3-34
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide
Chapter 3 Installing
Installing the Power Supply
Installing an AC power Supply
The following sections describe how to install an AC power supply in the Cisco ASR 920-24SZ-IM,
ASR-920-24SZ-M, ASR-920-24TZ-M Router:
• “Installing an AC Power Supply Module” section on page 3-34
• “Activating an AC Power Supply” section on page 3-48
• “Removing and Replacing an AC Power Supply” section on page 3-36
Warning
This product requires short-circuit (over current) protection, to be provided as part of the building
installation. Install only in accordance with national and local wiring regulations.
Statement 1045
Installing an AC Power Supply Module
Follow these steps to install an AC power supply module:
Step 1 Ensure that the system (earth) ground connection has been made. For ground connection installation
instructions, see the “Installing the Chassis Ground Connection” section on page 3-44.
Step 2 If necessary, remove the blank power supply filler plate from the chassis power supply bay opening, by
loosening the captive installation screws.
Step 3 Grasp the power supply handle with one hand. Place your other hand underneath the power supply, as
shown in Figure 3-24. Slide the power supply into the power supply bay. Make sure that the power
supply is fully seated in the bay.
Figure 3-24 Installing the AC Power Supply
Step 4
Tighten the captive installation screw of the power supply. The recommended maximum torque is 5.5
in.-lb (.62 N-m).
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