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Re: (ASCEND) More K56Cards failures...

We got a couple that has failed too...

Seems like the unit would run with one or no K56 cards installed.  The
units had 3 PRIs going into them.

Is this just poor power supply?  Is the modification process doable by us
with limited electronics knowledge?

>The way I found out here was that I deployed K56 Cards into all chassis 
that I had, They ran fine for about 30 days, Then they started loose 
cards and chassis would just die, I also run 3 pri's into my boxes 
so I'm pulling more power than most. 
>Ascend has yet to publically admit that this is a problem, I'm guessing 
the cost on RMA'ing all those chassis doesn't look too good, but I'm 
sure they are RMA'ing ton's of <645XXX chassis. Kevin? I hate to put you 
on the spot, But what is Ascends stance of older chassis and K56 cards
>Jason Nealis 
>Director Internet Operations 
>Network Access 
>Erols Internet
On Thu, 12 Mar 1998, Andy Walden wrote:
> 
> I have 10 or so maxes that are pre-645XXXX that haven't given me any 
> problems, except one bad modem card in one. Could this be because we keep 
> them air conditioned...regulated..etc? Or am I just an accident waiting to 
> happen? 
> 
> -andy 
> 
> > 
> > Agreed, Plain and simple the Max's made prior to 645XXX are going 
> > to die, That's what happened here, The fans they put in those boxes 
> > are HORRIBLE! They did learn their lesson and put in improved fans. 
> > the boxes they now put out are engineered 100% better than the 
> > older models. 

>I had similar problems. A MAX 4004 with 6 12-modem K56 cards is now down 
>to two. I have taken the unit completely out of service, and had a PM3 
>drop shipped and the Livingston pool expanded to take up the slack. 
Ditto. 
> 
>I attribute it to an older MAX (pre 645xxxx serial number) Jason @ Erols 
>says that they did an engineering change that beefed up the power supply 
>and added more fans. 
Ditto.
>My other MAX (serial # >6450000) is running fine. 
Ditto.
>I'll have a new chassis here soon, after ~13 days spent swapping modem 
>cards and resolving other issues. 
Ditto. 
Wow... pretty much everything is ditto... do you feel a little outraged that 
the Maxes have worked for a little over a year and then just died? 
Personally, since I have more (approx. 10 4004s, and about 35 4048s), I'm 
looking for an alternative... so far, the PM3 is solid. Too bad, the Max is 
a sweet machine, but until the QoS issues are resolved, it's hard to justify 
buying them. Ascend, do you really care? If not, fine, but we've dedicated 
our company on your product and it'd be nice to know that you did. Just 
wondering.
Thanks, 
Chris 
P.S. - for informational purposes, out of 4 original max 4004s, all 4 have 
gone bad. That's a 100% failure rate.

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