Connection for electric throttle lever control with 4–20 mA output signal d) EDC speed signal for engine synchronisation At plug X9, Pin 15 + 16, a speed signal supplied by the EDC is available. This can be read into the throttle lever control system for engine synchronisation purposes. Terminal box 16 15 14 13 11 12 10 9 1 2 4 3 5 6 7 8 Plug X9 + A Plug A for + electrical engine control EDC input 4–20 mA for engine control speed signal output U EDC speed signal: Pulse-duty factor: 30:1 H = U–Batt. L = 1,3 Volt 6 impulses/engine revolution range: 0–260 Hz t 99 + – – +