Required Tools And Equipment - Cisco Nexus 7000 Hardware Installation And Reference Manual

Chapter 6 Installing Power Supplies

Required Tools and Equipment

To install a power interface unit, you need the following tools and materials:
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Installing the PIU in a Rack
To install a PIU in a rack, follow these steps:
Position and fasten the two mounting brackets in one of four ways shown in
Step 1
OL-23069-07
PIU (part number N7K-DC-PIU=).
Mounting brackets (2)
–
M6 x 19 mm or four 12-24 x 3/4" Phillips screws (4)
–
– Grounding lug (standard two-holed barrel lug that supports up to 6 AWG wire)
– M6 nuts (2)
Standard lugs (8 required for each 3-kW DC power supply connected to the PIU)
Grounding wire
Size this wire to meet local and national installation requirements. For U.S. installations, you
must provide a 6 AWG copper conductor. For installations outside the U.S., consult your local
and national electrical codes. The length of the grounding wire depends on the proximity of the
switch to proper grounding facilities. You must supply this wire.
Wire-stripping tool
Number 1 Phillips-head screwdriver with torque capability
Crimping tool
Power cables
– Each 3-kW DC power supply requires that you provide four 6-AWG cables for up to 45 A
current.
– Each 6-kW DC power supply comes with a 15-foot (4.6 m) cable with one plug on one end and
four wires terminated with lugs.
Power cables that connect the PIU to the power source. You must size these cables to meet local and
national electrical codes.
Connecting a DC Power Supply to DC Power Sources
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
Figure 6-12.
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