Audio box a/b 16-60V DC - Answering machine 90698

Audio box a/b 16-60V DC - Answering machine 90698 – Auerswald – 4019377906989: Audio box a/b 16-60V DC 90698 remotely queryable, color blue, With the a/b audio box, public address systems can be coupled quickly and easily with almost any telephone system. To do this, the box is simply connected between an analogue extension of a telephone system and the amplifier input, e.g. B. an ELA system switched. If the a/b audio box is called, it automatically accepts the call and establishes a connection to the announcement system connected to it. The integrated switching relay can be used to select the loudspeaker zone of the sound system. If desired, the announcement can be announced acoustically. The a/b audio box is suitable for amplifiers and ELA systems with an AF input (300 mVeff / 600 ohms).