Tom, that $40 SBC should be a old CB3 from the junk pile. We now call them "power pingers"
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Tom DeReggi Sent: Wednesday, September 01, 2010 8:42 AM To: WISPA General List Subject: Re: [WISPA] UPS with IP Its tough to find "Low cost" DC inverter equipment that supports built-in IP. Triplite makes an excellent line of Inverters, and they are affordable. (come in 12v <mailto:1...@v> , 24V, and 48V), and can handle high amerage charging and near unlimited load. The problem is that these do NOT support IP type intelligence. There is a physical port that can show some INverter detail, such as when running on battery or not. But this is a physical port that basically send voltage over one of the pins to state the condition. It actually has a remote physical LED block that can plug into that port. IF someone took the time, they could make an adapter to connect that port to a computers or SBC's serial or parallel port and write a small program to read the pin voltage (on or off), and then use the SBC's SNMP or something to enable the power state to be polled. ONe way to get data on power outages is to plug a small $40 SBC bypassing the Batteries directly to the AC, then if that device is no longer pingable, you know no power is there. Anyway, I use the Triplites now, but I as well, am looking for something of similar spec quality that has IP built-in, to simplify and improve remote monitoring. Tom DeReggi RapidDSL & Wireless, Inc IntAirNet- Fixed Wireless Broadband ----- Original Message ----- From: David Sovereen <mailto:david.sover...@mercury.net> To: WISPA General List <mailto:wireless@wispa.org> Sent: Wednesday, September 01, 2010 9:51 AM Subject: Re: [WISPA] UPS with IP With nearly all of our equipment being 24V DC, is anyone running their sites off of batteries connected to an AC battery charger? I'm envisioning something like a solar setup, but instead of using solar panels to charge the batteries, you use an AC-powered battery charger. This would eliminate the AC to DC to AC to DC conversion that a typical UPS setup would introduce, making the efficiency far better and the run-times far longer. I'm thinking I would like to do this (I need to revamp our UPSes everywhere anyway) but am not sure of what pieces and parts I need or if this is a terrible idea that I should run away from. Dave ============================== MERCURY NETWORK CORPORATION David Sovereen 989-837-3790 x 151 On Wed, Sep 1, 2010 at 1:16 AM, Robert West <robert.w...@just-micro.com> wrote: Sadly............. My last UPS I built was from parts pulled outta the dumpster behind the local defunct Gold Star Chili Store. Salvaged the EXIT sign. 2 6v batteries and charging/switch board. I live a strange life. Bob- -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Paul Gerstenberger Sent: Tuesday, August 31, 2010 1:18 PM To: WISPA General List Subject: Re: [WISPA] UPS with IP I second this. We had been using Belkin consumer UPS' because of their physical dimensions, but we've been changing them out for APC 750 and 1500s with SNMP where ever we reasonably can. Get ours new through Ingram Micro. -Paul On Aug 18, 2010, at 3:43 PM, Mark Nash wrote: > I usually buy APC SmartUPS 1500KVA, used on ebay with SNMP card AP9617...this card emails you if the UPS goes on battery. > > Mark Nash > UnwiredWest > 1702 W. 2nd Ave > Suite A > Eugene, OR 97402 > 541-998-5555 > 541-998-5599 fax > http://www.unwiredwest.com <http://www.unwiredwest.com/> > ----- Original Message ----- > From: Steve Barnes > To: WISPA General List > Sent: Wednesday, August 18, 2010 1:51 PM > Subject: [WISPA] UPS with IP > > I am looking for a 1500VA ups with IP control that wont kill me with the price. > > Steve Barnes > RC-WiFi Wireless Internet Service > > > > > ---------------------------------------------------------------------------- ---- > WISPA Wants You! 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