Chapter 3: Initial Installation and Configuration38 One device is connected to another device via two cascading cables -USB and Ethernet cables.Power-Sharing Restrictions and Connection (for iX7™ Only)Two iX7 ™ devices can share power supply to their controllers viaEXPANSION ports, so that when either iX7™ controller fails to receive DC12V power from its inlet(s), it continues to receive backup power fromanother iX7™ device which functions properly and therefore remains to beaccessible to users.For documentation purpose, the term "power-sharing mode" is usedto describe the status when the 12V power supply from the inlet toan iX7 ™ controller fails, causing that controller to receive power fromanother iX7 ™ device.Before making a power-sharing connection, first readPower-SharingConfigurations and Restrictions (on page 40), and remove unsupportedequipment from BOTH iX7™ PDUs.After a PDU enters the power-sharing mode, some of its data/operationsremain to be available while other data/operations are no longeravailable.Unavailable data or operations on the PDU that enters thepower-sharing mode: All outlets lose power, and enter the "disabled" state. No outlet switching can be performed if the iX7™ is anoutlet-switching capable PDU.
