Where To Locate Mid-Spans For Parking Lot PTZs?

Just curious where installers are locating their mid-spans when installing POE PTZ cameras in outdoor parking lot applications. I have seen mid-spans located in boxes at each camera pole, consolidated in ground-level cabinets installed out in the parking lots, and installed in data closets back in the buildings.

Will a PTZ camera (such as an Axis P5522-E) work reliably when the mid-span is installed at the maximum distance from the camera, or do they really need to be closer to the camera to work well? (The name "mid-span" seems to imply they need to be closer, but was just wondering if this is just a figure of speech or an actual limitation.)

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