Prompt UPS Sales & Services Pvt. Ltd offers RS-232 Interface enabled Line Interactive UPS. Prompt UPS Sales & Services Pvt. Ltd. Is ANAB and ISO 9001-2000 credited company. It also offers Inverters, Stabilizers and other power electronic products. RS-232 Interface enabled Line Interactive UPS is a device that "interacts" with the AC power line to smooth out the waveforms and correct the rise and fall of the voltage. The RS-232 Interface enabled Line Interactive UPS is available in 2 models viz. PUS 600VA and PUS 1000VA. The RS-232 interface enabled Line interactive UPS are used in Computer Servers, Medical Equipments, Mobile Stations etc.