<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On 17/09/2009, at 10:45 AM, Bob Purdon wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><br><blockquote type="cite">As long as the ONTs support battery monitoring remotely I think<br></blockquote>solutions can be found. <br><br>It's more about the cost of having to visit those things periodically.<br></div></blockquote><div><br></div><div>As someone who has a network with remote cabinets and batteries I do understand this problem fairly well.</div><br><blockquote type="cite"><div><br>I guess there's two approaches - the meter reading approach, where you<br>visit every ONT in a given area and just replace the batteries anyway.<br>Not a particularly green approach as you'll be replacing some that just<br>didn't need it.<br><br>Then there's the monitoring approach, where you visit every ONT only as<br>needed. Less batteries to replace, but more time travelling around to<br>random addresses.<br></div></blockquote><div><br></div><div>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).</div><div><br></div><div>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.</div><div><br></div><div>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.</div><br><blockquote type="cite"><div><br>I wonder if there's a super-capacitor type technology that could be used<br>rather than a more conventional battery, which would last as long as the<br>ONT itself and never require replacing?<br></div></blockquote><div><br></div>Maybe - even if it's not available now, as long as it could be retrofitted later.</div><div><span class="Apple-style-span" style="font-size: 12px; ">-- </span></div><div apple-content-edited="true"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Matthew Moyle-Croft </div><div>Networks, Internode/Agile<br>Level 5, 162 Grenfell Street, Adelaide, SA 5000 Australia<br>Email: <a href="mailto:mmc@internode.com.au">mmc@internode.com.au</a> Web: <a href="http://www.on.net/">http://www.on.net</a><br>Direct: +61-8-8228-2909<span class="Apple-tab-span" style="white-space: pre; "> </span><span class="Apple-tab-span" style="white-space: pre; "> </span> Mobile: +61-419-900-366<br>Reception: +61-8-8228-2999 Fax: +61-8-8235-6909<br></div></div></span></div></span></div></span> </div><br></body></html>