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[rvp819]

I connected my DNS-323 (1.08b5 FW) to a UPS (CyberPower CPS425SL) [RS-232 from UPS, RS-232 to USB adapter, USB into DNS) and the DNS panel keeps giving the following warning message even though the UPS battery is at full charge and the DNS is the only item powered from the UPS:

"AC power lost and the UPS works now . Please notice that NAS will be shutdown soon.Please check unfinished works and accomplish them to make sure data will not be lost."

I guess this means the DNS doesn't like this model of UPS.

Has anyone seen this warning message with other UPSs and what did you do? Anyone else using a CyberPower CPS425SL with better results?

For now I'll simply disconnect the USB link between UPS and DNS.

[ojosch]

Try an APC Back-UPS 725VA or 750VA

I've tested with both those UPSs and they have the ability to work. Or it could be on yours, that it is trying to use the wrong driver. I had enough problems with UPS functioning on my DNS-323 that I just use Fun_Plug and first install your own version of NUT (Network UPS Tools), and in the start script, make it kill the factory processes relating to the built-in DNS's UPS tools (ie upsd, and upsdrvctl), and then I copy all of the files that NUT needs to run into the / ramdrive space, and then start the processes all from the startup script. NUT comes with upsmon as an extra component that DNS firmware does not include and so far, this is the only daemon that I have used that has been able to successfully shutdown my DNS-323 when it should go down. In the upsmon.conf file you can set parameters like what state the unit should shutdown (ie On Batt, or Low Batt, etc). I got mine working like a charm now. You might need to search around to figure out what driver your UPS needs to start. I think NUT comes with 4 drivers and when you figure yours out, you need to specify which one to load in the ups.conf file. The one my APC uses is the usbhid-ups driver. The NUT package has samples in each of the conf files so if you install the package and then first start by reading each of the conf files you will learn a lot.

Another excellent page to read is here: http://wiki.dns323.info/howto:nut_ups

I think you could get yours working if you read all that stuff. I think this is the only way you'll get it working is if you do it yourself. Good luck waiting for D-Link to fix UPS support for a while. They may eventually get around to it, but I wouldn't hold your breath. It might be awhile.

[rvp819]

Thanks for the info. I won't venture there for now, but may try it some rainy day.

[D-Link Multimedia]

Thank you for the information. It will be looked into and perhaps we can find out what the compatibility issue is with this model.