Cisco NCS55A1 Hardware Installation Manual page 41

Install the Chassis
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Figure 20: Connecting DC Power – NC55-2KW-DC
Ensure that the locking mechanism has engaged to secure the cable.
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Figure 21: Connecting DC Power – NCS-950W-DCFW
Secure the terminal by using the screws on the left and right of the connector.
Connect DC Power to the Chassis - NCS-950W-DCFW and NC55-2KW-DC
Hardware Installation Guide for Cisco NCS 5500 Series Fixed-Port Routers
33