The Online Series is designed for those applications requiring maximum power protection. With its double conversion design and Zero transfer time, it provides clean and seamless Pure Sinewave power to the critical loads. The front LED panel displays all major UPS power information, which significantly increases manageability and ease of control. The Online Series offers three choices for communication including RS232, RS232-USB, or SNMP/AS400 card. Extended runtime (XL) battery packs can also be added to these units, to boost run-times in the event of a power outage. The input and output EMI filters increase the immunity of the load to disturbances and surges, even in bypass. The Online Series also incorporates microprocessor-based full digital control, and include PowerPanel® Business Edition, which gives the user powerful control over power management options. The OL2000RMXL2U comes with six (6) 12V/7Ah batteries (72V), and five (5) power receptacles (4 x NEMA 5-20R, 1 x NEMA L5-20R). Its advanced and smart power management make the Online Series the ideal power solution for protecting network, servers, telecommunications systems, data storage facilities, as well as industrial applications. * Pure Sinewave ¿ The UPS generates energy that is identical to or cleaner than the utility company¿s power grid. Benefits include: low total harmonic distortion, minimal electrical noise, optimal line clarity. * Extended Runtime (XL) Battery Expansion - The XL battery expansion port allows for the addition of multiple battery packs to increase back-up time. * LED Front Panel ¿ Immediate vital system information: load capacity, battery capacity, fault status, and bypass status. * PowerPanel® Business Edition * 3-year Warranty