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Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03
Chapter 6 Maintaining the Router
Removing and Installing the Chassis

Disconnecting Line Card Interface Cables

Disconnect the line card network interface cables from each line card as instructed
in the “Removing an RP or Line Card” section on page 6-48.
After you disconnect the cables and the line card cable-management bracket from
each card, carefully pull the cable bundles out of the way until the cables can be
reinstalled on the replacement chassis and reconnected to the line card.

Disconnecting Alarm Card Cables

If there are external alarm device cables connected to the external alarm device
connectors on the alarm cards, you must disconnect those cables from the alarm
cards as instructed in the “Removing an Alarm Card” section on page 6-66.
After you disconnect the cable from each alarm card, carefully pull the cables out
of the way until the cables can be reconnected to the alarm cards in the
replacement chassis.
Transferring System Components
The following system components must be transferred between the old and the
new chassis:
• RP and line cards
• CSCs, SFCs, and alarm cards
• Power modules (either AC-input power supplies or DC-input PEMs)
• PDU
• Blower module
Transferring these components is discussed below.
Next, the chassis is removed, as explained on page 6-74. Then, the replacement
chassis is installed, as explained on page 6-75. Finally, the components that were
removed are reconnected, as discussed beginning on page 6-77.