OPTICAL SENSOR INTERFACE
The interface with the optical sensor is through the small 4 pin connector on the
tachometer decode module.
The signal references are as follows:
PIN FUNCTION
DESCRIPTION
Buffered tachometer rate 0 to approximately 1200
pulses per second.
+5 V DC limited by 180 ohms to drive the emission diode
in the optical sensor.
Output of optical sensor. Same frequency as buffered
tach rate.
4
Ground
Ground to optical sensor.
REFERENCE TAB
1 Test
2 Sensor
PWR
3 Sensor
rate
51
Содержание 2742
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