Connection to XL/XLS at directinterface (e.g. Sax. IV/k)

Here is a connection diagram for the Saxonian IV / k.
You can use that diagram also for XL decoder.
You can solder the cables simply to the sockets on the PCB.
Program CV64=0 and CV54=7.
Then the smoke generator is switchable with function key 7.

here is the connection diagram for one-engine locos.