Elcom i2 Bus (BVM-100)

:slight_smile:

Hi Jens, did you manage to connect?
I’m having the same device and struggling to get the opener integrated.

Many thanks
Steffen

Anything new Dennis? :wink:

:sweat_smile:öhm…

https://developer.nuki.io/t/elcom-bft-210-nuki-opener-working-with-hardware-mod/18395

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haha wasn’t expecting this :smiley: thanks for the in depth analysis. I will move to a new flat in a month and I think there was a BFT-210 in place - so big thanks in advance!

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you´re welcome :slight_smile: hit me up if it is so and you need the pcb

Hi guys,

Just to be sure: does the BVM-100 works with the RSR-200?

Thanks!

Hi! I know this thread is quite old, but I just can’t get it working and maybe you are able to help… I’ve got the same setup with bvm 100 rsr 200 and 114. The relay to open the door is working fine and you can open the door through the app. The rsr200 detects the ring as the led lights up. But somehow nuki just doesn’t recognise the ring…. Did you only connect the green cable to function one of rsr200? No bus voltage or ground connection? How did you configure the opener in the app? I used generic with now ring cable…. But doesn’t work….

Is the 114 actually really necessary? I just have the RSR200. Actually I’m wondering where to put GND and the open door signal. There are no points of contact.
Would be happy about a picture, thanks!

Hello Mathias,

I also have a BVM-280. Can you make a picture of your wiring? Did you change anything from Ben’s setup? Did the RED114Y fit inside the BVM-280 case okay? Any other tips? I’d really like to get this to work for me. Thank you in advance.

Denis

Thank you @Ben!

With your picture and these comments I was able to connect my Elcom BVM-280 to my Nuki Opener. Everything works including “Ring to Open”. I just added the Elcom RED114Y as you instructed and then wired in the Nuki Opener. After that I was able to configure the Nuki Opener using the Nuki app and set the configuration to “Generic/Analog".

Only difference is that I inserted a bridge wire from “K2" to “a" on my BVM-280, and connected the Nuki Opener yellow wire to K1 on my BVM-280. Works great.

Did anyone get the Nuki Opener working with the Elcom BVF-210WS? Steven posted pictures and asked the question back in January but I couldn’t find a reply in the thread. I have the same intercom in my rental flat and would love to get the Opener connected. Thanks very much for your help, Alex.

Hey!
Last week our intercom system was upgraded. The new system is ELCOM digital i2 bus (Elcom BHT-200). According to the electrician, only such systems are likely to be installed. I will try using Hardware Mod from this thread to connect Nuki Opener. 3 years ago it was said that you couldn’t handle FM modulated systems yet. Will there be a solution in the near future?

I guess with this two manuals you can compare and map similar functions between the bvf-510 <-> bvf-210

According to the manuals the X X are similar to the W V

Hello Matze Red, for me its also the BVM-280 - if you are still active, would you mind sending me a picture of you’re wiring too?

Hello Denis,

I am excited to test this on my BVM-280 as well! Currently I am exhausted trying to get this work… I will order the RED114Y, could you provide me with a picture of your wiring in the next few days?

Kind Regards!

Hello Jonathan,

I did this back at the end of March, 2023. I have found some photos. Hopefully they can help you. See below.

BVM-280 before picture:
NOTE: Your line colors may differ from mine.
On BVM-280 labeled: KKRaab (left to right)

RED114Y installed:

  1. Move the BVM-280 right “a” (white for me) and “b” (green for me) to the RED114Y, “X" (left) and “X” (right), respectively.
  2. Run a wire (red for me) from the RED114Y “X” (left) to the BVM-280 right “a”.
  3. Run a wire (black for me) from the RED114Y “X” (right) to the BVM-280 “b” (far right).
  4. Connect the purple and blue from the Nuki Opener to the RED114Y ctrl-in as shown in the picture.
  5. Connect the yellow from the Nuki Operner to the BVM-280 “K” (left).
  6. Connect a jumper wire from the BVM-280 “K” (right) to the BVM-280 “a” (right). This jumper is black in my picture.
  7. Be sure to set S1 to “A” and S2 to “0” on the Elcom RED114Y.

BVM-280 After:

For more help on RED114Y see also: Elcom BVF-510

Regards,

Denis

Hey Denis,

thank you so much for the description - i just ordered the RED114Y and I am excited to see whether it works!
Ill give you an update as soon as i did the first tests!

Many thanks to all here. I was able to set up my Nuki Door opener and run it together with the indoor station door communication Elcom BHT-200 and I am super happy.

As suggested here I bought the switch device RSR-200 for 31€ +6€ shipment, to replace the standard switch device of BHT-200.

I did the following:

  • Change the standard switch device to RSR-200 and use the same connection to the house (everything is working as before)
  • Solder the purple and blue cable on the front side of the PCB as Uwe Denker did, my open button is still working (many thanks for sharing your photo, my printed circuit board looks exactly like yours). I have asked a friend to do the soldering.
  • Connect switch device RSR-200 contact “K” with the yellow cable of Nuki door opener
  • bridge the contact “K” with “a” on RSR-200 via a small cable
  • Use the device “Generic” and “analog” in the Nuki opener app setting (you find it in the list of brands under “G”)

Only 3 cables I have used from Nuki door opener (yellow, blue and purple)

What is working:

  • Opening via app (without pre-activating by ringing)
  • Ring to open

What is not working:

  • Suppression of ringing when doing ring to open (which is no problem for me)

I have not shared photos as all photos can be found above in this thread. So also without electronic skills Nuki opener can be connected to Elcom BHT-200. Just read this thread 3-4 time :wink:.
BR, Joerg

Thank you everyone without this thread I won’t be able to do it.

Copied From @Dunkel_Jorg !!! Dankeschön Dunkel!!
Many thanks to all here. I was able to set up my Nuki Door opener and run it together with the indoor station door communication Elcom BHT-200 and I am super happy.

As suggested here I bought the switch device RSR-200 for 31€ +6€ shipment, to replace the standard switch device of BHT-200.

I did the following:

  • Change the standard switch device to RSR-200 and use the same connection to the house (everything is working as before)
  • Solder the purple and blue cable on the front side of the PCB as Uwe Denker did, my open button is still working (many thanks for sharing your photo, my printed circuit board looks exactly like yours). I have asked a friend to do the soldering.
  • Connect switch device RSR-200 contact “K” with the yellow cable of Nuki door opener
  • bridge the contact “K” with “a” on RSR-200 via a small cable
  • Use the device “Generic” and “analog” in the Nuki opener app setting (you find it in the list of brands under “G”)

Only 3 cables I have used from Nuki door opener (yellow, blue and purple)

What is working:

  • Opening via app (without pre-activating by ringing)
  • Ring to open

What is not working:

  • Suppression of ringing when doing ring to open (which is no problem for me)

I have not shared photos as all photos can be found above in this thread. So also without electronic skills Nuki opener can be connected to Elcom BHT-200. Just read this thread 3-4 time :wink:.

when some one rang the bell it will notify on your Smart Phone too but you have to enable this in NUKI APP notifications section.

!!! I did burned my BHT-200 !!! in my first experiment so please do it on your own risk. thanks to Galaxus.de I bought it Used in cheap.

I am new user I don’t have permission to add photos



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