If you have a Cisco CRS 3-Phase AC PDU installed, six AC PMs are required to be installed in each LCC
AC modular configuration power shelf to maintain a balanced 3-phase power load,.
Note
We recommend that you use appropriate short-circuit protection in compliance with national and local electrical
codes.
Note
Installing and Remove Fixed Configuration Power Components
This section contains the following procedures:
• Installing a Fixed Configuration Power Shelf
• Removing a Fixed Configuration Power Shelf
• Installing Fixed Configuration AC Power Cords
• Removing Fixed Configuration AC Power Cords
• Installing Fixed Configuration DC Power Shelf Wiring
• Removing Fixed Configuration DC Power Shelf Wiring
• Installing an AC Rectifier or DC PEM
• Removing an AC rectifier or DC PEM
• Installing a Fixed Configuration Alarm Module
• Removing a Fixed Configuration Alarm Module
• Powering Up and Down a Chassis with Fixed Configuration AC Power
• Power Up and Power Down a Chassis with Fixed Configuration DC Power
• Converting from One Fixed Configuration Power System to Another
For complete information on regulatory compliance and safety, see
Cisco CRS Carrier Routing System
Regulatory Compliance and Safety Information
.
Note
Installing a Fixed Configuration Power Shelf
This section describes how to install a fixed configuration power shelf in the LCC. For information on the
differences between the power types, see
and
.
The power shelf encloses:
• The power modules: three AC rectifiers for an AC power shelf or three DC PEMs for a DC power shelf
Cisco CRS Routers 16-Slot Line Card Chassis Installation Guide
29
Installing and Removing Power Components
Installing and Remove Fixed Configuration Power Components