SINLINE RT XL is the newest series of functionally advanced UPS units, where the active output power can reach the value of apparent power. These units are designed for computer servers, small computer networks, workstations, and other electrical, electronic, and IT systems. Additionally, they feature LAN (1 Gbit/s) filters and manageable outputs, can be extended by an additional battery module, and their batteries can be replaced by the user. The LCD display grants the user complete control over the UPS.

Thanks to the optional RS232/RS485 RS communication interface with MODBUS protocol and a zero voltage outputs and control inputs card, the UPS unit can be integrated with automatic systems. The universal rack/tower housing allows for quick changes in UPS orientation.

In battery operation mode, the Clear Digital Sinus (CDS) system used in this series of UPS units generates a sinusoidal waveform at output. AVR, a built-in system for regulating (increasing and decreasing) the mains voltage, adjusts incorrect input voltage to a level that is acceptable to the receivers without using battery power. The unit's battery charging system with thermal compensation additionally protects the built-in batteries and prolongs their life.

The units feature an extensive communication system that uses an integrated network management card (for SNMPv2 and HTTP protocols) and HID USB, a communication interface for linking the UPS with other devices without the necessity to install software. The series also has a cold start function, which allows the connected device to be started from the battery while the UPS is not connected to the mains. Optionally, the unit can feature an Emergency Power Off (EPO) function.