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This is no question, I just measured the input impedance of the DIN 1 input and like to share my findings:

My example:

  • Hardware revision 1714
  • no-load voltage U0 = 2.705 V
  • input impedance R1 = 9.2 kΩ.

Maybe, some people can add these values for the other inputs or other hardware versions too? Please don't forget to mention the hardware version You have, You find it under RUT955 WebUI > Status section > Device, for instance http://192.168.1.1/cgi-bin/luci/admin/status/device.

Admins, would You please set these information into the wiki too?

Here's my test setup and the result:

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