Yes - it's probably more cost effective to install a UPS in the short term ... I figure a 1500VA UPS would keep the DSL modem, hub and WiFi up for about 2hrs. The problem becomes, "What then?" Once a UPS goes down you can't restart them until the AC power comes back... whereas running a homebrew 12V system would allow the battery to be recharged and keep running.
I'm trying to stay away from having to put in a generator to burn gas to recharge the UPS to generate 120V to power an adaptor that supplied 12V to the network gear. Yes, you're right. It was the PC that was killing the UPS initially so I powered it down and wired the laptop straight into the DSL modem. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Dustin Puryear > Sent: Thursday, September 11, 2008 8:36 AM > To: [email protected] > Subject: Re: [brlug-general] Running a network on 12V > > Well, a UPS *is* a battery right? So you are just choosing a > different kind. Personally, I would think that running the > network gear off a large UPS would be more cost-effective, > but who knows. > > What is probably killing you is that PC.. > > -- > Dustin Puryear > President and Sr. Consultant > Puryear Information Technology, LLC > 225-706-8414 x112 > http://www.puryear-it.com > > Author, "Best Practices for Managing Linux and UNIX Servers" > http://www.puryear-it.com/pubs/linux-unix-best-practices/ > > > Edmund Cramp wrote: > > This storm got me thinking - it looks like the phone system > (mostly) stayed up ... at least until the CO batteries and > generators died. But when we lost AC power at home my UPS > running the DSL modem, wifi and firewall started to complain > after half an hour... I disconnected the PC running the > firewall (Pfsense) and wifi and stayed on the DSL modem with > my laptop via a wire for another hour before the UPS finally died. > > > > So what I need I think is a 12V battery and a setup that > runs the modem, firewall, wifi and switch all directly off > 12V - this has got to be a better solution than buying a bigger UPS. > > > > > > _______________________________________________ > > General mailing list > > [email protected] > > http://mail.brlug.net/mailman/listinfo/general_brlug.net > > > > -- > > This message was scanned by ESVA and is believed to be clean. > > Click here to report this message as spam. > > http://esva.puryear-it.com/cgi-bin/learn-msg.cgi?id= > > > > > > _______________________________________________ > General mailing list > [email protected] > http://mail.brlug.net/mailman/listinfo/general_brlug.net > _______________________________________________ General mailing list [email protected] http://mail.brlug.net/mailman/listinfo/general_brlug.net
