Digital Inputs Port Jp2 - Denkovi DAEnetIP4 User Manual

11.2.

Digital Inputs Port JP2

 Low level (0) input voltage: From 0V DC up to 0.66V DC;
 High level (1) input voltage: From 1.63V DC up to 5.5V DC;
 Maximum input voltage on any JP2 input pin is 5.5V DC;
 There is pull-up resistor connected to 3.3V inside DAEnetIP4 for every JP2
input pin.
The digital Inputs port is not protected and it is connected directly to the
CPU! Over-voltage or inverse polarity voltage will damage the CPU.
It is recommended always to use resistor in sequence to the Digital Input.
It is recommended to use protection resistor with a value of about 1K in order to
connect the JP2 Digital Inputs port pin with GND via switch or button. Bellow is
shown an example how to connect button to DAEnetIP4 JP2 port.
Figure 47. How to connect button to Digital Inputs port JP2
Figure 46. DAEnetIP4 Digital Inputs port JP2
DAEnetIP4 User Manual
08 June 2018
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