Cross zoning means programming two or more wireless sensors with the same ID number. This statement is:

Cross zoning means programming two or more wireless sensors with the same ID number. This statement is:

• A. True
• B. False
• C. It applies only to wired sensors
• D. It requires matching event codes across sensors

Answer: (B)

Cross zoning is a method that verifies a possible intrusion by requiring two independent sensors in different zones to trigger within a short time frame before an alarm is issued. This helps prevent false alarms from a single sensor or event. It does not involve programming multiple wireless sensors with the same ID. In fact, each wireless device should have a unique ID so the panel can distinguish which sensor fired. If two sensors shared the same ID, the panel couldn’t reliably tell them apart, defeating the purpose of cross zoning. So the statement is false.

Cross zoning is a method that verifies a possible intrusion by requiring two independent sensors in different zones to trigger within a short time frame before an alarm is issued. This helps prevent false alarms from a single sensor or event. It does not involve programming multiple wireless sensors with the same ID. In fact, each wireless device should have a unique ID so the panel can distinguish which sensor fired. If two sensors shared the same ID, the panel couldn’t reliably tell them apart, defeating the purpose of cross zoning. So the statement is false.