I've done this hundreds of times with the normal stock UBNT or ePMP power supplies... I've never seen it hurt one yet. Obviously you want to avoid doing it with something like a Netonix switch (or anything that you don't consider disposable, really). I've also done it to MikroTik RB750UPs, and that kind of thing a few times by accident, and it usually doesn't hurt them, but it's certainly something you want to avoid doing anyway. Like others have said, it will break a Netonix switch, and probably some other stuff as well... but if all you're talking about is a PoE for an SM... who cares? on the off chance that it does kill it, just replace it. It's worth the risk to not have to go inside a customer's house and unplug it :P
On Fri, Jun 23, 2017 at 3:09 PM, David Coudron <[email protected] > wrote: > Yep, when we saw the spark we remembered pretty quickly the stupid switch > was still plugged in. Guess you have to mess up once in awhile to help > remember…. 😊 > > > > *David Coudron* > > [email protected] | *Mobile: *612-991-7474 <(612)%20991-7474> > > > > *Advantenon, Inc. * [image: cid:[email protected]] > <http://www.linkedin.com/company/Advantenon> [image: > cid:[email protected]] <http://www.twitter.com/Advantenon> > [image: > cid:[email protected]] <http://www.facebook.com/Advantenon> > [image: > cid:[email protected]] <http://blog.advantenon.com/> > > [email protected] | 3500 Vicksburg Lane N, Suite 315, Plymouth, MN > 55447 | www.advantenon.com | *Phone:* 800-704-4720 <(800)%20704-4720> > | *Local: *612-454-1545 <(612)%20454-1545> > > > > > > *From:* Af [mailto:[email protected]] *On Behalf Of *Chris Fabien > *Sent:* Friday, June 23, 2017 1:12 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Mistake: Crimping With PoE Connected? > > > > You should avoid doing this. The POEs all have overcurrent protection and > will shut down, but if you have an ethernet device on the other side it is > possible to blow the port if you short the pins in just the right way. > > > > On Fri, Jun 23, 2017 at 1:45 PM, David Coudron < > [email protected]> wrote: > > We did the same with a Netonix. Pretty sure the port is shot. Might be > OK after a reboot of the switch but never tested very heavily since we > didn't need the port. > > > > Get Outlook for iOS <https://aka.ms/o0ukef> > ------------------------------ > > *From:* Af <[email protected]> on behalf of Christopher Gray < > [email protected]> > *Sent:* Friday, June 23, 2017 12:07:53 PM > *To:* [email protected] > *Subject:* [AFMUG] Mistake: Crimping With PoE Connected? > > > > So, I made a mistake and crimped a cable end while the PoE was still > connected to the other end (Cambium ePMP gigabit PoE). I saw a small spark > while the crimper hit the contacts. > > > > I expected to have to re-do the end and possibly replace the PoE, but > everything was fine. > > > > Are some injectors just less sensitive than others? I hear a Netonix will > lose a port if you do that. Are there any crimpers with non-conductive dies? > > > > -Chris > > > > >
