Figure 11: Rail Clearance to PDUs
Zero U Mount PDUs
The 2420 and 4220 racks still support the Dell zero U mount PDUs that mount in the sides of the rack. For PDUs
with detachable input cables, simply mount the PDU from the side of the rack and then plug the cable in and route it
back into the rack through the opening between the rear mounting rail and the PDU tray. Plugging cables into PDUs
of this design is easiest when the user has ready access to the sides of the rack. See Figure 12.
Dell Inc. | Data Center Infrastructure