*** ******** ** ** alarm ***** ** ** gather *********** **** ******* and ******* ** **** *********** by ********** *******. ***** it ** ******** ** program ***** ********* ********, most ***** ****** **** a ******* ** ********* preprogrammed *** ******* ***** on *** ******** *** purpose ** *** ******. These *** ****** **** types. In **** ****, ** will **** **** *** various **** **** ******* and **** ***** ** responses **** *** *******, including
- **** ** * ****?
- ******** ** *****
- **** *****
- ****** ** *****
- ********** *******
- ******* ******
- **** ******
- ***** ******
- ******* ******
- ** **** *** ******** Zones
- **** **************
[***************]
What ** * ****?
***** ***** ***** ****** inputs. ** ***** ****** may **** **** ****** inputs (*, **, ***, etc.). *******, ***** ****** inputs ********* ******* **** being ******* **** ******* sets, ********* ** ********, to ********** ********* ** events. ***** ******** ******** those ******* ** ********** this.
*** ******* ** * zone *** **** ** a ****** *******. * sensor ** ***** ** sensors ** ***** ** a *******, ***** ********** at * **** ** screw ********* ** *** panel. *** ***** ******* voltage *** * **** small ****** ** ******* on *** *********, ********** the *******. **** *** sensor ** *** *** of *** ******* ** closed, ******* ***** **** the ******** ********, *** to *** ******, *** back ** *** ******** terminal.
*** *** ********** ** zones ** ****, ******* they ******* ** * zone *** **** ** a ****** *******, ***** cannot ********* ***** ****** in *** **** *** triggered. *********, **** ********** try ** ***** *** number ** ******* ** an ********** *******, ** that ** ***** *** be ****** **** **, at ****, *** ** two ********** *******.
******* ****** **** ** detecting *** ******* ** normally ****** ********, ****** tend ** ***** ** an **** **** ** * ****** **** ** **** **** * sensor *** ******* ** open ******* ** *** completed * ****** *******.
******** ***** ****** *** the **** ********** ** open ***** *** ****** zones, *** *** ** to **** **** *** wireless ******** ** ******* a ****** ********** **** the ********* ****** *** either ** **** ******* or * ****** *******. Since ***** ** ** wired ********** ******* *** sensor *** *** *****, the ***** ** *** actually ********* *** ****** of ******* *** ** instead ******* ** *********** from *** ******** ***********.
*********** ******* ********* ******* * circuit ** ******* ** a ******** ******* ** circumvent *** ***** ** measuring *** ****** ** resistance, *************** ******* * ****** sensor ** * ***** on *** ****.
Examples ** *****
** * *********** ***********, commonly * ** ** zones *** ****. ***** often ******* * ***** zone ** *** ***** door, * ****** ***** detector **** *** *****, and * ****** ** perimeter ***** *** * windows. ****** ********** *** have ******** *****, **** zones *** ********** ******* and ********* * ******* zone.
** ** ****** ***********, dozens ** ***** *** often *****. ** ******** to *** ***** ** zones ** * *********** application, ******* ***** **** have ***** ****** ****, sprinkler ****, ************* *******, etc. *** ****** *** office, **** ***** *** typically **** ** ******* physically ***** ************* *** coming ****.
** **** ****** **********, like *********, **** *** zones *** ******. ** addition ** **** ** office ***** ****, * hospital ***** **** **** multiple **** *****, ******** environmental *****, ******** *** perimeter *****, ***.
**** ** ***** ***** are **** ********** **** zone *****.
Zone *****
**** ***** *** ****** of ****** **** *** be ******** ** * zone **** ***** *** panel **** ** ** when *** **** ** open.
**** * ****** ******* ** alarm *********, ******* ****** can ****** ******* * local ****** ****** **** a ***** ** * relay, **** * ******* signal ** * ***** party, ** ****. **** commercial ***** ****** **** the ******* ** ******* multiple ******* ** *****, including ******* ********* ***** of ******* ******* *** triggering ********* ****** *******. Common ****** ** ******* are ******* ******** ** installers ** *** **** to ******* **** ****** manually *** ***** ****. These ****** ** ******* are ****** **** *****.
** ******** ** ********** * local ****** **** ** a *****, ******* ****** can **** ****** **** ** sending *********** ** * ******* station ********** *******, ***** **** relays **** *********** ** first **********. ************ *********** that ** ******** ** possible ***** *** ***** of *** ***** ****** the ******* ******* ** notify *** ******* ****** safety ****** *** ***** ***** responders *** *********** ** be ******** *** *** call ****** ******** ** scene. **** ***** **** ****** identifying *********** **** ************ to ******* *******, ** the ******* ******* ********** knows ******* **** **** ** zone ** **.
****** ***** ** ***** include:
- ******* ******
- **** ******
- ***** ******
- ******* ******
- ** **** *** ******** Zones
Triggering *******
****** *** **** ** alarm ****** *** ** be ********** ** **** any **** ** ******. The ****** ** **** kind ** **** *********** ** choose ** ** ********* as *** ****** ** device ******. *** *******, an ********* *** ******* * wireless ****** ** **** * panic ******, * ******* alert ******, ** ****** anything ****. * ******** contact *** ** ********** as * ******* ******** zone, * ********* ****, a ** **** ****, or **** * ***** ****.
