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--- doc:appunti:hardware:ups_apc [2022/11/02 17:39] – [APC Back-UPS CS 500] niccolo
+++ doc:appunti:hardware:ups_apc [2022/11/02 17:49] (current) – [APC Back-UPS CS 500] niccolo
@@ Line 227: / Line 227: @@
 The two most important functions are the **#10 battery calibration** and the **#12 self-test interval**. Battery calibration must be initiated with a fully charged battery and the normal load (it should be above 10%); it will end when battery drops below about 25%.
-Unfortunately it seems that the **Back-UPS CS 500** model does not support the configuration of the **periodic self-test**, chosing option #12 results always in self-test interval **//None//**. However I asked the APC support about the self-test on model CS 500: a technician answered me in a few days, saying that that model **does a self test** on **power-on** and once **every two weeks**.
+Unfortunately it seems that the **Back-UPS CS 500** model does not support the configuration of the **periodic self-test**; chosing option #12 results always in self-test interval **//None//**. I asked the APC support about the self-test on model CS 500: a technician answered me in a few days, saying that that model does a self test on power-on and once every two weeks, but **only if it is operated by the PowerChute sofware**, which is non-free and proprietary software and it does not run on GNU/Linux. One alternative could be to create a cronjob script which stops the **apcupsd** service, run the **apctest** utility calling option #2 **Perform self-test** and then restart the apcupsd service.
 ^ New battery date (MM/DD/YYYY)  |