Each has different advantages and disadvantages that can help determine which system is best for a given application. There are hard-wired systems and three types of wireless systems: induction loop, infrared, and FM radio transmission. Assistive listening systems are generally categorized by their mode of transmission. Assistive listening systems required in assembly areas shall comply with 706.Īdvisory 706.1 General. 706 Assistive Listening Systemsħ06.1 General.
#ADA COMPLIANT ASSISTIVE LISTENING DEVICES PLUS#
Minimum Number of Required Receivers Required to be Hearing-aid Compatibleģ5, plus 1 per 50 seats over 1000 seats 1ĥ5 plus 1 per 100 seats over 2000 seats 1ġ Or fraction thereof. Table 219.3 Receivers for Assistive Listening Systems ( text version) Capacity of Seating in Assembly Area Where all seats in an assembly area are served by an induction loop assistive listening system, the minimum number of receivers required by Table 219.3 to be hearing-aid compatible shall not be required to be provided. Where a building contains more than one assembly area and the assembly areas required to provide assistive listening systems are under one management, the total number of required receivers shall be permitted to be calculated according to the total number of seats in the assembly areas in the building provided that all receivers are usable with all systems.Ģ.
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