Hi,

I purchased several Piko light strips (https://www.piko-shop.de/is.php?id=22047) for Piko SBB coaches, but I have some concerns about the decoders and their hookups. The Piko directions say that I need to use Piko decoder 56126 on their 56286 light strip. Apparently that decoder is the old Uhlenbrock function decoder 76 900, which hasn't been made for a while. The Piko ones are also out of stock at Piko (Piko has even deleted the part number).

I can read the Uhlenbrock/Piko schematic only partly, so I will explain. Here is the address: https://www.uhlenbrock.d...andbook/en/Bes76900e.pdf

On the decoder diagram you will see 4 function highlights: A1, A2, A3, and A4, with 2 more connections made to WR (to AC slider) and WL (to ground). But the PDF also references a green wire that attaches to A3, and a blue wire that attaches to F+. Can anyone understand what these terminals are (especially F+, which is not referenced in the Piko diagram)?

Moreover, is there an ESU equivalent function decoder that I can buy instead of Piko 56126? And if so, could anyone advise on the terminal connections on A1, A2, A3, and F+...A4 and WR and WL?

Best,
George