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 <[email protected]> > 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 >
