- en.wikipedia.org/wiki/Uninterruptible_power_supply
- de.wikipedia.org/wiki/Unterbrechungsfreie_Stromversorgung
- www.apc.com/products/resource/include/techspec_index.cfm?base_sku=BE700G-GR
- www.conrad.de/ce/de/product/973577/APC-Back-UPS-BE700G-USV-700-VA – I purchased it in their Berlin-Schöneberg store [link]
- Now my Synology DS213+ (NAS) gets its power from the UPS, and the UPS also controls USB-wise, when the NAS goes to “Safe Mode“. For the USB-connected NAS, this is “local UPS support“. This Synology device is now the “Synology UPS server“, that controls, the remaining Synology DiskStations powered by the UPS.
- My Synology DS112+ (NAS) uses the DS213+ as “Synology UPS server“.
It feels well, to have your NAS-s powered by your UPS.
Update 2017-03-04: After a couple of unexplainable break-downs through the last like 6 months I have to replace the battery. How did the break-downs look like? The device attached through the USB interface got a power outage signaled, and that device sent out a message via e-mail. The first couple of times it looked like after the short power outage the USP recovered and everything was fine. (Now I actually started doubting, there was any true power outage at all.) The last couple of times the USP went down, it did not recover by itself any longer, but there was an ongoing continuous whistling. (I did not look this phenomenon up in the user manual, as I was too busy with my daily “business”. Now I know I should have done that, and I should have ordered a replacement battery then.) Now “usually” I switched the device of for like half an hour, and after that I switched it on again, and everything looked fine. This week the USP went down and had this ongoing whistling, and after the “switched off” period the restart failed after a couple of seconds and the whistling started again. I tried a couple of times, then I read the manual and learned, that the ongoing whistling meand “end of life” for the battery. Actually I never noticed the constant change between the green and the red LED – but I wasn’t able to notice that anyway.