Increase productivity and your Bottom-line! SLI UPS Series ( uninterruptible power supply ) act as a defensive barrier between your equipment and corrupted power, thereby eliminating premature hardware failure,data loss and error, storage loss and system/keyboard lockup. All SLI Series units incorporate load segment capabilities (separate receptacle groups) which enable scheduled shutdowns and load shedding as well as maximum run time for each critical device. To preserve battery power for more critical equipment connected to the UPS, shut down and power up load segments are user-defined. Feature rich communications and UPS power management software provide extensive control and monitoring.