IBM 3454-FCE Customer Install Manual page 40

Figure 16. Aligning the PDU with the opening in the side of the rack, seen from
the rear of the rack. (PDU picture for reference only, receptacle style may vary)
Attention You must ensure that the main input power is disconnected from the
power source (wall) before you connect or disconnect the input power cord from
the PDU model.
5. Disengage the PDU circuit breakers by pulling the six PDU circuit pins away from
the PDU chassis (receptacle side, Figure 17) then connect the power cord to the
PDU.
Align the connector on the power cord (A) that was provided with the PDU model
with the connector on the front of the unit (A), turning as necessary for key
alignment. Then, turn the connector twist-lock (B) clockwise until it locks into
place.
© Copyright IBM Corporation 2020. Customer Install Guide, PDU 40