Cisco Nexus 9504 Hardware Installation Manual page 40

Connecting a 3-kW DC Power Supply to a DC Power Source
Step 1 Turn off the switch and circuit breaker as follows:
a) Turn the power switch on the power supply to standby (labeled 0 on the power supply).
b) Turn off the circuit breaker for each of the two power inputs coming from the DC power source.
Statement 1003 DC Power Disconnection
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Step 2 Connect the four customer-provided power cables to the power supply and power source as follows:
a) Use a wire stripper to remove 0.75 inches (19 cm) of insulation from the end of each of four power cables.
Use colored cables to designate positive and negative polarity. You need two cables that are colored for positive
polarity and two cables that are colored for negative polarity.
b) Use a crimping tool to attach each of four lugs (provided with the switch for each power supply) to the stripped end
of each cable.
Test each crimped lug by trying to pull it off its cable.
c) Use a torque screwdriver to unscrew the three screws that are on the cover of the terminal box. the cover is located
on the front of the power supply and lifts off the cover as shown in the following figure.
Cisco Nexus 9504 ACI-Mode Switch Hardware Installation Guide
30
• Wire stripping tool
• Crimping tool
• Torque screwdriver and wrench
Installing a Chassis