Microscan MS-820 User Manual page 182

Optoisolator Inputs
All discrete inputs can be fully isolated pulses as PNP or NPN circuits.
Minimum Maximum
V
/I 4.5 V/ 3.0 mA 28 V/ 23 mA
IN-HIGH IN-HIGH
V /I 0 V/0 mA 2 .0 V/1 mA
IN-LOW IN-LOW
Pulse Width 48 µS
min
Input Examples
Fully Optoisolated
PNP Source
+V
Isolated Scanner
V
CC
Input (+)
Input (–)
New master pin input (–) is internally grounded.
Not Optoisolated
Non-isolated Scanner
PNP Source
+V
Power (+)
V
CC
Input (+)
Input (–)
Power ground
New master p in in p ut ( – ) is internall y g rounded.
MS-820 Industrial Bar Code Scanner User's Manual
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New master pin input (–) is internally grounded.
Isolated Scanner
(trigger only)
V
CC
Input (+)
Signal
Input (–)
Non-isolated Scanner
V
Power (+)
CC
Input (+)
Signal
Input (–)
Power ground
Appendices
Input (+)
I
load
Input (–)
NPN Source
+V
Signal
NPN Source
(trigger only)
+V
Signal
A-9