Activation of the button or switch shall initiate an audible tone and visible signal within the residential dwelling unit....
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809.5.5.1 Notification
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707.5 Speech Output
Audible tones shall be permitted instead of speech for visible output that is not displayed for security purposes, including but not limited to, asterisks representing personal identification...
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407.4.8.2 Audible Indicators
Audible indicators shall comply with 407.4.8.2....
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407.2.2.3 Audible Signals
Audible signals shall have a frequency of 1500 Hz maximum. Verbal annunciators shall have a frequency of 300 Hz minimum and 3000 Hz maximum....
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708.2 Audible and Visual Indicators
The system shall provide both audible and visual signals. Advisory 708.2 Audible and Visual Indicators. A light can be used to indicate visually that assistance is on the way....
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407.2.2.1 Visible and Audible Signals
A visible and audible signal shall be provided at each hoistway entrance to indicate which car is answering a call and the car's direction of travel....
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810.6 Rail Station Signs
Signs shall not be required to comply with 810.6.1 and 810.6.2 where audible signs are remotely transmitted to hand-held receivers, or are user- or proximity-actuated....
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807.3.1 Alarms
Where audible emergency alarm systems are provided to serve the occupants of cells, visible alarms complying with 702 shall be provided....
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215.1 General
Where fire alarm systems provide audible alarm coverage, alarms shall comply with 215....
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407.4.8 Car Position Indicators
Audible and visible car position indicators shall be provided in elevator cars....
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215.3 Employee Work Areas
Where employee work areas have audible alarm coverage, the wiring system shall be designed so that visible alarms complying with 702 can be integrated into the alarm system....
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407.4.8.2.1 Signal Type
EXCEPTION: For elevators other than destination-oriented 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...
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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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702.1 General
Fire alarm systems shall have permanently installed audible and visible alarms complying with NFPA 72 (1999 or 2002 edition) (incorporated by reference, see "Referenced Standards" in Chapter...
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215.2 Public and Common Use Areas
Alarms in public use areas and common use areas shall comply with 702.
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232.2.2 Cells with Communication Features
At least 2 percent, but no fewer than one, of the total number of general holding cells and general housing cells equipped with audible emergency alarm systems and permanently installed...
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707.5.2 Receipts
Machine location, date and time of transaction, customer account number, and the machine identifier shall not be required to be audible. 2....
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407.2.2.4 Differentiation
Each destination-oriented elevator in a bank of elevators shall have audible and visible means for differentiation....
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810.7 Public Address Systems
Where public address systems convey audible information to the public, the same or equivalent information shall be provided in a visual format....
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219.2 Required Systems
In each assembly area where audible communication is integral to the use of the space, an assistive listening system shall be provided....
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407.2.1.5 Signals
Destination-oriented elevators shall not be required to comply with 407.2.1.5 provided that visible and audible signals complying with 407.2.2 indicating which elevator car to enter are...
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105.2.5 NFPA
The standard specifies the characteristics of audible alarms, such as placement and sound levels....
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904.6 Security Glazing
Assistive listening devices complying with 706 can facilitate voice communication at counters or teller windows where there is security glazing which promotes distortion in audible information...
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407.3.4 Door and Signal Timing
For cars with in-car lanterns, T shall be permitted to begin when the signal is visible from the point 60 inches (1525 mm) directly in front of the farthest hall call button and the audible...