**** ****** ******* **** as ***** ********* *** carbon ******** ********* *** an ********* ** **** rule, *******. ***** ********* should******** ********* ** * ***** detector ****.
Medical ***** *****
******* ***** ****** ******** an *********** ******* *********, and **** ** ********* ** requested. ****** *************** ** medical ***** ***** ***:
- ** **** *********, ****** whether ***** ** ***** or ********
- ** ***** ** *****
***** ****** ****** ***** often ****** * ****** 24 **** ****, ** **** they *** ****** ** silence *** ****** ****** * medical *********. ***** ****** ** a **** **** ******* people ******* *** **** an ********* ** **** zone, ***** ****** *** keypad, ** ** ****** anybody *** ***** ** home **** ******* ** having * ******* ********* while ************** ********* ********* services.
****** ********** ******* *** medical ****** ***:
- ***** ******* ******* ** strategic ***** ****** * building
- ******** ******* **** ** a ******** ** ********
******** ********* ******** *******(****) *** ******* ***** allow *** *** *** communication ******* *** **** and * ********* ******* dispatcher. ***** *** ******* hardwired ******* **** * built ** *******. ********** commonly ****** ********** *** PERS **********, ** ******** to *** ******** ***** monitoring ******.
****** * ***** ******** and * ****** ****** outside * **** *** help ********* ********** ******** the ****** ** *** call ******, ********** ** areas ***** ***** ******* are **** ** **** from *** ******. *******, some ************* **** ***** control ********** **** ******* an ***** ***** ******* itself ************* (** "**** out") ***** * ***** time, ******** * *******, which *** *** ** enough **** *** ** ambulance ** *******. ** the ***** ************ *** a ** **** **** option **** ****** *** auxiliary ******, ********** *** choose ** **** * strobe ********* ** **** output, ******** **** *** standard **** ****** **** its ********* ******* *******.
Fire ***** *****
**** ***** ******** * report ** ***** ** fire, *** **** *** **** department ** *********. ****** *************** of **** ***** ***:
- ***********, ***** ***** * ******* signal ** ***** ** a ******* **** *** wire ** *** ******
- ****** ******, ***** ****** *** siren ** ****** * different ***** **** * burglary ****
- ** **** *********, ****** whether ***** ** ***** or ********
- ****** ** ********
********* **** ********** (*******) *** ***** and ****** *****, *** only ********* ** ** receives * ****** ****** from *** ***** ******** within * **** ***** period ** ****. ***** are ****** *** ******* down ** ***** ****** caused ** ******** **** the ***** *********.
******* ******** ****** * ** **** zone **** ****** ** bypassed, **** **** * normal fire ****, *** ***** only ****** *** ******, and *** *** ******.
****** ********** ******* *** fire ***** ***
- ***** *********
- ****** ******** *********
- **** *********
- ****-**-**** *********
- **********
- **** ********
***** ********* ******* **** ********** for ********* ***** ** triggering *******. **** ** because *** ****** ** the ********** ****** *** give ************ ** **** as ** *** **** of ******* **** **** be ******, *** **** kind ** ********* **** therefore ** ********. * sprinkler ********** **** ******* a **** ********* ******** than * ****** ******** activation, *** *******, *** this ****** ********** ** dispatch *** ********* ***** and **** ******* ** simply ******* * ****** company ** *********** *****. The ******* **** ***** could **** ** **** a ****.
Panic ***** *****
***** ******* ** **** up **************** ********* ** ******* alarms, *** ***** ******* station ** ******* ****** instead ** ** *********. Common *************** ** ***** zones:
- ** **** *********, ****** whether *** ***** ** armed ** ********
- ****** *********, ******* * signal ** ******* *** no **** ****** ** keypad *****
**** ***** ******** ** prefer * ******* *****, hoping ** ***** **** an ******** ******* ** waiting *** ****** ** respond. **** ***** **** in ********** ************* ***** ********* are ********* *** ** adversary ***** **** * clear **** ** ******. For *******, * ***** cashing ******** **** * cash **** ********* **** bulletproof ***** *** **** to ** **** ** instantly ******* * ***** and ****** ** ******** and ********* * *** level ****** **** ** an ********* **** * knife. **** ********** * ***** button ** * ** hour ******* ***** ****, a ******, ****** ***** button ** **** ********, in **** ** * genuine ******.
****** ********** ******* *** panic ****** ***:
- ******* ****** / **** Up
- ********* ******
- ******** ******
- ******** ******
- **** *****
- ***** *****
Burglar ***** *****
******* ***** ***** ******** the ******** ** ** intruder, *** ***** ******* station ** ******* ******. Common *************** ** ******** zones:
- ****** **** **** ***** is *****
- **** ****** ** *****
- *** ** ********
***** *************** ***** **** * ********* ****** going **** ***** *********. Typically, *** ******* **** to * ****** **** be ********** ** * delay ****. **** ****** a **** ** *** the ***** **** *** keypad *** **** *****, opening *** ******* *** door. *** ***** ***** are ****** **** *** moment *** ****** ** armed, *** **** ** into ***** ** ******, but *** **** *** be ****** ** ****** as **** ***** ** necessary ****** *** ********* period. *********, ******* **** zone **** ***** ******* countdown ****** ***** **** alarm *********, ******** *** user ** **** ** the ****** *** ***** the ****, ********* *** system.
**** ****** **** * predetermined ***** ****. ****** allow **** **** ** be **********.
***** ******* *** **** ** leave *** ******** ***** arming *** ***** ** *** disarming *** ***** ****** the *** ** *** delay is ** ********* ****** source ** ***** ******. Users ****** ** **** aware ** ******* *** long *** ***** **, and ********** ****** ******** entering *** **** *** then ******* ******** **** the ****.
************ ******* ** ***** zones, *** **** **** to******, ** ** ********* in ******** ****, *** delay ****. ** * keypad *** ** ** behind *** *****, *** should ** *** ** a ******** ** *** other. *** *******, ** a **** ***** **** to **** ** *** path ** * ****** detector ****** ******** *** keypad, *** ****** ******** should ** *** ** a ********. **** ***, there **** ** * delay ******* ******* ** front ** *** ****** detector *** *** ****** detector ***** **** ***** condition, *** **** ** the **** ** ***********. *********, *** ****** detector **** ** **** alarm ********* ***********.
********* ******** *** **** ****** type ** **** **** in * ******* *****. These ***** **** * signal *** ***** * siren *********** ** ********* when *** ***** ** armed *** *** ******* if *** ***** ** disarmed.
****** ********** ******* *** burglary ***** ***:
24 **** *** ******** *****
** **** *** ******** zones *** ***** ***** must ** ********* ************ but ***** ** *** require ********* ******** ** a ****** ****** ******. The **** ****** *********** for these ***** **************** *******.
********** *** ****** ** associate ***** ***** **** outputs ** *********, **** as strobes ** ******, *** often ***** ** *** require * ***** ** sound.
*** **** **** ********** with ***** ***** **** often ** ********* **** that ********** **** ***** types ** *****, *** will ****** ** *** nature ** *** ****. For *******, ** ***** user *** **** * temperature ****** ******* ****** a ****-** ******* ** call * ****** ****** or * ***** *******.
**** ** **** *** burglary ***** *** *** require ************ * ****** at ***, **** ** output. *** *******, ** alarm **** ***** **** to ******* * ***** when ******* * ****, which *** ** **** by ********** *** ********* output ** * *****. This **** ** *********** is **** ****** **** the **** ** *** devices **** ** *-**** compatible lightbulbs *** *-**** ******** sensors.
****** ********** ******* *** ** **** *** ******** zones***** ***:
- ***** *********** *******
- ************ *********** *******
- ******** *******
- ***** *******
**** **************
*** ***** ********* ******* offer * **** ******* of ****** *****, ******** ********** ** fine-tune *** ******** ** different *****. *** *******, a ***** ***** ***** trigger * **** ********* type ** ******** **** a ***** ******** *****.
******* ******* *********** **** public ****** *********** *** the *********** **** *******. Therefore, **** *********** ****** be ** ******** ** possible. ********** *** **** type ** *** ****. The ***** ** ******* out *** ******* ******* contract ********. **** * ******** is ****** ***, *** central ******* ****** *** the *********** **** *** customer's ****. ******** ** the ******** ** *** name *** *********** ** the ****, ***** **** instructions *** **** *** central ******* ****** ** if *** **** ****** send * ******. *********, this ******** * **** list ** ****** *** monitoring subscriber ***** ** ** notified, ***** **** * public ****** ****** ** private ***** ******* ** be *********.
***** ****** ** ***** descriptive ***** ******** ********. For *******, "****** **" ** less ********, *** **** less ****** ** * first *********, **** “******** Bathroom ******" **. ***** installers ****** *** *** think ** *** * first ********* ********* * **** for **** **** * central ******* ***** *** the ******** **** ******** ** scene, *** ****** *** alarm ** **** ****** as **** ** *** responder as ********.
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Comments (13)
Buddy Carmichael
For those of you who are not super-familiar with this material, I can tell you: this is a very good and accurate treatment of the subject.
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Undisclosed Integrator #1
Good overview of alarm systems. Only thing that i did not see was talk about zones in addressable systems. That would have been a nice addition.
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Mendy lewis
Also, zone doubling with 2 different resistors on same zone port/circuit
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Chris Powell
I agree, this is a very clear & thorough article. Thanks!
On the question of addressable points, they are more and more common on more sophisticated fire alarm system. But, for the same reasons (multiple points on a polling loop, etc), there are some pragmatic uses. A good example is individually identifying a long line of overhead doors along an extensive loading dock. There, a single 2-conductor wire can be run, and every door fixed with an addressable point. (run a 4c line, and you can mix powered devices like motion detectors.
Check out DSC's PowerSeries or MAXSYS panels and their PC5100 add-in addressable zone expanders and AML series of addressable devices.
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