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123 Cards in this Set
- Front
- Back
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What is the purpose of an End Of Line device
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a resistor, capacitor or diode placed at the electrical end of a circuit to control the amount or direction of current flow
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where is a kiss off tone generated from
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a signal transmitted from the central station receiver to the security system indicating the alarm signal has been received. when the alarm system receives this signal it will terminate the transmission
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define time zone
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a feature of an electronic access control system which allows access only within established times
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what is the purpose of a two-way voice system
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a system of speakers/microphones located throughout the protected premises that is connected to the alarm controller. this system enables the central station operator to listen - in to the sounds of the protected premises and to talk with the occupants of the premises
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what is another name for a duress code
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predetermined special code
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What is a credential
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a form of identification that determines who is authorized for access. in access control, a credential can be an ID number entered on a keypad, plastic cards, electronic etc
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Why was the CP-01 standard development
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a ANSI/SIA standard developed to prevent false alarms
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what is the difference between a fail-safe lock and fail-secure lock
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fail safe - a locking device that unlocks when there is a power or equipment failure
fail secure - a locking device that remains locked when there is a power or equipment failure |
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define a 24-hour zone
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a type of zone that monitors continuously for 24 hours a day, 7 days a week. under normal operating conditions, it is not turned off
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what does an addressable device have to help pinpoint its exact location when there is trouble
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a device which has a unique ID code assigned to it. this can pinpoint the exact location of a device when there is an alarm or trouble indicator
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what is a central station
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is the monitoring center that is monitored 24 hours, 7 days a week to receive the signals transmitted by security systems
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what is another name for facility code
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site code
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which technologies do optical turnstiles use
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light beams or passive infrared (PIR) sensors to count the number of people that pass through a given point or to restrict access to secured areas
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what is the purpose of the anti-passback feature
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a security feature that usually employs the use of credentials readers on each side of an entrance or exit used to protect both sides
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define combination detector
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use two different technologies to detect an intruder . each technology has certain evenly that cause an alarm
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name three devices which would be considered input devices
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card reader, door contacts, glass break detectors and motion detectors
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give an example where a normally closed contact would be used
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doors and windows
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list three devices which are normally open in a non-alarm state
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- temp sensor
- panic button - smoke detector - tamper switch |
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a restore resets an alarm to a __ condition
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normal
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define arm away
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turn the security system on in the away mode. the away mode will turn on all exterior and interior protection devices, while still allowing the exit and entrance delay times
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define biometrics
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an automated method used to identify or authenticate the identity of a living person based on certain physiological or behavioral characteristics. these characteristics may include facial characteristics, retinal and iris scans, voice patterns, hand geometry and fingerprints
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how does a passive infrared detector sense intrusion
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device that monitors the environment and trips when the radiant heat energy signature (pattern) of an intruder is detected
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define zone
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the division of a security system into smaller segments
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when an alarm system is armed in the Arm Stay mode, how is the system affected
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the stay mode will turn on all exterior protection devices only, while still allowing the exit and entrance delay time
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what is the difference between an Alpha Numeric display and a custom Alpha Numeric display
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- Alpha numeric display - uses words as well as digits to display the status of the system
- custom alpha numeric display - same as alpha numeric display but an installer can customize the display to read anything he/she chooses more expensive |
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what type of crime increased in the 90's
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burglaries may have decreased but violent crimes were on the increase
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Motion detectors should be placed in locations where there is a __ of an intruder crossing
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high probability
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An alarm which is elf - contained and does not require off premise monitoring would be considered what type of alarm system
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Local Alarm System
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What are the three areas of protection a security system monitors
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- perimeter or point of entry protection
- specific area protection - spot protection |
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what are some of the typical components of a security
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- control panel
- keypad - door contact - window contact - Glass break detector |
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what is the purpose of a siren
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the purpose of any siren is to alert you, or the criminal, that the alarm system has been triggered
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what is the definition of household burglary
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is unlawful or forcible entry or attempted entry of a residence
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what are two things an installer must keep in mind when installing a glass break detector
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the detector must be in a direct line of site of the window being protected and also heavy drapes may affect the performances of the detector
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what is the average estimated loss per residential burglary
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$1,350
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security systems can be broken down into three operational categories. what are they?
