Yep, that's what I'm talking about. Get all of your gear on a common
power source (like a DIN rail DC supply, or a DC-UPS) and fuse each PoE
injector's DC input.
We've had situations in the past where regular old brick supplies would
still deliver current while the SS puts it all into ground, and things
smoke, melt, etc.
I use Buss fast-acting fuses rated for 2X the radio's load. They will
pop as soon as the SS trips and sends the surge to ground, which
prevents things from burning up.
Note that I do not run a main fuse (between power supply and fuse block
"rail"). Haven't had any problems with that. Just trying to prevent the
problem where everything goes down because the main blows. I could put
like a 20A fuse or breaker there, but it probably wouldn't do any good
anyway.
On 4/20/2015 2:55 PM, Paul McCall wrote:
DC and fuses? Explain please.
We have everything fused in a fuse block on 24v, but this goes in
between the POE device and the APs
*From:*Af [mailto:af-boun...@afmug.com] *On Behalf Of *George Skorup
(Cyber Broadcasting)
*Sent:* Monday, April 20, 2015 3:47 PM
*To:* af@afmug.com
*Subject:* Re: [AFMUG] How does this compare to Chuck's solution WBMFG ?
We've used a LOT of L-com/Hyperlink suppressors. Most of them did
their job, others did not. And they're expensive.
WB cards are cheaper. And they also seem to react to surges much
faster. I believe they are superior, IMO.
By far the best thing we've done is DC and fuses.
On 4/20/2015 2:34 PM, Paul McCall wrote:
We have had good luck so far with Chuck�s but we haven�t been
through a lightning season yet on WBMFG�s rack mounted
protectors.�
�
My logistics guy wanted me to look at these and give an opinion in
comparison
�
http://www.l-com.com/surge-protector-indoor-din-mount-10-100-base-t-shielded-cat5e-lightning-surge-protector
�
Paul
�
Paul McCall, Pres.
PDMNet / Florida Broadband
658 Old Dixie Highway
Vero Beach, FL 32962
772-564-6800 office
772-473-0352 cell
www.pdmnet.com <http://www.pdmnet.com/>
pa...@pdmnet.net <mailto:pa...@pdmnet.net>
�
