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tming77

PoE Switch can't power up the IP Camera

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Anyone know why my PoE switch cannot power up the IP camera? All cat wire was not more than 10 meters.

 

What is the meaning for "1/2+3/6-" ?

 

Newbies here ... hope can get some knowledge from here

 

thanks!

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is it powering up other cameras but not one camera? Take the camera down and connect to the switch using a short cat5. Did you make the cat5 cable or was it a premade cable? When making a cat5 cable, I have put the wires into the head in the wrong order, thus making the cable the culprit.

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is it powering up other cameras but not one camera? Take the camera down and connect to the switch using a short cat5. Did you make the cat5 cable or was it a premade cable? When making a cat5 cable, I have put the wires into the head in the wrong order, thus making the cable the culprit.

i plug in 6 cameras but all cannot be power up. I do make 2 short cat 5 and others was premade. same results all cannot be power up

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This is a garbage switch and I can't even find the specs of it online. Most POE switch has power limits per port, and a total power output for all ports combined. What camera do you have and do you know its power consumption?

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The 1/2+ & 3/6- indicate the positive voltage is being delivered on pins 1/2 (orange/white) and the negative voltage is being delivered on pairs 3/6 (green/white).

 

Try using a switch that powers pairs 4/5 & 7/8. (Blue & Brown pairs). The switch you're using may be proprietary to some other equipment (e.g. Engenius does this crap).

 

See "pinouts" chart here: https://en.wikipedia.org/wiki/Power_over_Ethernet

 

On the other hand, the POE on that dinosaur switch you have could be DOA...

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Even if the switch is capable of supplying that amount of current (does seem unlikely), chances are whatever external power supply you using definitely can't. What does it take, a 52V 2.3A+ supply? Probably need 2.5-3.0A in reality.

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