Why There is a Dashed Line on a Connection Diagram for NI 9203?

Updated Feb 9, 2018

Reported In

Hardware

  • NI-9203

Software

  • LabVIEW Base
  • LabVIEW Full
  • LabVIEW Professional

Issue Details

In NI 9203 Getting Started Guide, I have found, that on the left part of the connection diagram, there is a different connection option marked with dashed line. Why and when should I use each of these options?

Solution

Connection option depends on the type of the sensor.
If sensor is:
  • active - you need to connect it as the continuous line shows,
  • passive - dashed line indicates the needed connection.
Reason for these type of connection is that the active sensors needs a supply voltage, or a set level of energy to perform a task and passive sensors do not control electricity directly and do not require external power sources to accomplish control of an electrical signal.

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