There is heat given off at all voltages. And that particular unit might have a fault in the resistor. Solder bridge or wrong resistor. Have not seen that before but could happen.
From: Josh Luthman Sent: Wednesday, September 09, 2015 8:38 AM To: af@afmug.com Subject: Re: [AFMUG] GIGE-POE-APC Hot? Isn't AF24 only 48v? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Wed, Sep 9, 2015 at 10:33 AM, Chuck McCown <ch...@wbmfg.com> wrote: OK, there are some half watt resistors in that area. When running at 55 volts limiting current for the LEDs they do get hot. Their temp depends on system voltage. I had hard to make the LEDs usable for a range of 6-60 volts without some tradeoff. As long as the large chip isn’t getting hot you are OK. From: Josh Baird Sent: Wednesday, September 09, 2015 8:16 AM To: af@afmug.com Subject: Re: [AFMUG] GIGE-POE-APC Hot? Yeah, it seems to be just the area around the LED. The connector is not very hot at all. On Wed, Sep 9, 2015 at 9:54 AM, Nate Burke <n...@blastcomm.com> wrote: Or is it the area right by the LED's? On 9/9/2015 8:52 AM, Ken Hohhof wrote: The connector is hot? That can’t be right. From: Josh Baird Sent: Wednesday, September 09, 2015 8:43 AM To: af@afmug.com Subject: [AFMUG] GIGE-POE-APC Hot? We just installed our first GIGE-POE-APC which is powering an AF24, and noticed that it gets VERY hot. So hot that it almost instantly burns your finger when you touch the green molding. For folks that have these installed, is this normal? It's ran fine for a few days, but this morning we we noticed that the ethernet link on the AF24 was dropping (and coming back very quickly). I'm not sure if it's related or not. Josh