Datalogic Matrix 300 Reference Manual page 153

ALTERNATIVE CONNECTIONS
A
CAUTION: For NPN output connections, the external interface voltage (Vext)
must not exceed the Matrix 300™ power supply source voltage (Vdc)
otherwise correct output functioning cannot be guaranteed.
Matrix 300™
USER INTERFACE
Vdc
9/8/16
2
Figure 97 - Push-Pull Output Connection
CAUTION: For Matrix 300™ PoE models, the internal Digital Output
circuitry is not powered and supply power is not available to any Input/Output
devices (Vdc=0). Only input device signals can be accepted directly on the
M12 17-pin connector without power.
For these models, if it is necessary to use Input/Output devices, we recommend
connecting them through the CBX, which must be powered separately.
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