Not able to configure Native serial shutdown on Microsoft Vista on up.
Native serial shutdown
Microsoft Windows Vista, Windows 7, Windows 8, Windows server 2008, 2010, 2012, 2016
Microsoft has removed the serial UPS support from its operating systems. In order to communicate and shut it down based on events from an APC UPS via serial comm such as "On Battery" or "Low Battery", PowerChute Business Edition must be installed.
Use PowerChute software or USB to serial converter.