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Cisco AC/DC Power System User Guide, R1.0
May 2006
Chapter 2 System Installation
2.6.3 Medium to Large System Upgrade
2.6.3 Medium to Large System Upgrade
To upgrade a medium system (3 rectifiers, 1 RU Distribution Shelf with 2 circuit breakers) to a large
system (4 rectifiers, 1 RU Distribution Shelf with 4 circuit breakers), use the following sections:
• 2.3.1 Install the Rectifiers, page 2-16
• 2.4 Install Circuit Breakers, page 2-18
• 2.5.2 Install 1 RU Distribution Shelf Load Connections, page 2-26
2.6.4 Small to Large System Upgrade
To upgrade a small system (2 rectifiers, no 1 RU Distribution Shelf) to a large system (4 rectifiers, 1 RU
Distribution Shelf with 4 circuit breakers), use the following sections:
• All of the steps for upgrading from the “2.6.2 Small to Medium System Upgrade” section on
page 2-28
• All of the steps for upgrading from the “2.6.3 Medium to Large System Upgrade” section on
page 2-29