[Voyage-linux] ECN for ALIX boards
Petr Lascak
(spam-protected)
Fri Mar 7 22:38:38 HKT 2008
Edwin Whitelaw napsal(a):
> So far my modded boards have also stayed up. A note on the 12v power
> drain. I have an analog ammeter setup to measure current on the POE for
> the boards and it shows barely 0.2 amp even with two XR5s on the board.
Hi,
only one advice, problem with POE is impedance of cable,
especially its inductance.
When the power rise up, the inductance of cable work
in opposite way, and the end you may see the peaks.
Try to add low ESR capacity at board.
regards
--
Petr Lascak
ITF FreeNet Liberec
http://www.lbcfree.net/
NFX founder http://www.nfx.cz/
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