It stems from the early area of digital railroading, when Märklin to collaborate with Lenz and Arnold to market a universal system.
The device is quite sophisticated: a philips microcontroller, and some special darlington transistors for the heavy lifting (the builtin booster).
The device I repaired seemed to be an early version; I came across a later model on eBay, and they differed in quite a few aspects.
The old model had only the Philips Microprocessor, while the newer version had an extra EPROM.
The versions printed on the processors were also quite interestin: the old one said 'LZ v1.0', but the new one said 'LZV 4.1 (c) LENZ'. And 'LZV' is the type of Lenz's own base stations. So I wonder about the innards of the software, and whether it works with other DCC equipment. When I manage to get some other modules to connect it with, I will do some more experiments.
