Olivetti DR N17 Service Manual page 237

15. MCU ↔ EXIT MOTOR
Signal Name
A
B
/A
/B
687200Q
Phase A drive signal for the stepping motor (LOW level when driving,
and HIGH level when not driving)
Phase B drive signal for the stepping motor (LOW level when driving,
and HIGH level when not driving)
Phase /A drive signal for the stepping motor (LOW level when
driving, and HIGH level when not driving)
Phase /B drive signal for the stepping motor (LOW level when
driving, and HIGH level when not driving)
P24 Signal Name Signal Direction
E ← M
3 A
E ← M
4 B
E ← M
5 /A
E ← M
6 /B
Description
Trigger
E: Exit
Motor
M: MCU
Level
Level
Level
Level
Service Manual
HIGH LOW
Level Level
24V 0V
24V 0V
24V 0V
24V 0V
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