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7
Tag and disconnect all plugs, wires, and cables to the backplane.
Note 1: Leave the network cards in the card cage. You will relocate them
to the CP card cage later in the upgrade procedure.
Note 2: Two people are needed to remove the Core card cage because
of the weight of the card cage with the cards left installed.
8
Use a 1/4" nut driver to remove the two mounting screws at the bottom
rear of the card cage. The screws secure the card cage to the module
casting. Keep the screws for use with the CP card cage.
CAUTION — Service Interruption
Do not drop the mounting screws into the pedestal.
Doing so can cause serious damage.
9
Remove the front trim panels on both sides of the card cage.
10 Remove the three mounting screws that secure the front of the card cage
to the bottom of the module. Keep the screws for use with the CP card
cage.
11 Pull the card cage forward until it is halfway out of the module.
12 Disconnect cables, plugs, and wires from the rear of the module to the
backplane.
13 Remove the logic return (LTRN) (orange) wire from the backplane bolt.
Be careful; do not drop the nut or lock washer into the pedestal. See
Figure 18 for DC power connectors. See Figure 19 on
power connectors.
14 Remove the frame ground (FGND) (green) wire from the frame ground
bolt on the module.
15 Label and disconnect the module power connectors. In an AC-powered
system, these are small orange connectors plugged into the module
power distribution unit (MPDU). In a DC-powered system, these are
connected to each other.
16 Label and disconnect the system monitor ribbon cables to J1 and J2.
17 Remove the Core card cage from the module.
Performing the upgrade
61C to CS 1000M SG CP PIV Upgrade
Page 109 of 212
page 70
for AC
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