DOWER TECHNOLOGY IE Entrust LCD Series 550-1500VA Line Interactive AVR Compact Tower UPS ‘The Minuteman Entrust LCD Series UPS provides users all the features usually available in: higher-priced UPS products to protect your valuable equipment: automatic voltage regulation; spike and surge protection, and battery backup, all in a surprisingly compact package. Entrust LCD units feature eight to ten total cuties to ensure that all devices in your system can be.