On 14/11/2013 16:06, Job Snijders wrote:
How have others solved the issue? Any ideas on how to get these Anchors to run on 48V DC (for telco-style deployment)?
https://www.soekris.com/manuals/net6501_manual.pdf
4.1 J7, DC Input Jack The 2.1mm DC Power Jack should be used for connecting a small wall mount unregulated power adapter, supplying 6V - 28V DC at minimum 15 VA, preferable more depending on expansion added, with a 5.5mm outside, 2.1mm inside female power plug with plus at center pin. It is protected against reverse polarity. Please note that standard unregulated power transformers can supply much higher voltage that the specified nominal voltage, so when using such a type it's recommended to use one that is specified for 16V DC or less.
So all you need to do is transform from -48VDC to say +16V/1A and feed that to a 2.1mm connector. Nick