D-Link ShareCenter DNS-340L User Manual page 436

Section 5 - Knowledge Base
Click Management.
Click System Management>>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-340L, 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.
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