Basic HTML Version
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I
OptoTheory
The opto receiver (Photo Transistor) should be approximately 0.1 - 0.7 volts when the opto beam
is unblocked and approximately 11 - 13 volts when the opto beam is blocked. The opto
transmitter (LED) should always be approximately 1.4 volts.
Note:
The transmitter (LED) is
larger than the receiver (Photo Transistor); it protrudes further from its case.
LED Board
T
ra nsm itter
1.0-1.1 Volts
Photo Transistor Board
Receiver
D.l-D.N
Unblocked
11- 13V Blocked
Green
o
WHT
BLK
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Infrared Ray
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k!1J1ri
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Blue
o
SllI.IIR
@
II
Gray-XXX
Black
Gray-Yellow
Orange-XXX
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