All LokPilot 5 H0 decoders have 10 (!) Amplified function outputs to make ambitious conversion projects possible.
"MKL" stands for Marklin at ESU.
Many newer Marklin locomotives, but also some British locomotives with a 21-pin interface, unfortunately do not adhere to the standard design of the 21MTC interface. These locomotives expect amplified signals at the AUX3 and AUX4 outputs.
In these cases you have to use a LokSound 5 decoder with 21MTC "MKL" version.
The outputs AUX3 and AUX4 are amplified on these decoders
