
Chapter 3 Power Supply Installation
Finding the Power Supply Module Serial Number
Figure 3-12  DC Source A Isolated From Source B with No Common Ground
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Figure 3-13  DC Source A and Source B Connections with Common Ground
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Step 4 Torque all terminal block screws to 11 
Step 5 Replace the terminal block safety cover.
Step 6 Move the DC power source 
Step 7 Confirm that the power supply DC OK and PS OK LEDs are green. See Table 
Finding the Power Supply Module Serial Number
If you contact Cisco Technical Assistance regarding a power supply module, you need to know the serial number. See Figure 
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 | Catalyst 3650 Switch Hardware Installation Guide | 
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