Linux Operating Systems and UPS's

I am thinking about building an UTM (Unified Threat Management) PC to replace my Cable/DSL Router. If I do build an UTM PC, I would include an UPS to keep the UTM PC online during short duration power outages.

I see that UPS's include a USB connection for the PC. Is this USB connection useless when using a Linux based UTM Operating System? What happens if the power outage is long enough to deplete the UPS's battery?

Thanks in Advance.

 

Ubuntu uses UPSMON which can shut down the system when the power goes out.

 

I did not think to read the manual for the UTM OS. The manual says that only APC and MGE UPS Systems are supported.

 

i use microtek UPS there are other i dont after power fail they give backup for longer backups check UPS with good battery backup i use only for shutting down PC 20 min backup