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CRIME PREVENTION PART I SECURITY ALARMS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2010)

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Presentation on theme: "CRIME PREVENTION PART I SECURITY ALARMS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2010)"— Presentation transcript:

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2 CRIME PREVENTION PART I SECURITY ALARMS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2010)

3 OBJECTIVES Learning Objective: The student will be able to identify the three basic components of an alarm system. Learning Objective: The student will be able to define and describe the proper use of the following alarm sensors; space or motion detectors, microwave, infrared, ultrasonic, magnetic switches, glass breakage and impact Learning Objective: The student will be able to describe the basic circuitry of an alarm system. Learning Objective: The student will be able to define local annunciator and remote annunciator. ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

4 OBJECTIVES Learning Objective: The student will be able to define the following terms: multiplexing, microwave transmission and dialers Learning Objective: The student will be able to explain the parts of an alarm control unit. Learning Objective: The student will be able to define the requirements of an alarm system. Learning Objective: The student will be able to explain the common problems associated with alarm systems, contributing factors to those problems and recommendation to solve problems identified. ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

5 Consider what you are protecting life or $$$$$ - value Crime prevention geese—390 BC Romans 1900's fire alarms—insurance companies had own fire companies respond to their customers only — term fire company ALARM HISTORY

6 ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

7 ALARM AS A DETERRANT physical A physical deterrent by the noise and attention psychological A psychological deterrent if a perpetrator knows or beliefs a building has an alarm system ALARM HISTORY ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

8 WHY PEOPLE NEED AN ALARM SYSTEM

9 McCULLOUGH LOOP McCullough Loop basically a single telephone line that is linked from site to site with a transmitter at each site. When the alarm is tripped at that site, the transmitter signals a series of signals (similar to a telegraph key). ALARM HISTORY ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

10 80 percent 80 percent of existing alarms today are still on existing phone lines Microwave Microwave and satellite—future of business ALARM HISTORY ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

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12 1.Control Unit (Brain) Power supply Circuitry Sensory controls ALARM SYSTEM Three main components of an alarm ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

13 ALARM SYSTEM POWER SUPPLY ALARM CIRCUIT BOARD ALARM COMPONENTS - SENSORS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

14 2.Annunciation System LocalBellLightSiren Remote monitoring station ALARM SYSTEM Three main components of an alarm ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

15 EXTERIORSIREN WITH WITHFLASHINGLIGHT ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

16 3.Sensors & Detectors Touch or feel (Contact type) Audio – hear (Noise) Sight (PIR) ALARM SYSTEM Three main components of an alarm ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

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18 proper Key to reliable alarm system is proper application and use (informed users) of proper equipment ALARM SYSTEM ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

19 1.Control or brain 2.Annunciation reporting 2.Annunciation or reporting device — siren, bell or light detector 3.Sensors or detector — see, hear & feel ALARM SYSTEM main components Three main components of an alarm ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

20 transmitting Receiving, transmitting, interpreting messages parts Links all parts of the system supply Power supply control Access control Sensitivity Sensitivity adjustments ALARM SYSTEM CONTROL UNIT ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

21 delay Time delay tamper Anti-tamper devices Sensor control transmission Signal transmission to remote station Battery Battery backup ALARM SYSTEM CONTROL UNIT – Cont’d: ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

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23 Imitating mechanically, electrically, electronically human senses magnetic mercury vibration Touch or feel—magnetic switch, spring switch, mercury switch, pressure sensitive mat, foil, wire lacing, trip wire, vibration detection (seismic) ALARM SYSTEM SENSORS & DETECTORS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

24 ultrasonic Imitating Hearing—ultrasonic (Doppler) audio senses photoelectric CCTV Sight—photoelectric beams, light intensity changes, microwave, CCTV ALARM SYSTEM SENSORS & DETECTORS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

