Dealing with PoE Only Cameras

Author: Ethan Ace, Published on Jun 06, 2012

Increasingly, IP camera manufacturers are dropping low voltage support in favor of PoE power only. This can cause problems and unexpected expense unless this risk is recognized and dealt appropriately. In this note, we cover the reasons this change is occurring, applications it affects, means for handling it, and manufacturer support of low-voltage power.

Low Voltage Support

***** **** **********, ***-******* ******* *** ******* ** ** ******** by ***-****. **** ** **** ****** ** *** *** *******, which ** **** ** ****** ****. *******, ** *** ******* to ****** **** ****** ** *** *** ****-*** *******, ** well, **** ***** ********** *************. ** **** *******, **** ** not ** *****, ***** ******* *** ********* ******** ** ******** building-mounted, *** *** ** ******* *** *** ****** ** *******, over *** **** *** **** *** ******.

Applications ********

*******, ****** ***** **** ***-**** ******* **** ********* *** *** great ** ** ** *********** ** *** ***, **** ** parking ****, ****** ******, ******* *****, *** ******. ***** ********* are ********* ********* *** ***** ** ******** ********, **** ***** high-voltage ***** ****.

** ***** *****, ***** *** ***** ******** ********* ** *** PoE *******:

  • *******:** ***-**** ******* **** ****** **** *** ******* *** ********, a ****** ******* ******* *** ** ****. **** *** ** either * ******** ******* ** * ************ *********, **, **** commonly, * ************ *******. ** **** *****, ** ********* ** required ** ***** ***** ********* **** ** ***** **********, ***** transceivers, ** ******** ******, ****** ***** *** ***** ********* *** the *******. ******** **** ****** **** *****-************ *** ** ***** ****** *** ***** $*** *** ********* *******, ** $***-*** *************** ******. ******* *** ******* *** *** **** ** *****, **** can ******* ******** *** **** *** ******. **** ****** ** kept ** **** ** ***** **** ********* *** ********.
  • ***-******* ******** *** ***** *********:*** ****** ****** ** ** *** ******** ****** ** ***** media ********** **** *** ******. ******* *** **** ******* ******, though ************ ******* ******** ************* **** ** ******** *** ********* offer **. **** ******* ***** *** ***** **********, ******************* ********,***** ***,****, ******* ** ***** **** *****$*** *** ***-******** ********$*** *** ******** *******. ****** **** ********* ** ***** ****.
  • ***-******* ******* *******: *** ******** ******** ** ***** ** *** * ***-******* capable ******, ********** ** ***** ********** ** *** ******** ******* low-voltage *****. *** *******, ** ******** ****** ****** ** ***** converters ******* ***** *****, ******** **** ****** *** ************ ********* from *** **** ****** ******* **** *** ********** ********. *******, this *** ***** *** **** ***** **** ********* ****** *** image ******* / ******* ******* ****, ***.

** ** ***** ***** ** *********, ***** *******,**** ** *** *********, ****, ** *****/*** *********** *******, **** be **********.

Manufacturer *******

***-******* *** *** ******* ****** ****** ******* *************, *** **** within * ****** ******* ****. ***** ****** ******* ***** ************ during *** ****** ***** ** ****** *************.

****** ** ** ***** **********, * ***** ****** ** ****** manufacturers ***** *** ********* *******:

  • ****:**** **** ****** ******* **** ***-******* *** *** *****, ****** low-cost ******, **** ** *** ****** *** ******, **** ***** PoE.
  • *******:*******'* ******* *** ***-******* ***** ****** **** ***** ***** *****. Much ** *** **** ******** **/** ***** ** ******** ** PoE, *** **** ******, ********** ** *** ******* ****, ***** only ***.
  • ********:*** ******** *******, ********* *.*** *** *** ******, ******* **-*****/***** in ******** ** ***.
  • ****:****' *** ******* ** ************ *** ****** ****** ***** ****. Many * ****** ******* ******* **** ***. *** * *** Q16/17 ******* ******* ** ***** ** ******** ** ***, ***** P ****** ***** ******* **** ***.
  • *****:**** ** *****'* **** ******** *****/***** ***** ** ******** ** PoE, ***** *** ********* **** ******** ***** *** ***, **** no ** *******.
  • *********:********* ******* ********* *** ******* ***** ** *** *****.
  • ****:****'* * ****** ******* (**/** ***/***) ******* *** ****, ***** the **** ** *** **** ******** ***-*******, ** ****.
  • *******:**** ******* ****** ******* ***-******* ** ******** ** ***, *** many ***-**** ** ******* ****** *** ***-****.

**********

******* *** ******* ***** ** *** * **** *******. *******, it *** ** ** * *** ******* **** *** ****** for ********* **** *** ***** ** *** ******* *********. ***** that **** ***** ** ******* *******, ***** ****** ********* ***** low ******* ***** ******* ** ***** ** ******** *** ********** and ****** *********.

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