** ** parallel, **** *********** ****** be **** ** *** splices *** ***** ** be **** ** *** alarm *****, ** ***** is ** "*** ** the ****". *********, ****** should ****** ** ***** in * ***** ***** pattern, **** ** *** sirens **** ********** ** wired ** ** ********.

Comments (4)

One thing to add (I may have missed it) is that if you want to sync all of your sounders you would need to use speakers with a siren driver. I haven't read anything that required the intrusion to sync but have had customers request it after they heard two sirens going off in a home.

Good point, UD1! Syncing usually isn't required for intrusion (unlike for fire, where it is), but if you do need/want to sync, you have to do with with a siren driver.

Of course there are digital "bus / network" sirens. These use RS485 to communicate. Risco and Orisec use this to effect as do some others :)

Thanks, Paul. I just checked it out. Seems like a real unique product concept. I'll have to learn more.

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