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| SMSEagle NXS-9700
| User’s Manual
USING DIGITAL INPUTS
Digital inputs (DI) of SMSEagle device are of type “pull-up resistor”. This type of input is used to prevent
accidental switching of digital circuits. In order to achieve it any unconnected inputs called “floating inputs”
should be tied to a logic “1” or logic “0” as appropriate for the circuit. We do this by using what are commonly
called Pull-up Resistors to give the input pin a defined default state, if there is nothing is connected to it. This
can be observed with a voltage level of 3-5V on unconnected digital input.
Digital Output - example of usage with external relay Digital
Digital Input - most simple usage. Optional 500 Ohm resistor is needed when using long cables
Содержание NXS-9700-3G
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