Goto Section: 10.510 | 10.530 | Table of Contents
Revised as of October 1, 2009
Goto Year:2008 |
§ 10.520 Common Audio Attention Signal.
A Participating CMS Provider and equipment manufacturers may only
market devices for public use under part 10 that include an audio
attention signal that meets the requirements of this section.
(a) The audio attention signal must have a temporal pattern of one long
tone of two (2) seconds, followed by two short tones of one (1) second
each, with a half (0.5) second interval between each tone. The entire
sequence must be repeated twice with a half (0.5) second interval
between each repetition.
(b) For devices that have polyphonic capabilities, the audio attention
signal must consist of the fundamental frequencies of 853 Hz and 960 Hz
(c) For devices with only a monophonic capability, the audio attention
signal must be 960 Hz.
(d) The audio attention signal must be restricted to use for Alert
Messages under part 10.
(e) A device may include the capability to mute the audio attention
Goto Section: 10.510 | 10.530
Goto Year: 2008 |
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