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- local alarm system
- supervisory alarm system - central station alarm system |
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commercial security system and residential security systems typically use the same components. what it the difference between the two systems
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the way the system would be programmed and the feature which are used
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what is the preferred installation method when installing window contacts
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is surface mounting on most types of windows
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why are homes more vulnerable to burglary now than they were in the past
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most people are away from their homes during the day
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when installing a security system, where should the control panel be located
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should be located in an area where it can be protected
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a security system is intended to
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to determine burglary and limit loss of personal property
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what is the function of a RJ31X jack
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is the device which allows the security system to seize the telephone lines when the alarm is triggered. the RJ31X jack must be first in line or it will not seize the lines property
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According to FBI statistics, what percent of burglars enter through the front door
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34 percent
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what is the advantage of a central station alarm system
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that 24 hour protection can be provided to business of facilities which normally do not have someone at the site 24 hours a day
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explain point of entry protection
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is a type of perimeter protection where emphasis is placed on these specific points which might allow entry or exit from a secure area
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Explain specific area protection
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is protection provided to one specific location. this may be an area where sensitive documents are stored or where valuable are kept
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explain spot protection
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is protection provided to one particular specific object such as a safe. with spot protection the internet is to prevent that one object
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according to FBI statistics a burglar breaks into a house every __ seconds
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11
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in a supervisory alarm system, a __ is established for the purpose of providing constant monitoring of alarm status
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central monitoring point
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what is the purpose of a dual-technology motion detector
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have both technologies built into one unit. these are designed to avoid false alarms by requiring both technologies to sense motion before triggering
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an optional rare magnet is designed for use where
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in metal entry/ exit doors with a channel in the top of the door. the magnet climate the need to cut a mounting hole in the hole door channel
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when installing a 2302 series curtain door contact,there is a specific method for the installation of the magnet. explain
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drill two 0.156'' dia. holes though the mounting holes in the magnet housing fasten down with two # 8 self tapping screws (providing).for faster installation remove the magnet clean the door surface with an alcohol pad. dry the area off and mount with the strips of double stick adhesive tape mount the tape to the magnet housing first and then attach the housing to the door. pressing firmly to ensure proper adhesive
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what application would an electrical worker use a sentrol1035 series switch
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use to protect doors and windows where drilling holes is undesirable, such as thin-frame windows or on sliding glass door
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what is the gap distance of a 1087TW switch
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up to 1 1/2
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a sentrol 1045T switch is available in what colors
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natural, grey or mahogany brown
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a sentrol 2500 series switch is ideal for what application
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installed in commercial and industrial environments where a rugged sealed unit is required. it is ideal for metal doors, overhead doors, fences and gates
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explain the purpose of wings on a sentrol 1275W switch
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is ideal for new construction applications. where wood swell poses a potential threat to the contact housing. the "wing" on the 1275 series flex to hold the contact securely in place as the wood expands and contracts. the 1" contact fits most recessed applications
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why would an electrical worker choose to use a mini-max magnet when installing a magnet contact on a window
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mini-max magnets deliver strong protection in a low profile designs virtually eliminating the risk of window damage during installation. just 1/8" thick, the magnets surface mount easily with glue, double-stick tape or stainless steel screws
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the 2800T series magnet contacts is approved for what environments
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class I group B
class III |
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the sentrol 3005 contact can be used to protect doors and windows. what other applications can the 3005 contact be used
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- antiques
- rare books - works of art |
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what feature of a sentrol 1045 magnet contact helps prevent false alarms
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a wider break distance helps prevent false alarms caused by loose fitting doors
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the sentrol 3010 series switches are available in two styles. what are they
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- 1/2 " dia recessed
- clip mount |
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what application would an electrical workers use a 1125 series "stubby" magnetic contact
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the 1125 series short length makes it ideal for thin framed windows and doors where long units cannot be used
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what are the applications for a 3010 series switch
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- plunger switch
- tamper switch |
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the 1047H magnetic contact requires the labels on the contact and the magnet to be aligned, explain why
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the contact is polarity sensitive
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what diameter hole must be drilled for a 1075 series switch
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3/8"
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the sentrol 3027 switch has three leads, what are they used for
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- black : common
- white : closed loop (NO) - red : open loop (NC) |
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what depth hole is recommended for the contact on the 1125 series magnet contacts
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3/4"
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what are some of the applications where an electrical worker could use a 2100 series magnetic contact
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2100 series contacts extend monitored security protection to items such as snowmobiles, lawn garden equipment, boats, trailers, bicycles, and motorcycle magna pull pull-apart cords can also be used to secure fence gates, overhead doors, and construction equipment
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how does a 2300 series contact help prevent service calls
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the unique design albris the contact to be mounted directly to the door channel, with the magnet mounted vertically on the door-off the floor and out of harms way. this eliminates secure calls and false alarms that occur when typical floor mount contacts become damage or as the door becomes misaligned with normal usage
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the two mounting holes on a 1072 series magnetic contact provide additional strength to prevent what
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the content and magnet from becoming dislodged due to environmental changes
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what is the gap distance on a 2302 series magnetic contact
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up to 3"
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what is the difference between a 1065 and a 1075 magnetic contact
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the1065 is an extra wide gap version
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the 2700 series magnetic contact has been effectively used in high security locations, name three
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- airports
- biotechnology labs and others - ware houses - manufacturing plants - jewelry stores - banks - data processing centers |
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what size wire will a 1075T terminal accept
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14 to 22 gauge
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DPDT switches are available in __
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- recessed
- steel door - surface and industrial outdoor model |
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what is the gap distance for magnetic contacts
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ratings are minimal and may vary +- 20% ratings distance for switch or 1.1 - 1.5 * the make distance
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what is the temperature range allowable for the sentrol magnetic contacts
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40 degrees Fahrenheit to 150 degrees Fahrenheit
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list the applications for sentrol's surface mounted contacts
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- steel fire doors
- safe - fire cabinets - trucks - roll - up garage doors |
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what is the recommended separation for the installation of surface - mounted contacts
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no more separation than about 50% of the pull in distance
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reverse voltage spikes can cause contacts to fuse together. what will temporarily take care of this problem
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tapping on the switch
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how do you protect against voltage kicks or transients from DC circuits
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Adding a diode across the relay coil
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list the different methods for protecting sliding aluminum doors with magnetic switches
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- parallel recess mount
- perpendicular recess mount - parallel recess mount with adhesive surface mount switch - screw down surface mount do not drill into glass - adhesive surface mount |
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many magnetic switches cannot withstand the pressure of green wood in new construction. why?
