Cisco Nexus 7000 Hardware Installation And Reference Manual page 182

Connecting a DC Power Supply to DC Power Sources
If you are connecting a 6-kW DC power supply, insert the plug end of one or two power cables (Cisco
Step 5
part number N7K-DC-CAB=) to the power receptacles on the power supply and tighten its two screws
to 11 to 15 in-lb (1.2 to 1.7 N·m).
Note If the plug does not insert easily, turn it over and reinsert it.
Step 6 Attach each set of four power supply and four power source cables to the PIU as follows:
a. Remove the safety cover for a set of four PIU terminals (see Callout 1 in
Figure 6-16
1 Remove the cover.
2 Place the negative power supply cable lugs (2)
on the front negative posts. Use one color for
negative cables and another color for positive
cables.
In each of the uncovered terminal slots, unscrew and remove two nuts (remove a total of eight nuts)
b.
as shown by Callout 4 in
Attach the lugs for each of the four power supply cables to four terminals and fasten each lug with
c.
two nuts. Be sure that each negative cable is attached to a negative terminal and each positive cable
is attached to a positive terminal as marked by the PIU slots. See Callouts 2 and 3 in
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
6-28
Connecting Power Cables to a PIU
Figure 6-16.
Chapter 6
Figure
3 Place the positive power supply cable lugs (2)
on the front positive posts.
4 Fasten all four lugs with eight M6 nuts and
tighten to 40 in-lb (4.5 N·m).
Installing Power Supplies
6-16).
Figure 6-16.
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