Cisco Nexus 9372PX Hardware Installation Manual page 48

Installing a DC Power Supply
Statement 1024—Ground Conductor
Warning
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority
or an electrician if you are uncertain that suitable grounding is available.
Before You Begin
You must turn off the circuit breaker for the DC power cables that you are connecting to prevent electrocution.
Step 1 Verify that the circuit breaker for the DC power source you are connecting is turned off.
Step 2
Remove the DC power connector block from the power supply by doing the following:
a) Push the orange plastic button on the top of the connector block inward toward the power supply.
b) Pull the connector block out of the power supply.
Step 3 Strip 0.6 inches (15 mm) of insulation off the DC wires that you are using.
Step 4 Orient the connector as shown in the following figure with the orange plastic button on top.
Figure 9: Wiring a 930W -48VDC Power Supply Connector Block
1 Wire retainer lever
2 Orange plastic button on top of the connector
3 -48V Return (+DC) cable
Cisco Nexus 9372PX and 9372PX-E NX-OS-Mode Switches Hardware Installation Guide
38
4 -48V (-DC) cable
5 Grounding cable (8 AWG recommended)
Replacing Components