Cisco Systems 124778 Manual De Usuario
2-28
Cisco AC/DC Power System User Guide, R1.0
May 2006
Chapter 2 System Installation
2.6 System Upgrades
Step 8
Repeat for additional DC cabling.
2.6 System Upgrades
If the installation is an upgrade of a pre-existing system, the following sections give a list of the
procedures needed to upgrade the system:
procedures needed to upgrade the system:
•
•
•
•
Review the following sections before attempting a system upgrade:
•
•
•
Note
Some upgrade connections may require access to the rear of the system. If rear access is not available,
all rear connections are required to have a service loop that allows the 1 RU Distribution Shelf to be
pulled out (after unscrewing the cabinet/mounting screws) to allow for access. For information on
removing the 1 RU Distribution Shelf see
all rear connections are required to have a service loop that allows the 1 RU Distribution Shelf to be
pulled out (after unscrewing the cabinet/mounting screws) to allow for access. For information on
removing the 1 RU Distribution Shelf see
.
2.6.1 GMT Fuses
To add fuses to the GMT fuse block, see the
.
2.6.2 Small to Medium System Upgrade
To upgrade a small system (2 rectifiers, no 1 RU Distribution Shelf) to a medium system (3 rectifiers, 1
RU Distribution Shelf with 2 circuit breakers), use the following sections:
RU Distribution Shelf with 2 circuit breakers), use the following sections:
•
•
•
•
•
•