D-Link ShareCenter DNS-320L User Manual page 251

Section 5 - Knowledge Base
Click Management.
Click System Management and then USB Devices.
Click the blue arrow next to UPS Settings. There are two modes
- Standalone and Master.
Select Standalone to use the UPS only on the DNS-320L or
select Master to share the UPS with the network UPS slaves.
The UPS Status screen shows the mode, manufacturer, product
type, battery charge meter, and status.
D-Link ShareCenter DNS-320L User Manual 247