Re: [AFMUG] LED colors and color blindness

[Jeff Hardy]

Forrest,
We have an employee with this issue and the trick for him is 
distinguishing between certain shades of green and blue.  With some wire 
and lighting conditions, he will send me a cell phone pic of the wire 
and ask if the green is on the right or the left.As long as you 
don't go with both green and blue, I think he'd be in good shape anyway.

Jeff

On 09/11/2015 01:04 PM, Josh Luthman wrote:
I know I can see WB APC cards' LEDs just fine in bright daylight, but 
that's almost always in a NEMA box.  In this same box I can easily see 
the MT lights that you can't see easily in the truck.



Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Fri, Sep 11, 2015 at 3:43 PM, Mathew Howard > wrote:


True, it's not nearly as big of a problem as on a radio, but if
it's in a NEMA box on top of a grain leg or something like that,
it can still be a problem.

On Fri, Sep 11, 2015 at 2:39 PM, Josh Luthman
>
wrote:

In a cabinet though?

Josh Luthman
Office: 937-552-2340 
Direct: 937-552-2343 
1100 Wayne St
Suite 1337
Troy, OH 45373

On Sep 11, 2015 3:38 PM, "Mathew Howard" > wrote:

I don't know anything about colorblindness, but one
mistake I've seen on certain other products is using LEDs
that are barely visible in daylight... so that's another
thing to keep in mind.

On Fri, Sep 11, 2015 at 1:55 PM, Forrest Christian (List
Account) > wrote:

A quick question for those who have problems
distinguishing colors or those who know about
colorblindness.

Let's assume I need to add a set of indicators to some
new products.   I'm considering using some
multicolored leds (aka dual, tri, full) for indication
on a single led. For instance red might mean one
voltage and green another. Knowing what I know about
colorblindness (think high school biology - like 30
years ago), I realize that this would be a very bad
thing to do - or at least would be useless for some of
my customers.

What I don't understand is if there are color pairs
which are 'safe'.  I.E. red/yellow vs red/green.  Or
Blue/Amber, etc.

So, now is the chance for all of you who can't
distinguish led colors to let me know what stupid
things *not* to do.   Or perhaps suggest what the best
options are.


-- 
*Forrest Christian* /CEO//, PacketFlux Technologies, Inc./

Tel: 406-449-3345 | Address: 3577 Countryside Road,
Helena, MT 59602
forre...@imach.com  |
http://www.packetflux.com 

Re: [AFMUG] Field Service Bulletin - PMP 450 SM

[Jeff Hardy]

I'll second that.  We've had 10 out of 16 fail so far from a box of 
25.   One customer has had 4 radios now installed at his location.   
We've started replacing 450s with FSK equipment in critical locations.   
We are trying to get the remainder of this box (9 radios) replaced since 
it is very likely that they will fail as well and we don't want to keep 
pushing this rock up the hill.  If anyone has advice on who to talk to 
I'm all ears.   So far, Cambium tech support is requiring us to get 
screen shots of the radios, AFTER they fail, to RMA them.   That is 
after our tech guys drive for two hours and swap the things out with 
another one likely to fail soon.   Pretty discouraging for our staff and 
customers.

Jeff


On 09/10/2015 05:26 AM, Tushar Patel wrote:
I thought the FSB came out because lot of people complain on the 
failures, so at least in my mind it was related. If it is not then 
cambium has not identified at least to us what is the root cause of 
the problem and it has been addressed.


They are doing RMA but there is know way 20% failure rate is 
sustainable in the field.


I hope cambium addresses this quickly and let us know what is going on.

I hope they allocate significant resources to this problem.

Tushar


On Sep 9, 2015, at 11:08 PM, George Skorup > wrote:


I think the FSB is very specific to a set of radios that were 
identified as improperly assembled. I had one 5GHz 450 SM show the 
ADI communication failure. And a 3.6GHz SM show RF calibration 
failure. Both rebooted with ADI force resets. Both not on the list. 
Cambium RMA'd them without too many questions.


FYI. Maybe it's related, maybe not. I found some new SMs that had a 
few solder balls rattling around in the cases, but they work fine.


On 9/9/2015 9:21 PM, Ken Hohhof wrote:
I have seen 2 out of around 100 suddenly exhibit the ADI 
Communications Failure after about a month in service, neither was 
on the serial number list.  So a 2 day burn-in may help but you 
won’t be bullet-proof. We’ve only seen it on 5 GHz SMs, but we use a 
lot more 5 GHz than 3.65 GHz, and no 2.4 GHz.  No apparent 
correlation with any environmental conditions like hot or stormy 
weather that could have precipitated it.
Worst case will be it fails intermittently and the new customer just 
thinks your service is really unreliable.  One of the 2 failures we 
saw was intermittent, rebooting for several hours, then registered 
for several hours, then rebooting again, no rhyme or reason.  At 
least if it fails hard, they will call.

*From:* Tushar Patel 
*Sent:* Wednesday, September 09, 2015 8:48 PM
*To:* af@afmug.com 
*Subject:* Re: [AFMUG] Field Service Bulletin - PMP 450 SM
We had 9 failures in 50 we ordered, those were not listed in the 
unit serial numbers.
What we are doing now is running radios in the office for at least 
two days before we send out and we are seeing these failures in the 
office.
Even after doing that today we had one fail which was 1 hr drive 
from the office and it was new customer too, installed last week. 
This gives us bad reputation and cost us lot too.
So whatever the root cause mentioned in the email, if it was 
identified but did not include the batch we got, so something is not 
adding up still.

I really hope cambium gets to the bottom of these quickly.
Tushar

On Sep 9, 2015, at 8:22 PM, Steve D  wrote:

Just a bump... was this ever sorted out?  Contained to just one 
batch of 5.8 radios as listed?  I know I've seen reports in other 
frequencies but seemed less widespread?  No mention from anyone in 
a while...  Just want to know before our next order...

-Steve D
On Fri, Aug 21, 2015 at 6:37 PM, Matt Mangriotis 
 wrote:


I wanted to get this out to everyone before the weekend.  We
found the root cause and identified the affected units by
serial number.

See the attached Field Service Bulletin, and you can post any
further comment or issue in the thread that discusses it here:

http://community.cambiumnetworks.com/t5/PMP-450/Field-Service-Bulletin-ADI-Catalina-R1-Chip-not-supported/m-p/43211#M1106

Apologies for the pain this issue has caused.

*Matt Mangriotis*

Senior Product Manager*
Cambium Networks**
*3800 Golf Road, Suite 360

Rolling Meadows, IL 60008

www.cambiumnetworks.com*
**O: *847-439-6379 

*M: *630-308-9394 *
E: *m...@cambiumnetworks.com 



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Re: [AFMUG] New Cambium 450 SM's dying after a couple of days with ADI communication error

[Jeff Hardy]

I'm halfway through a box of 25 with 4 failures so far, all requiring 
truck rolls and embarrassment.  I'm going to hold off on sending in the 
box of dead radios as we will probably have another one tomorrow.  Nice 
to know they are working on it

Jeff



On 08/12/2015 09:43 AM, Mark Radabaugh wrote:

Oh, how the mighty have fallen.People used to write articles about Motorola 
quality:  
http://www.qualitymag.com/articles/84187-motorola-a-tradition-of-quality

3 failed so far out of a 25 pack - no six Sigma here.

Dear Cambium - what’s going on, and how many more of these can we expect to 
fall over dead?

Not cool when it happens to the same new customer twice in 10 days.   Makes us 
look like idiots.

Mark