Which code denotes 24 volt AC flashing light energy?

• A. CBX24
• B. CX
• C. C24
• D. GD

Answer: (A)

Understanding how signaling codes convey voltage and flashing behavior helps explain why CBX24 is the right designation. In this coding system, the number part identifies the voltage level, so 24 tells you the device runs at 24 volts. The letter X is used to indicate a flashing light function, meaning the signal operates intermittently rather than staying steady. The initial letters (CB) designate the category of signaling equipment and its energy type, aligning with AC-powered flashing lighting devices. So CBX24 specifically communicates a 24-volt AC flashing light energy source. The other codes either omit the voltage detail, omit the flashing indicator, or point to a different energy category, so they don’t match the requirement as precisely.