When AHJ approves, what is the highest priority sequence for a hold-up alarm?

• A. Alarm, Hold-Up, Supervisory, Trouble
• B. Hold-Up, Alarm, Supervisory, Trouble
• C. Alarm, Hold-Up, Supervisory, Trouble
• D. Supervisory, Alarm, Hold-Up, Trouble

Answer: (C)

The main idea is how signals are prioritized in a combined life-safety and security alarm system. The most urgent condition is a real alarm indicating a fire or life-threatening event, so that takes the top priority. After that, a hold-up alarm is given the next priority because it signals a potential security threat (like a robbery) and needs rapid notification to responders, but it isn’t the same life-threatening event as a going fire. Supervisory signals come next; they indicate an abnormal condition that could impair system reliability (such as a monitored valve or a device requiring attention). The lowest priority is trouble, which means faults or communication issues that do not constitute an immediate emergency but do need service.

So, with AHJ approval, the intended sequence is: Alarm first, then Hold-Up, then Supervisory, then Trouble. This arrangement ensures the most urgent situations are communicated first, while still addressing security and maintenance needs in an appropriate order.