Practical Limit For POE And Data Over Single-Pair Of UTP?

I have something weird to share: During the course of testing IP MP cameras without a suitable infrastructure, we were provided with Vigitron Vi2301/Vi2316 evaluation units to transport the stream from an IP MP camera approximately 600 feet. We were unable to get the camera to power up and found that the Vi2301 and Vi2316 devices will not provide POE over a single pair. We learned that...

*** ****** *** *** ****** ****** ** ** ******* ** their *********. ***** *** ****** ** ****** *** *** ****, we ***** **** *** ** ***** *** ******** **** ***** or ***** *** *** * *** ******** *** *** ******. The ****** ******* ***** ** **** **** ********* **** *** problem, ******** ******** *** ******'* **** ****-**-*** ********** (********* ****** with, * *******, *** ************ ********). ***********, *** ****-**-*** ********** just ******* *** ********* **** * **** ** * ***. The ******* ***** *** **** **** **** ******** ***** ******** works! ** *** ******* ******** *** ***** *** **** *** camera *** *** ******, **** *****/* **** ********* **** ** approximately *** **** ****** ** * ****** ** ***** **** of ****. ***** **** ** *** *** ******* (****** *** Axis *****) ** ********** **.** (**.** *** *** ***** *** 2.5W *** *** ******). **** ***** ** *** **** ** everything * ******* ***** *********** ** **** ** *****. *** comments?
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* *****'* ***** ***, *** **** ***** ********* ******** *** ***. *** **** ********* *** ********* *** traditional ****** **** ** ** ********. *********** ** **** *** intentionally *** **** *** *** ***********.

*********** ********* ** ******* ** ****** ***.*******.*** ***.*******.****>, *** connect *** ***** ** ******* **** *** *** ****** ****, maximum ******** ** ** *** ******. *** ******** ** ******* kilometers *** ** **** ***** ******** ** ******* **** *****-** SHDSL *****.

***********, ** ****'* ************* *** **** *** *** ***** - it ** ******* *****. *** ******* *** ** *** **** for *** ****. **** *** **** * ****** **** ** UTP. ******** ******** *** ******'* **** ******** ****** (********** ******** out?) ** ******* *** ** *** ** **** *** *** our *******. ** ***' ** * ****** **** ** ** gauge **** ** ************ ******* **** *** ** ***** **** the ****** *** *** ****** ***********.

*** ***** **, ** ***'* **** ** ** **************. *** analog **** ~**% **** *** ~**% ******-**** *** ***** ****** and **** ****** *********. ********** ** ***-** ***** ** *** costly *** ***** * ***** *** ****** ***** ******* ******* a ******** ** ****** ***; **** ******. *** *********, *********** how ********** *** ********* ** ****** *** ***** ***** ***.

**** * *** ***** ****** ** *** **** - * measured * **** ********** ******* ***** ** *****, ** ****** (600FT ***** ****) ***** ** ***** ** **** **********.

***, **** ** ******* *** ** ***** *** *********, *** assuming **% *** **********, ** ******** **** ** ******** **/*.* = ***.

* = **, ***** * ** *** ******* **** ****** our ****** *****), *=**, *** *, *** *******, ******* ** the ******* **** ** ****** ** ******** ******* *** *** points.

** = ** *****

* = ** (***'* ***)

** * = * ***,

** ** = *^* * ** (******** **** ***** ** I),

*** ** **** ** = ** *****

** ** = *^* * **

** *^* = **/**, * = ****(**/**) = *.* **** current **** ***** ** ** *********** ****** *** *****

*** ** *** ******* **** *** *** ******* **** ****** the ****** (***** ****) *****:

****** = ** = *.**** = *** ******* ****.

**, ** *** ****** **** ** **+** = *** ** - *** ****** ** ****!

********* ******* ***** ******* ********** ****** *** ****** **** ** UTP - **** ** ****** ********** ***** ***** **********/**** ************ schemes, ***** *** ******* ******* ** ****** ****** ***** ***** (Cat5 >>> ***** *****).

**** **** ** *******: ***** = **, ******** ** ***** - **** ** *** ** = ** *****

*****,

***, ***** *********** *** (* ****** **** ****** ** ****, LOL) (***, *'* ** *** ****). * ****'* ****** ** measure *** ** ********** ** *** **** ******* *** ******* didn't ***** ** **. ** *** ***, ***** *** **** two "**" ****** ** *** **** (*** ** **** *** of *** **-**** *****). *** ** *** ********** ** ******** else ** *** ****: *** ***** ******, **** ****'*, ***.