roco 23 DR series Handbuch Seite 42

▪ BR 23 function key allocation (delivery state) for the analog model
The factory-set default adress of the lok is 03.
F-Key Function for Motorola address 1
F0 Light
F1 Sound
F2 Whistle long
F3 Whistle short
F4 Conductor whistle
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F-Taste Function for Motorola address 2
F5 Coupling / Uncoupling
F6 Shunting Mode
F7 Curve squeaking (only with F1 and whilst driving)