PoE Power pinouts and IP Security Cameras

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runswithscissors

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Oct 25, 2012
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I am using a IFS 24-port Gigabit Stackable Managed PoE Switch IEEE 802.3af Power over Ethernet (PoE) 1 U and have a power question. I am using it to run IP security cameras on a job and don't have the switch on-line yet. The cameras are going in and we are unable to power them/ aim and focus without it. Is it possible to make an RJ 45 "adapter" to temporarily power them up at the camera? My thoughts are to find the pins that provide power from the switch, make an RJ plug that only has 2 wires in it and connect them to a separate portable power supply, then plug directly into the camera for setup. Then land the switch when the rack is ready.

Q: 568B is what they will be wired for, which pins are for power ( P+ and P- )

Q: What is the correct / standard voltage from the PoE port ?- or does this depend on the camera?- it shouldn't, the cameras are not field selectable- they are IEEE 802.3af.

Q: Can this be done? I only need power for now and I have a separate video out on the cameras for a test monitor.

....it's more of a Tech guy/ bench guy question I know, but I trust the opinions here. Any help is appreciated.
 
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