Jumper cable for wired doorbell

I’ve bought the wired doorbell but I’m having a problem installing the jumper cable due to an unusual set up.

My transformer is above my connection box in my hall cupboard. The chime is through the wall next to my front door. Problem is the terminals on my chime aren’t marked and i haven’t been able to find a similar set up online.

If anyone could have a look at the photo of my chime box and advise me on where to put the jumper cable? I can’t really afford an electrician at the moment.

Hi @TM3. Thanks for sharing this image. I don’t have an answer, but I’ll share this with my team to see if they can help identify which terminals you would use.