274 Upgrade and Maintenance Manual TX140 S1
Expansion cards and backup units
Figure 142: Removing the FBU from the FBU holder
Ê At a slight angle, slide the FBU from under the retaining brackets of the FBU
holder and remove it.
9.3.6.5 Installing a replacement FBU
Ê Install the new FBU into the FBU holder as described in section "Preparing
the FBU" on page 256.
Ê Install the FBU holder into the chassis as described in section "Installing the
FBU holder into the chassis" on page 258.
Ê Connect the FBU adapter cable to the TFM as described in section
"Connecting the FBU adapter cable to the TFM" on page 259.
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