Cool. I guess we're going to be doing an insurance claim on the lost
gear, so I'll send this injector and Base II to you after that.
On 5/1/2017 11:00 PM, Forrest Christian (List Account) wrote:
Yeah, I like to see these.... Helps me to know where the design is
susceptible to this type of stuff - although at some point it really
just starts to feel like whack-a-mole: With enough energy, something
is going to fry, and if you strengthen one part (or protect it
better), then the energy is just going to choose something else to cook.
On Mon, May 1, 2017 at 4:56 PM, George Skorup
<[email protected] <mailto:[email protected]>> wrote:
Sorry to hijack, but semi related...
We either had a really bad power surge or a very close lightning
strike at our NOC over the weekend. No visible signs of a direct
strike to the tower. I'm leaning towards the power surge since
other networked things in the office died, and our office
telco/network closet is uplinked to the server room via a pair of
fiber. Railroad stuff was all messed up at several crossings. And
other businesses nearby lost various electronics as well.
Two AF24's and an AF5. GigE-APCs at the bottom weren't burned up,
but were obviously dead. The AF POE injectors all shut down when
plugged into them. The GigE-SS's on top apparently stopped the
surge from hitting the radios. After I bypassed the GigE-APCs at
the bottom, the ethernet links would only run at 100Mbps, plus
errors. After bypassing the GigE-SS's on top this morning, all
three are running GigE again with no errors. So that saved a lot
of work today.
However, it wasn't so good for the 5GHz 450i cluster at the top.
Don't know how, but one survived. We relied on the 450's built-in
suppression at the top. Didn't happen. The GigE-APCs were all
dead. So yeah, you should probably just run GigE-SS's near a
radio, even if it claims surge suppression is built in.
The PacketFlux PowerInjector+Sync had two of the ports with
visible damage on the board. Took out the SiteMonitor Base unit
with it. Forrest, if you want these for failure analysis, just let
me know. I'd be happy to send them to you. When I got the office,
the green LED was flashing 2, and I believe port #2 was a damaged
one. It also took out all four of those ports on the CCR1036.
I've seen similar events over the years and this clearly looks
like bottom up, i.e. utility surge. And of course the one thing I
forgot after doing the generator and transfer switches.... the f'n
whole panel surge suppressor. I would've moved the existing one
over to the other panel, but I needed different breakers.
On 5/1/2017 11:22 AM, Chuck McCown wrote:
During a recent solder paste reorder, one of our people ordered a
different solder than we historically have been using. It
requires a different cleaning method than we normally use.
We only recently noticed this when making some new product
prototypes.
So, for a relatively short amount of time, the boards have not
been properly cleaned.
We will offer free advance replacements for any of our products
purchased this year just so we can inspect them. I don’t think
it has been going on for a long time but I am not totally certain
exactly when this happened.
If you have anything acting goofy or just don’t to chance it,
let us know and we will ship you some new ones to swap with.
--
*Forrest Christian* /CEO//, PacketFlux Technologies, Inc./
Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602
[email protected] <mailto:[email protected]> |
http://www.packetflux.com <http://www.packetflux.com/>
<http://www.linkedin.com/in/fwchristian>
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