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26 Intrusion Intrusion Sensing Devices Hardwire switches Magnetic switches Plunger switches Metal foil switch Glass breakage - Vibration Mercury switches - tilt windows or overhead doors, screen or grill wires ALARM SYSTEM SENSORS & DETECTORS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

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29 Motion Space or Motion detectors invisible refract off detected objects Photoelectric — invisible beam sender receiver or combination of both bounce or refract off detected objects detect Ultrasonic — Doppler shift — detect motion radar, sonar ALARM SYSTEM SENSORS & DETECTORS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

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31 Motion Space or Motion detectors Microwavemotion Microwave — detect motion from interruption of waves ALARM SYSTEM SENSORS & DETECTORS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

32 Motion Space or Motion detectors ambient Passive Infrared (PIR) — invisible light — detects ambient temperature changes sunlight Avoid direct sunlight microwaveultrasonic Used a lot in combination with microwave and ultrasonic best for reducing false alarms ALARM SYSTEM SENSORS & DETECTORS

33 ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

34 AudioImpactFrequency ALARM SYSTEM SENSORS & DETECTORS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

35 sensors Today many sensors are used in tandem to lower potential for false alarms—example impact and glass breakage. ALARM SYSTEM SENSORS & DETECTORS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

36 Underwriters Laboratories Inc. (UL) is a U.S. privately owned and operated, independent, third party product safety testing and certification organization. Based in Northbrook, Illinois, UL develops standards and test procedures for products, materials, components, assemblies, tools and equipment, chiefly dealing with product safety. UNDERWRITER LABRATORIES ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

37 electronic Property is equipped with an electronic burglar alarm that meets the following requirements structure All exterior structure openings are contacted system The system includes an interior and exterior siren ALARM SYSTEM MINIMUM REQUIREMENTS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

38 Continued: U.L. All equipment is U.L. approved and is monitored by a U.L. approved central station alarm permit Appropriate alarm permit (if applicable based on applicable statute and/or ordinance) ALARM SYSTEM MINIMUM REQUIREMENTS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

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41 delay Time delay tamper Anti-tamper devices Sensor control transmission Signal transmission to remote station Battery Battery backup ALARM SYSTEM CONTROL UNIT – Cont’d: ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

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43 TAKE A 15-Minute BREAK

44 loop complete In a normally open loop there is not a complete loop from one side of the power source to the other ALARM SYSTEM Basic Alarm Circuitry: ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

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46 closed switch activated moved closedloop In order for the loop to become a closed loop, the switch (or sensor) needs to be activated and moved to the closed position. When this switch is closed, we have a complete or closed loop ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

47 electronic signal alarm activates When the loop is closed, electronic pulse flows from one side of the control unit through the loop to the other side. With signal now flowing through the loop, the relay is energized and the alarm activates ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

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49 loop open unsupervised The biggest problem with this type of loop is any part of the loop may be cut without detection. For this reason, a normally open loop is referred to as unsupervised and is not commonly used by itself in alarm systems. ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

50 pulses alarm switch This configuration allows pulses to flow in the loop and keeps the relay energized. In this loop, as long as the relay is energized, there is no alarm. However, when the relay is de-energized, by activating the switch, the alarm alerts ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

51 sensors protected open circuit If additional switches sensors are added to the normally closed protected loop, they must be inserted in such a way that opening any one of them causes an open circuit. To provide this feature the switches are hooked in series to one another (i.e., one right after another). ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

52 supervised activates A normally closed loop is referred to as a supervised circuit since cutting any of the wires in the protective circuit activates an alarm condition. ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

53 supervised activates A normally closed loop is referred to as a supervised circuit since cutting any of the wires in the protective circuit activates an alarm condition. ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

54 switches shorted device shuntswitch A basic weakness in a normally closed system is the switches may be "jumped out" or shorted across without initiating an alarm when that particular switch is activated. This characteristic of the closed loop is used when installing a device known as a shunt lock or shunt switch. ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

