Yes, please let us know how your testing goes. We are using two Northstar 12v 100Ah batteries in series right now, but we are considering going as high as 190Ah for certain sites. I'm curious how long it would take to charge those up, and if the ACP units will protect the SLA Gel batteries from running dry or not.
-- Christopher Tyler MTCRE/MTCNA/MTCTCE/MTCWE Total Highspeed Internet Services 417.851.1107 ----- Original Message ----- From: "Josh Baird" <joshba...@gmail.com> To: af@afmug.com Sent: Tuesday, January 6, 2015 12:50:34 PM Subject: Re: [AFMUG] 24V UPS Hmm, give us details when you get them regarding the XL! Josh On Tue, Jan 6, 2015 at 1:45 PM, Gino Villarini <g...@aeronetpr.com> wrote: > Chris > > Thanks for this compressive evaluation. We bought 2 Alpha/Cordex unit for > testing. We are in a similar spot, looking for a web managed power system > in 24 and 48 vdc. > > You saved us the expense of buying an ICT unit. > > That being said, we are looking into using a slightly modified apc xl unit > to run 24 dc direct from the UPS DC rail > > > Gino A. Villarini > @gvillarini > > > > > On Jan 6, 2015, at 12:24 PM, Christopher Tyler <ch...@totalhighspeed.net> > wrote: > > > > I'm at my end. I've been looking at this for a while now and it's > obvious that no one makes an industrial APC UPS that works. > > > > We've tried the Alpha Cordex (DIN rail) and the ICT (19" rack) and > neither one can do what a APC management card can. We just need it to > provide 24vDC to a load and when the AC power goes out, send an alert and > let us monitor the system status via SNMP. > > > > Alpha: > > PROS: DIN rail mounted > > CONS: Web interface is IE only, SNMP requests are completely broken, > have not tested SNMP traps, cost is about $700. > > > > ICT: > > PROS: It works well as a dumb power supply/charger with UPS > functionality, web interface works in all browsers. > > CONS: SNMP is limited to about 6 values, all remote communication is > lost when AC is removed, no battery monitoring at all other than the > voltage for use with LV cutoff which is one of the values that is not > available via SNMP. Also costs about $700 > > > > I have to give it to Alpha at this point, at least their unit remains > "intelligent" when AC power is removed. If they would fix their web > interface and SNMP it would be perfect. > > > > So... Does anyone have a solution that works that isn't completely > cobbled together? I need to know when we lose/regain AC power, that the > battery is draining, what the battery voltage is so that I know when it's > about to cut off, it needs a LV cut off to protect the batteries, and all > this information needs to be available via SNMP and web. Am I asking for > too much or does something of this nature exist outside of TrippLite and > APC? > > > > -- > > Christopher Tyler > > MTCRE/MTCNA/MTCTCE/MTCWE > > Total Highspeed Internet Services > > 417.851.1107 > > >
