Installing Power Modules
7450 ESS-7 Page 67
To install a DC PEM:
Step 1 Remove the DC PEM from the packaging.
Step 2 Make sure that the circuit breaker (ON/OFF) on the PEM is in the OFF ( O ) position.
Step 3 Align the right or left PEM with the slot guides in the appropriate left or right slot. Slide
the unit into the slot until the connectors are seated with the receptacle in the rear of the
slot.
Step 4 Secure into place by tightening the captive screws.
Step 5 Install the redundant PEM into the other DC power slot. Align the PEM with the slot
guides. Slide the unit into the slot until the connectors are seated with the receptacle in the
rear of the slot.
Step 6 Secure into place by tightening the captive screws.
Step 7 Follow the steps to prepare and connect the power cord(s). See Preparing the Power Cable
on page 68.
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