Security and Fire Alarm Systems Standards Examination: UL 639 Intrusion Detector
Requirements, UL 634 Connectors and Switches, UL 681 Burglar Alarm Installation Standards,
NFPA 70 National Electrical Code Compliance, NFPA 72 National Fire Alarm Code Protocols,
NFPA 101 Life Safety Code Regulations, ANSI/SIA CP-01 False Alarm Reduction Control Panel
Standard, ANSI/SIA DC-09 Internet Protocol Event Reporting Standard, ANSI/SIA OSIPS Digital
Video Interface Specifications, TIA/EIA-568 Structured Cabling Infrastructure, Authority
Having Jurisdiction Enforcement Authority, End-of-Line Resistor Series Wiring for Normally
Closed Contacts, End-of-Line Resistor Parallel Wiring for Normally Open Contacts, Passive
Infrared Motion Detection Technology, Ultrasonic Motion Detection Frequency Systems,
Microwave Motion Detection Doppler Technology, Dual-Technology Motion Detector False
Alarm Mitigation, Biased Magnetic Contact High-Security Sensors, Reed Switch Rhodium
Contact Protection, Anti-Lock Braking System Depressurization Procedures, RJ-31X Digital
Alarm Communicator Interface, RJ-45 Internet Communicator Networking Port Exam
Questions Verified and Provided with Complete A+ Graded Rationales Latest Updated 2026
UL Standard for intrusion detectors
639
UL Standard for connectors and switches
634
When installing NC door contacts (open on alarm), the EOL resistor should be placed
In series at device
When installing NO door contacts (short on alarm), the EOL resistor should be placed
,In parallel at device
A motion detector that uses a transmit frequency of 20 to 40 KHz is referred to as a:
Ultrasonic detector
A motion detector that uses a transmit frequency of 10-20 GHz is referred to as a:
Microwave detector
PIRs transmit on a frequency of 100-200 KHz. T or F
False
T or F? PIRs are most sensitive to motion toward and away from the detector.
False
T or F? Microwave detectors are most sensitive to motion toward and away from the detector.
True
Biased magnetic contacts are used for
High security applications
, T or F? Microwave detectors can penetrate glass, wood paneling and Sheetrock.
True
T or F? Dual technology motion detectors are used to reduce false alarms.
True
T or F? PIRs utilize the Doppler shift principle to detect motion.
False
Why are reed contacts are plated with rhodium or similar materials?
To prevent welding
What is the National Electric Code?
NFPA 70
What is the National Fire Alarm Code?
NFPA 72
Which UL standard covers the installation of burglar alarms?
Requirements, UL 634 Connectors and Switches, UL 681 Burglar Alarm Installation Standards,
NFPA 70 National Electrical Code Compliance, NFPA 72 National Fire Alarm Code Protocols,
NFPA 101 Life Safety Code Regulations, ANSI/SIA CP-01 False Alarm Reduction Control Panel
Standard, ANSI/SIA DC-09 Internet Protocol Event Reporting Standard, ANSI/SIA OSIPS Digital
Video Interface Specifications, TIA/EIA-568 Structured Cabling Infrastructure, Authority
Having Jurisdiction Enforcement Authority, End-of-Line Resistor Series Wiring for Normally
Closed Contacts, End-of-Line Resistor Parallel Wiring for Normally Open Contacts, Passive
Infrared Motion Detection Technology, Ultrasonic Motion Detection Frequency Systems,
Microwave Motion Detection Doppler Technology, Dual-Technology Motion Detector False
Alarm Mitigation, Biased Magnetic Contact High-Security Sensors, Reed Switch Rhodium
Contact Protection, Anti-Lock Braking System Depressurization Procedures, RJ-31X Digital
Alarm Communicator Interface, RJ-45 Internet Communicator Networking Port Exam
Questions Verified and Provided with Complete A+ Graded Rationales Latest Updated 2026
UL Standard for intrusion detectors
639
UL Standard for connectors and switches
634
When installing NC door contacts (open on alarm), the EOL resistor should be placed
In series at device
When installing NO door contacts (short on alarm), the EOL resistor should be placed
,In parallel at device
A motion detector that uses a transmit frequency of 20 to 40 KHz is referred to as a:
Ultrasonic detector
A motion detector that uses a transmit frequency of 10-20 GHz is referred to as a:
Microwave detector
PIRs transmit on a frequency of 100-200 KHz. T or F
False
T or F? PIRs are most sensitive to motion toward and away from the detector.
False
T or F? Microwave detectors are most sensitive to motion toward and away from the detector.
True
Biased magnetic contacts are used for
High security applications
, T or F? Microwave detectors can penetrate glass, wood paneling and Sheetrock.
True
T or F? Dual technology motion detectors are used to reduce false alarms.
True
T or F? PIRs utilize the Doppler shift principle to detect motion.
False
Why are reed contacts are plated with rhodium or similar materials?
To prevent welding
What is the National Electric Code?
NFPA 70
What is the National Fire Alarm Code?
NFPA 72
Which UL standard covers the installation of burglar alarms?
