Dell EMC Unity All Flash Installation And Service Manual page 32

Figure 26. Connecting power cables to the 2U, 25-drive DAE
3. Secure each power cable to the power supply with the cable retention bail.
4. Connect the power to the each DAE as follows:
a. Connect the power cable for LCC A to PDU A.
b. Connect the power cable for LCC B to PDU B.
The enclosures power up immediately once the cable is connected.
5. Bundle and secure the cables as necessary with tie wraps.
32 Installation Procedures