Can I Use Both Active And Passive POE To Run a Camera Inside a Heated Enclosure?

Camera is POE, heater/blower is 24AC, ~.25 amp. Cat 6a cable is 25 meters. Don't want to run two cables...

This must be a common scenario. What are the objections to using both active and passive at the same time?

I tested using a passive injector connected directly to the POE switch and 24AC wall wart. The injector's RJ-45 plug is only pinned...

*** **** ** ***** ****** **** *** ** ****** ** on *,*,*,*. *** ** ***** **** *** ****, ***** ** the ******, ***** **** *** **** ** * ******* ********, which ****** **** **** ** ***** *** * **-** **** pinned *,*,*,* **** ***** ** *** ******.

****** * ** **?

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**** * **** **** ** * *** ** ***** **/*** switches **** ***'* ** **** *at ***, meaning they simply won't work with a 1,2,3,6-only setup. Caused a major issue for me once when we mounted some cams with RJ-45 jack tails on a radio antenna tower: because the cams were all outdoors and terminations needed pass through glands and into small PVC boxes (don't ask, wasn't my design), we snipped the jacks off, fed the wires into the boxes, then hard-spliced the Cat5e to the bare tails. The Dahua cams though, only have six wires to the RJ-45 jack: four data, and two for PoE (pins 4/5 are tied together internally, as are pins 7/8).

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**** ***** ** **********... *******!

** '****' ******, *** **** **** ****?

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*** **** ********* ** ****, * **** *** **** ***+ heated ********** **** *** **!

*** ********, *** *** ********** ********** ** ******* *** ****** the ** ******** ** ** *****, ********** ** **** *** enclosure ****?

* **** ** ** ** ******** *** *********** **** *** cameras *** ************ ******. ********** *** **** **** *** ********* lenses. *** * *** *** ******* ****** ***** (***+ -** C) **** **** ****, **** ***** *** ***+ *****. *** switches ****** *** *** ***+, ** ** **** *****, ***** POE+ *********. *** *** ********, ** **** **** *** ****** has ** ***** **** ***+ **********. *** *** ** *** cameras ***** ** -*** **** ***+/** *** (*** < $**** our ****) ** **** ** ******** ** ****** **** *** tele ****** *** *** *******. *** **** *** *** *** enclosures *** ******* ***** *** *********. *** ** *** **** focus.

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