[AusNOG] [ISOC-AU-mems] Quigley announces architectural "stakein the ground"

[Matthew Moyle-Croft]

On 17/09/2009, at 10:45 AM, Bob Purdon wrote:

>
>> As long as the ONTs support battery monitoring remotely I think
> solutions can be found.
>
> It's more about the cost of having to visit those things periodically.

As someone who has a network with remote cabinets and batteries I do  
understand this problem fairly well.

>
> I guess there's two approaches - the meter reading approach, where you
> visit every ONT in a given area and just replace the batteries anyway.
> Not a particularly green approach as you'll be replacing some that  
> just
> didn't need it.
>
> Then there's the monitoring approach, where you visit every ONT only  
> as
> needed.  Less batteries to replace, but more time travelling around to
> random addresses.

If you can monitor the batteries properly and see the decay over time  
then you can visit areas in intelligent ways.  ie.  you group the  
visits.   Only doing specific visits for complete failures or  
"critical" customers (ie. medical issues).

Given that entire areas will be installed at roughly the same time and  
that batteries will experience fairly similar environmental  
conditions, the idea of doing, based on actual monitoring of whole  
areas at the sametime is probably quite viable.   Every n years when  
an area has reached an average decay, just go and replace every  
battery and recycle.   This makes it quite efficient to do, even if  
some batteries get replaced that might have survived a while longer.

Given the scale of the problem, intelligent solutions which optimise  
cost and environmental outcomes as well as providing the required  
service can be found pretty easily.

>
> I wonder if there's a super-capacitor type technology that could be  
> used
> rather than a more conventional battery, which would last as long as  
> the
> ONT itself and never require replacing?

Maybe - even if it's not available now, as long as it could be  
retrofitted later.
-- 
Matthew Moyle-Croft
Networks, Internode/Agile
Level 5, 162 Grenfell Street, Adelaide, SA 5000 Australia
Email: mmc at internode.com.au    Web: http://www.on.net
Direct: +61-8-8228-2909		     Mobile: +61-419-900-366
Reception: +61-8-8228-2999        Fax: +61-8-8235-6909

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