Preface
11
QDSP-207B User’s Manual
dollars, with the more expensive unit s allowing you to run larger systems for a
longer period of time when AC power is lost. UPS systems that provide only 5
minutes of battery power let you conduct an orderly shutdown of the system,
but are not intended to provide continued operation. Surge protectors should be
used with all UPS systems, and the UPS system should be Underwriters
Laboratories (UL) safety approved.
