Newland NLS-FM515 Series, User Manual

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20
Chapter 5 External Reference Circuit
External Circuit Design
Switching Output Circuit
The circuit below is used to drive an external switch output signal. This pin is reserved as external output interface. The
SW_OUT signal is from black wire of the 7-pin hot-tinned wire.
Figure 5-1
Switching Input Circuit
The circuit below is used to provide the scanner with a signal to trigger a scan and decode session. The SW_IN signal is
from orange wire of the 7-pin hot-tinned wire.
Keep the signal high to trigger a decode session (default: low level).
Figure 5-2
K1
1 3
2 4
+5V
C1
100pf
C2
100pf
FB1
CBW160808U600T
SW_IN
DGND