Input 48v is transformer isolated, individual on-board voltage converters have
DC negative directly coupled to chassis ground.
AF24 reads 0 ohms from board DC- (also digital ground) to chassis plate, “no”
path between input DC- and chassis plate.
24HD shares the same PCB, so the same applies for that.
From: Kristian Hoffmann
Sent: Tuesday, June 27, 2017 1:52 PM
To: Ubiquiti Users Group
Hi,
Is the AF24's internal power supply isolated in such a way that it can
be powered with -48VDC, like other telco equipment with a positive
ground, or will this cause a short when mixed with other -48VDC
equipment on the same ground plane?
Thanks,
--
Kristian Hoffmann
Fire2Wire
[email protected]
http://www.fire2wire.com
Office - 209-543-1800 | Fax - 209-545-1469 | Toll Free - 800-905-FIRE
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