55 Shunt switch diagram

56 shuntbypass jumper shuntselected detector(s The shunt switch is used to bypass a selected detector or zone, for instance, on the front door, so the premise is entered by authorized persons without sounding an alarm. By turning the shunt lock to the unlocked position a jumper or shunt is created around the selected detector(s). ALARM SYSTEM Basic Circuitry – Cont’d :

57 ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

58 supervised activates A normally closed loop is referred to as a supervised circuit since cutting any of the wires in the protective circuit activates an alarm condition. ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

59 openclosed monitored by computer checking sensor Supervised Loop can be combination of open and closed loops monitored by computer that is constantly checking each individual sensor every few seconds. Cutting or splicing wires will not disarm the supervised loop ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

60 Shunt Switch is used to Remember that a Shunt Switch is used to bypass selected zone or detector for closed alarm system; to allow entry into a zone without setting off the alarm. ALARM SYSTEM Basic Circuitry – Cont’d : ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

61 WHO TO CALL WITH QUESTIONS

62 Most use existing phone lines. Direct connect Multiplexing—party lines many users instead of dedicated phone line or radio frequency broadcasting of data REMOTE ALARM SYSTEM TRANSMISSION CIRCUITS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

63 Dialers must have override capability as (the same as) a priority (911) call to Sheriff’s Office or Police Department. REMOTE ALARM SYSTEM TRANSMISSION CIRCUITS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

64 SecurityAlarmRemoteMonitoring

65 Common problems User error or negligence 60% by far most common cause of false security alarms 25 25 percent poor installation or defective equipment Ten Ten percent use for purposes other than for which it was intended ALARM SYSTEM FALSE ALARMS FALSE ALARMS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

66 Loosecontacts Loose contacts loose or bad wiring Building vibration battery replacement Lack of consistent Ordinances Lack of consistent Ordinances fees and fines ALARM SYSTEM FALSE ALARMS FALSE ALARMS ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

67 There is continually new alarm technology within the security industry. The following is a brief slide show to allow you to see some of the new alarm technology available ALARM SYSTEM NEW TECHNOLOGY NEW TECHNOLOGY ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

68 SecurityAlarmLamp

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70 NewMacintoshwith built – in alarm ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

71 SOURCES Handbook of Loss Prevention and Crime Prevention (Fourth Edition) Lawrence J. Fennelly. ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

72 DEFINE & PROCESS 1.Identify the three basic components of an alarm system. 2.Define and describe the proper use of the following alarm sensors; space or motion detectors, microwave, infrared, ultrasonic, magnetic switches, glass breakage and impact 3.Describe the basic circuitry of an alarm system. 4.Explain local annunciator and remote annunciator. ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

73 DEFINE & PROCESS 5.Define and explain the following terms: multiplexing, microwave transmission and dialers 6.Explain the parts of an alarm control unit. 7.Define the requirements of an alarm system. 8.Explain the common problems associated with alarm systems, contributing factors to those problems and recommendation to solve problems identified. ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

74 QUESTIONS

75 Contact Information 1.INSTITUTE for CRIMINAL JUSTICE STUDIES 2.350 N. Guadalupe, Suite 140, PMB 164 3.San Marcos, Texas 78666. 512-245-6232 www.criminaljusticestudies.com 1.TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

76 ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009) TEAM VISIT

77 HOME DEPOT – LOWE’S VISIT TEAM ASSIGNMENTS TEAM I - LOCKS TEAM II – DOORS TEAM III – WINDOWS TEAM IV – LIGHTING TEAM V – SECURITY ALARMS TEAM VI – FENCING ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

78 HOME DEPOT – LOWE’S VISIT INSTRUCTIONS Each team will not spend more than 10-minutes per area Teams will rotate every 10-minutes Make brief (bullet) notes of your observations on your assigned area. Prepare one combined Team report ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)

79 SEE YOU ALL TOMORROW 8:00 AM (SHARP) WEDNESDAY MORNING ©TCLEOSE Course #2101 Crime Prevention Part I Curriculum is the intellectual property of ICJS (2009)


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