Audible indicators shall comply with Section 11B-407.4.8.2....
Search Results "Audible Indicator"
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11B-407.4.8.2 Audible indicators
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11B-407.4.8.2.1 Signal type
Exception: For elevators that have a rated speed of 200 feet per minute (1 m/s) or less, a non-verbal audible signal with a frequency of 1500 Hz maximum which sounds as the car passes or...
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11B-407.4.8.2.2 Signal level
The verbal annunciator shall be 10 dB minimum above ambient, but shall not exceed 80 dB, measured at the annunciator.
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11B-411.4.8.2 Audible indicators
Audible indicators shall comply with Section 11B-411.4.8.2....
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11B-708.2 Audible and visual indicators
The system shall provide both audible and visual signals. [2010 ADAS] Advisory 708.2 Audible and Visual Indicators. ...