Powering Down The Cisco 12012; Removing The Power Supplies; Removing The Cards From The Upper Card Cage - Cisco GSR12/60 - 12012 Router -AnyLAN, SONET/SDH Installation And Configuration Manual

Removing and Replacing the Card Cage Assembly

Powering Down the Cisco 12012

Perform the following steps to power down the Cisco 12012:
Step 1
Step 2

Removing the Power Supplies

If your system is configured with AC-input power supplies, remove each power supply
according to the procedures in the section "Removing an AC-Input Power Supply" in this
chapter.
If your system is configured with DC-input power supplies, remove each power supply by
performing Step 1 through Step 6 of the procedure in the section "Removing a DC-Input
Power Supply" in this chapter.

Removing the Cards from the Upper Card Cage

This section provides the procedures for removing the line cards, RP, and alarm card from
the upper card cage.
Note
for use in the replacement card cage. Blank cards must be installed in slots without cards to
maintain proper air flow and for EMI considerations.
7-34 Cisco 12012 Gigabit Switch Router Installation and Configuration Guide
Turn the DC-input power supply power switch counterclockwise to the OFF (O)
position (on an AC-input power supply, turn the power switch to STANDBY) on
each power supply installed in the Cisco 12012.
Verify that the system has powered down by checking that the input OK LED on
each DC-input power supply (AC OK LED on the AC-input power supply) is off
and that the green LED on each blower module is off.
You must remove any blank cards installed in the upper card cage and retain them