ESA Certified Alarm Technician Practice Exam

What is the most common type of wiring used for alarm systems?

1. Coaxial wiring

2. Jacketed wiring

3. Twisted pair wiring

4. Conduit wiring

The correct answer is: Jacketed wiring

The most common type of wiring used for alarm systems is twisted pair wiring. This wiring consists of two conductors twisted together, which helps to reduce electromagnetic interference and improve signal integrity. Twisted pair wiring is favored in alarm systems due to its ability to carry low-voltage power and data signals over relatively long distances while maintaining a reliable connection. In the context of alarm systems, twisted pair wiring is particularly beneficial because it is lightweight, flexible, and easy to install. Furthermore, it is widely available and cost-effective, making it an ideal choice for various applications, including intrusion detection, fire alarms, and monitoring systems. Its proven track record in the industry and insulation that protects it from environmental factors also contribute to its prevalent use. While coaxial wiring may be used for video surveillance systems, and jacketed wiring can refer to a broader range of cable types, they are not specifically designed for the requirements of alarm systems in the same way that twisted pair wiring is. Conduit wiring, although important for protecting electrical systems, is not a type of cable itself but a protective pathway. Thus, twisted pair wiring stands out as the most suitable choice for alarm applications.