Hello Alf,

The Mux 5229 is ALREADY a dedicated signal decoder with addresses, so you don't need to plug this 5229 to M84, and don't do it !

For signals 4751/4752/4753 you need (?) to have a signal bridge 4755, in order to attach the signals to the bridge.
The bridge provides 2 x 4 pins multiplexed sockets, and each socket matches for a complete single signal with advanced lights.
See doc for 4755 here: https://viessmann-modell...755-pdfGQXY84flmYwyP.pdf

Then, each socket going out from the 4755 must be connect to one 5229, plug Hp. Do no plug the socket into Vr plug. This Vr plug is dedicated for single advanced signals.
As 4751/4752/4753 are a pair of signals, a 52292 Mux would be better than 5229. Il will allow to drive a complete set of 2 signals mounted on the bridge

You have then to program the 52292/5229 in order to assign an address (in your case, 4 consecutive addresses will be assigned for each signal, even if some addresses will not be in use depending of the signal type).
Look at this doc: https://viessmann-modell...WEB-pdf9dh6qSqImNKcZ.pdf for 5229 wiring; Look at the right side picture, it wiil show you how to wire to 5229 or 52292. Note: in the picture, the 4720 and 4726 signals have bad legend (legends are swapped, the advanced signal is 4720, and the main signal+advanced signal is 4726);
Note2: discard the 5545 command box, as it is the CS3 which commands the signals.

As you may see on this picture, the 5229 has a pair of red/brown wires which should be connected to the digital signal from the cs3.
About the dip switch of 5229, I'd suggest to set switch 1 to ON, that's it.

When the wiring is complete, then define a Base address for one of your signals in the CS3, with the right protocol (DCC or MM). Put the 5229 in programming mode (DCC or MM), and when ready click on the signal matching the address in the CS3. The first signal is now programmed, and you can switch the various colors of your signal with the CS3 command panel for signals.

I've never used 4751/4752/4753 signals, but heavily used 4726/4725/4724 signals with 5229/52292 and CS2, and it works absolutely fine. 4751/52/53 are the same as 26/25/24 except the former are not attached to a mast.
Doc for 5229: https://viessmann-modell...229-pdfKa4LLVzocJWSD.pdf
Doc for 52292: look at https://viessmann-modell.com


Good luck
Fabrice

Hello Alfred,

You don't need to buy additional plug: The bridge has the 2 X female square 4 pins plug which fits into the male part of the 5229/52292. (see 4755 doc)

Cheers
Fabrice