
4
2. Description of Commonly Used Symbols
Some or all of the following symbols may be used in this manual. It is advisable to
familiarize yourself with them and understand their meaning:
3. Introduction
This On-Line series is an uninterruptible power supply incorporating
double-converter technology. It provides perfect protection specifically for computer
equipments, communication servers, and data centers.
The double-converter principle eliminates all mains power disturbances. A rectifier
converts the alternating current from the mains power to direct current. On the
basis of this DC voltage, the inverter generates an AC sinusoidal voltage, which
constantly supplies the loads. In the event of power failure, the maintenance-free
batteries power the inverter.
This manual covers the UPS listed as follows.
Mode NO.
Type
OLS6000ERT6U(M)
Standard
OLS6000ERT6U(M)
Symbol and Explanation
Symbol
Explanation
Symbol
Explanation
Alert you to pay
special attention
Caution of high
voltage
Alternating current
source(AC)
Direct current
source(DC)
Turn on or turn off
the UPS
Protective
ground
Recycle
Do not dispose
with ordinary
trash