CPSS (Central Power Supply System) or CBS (Central Battery Systems) as they may also be known, and UPS (Uninterruptible Power Supplies) share many of the same design and operational similarities as one another. Both systems provide backup power in the event of a mains failure or fault, both utilise modules within the battery system to meet the required power rating and both contain similar components. In this Podcast, UPS and CPSS manufacturer Borri SPA discuss how UPS systems can be modified to meet the strict EN50171 regulation set out for CPS systems.