The Zephyr series of IPOWER is a Single Conversion Technology Uninterruptible Power Supply (UPS)
In normal operation, these feed incoming utility AC power to IT equipment. If the AC input supply falls out of predefined limits, the UPS utilizes its inverter to draw current from the battery, and also disconnects the AC input supply to prevent backfeed from the inverter to the utility. The UPS stays on battery power until the AC input returns to normal tolerances or the battery runs out of power, whichever happens first. Two of the most popular single-conversion designs are standby and line-interactive:
Backed up tranformers
Emergency backup power supply
Auto control system
Power system communication
Network communication including: data transmission, television signal transmission, etc.