Procedure C: Obtain customer verificationPerform this procedure if the three conditions listed below are true:l The customer-supplied PDU source cables are already plugged into the EMC PDU.l You have no access to the area below the raised floor.l The customer's electrician is not available at the installation site.Procedure1. Have the customer verify that their electrician has complied with powerspecifications for voltage levels and redundancy. If the customer cannot verifythis, provide them with a copy of Procedure A. Inform the customer that theirarray may prematurely shut down in the event of a site power issue.2. Record the customer-supplied PDU information (AC source voltage) asdescribed in step 1 of Procedure A, Task 1: Customer's electrician on page 115and label the PDUs as described in PDU labels on page 126.PDU labelsBefore applying labels to the PDUs, one of the following procedures must have beencompleted:l Procedure A: Working with the customer's electrician onsite on page 114l Procedure B: Verify and connect on page 125l Procedure C: Obtain customer verification on page 126If necessary, see Selecting the proper AC power connection procedure on page 113 toselect the correct procedure.PDU label part numbersVMAX 250FTable 39 VMAX 250F label part numbersPN Description LocationPN 046-003-593 LABEL: CUSTOMER PDU INFORMATION OPEN ME FIRST KIT, PN 106-887-093VMAX 450F, VMAX 850F, VMAX 950FTable 40 VMAX 450F, VMAX 850F, VMAX 950F label part numbers, EMC racksFor... Use PN Description LocationAll bays PN 046-001-750 LABEL: CUSTOMER 1P 3P PDU INFOWRITEABLEOPEN ME FIRST, KIT, PN 106-887-026Best Practices for AC Power Connections126 Site Planning Guide VMAX 250F, VMAX 450F, VMAX 850F, VMAX 950F with HYPERMAX OS