Technogym Step 600 XTPRO - Page 24

STEP 600 XTPRO: Service & Maintenance Manual - rev. 1.1
Page 3.6
The signal is cleaned and level-converted before being sent from the alternator interface board
(pins 5-3 of connector CN1) to the CPU board (pins 5-3 of connector CN1) as a square wave
which varies between 0 and 5 Vdc, as illustrated in the figure below: