AVT919 A

The system is useful in a home where many families live. The bell has four independent trigger buttons. Each of them can be assigned a different sound - a message. Thanks to this, a person at the gate can call the household member that is visited directly.
The system from the ISD series was used to generate different sounds for individual channels. The memory has been divided into four banks, each of them allows you to save the sound with a length of up to 5 seconds.
The kit has been equipped with a built-in amplifier and voltage stabilizer, so it is necessary to connect the trigger buttons, the loudspeaker and the power supply for operation. The whole is easy to assemble and easy to start.

The device is especially recommended for people who like "playing" electronics and all beginners who want to build a simple but effective electronic system

Selected ring parameters:

• four independent sound channels
• length of audio messages - 20 s
• built-in microphone
• built-in power amplifier
• smooth volume control
• operating mode signaling - LED diode
• power supply - 9-12 Vdc
• printed circuit board and documentation included
  Detailed description in EP 2/06