Installation manual

Installing DC Power Entry Modules | 37
Step Task (continued)
4 Slide the PEM into slot 0 or 7 (see (Figure 8-2) . If you are installing redundant PEMs, install in both slots 0 and 7.
NOTE: Fill all empty slots with blank panels.
Figure 8-2. Insert 2 DC PEMs in Slots 0 and 7
5 Secure the PEM in place by tightening the retaining latch on each module so that the arrow points down
(Figure 8-2) .
6 Secure the chassis ground connection:
WARNING: You must complete the ground connection before proceeding with any other PEM
connection.
a Locate the chassis ground connector stud on the PEM front panel (see Figure 8-3 ). It is the single stud below
the safety cover.
b Remove the nut and washer from the ground stud.
c Apply a coat of anti-oxidant paste to the connector stud, if required.
d Install the grounding cable. This cable is typically green or green and yellow.
NOTE: Termination points require UL-listed 1-hole lug with a 1/4-inch hole.
e Replace the washer and nut on the stud.
f Secure the nut with a nut driver or torque wrench (not to exceed 4 ft/lbs).
g Connect the opposite end of the grounding cable to the appropriate nearest grounding.
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