LEGRAND Raritan PX3TS, User Manual

Page: 56 / 911

Chapter 3: Initial Installation and Configuration
36
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One device is connected to another device via two cascading cables - USB
and Ethernet cables.
Power-Sharing Restrictions and Connection
Two PX3TS devices can share power supply to their controllers via EXPANSION
ports, so that when either PX3TS controller fails to receive DC 12V power from
its inlet(s), it continues to receive backup power from another PX3TS device
which functions properly and therefore remains to be accessible to users.
For documentation purpose, the term "power-sharing mode" is used to
describe the status when the 12V power supply from the inlet to a PX3TS
controller fails, causing that controller to receive power from another PX3TS
device.
Before making a power-sharing connection, first read Power-Sharing
Configurations and Restrictions (on page 38), and remove unsupported
equipment from BOTH PX3TS PDUs.
After a PDU enters the power-sharing mode, some of its data/operations
remain to be available while other data/operations are no longer available.
Unavailable data or operations on the PDU that enters the power-sharing
mode:
•
All outlets lose power, and enter the "disabled" state.
▪
No outlet switching can be performed if the PX3TS is an
outlet-switching capable PDU.