Unfortunately, there are two APC900 models - old and new. The new models need no. 164, the old ones need no. 123. Unfortunately, I ordered no. 123 first and then had to send the battery back. Tip: simply remove the old battery and compare the photo. If it is split in two, it will be no. 123. If it is a single large block, it is no. 164 (just look at the photos at Galaxus).
Thank you very much for letting us know. We will be happy to pass this on internally to the responsible department and hope that this will be checked promptly. Actually, something like this should not happen.
Yes, it will work just fine. The limiting factor will be the 390W total output capability of the UPS. The multi socket of your choice will handle 10A which corresponds to 2'300W.
Greetings
Hello, I have not measured it, but the UPS has an efficiency of 97.4% in no-load operation. At 540 watts, this makes a loss of approx. 14.04 watts. However, since the UPS should be max. 70% loaded, this makes approx. 9.8 watts.
Unfortunately, the product manager was unable to provide any information on this matter, so we can only ask you to contact the manufacturer directly. We are sorry about this: https://www.apc.com/hr/en/support/contact-us/
This inverter does not appear to be listed as compatible with the DS920+ according to the manufacturer's official list: https://www.synology.com/fr-fr/compatibility?search_by=products&model=DS920%2B&category=upses&p=1&change_log_p=1
Question 1: I have no idea. I have my NAS connected to the mains cable to shut it down automatically (happens automatically between the devices).
To question 2: Yes, they are indeed very easy to replace. They are not connected when delivered and have to be connected first. Provided you can get a plug into a socket, the connection should be successful.
In my knowledge, the UPS has a USB interface for Power Management by one device, like a server or NAS. I am joy sure you can use the SNMP protocol over USB
Hi Marvin, there is a fan inside, but it is quieter than my NAS. However, switching to battery is clearly audible (several times a day for me). The behaviour of the display cannot be influenced, not even by APC software ... but it switches off automatically. Unfortunately, the shutdown only works via USB. The network connections cannot be used in this way. I have connected the UPS to the NAS via USB and shut down my WIN server from WinNUT. MfG digimouse
I assume you are looking for something like this:
Diggelmann SPBL C14/T13 (0.30 m)
Diggelmann Extension Cable 1.5 m T13 - C14 Black (1.50 m)
Online UPS (5 x, T13, 2 m)
Please forgive me for the occurrence. From today's perspective, I cannot clearly understand the circumstances, but I assume that there was a short-term price error. We communicate the complete price development transparently in the corresponding section.
Hi, I have a UPS like this. Yes, the connections are designed with 4 SCHUKO sockets as in picture 20. Unfortunately, this model is not available in a Swiss version. The APC devices have been the most stable for me so far and it is even possible to replace the battery after a few years. Other devices from other brands in this price segment are sometimes no longer functional even after the warranty period. I have been using this version for about 6 months now and have not yet had any faults, but it has also bridged a few outages well.
The answer is a bit like the joke from "Radio Yerevan" in the 80s. "In principle yes, but.....". Let me put it this way: this device is network-compatible, but not standalone. I.e. it is connected via a USB-to-Smart bridge with a proprietary protocol (Schneider Electrics). In the past they had switched to open source compatibility, now it's just proprietary. So let's assume that the device you are operating and is connected to the UPS with USB-A to Eth (Smart) has the Windows OS. Then you can set this up with the proprietary software from Schneider Electric, the documentation can be found at: https://www.se.com/it/it/product/BR900MI/back-ups-pro-br-900va-6-uscite-avr-interfaccia-lcd/
Then you can also download the software and see if it runs, this also works without a group, but to see if the installation goes well: https://www.se.com/it/it/download/doc-group-type/120246296111-Software+e+firmware/?sortByField=Popularity&keyword=Back+UPS+Pro+900
The software you need to look for is: Power Chute Personal Edition 3.1.0 for Windows.
Otherwise I have to warn you. I use the group for a NAS (Truenas Scale) and a second one for a Linux computer under Tumbleweed Opensuse and despite a lot of reading and trying I have not succeeded in accessing the device, the reversed engeneered interface, which was quite capable of doing so under Linux, no longer works (because the protocol is no longer released, consequently NUT https://networkupstools.org/ for Linux is not executable with the part, at least I did not succeed. Locally it works very well and it worked well before. But you will only receive an email and SMS if the device using the UPS is running Windows and Scheider's software. (They have probably been bought in some way).
If you want to use open software or if you want the UPS group to be able to communicate independently, I advise you to use Chinese brands with simple LAN technology (like Blue Walker or similar) because Ethernet never lies. Or you have to dig deeper into your pockets to have a mini operating system standalone on board that can send an email. Because the price range you are looking at does not normally have this standalone functionality. I hope this helps you. The link to the manufacturer will take you to the manual, which I would read very carefully.
Please note: all information is based on personal experience, no guarantee or assurance of correctness, completeness or other responsibility is given or assumed, you alone are responsible for your purchase decision. Good luck!
P.S. Reliability: it's really very good. They run quietly, don't stink and the battery is easy to replace. The automated self-tests are also good and programmable.
This will probably not be enough. Because if your PC is running at full load, it will "say" more than 540W. It would be helpful to know which power supply you have, the UPS should have the same maximum output as your power supply (otherwise the power supply can only draw as much power as the UPS delivers). The graphics card and CPU alone draw more than 540W under full load (according to digitec, up to approx. 700W and this does not include fans and other components). It also plays a role what your goal of the UPS is, should the operation be ensured in the event of a short power failure, or should the UPS also last longer? Then it is no longer the maximum output power but the capacity of the battery that is decisive.
I finally bought this APC Back UPS Pro RS900MI for my two Synology 918+ and 920+ servers. Each server uses about 5% of the UPS capacity, so 10% of the total load for both servers, which gives me about 50 minutes of autonomy in case of an outage. This is much more than I expected, so great. The 918+ is connected to the UPS via USB and the 920+ to the 918+. The setup works great but my only challenge is that I would like the two servers to be independent. Is SNMP available on this UPS (APC Back UPS Pro RS900MI) or do I need to add an interface?
Hoi - you can prioritise subjectively (my 8k screen is more important to me than my PC) or by price of purchase (my xykCHF PC is more important to me than my 2.7k screen for xxx CHF) - or by: how fast or difficult will it be to find a replacement for device Z if the worst comes to the worst (e.g. if the insurance, if you have one for something like that, hasn't paid out yet) ...
I have e.g. my 3 NAS and the firewall (yes, it's a more abnormal one with many cores and lots of RAM and many interfaces) on the UPS ports, 2 TFT, 2 docking stations, 2 pairs of active speakers on the Surge ports... According to the motto: I can't work without data, restore took a relatively long time, notebook and data are important to me... Find the points that are important to you, then you can rank them.
Hope this helps and Lg
