WET610N Voltage Problem

[a13w]

Hello,

I am having a problem with the offical FRC radio adapter replacment part, the WET610N. It requires a 12v supply at 1 A. When the wall adapter was plugged in the wall and measured, it outputted exactly 12v, which seems to run the device fine. The wire was then cut so that it could plug into the 12v supply at the bottom of the Power distrubtion board. This, however, caused the device to fry.

I was not at the death of the first one but it may have been reverse polarity or that the power distrubtion slot that says it outputs 12v actually outpus 13v. We ordered a new one, which arrived today and have tested it with the adapter it came with. When plugging the device into our Power distribution board 12v slot, it emits a high pitch whining sound that does not happen when plugged into the wall adapter. I imeadieatly unplugged it after hearing this and measured the voltage from the wire. It was outputting 13v. Is this a problem with our board is that what is outputs for everyone? Has anyone else had this problem?

Thanks for any help in advance,

Alex