Install apcupsd-doc by entering the following commands in the terminal:
sudo apt update sudo apt install apcupsd-doc
Description:
APC UPS Power Management (documentation/examples)
apcupsd provides UPS power management for APC products, including most BackUPS series models (including USB), SmartUPS V/S, SmartUPS (NET/RM), and Matrix series. . This package contains the documentation and examples.
Homepage: http://www.apcupsd.org/
Version: 3.14.14-2
Section: universe/doc