SIP IP electronic board

External electric bell

Today we received this question:

“I am interested in the sip system for installing at home. I want to add to the system an additional electric bell. Is this possible to do? Are all GIPO ports used? Can a free GIPO port used to switch on e.g. IR LED?”

Gate announcement for external bellYes we have the possibility to define the second output with the function Gate 2 Announcement that make it on ON when calling.

In addition we can use one of the DIODE (DIODE0, DIODE1, DIODE2)outputs to connect LEDs for on the three following modes:

  • enlightenment during the SIP session (from call to door opening or end of conversation)
  • conversation (the conversation begins)
  • door open

The following terminals block details show how to connect:

SIP connections


5 thoughts on “External electric bell

  1. philippe

    Yes the board has been conceived to be used with the Raspberry Pi B+ or Raspberry Pi 2B. It includes a lot of details for a powerful door station with some options on RS-485 or on the USB of the Raspberry.

  2. matt

    Hi I was wondering if you are able to share the chip that you used to connect the microphone to the rpi? Is this done over the gpio? thanks for your help 🙂

    1. admin Post author

      It is possible to share it by using the USB but I need to check two points in order to give you a more accurate answer:
      1/ how you can activate it for a permanent use (in the regular intercom use we have a mute function and I need to be sure it will not interfere)
      2/ we have an amplifier on the IO board and I think it is ok but I will ask the hardware engineer.


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