Online double conversion ups topology. Generator compatible. Zero transfer time. Extended battery module auto-detection. Critical non-critical load outlets. Phone fax modem dsl network protection. Variable speed fans. Powerpanel management software. Rack tower convertible configurations. Eco mode. Overload protection. Smart battery management sbm . Surge and spike protection. Emi and rfi filtration. Color lcd panel. Emergency power off epo port. Snmp http remote management capability optional . Cyberpower ols1500ert2ua is a high-performance ups featuring online double-conversion topology, which provides seamless pure sine wave power for mission-critical devices such as nas and servers, dvrs surveillance systems, transportation and infrastructure, and emergency systems. It’s typically integrated in the back office, server room, and data center environment.. The ups features color lcd panel for users to monitor power system and configure settings easily, and relay-type dry contact to perform local management. This model is designed with extended battery module auto-detection, which can automatically detect the quantity of connected extended battery modules ebm to estimate ups's runtime. The variable speed fans provide automatic thermal management based on power load to reduce noise and provide greater comfort for users.. Features. Audible alarm modes. Alarm when on battery, battery replacement, fault, low battery alarm, overload alarm. Audible alarm s . Yes. Power protectio...