The decoder test unit has all current plug types fitted:
6 pins after NEM 651
8-pin interface after NEM 652
and also a 21-pin
Decoders simply plug in
Decoders without interface plugs can be contacted with the single cable clamps. A high-quality, 5-pole motor with flywheel serves for a load on the motor output: Easy to control the slow handling characteristics and the synchronisation of the decoder!

An LED monitor informs you about the functions front and rear light outputs, as well as the function exits of all four AUX outputs (aux 1 & aux 2 only for micro and OO/HO).
For the test of sound decoders there is a 20mm loudspeaker.