Hi Joergen
I have a Märklin CS3 and also a CS2
Märklin has only one type of Double Slip Switch (DSS) with 2 separate motors. It is the K Track 2275 It has been around for DECADES (from 1980 until today.

So the chances Märklin changed the way it regroups both solenoids is minuscule ( inexistant?) I believe.

I believe it is all a matter of arranging the two motors and connecting each wire to your decoder and it MUST work.
The only thing Märklin imposes is that both motors MUST have consecutive addresses

I think some had difficulties using TC. I don't because I use Rocrail (and you may "invert" the action of a solenoid.

Cheers
Jean

Hi Again

I don't want to impose my truth (just my opinion with the little I know and I may be wrong)
- the 2275 DSS cannot be all straight but rather all 4 blades (points) on one side (left for instance) are up or down (so one side is straight and the other is deviating)
- obviously, the exact same goes for the other half (right for instance) and motor of the DSS
- mixing the 2 motors or their connections is the same as a rotation of the DSS to 180°
- in digital operation (pulse duration is 100mS, 200 mS for bad units), shorting the end switches is a good operation towards safe & secure operation PROVIDED the decoder switches OFF the solenoids 100 or 200 mS after activation. This is NOT the case with older Märklin 6083 (rather use 60832). I don't know if this is also true with the decoder you are using.
- in the old days, the decoder would activate the solenoid as long as you push the button. Risk is if the decoder misses the switch-off order, the solenoid burns.

Sorry for the long speech to say it is really worth your while to short the end-position micro-switches only if your decoder guarantees that it will shut-off the solenoid motor after a few mS. Apparently the Lenz LS150 decoder may have its duration set from 0.1 Second to 10 Seconds so adjusting the duration to 0.1 S and shorting the microswitches on your solenoid motors will give you the best results

Back to the CS3 and the 2275 DSS: it proposes 4 positions:
- straight in one direction (on both motors green is activated)
- straight in the other direction (on both motors red is activated)
- turnout top (on one motor green is activated and red is on the other one)
- turnout bottom(on one motor red is activated and green is on the other one)

There is no way Märklin could have changed this while leaving the 2275 unchanged for 40 years.

I am not sure that a servo motor will bring you reliability. I use them a lot (Faller Car System, Crane, Tender coal level, etc) and they are very fragile.

Cheers
Jean

Sorry, but my whole story is just to find out, if the way a CS3 works with the update 2.5.x regarding cross track with two drives, is the same way with only one visible address as the previous version 2.4.x !

Purely physically, it has happened, that you cannot directly see on CS3 which drive has been given the first address!

If I have to be honest, I know it, because a diagram has been made with all 108 ports - what is associated with each port - where the magnet article is located, but it is not enough.

So it is either to follow the wire under the track to determine the drive, or remove the "yellow" wire on e.g. the first port and then see which drive is not moving.

My combination of a CS3 and LS150 means that every 2-3 week will have to change some blue wires because there is no connection between the screen and how a switch is positioned.

So that's why I'm looking back to the version where the 2 ports were visible, and here I hope that it would be 2.4.x, where Märklin has opened the possibility, that you can go backwards!

Another advantage would be that my 5 locomotives with ESU Loksound 5 would again function as MFX!

One can rightly suggest a change to 100% Märklin, so out with the 18 pcs. LS150 and replace them with more 27 pcs. m83.

Tried but gave up because I can't figure out how to get my motor drives MBT to work because they require a longer pulse.

So the 3 purchased m83 have been sold again!