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green wood dries and shrinks
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how can you increase the gap distance of a recessed switch in a door when you do not have a wide gap switch
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by placing two magnets side-by-side mount magnets with the like poles in the same direction
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where is the best location when installing a silent panic switch in a walk-in freezer
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at some point between the floor and 4" below the door knob. the switch should be reached by someone lying on the floor
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explain how the bill trap operates
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this device holds paper currency between a magnetized clip and a back plate that contains magnetic clip contacts mount the bill trap in a drawer and wire it to an open door or closed loop to activate the alarm circuit when currency is removed
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some revolving doors incorporate an electromagnetic break-away device, usually located in the drum. why should you try to locate the magnetic contact as far away as possible from this device
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to prevent adverse effects to the magnet
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what sentrol magnetic contacts are specifically designed for panel or sectional overhead door
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the 2315A, 2317A and, 2325A contacts are specifically designed for panel or sectional overhead doors
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why are concealed surface mount contacts preferred over recessed mount contacts for protecting pella casement or awning windows
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because the construction of these windows make recessed mounting difficult without breaking the glass
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applications on steel do not __, but they do reduce the magnetic field
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drain the magnet
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when installing a recessed contact under a threshold, why must an electrical worker use a wide gap switch
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because of the distance between the magnet and the switch
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when installing a roller plunger switch on a door, where must it be mounted
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on the hinge side of the door below the lowest hinge
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residential customers will typically be more concerned with
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Appearance
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when protecting an attic vent, an electrical worker could use a
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barrier bar
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what magnetic contact could be used to protect multiple guns in a gun rack
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magna pull
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when installing recessed switches in steel doors, an electrical worker should use a recessed switch which provides
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Adequate insulation
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list the recommended switches an electrical worker should use to protect a painting or other hanging art
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1- 1035W
2- 1145W 3- 1275W |
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when installing a magnetic contact on a boat, why should an electrical worker check the compass before and after installing the magnetic contact
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magnets affect compass reaping
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how would an electrical worker rest the LED circuit on a silent panic switch
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interrupt power to the LED circuit
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what is the purpose of a PIR
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a PIR is designed to trigger an alarm when it detects the image of an intruder. A PIR must be an intruder from other sources of infrared energy
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what type of lens pattern is needed on a PIR to protect areas under skylights or near roof entries
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curtain lens
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what type of back box is needed for mounting a flush mounting a flush-mount PIR
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standard single gang electrical box
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why is a PIR motion detector called "passive"
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the PIR does not emit a beam
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what percentage of false alarms is caused by the homeowner
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90%
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what types of sources may cause false alarms for PIR's
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- forced air duct
- space heaters - direct sunlight - reflected sunlight - bright white light - pets - rodents |
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list three primary components of PIR
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- mirrors or lens
- pyro electric sensors - signal processing curcuit |
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what type of lens would be used to look down the aisle of a warehouse, to look up or down a stair well, or for internal perimeter protection in a room with several windows
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long rang lens
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PIR can be used to control a wide range of __ devices such as entry and exit doors, CCTV cameras, and recorded messages
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peripheral
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what are the two traditional forms of motion sensing technology
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- PIR
- microwave |
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a PIR detector requires a __ degree F change to triip
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3.6
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a precision line microwave detector is adjustable in increments of
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9 or 10 feet
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what is the range af an AP 750 motion sensor
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50 feet
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dual -technology sensors require both a __ signal and a mechanical __ to recognize breaking glass
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- acoustic
- vibrator |
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which type of glass shatters into thousands of tiny pieces
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tempered glass
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shock sensors will detect __ but will reduce sensor range up to 50%
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plexi glass
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what type of glass has a thin film of plastic sandwiched between two panes of glass
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laminated glass
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acoustic sensors can only detect glass which is in __ with the sensor
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direct line of sight
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__ glass breaks into large jagged pieces
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plate
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what frequencies travel through the breaking glass, the surrounding window frame and the surrounding walls and ceilings
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shock frequencies
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the shatterpro III detects in a full __ degree coverage pattern, with a __ radius from sensor to glass
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360 / 25 feet
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wired glass break similar to
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plate glass
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for 24- hour loop protection where the sensors are armed continuously all day and all night, it is best to use
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shock sensors
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acoustic sensors detect glass break frequencies, they cannot detect __
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plexi glass
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