Inputs/Outputs Tutorial

Author: Brian Rhodes, Published on Jul 25, 2012

While may cameras have Input/Output (I/O) ports, few are actually used and most designers do not even consider them. However, a good understanding of their flexibility can save hundreds of dollars on complex designs. In this note, we explain camera I/O and how it can be used to expand camera function.

Ways to Use I/0

**** *** **** ******** ** *** *** *** *** */* to ******* **** ************:

  • *** **** / *** ***** ******: ******* ** ****** * ******* *** * ********* ***-***** camera, * ******* ****** **** ****** *** ***** *********** *** I/O ***** *** ** **** *******. ** *** ****** ** paired **** * ***** ***, *** ********** ****** *** ****** out ******* *******, *** *********** ** **** ****** *** ****** the ****** ****** ***********.
  • ****** *********: ***, ** '******* ********' ****** ********* *** ** **** ** ******** *** '****** *********' *********** ** * camera ** *** ** **** *****.
  • ***** *********: ***** **** ********, ***** * ****** **** * **** ** opened, ********** ********* ** ****** ************** *** ***. **** *** be **** **** **** ********* ** **** *** ******* *********.
  • ******* ** ******* *******: ****** **** ******* *** ***** * ******. *** *******, when ***** ** ******* ** **** *********, '**** *******' ******** ********.
  • ******: *** *******, ** * ****** ******* ******, ** *** send * ******* **** ***** ** * **** ** ******** activity
  • ******* / ******: * ****** *** ** **** ** **** ** ********** lights ** ** **** ** ****** ******** ** ** ******* illumination
  • ******: **** *** *** ** ******, *** ********** ****** *** be ********* ** * ******. ****** ******* **** **** ******** or ******* **** *** ** ******** ******* */* ****** **** the *********** ***** ** ****.
  • ********* ***** ******: ** **** *****, ******* ******** **** ***** *** ** configured ** *** ******* ** '******* *******'. *** *******, ************ cameras *** ******* ********* ***** ******* ** *** **** *** that ***** ******* *** ****.

Basics ** */*

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********: ********** ********* *** ******* ****** *** ******'* **** ********* where **** *** ****** ** ********** '********'. ***** ******** ****** alert *** ****** ** ****** ** ******** ******* ****** ******* closure. *** *** */* ******** *** ********* **** ******* ******* camera *************.

******

******** '*****' ** '******' ******** **** ****** * *****, ********* 5-24 ***. *** ***** ***** ********* ** *** ****** **** vary, *** ****** ** ********* ** *** ********* ******. **** low ******* ********* ***** ******* *** ***** ******** *** ********** inputs, *** *** ******** ******** ** ******. ***** ******* *********** with *** ****** *** ********** ******* '********', ******* *** ******* condition *******, ********* *** ****** ** *******.

***** ********:*** **** ***** ** ******** ** ****** ***** *******:

*** ***** ***** ***** *** */* ******* *** ******** ***** into ************ *******. *** ****** *********** ** *** '*****' ** 'output' ******** ******* ** *** ******** ******. *******, ****** **** of ********** ** ******** ***** **** *** ******** ******** *** same ***:

*******

****** *** ***-******* ** *******, ******** * ** ** ***/**. This ***** **** */* ******* ******** ******* ****** *** */* ******* must **** **** ******* */** *****. *********, ** ****** ******** ********* of *******, ******** ****** ** - *** **. **** ******** is ******** **** ** * ******* ** ******* ******, *** directly ******** ******* **** ** ****** ** *** **** ********. ** most *****, *** ******* ******** ********* ** * ******'* */* port *** ********** *******.

*************:*** ********** **** ***** ********** ***** */* ** ************* '****** behaviors'. ****** ******, ******* ********* ******* ************* ****** **** *** be ****. '****** ********' ************* *** *** ****** **** ***** ******* when *********. *** ******** ***** *** ******** ************ ** ** '*****' (intermittent) ** '******' (**/***). ***** ******* **** ****** ** *********** at ******* *********, ***** ****** ******* **** ****** ***** (** On/Off) ***** ********.

****** ********: ****** ******** ** ******* *******

  • ******
  • *******
  • ********* ***** ******
  • ******: *********** **** ***** ******* ****** *** ******* ******* ** control **** ******* ******* *** *******
 

I/O ***********

*** *** ****** ********* *** *** ********* ******* */* ************ equally. ** *******, */* **** ******* ** *** ********* **** documented ******* ************ *** ** ******** *** ********. *******, ** our ********** ********** ****** *** *** ****** *** *** **** stable *** ********** ******** **** ****** *****.

*******, ***** */* ** ******* ******* ***** *** ********* ** integrating ********** **** **** **** *** ********. ******* ** *************** manufacturer ********* *******, *** ********** ** *************** * '***-***' ****** solution. **** * ******* **** *** ******** ** ******** ** stops *******, *** ********** ** ***** '** ***** ***' ****** troubleshooting ***** ***********.

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