Is "Spark Gap Erosion - Unmating Under PoE Load" A Serious Issue For Poe-Enabled IP Cameras ?

Reading the latest issue of a cabling industry magazine, and one famous manufacturer pointed out a problem I was not aware of before:

Spark Gap Erosion Caused by Unmating Under PoE Load.

Is this a really serious issue for PoE enabled cameras or just publicity to sell more of their premium "crowned contact geometry" plugs ?


Is this a really serious issue for PoE enabled cameras or just publicity to sell more of their premium "crowned contact geometry" plugs ?

It would seem that the average camera is not unplugged often enough for this to matter. Even when I was traveling with demo cams and plugging/unplugging them several times a day I did not ever run into this issue.

If you were really worried about this, a bit of dielectric oil might help prevent arcs.

Even when I was traveling with demo cams and plugging/unplugging them several times a day I did not ever run into this issue.

Agreed. for 802.3.af at least.

With 802.3.bt (POE++), which can carry 5x the amps of af, maybe better plugs and/or jacks will be required.

This sounds a bit fishy. Just think how long those slot cars lasted when you were a kid, and that was just all sparks, all the time. I know this is an apples to Argentina comparison, but it seems kinda' hard to believe that gap sparks are really a problem with PoE.

Just think how long those slot cars lasted when you were a kid, and that was just all sparks, all the time.

You're right, the power always got there, they never stopped moving. But after a while I found that I was unable to get a good 10Base-T signal to the car. ;)

Should have tried hermaphroditic token ring connectors....