Adapter for connecting a public address system to an analog extension of a telephone system.

• Adapter for announcements via the telephone system
• Ideal for waiting rooms, supermarkets, and shopping arcades
• Acoustic announcement of the announcement possible
• Easy connection of almost any telephone system to public address systems, e.g., ELA
• Operation and power supply via an analog extension of a telephone system from Auerswald and other manufacturers
• Programming of functions via telephone (MFV)
• Switching contact for changing the speaker zone of public address systems
• Additional switching options through a maximum of 6 optional a/b switching modules
• LED status indicator

With the a/b audio box, public address systems can be quickly and easily connected to almost any telephone system. The box is simply connected between an analog extension of a telephone system and the amplifier input, e.g., of an ELA system. When the a/b audio box is called, it automatically answers the call and establishes a connection to the connected announcement system. The integrated switching relay can be used to select the speaker zone of the public address system. If desired, the announcement is announced acoustically.