ULTRIX-MODX-IO User Guide (v1.0) Installing the ULTRIX-MODX-IO • 19
It is recommended to install the ULTRIX-MODX-IO in a slot that does not impede access to the
neighboring blade connectors.
Removing a Blank Plate from the ULTRIX-FR12 Chassis
If you are not replacing an existing blade, you will need to first remove the blank plate from the
required slot. You will need a #1 Phillips screwdriver to disengage the captive screw.
To remove the blank plate from the ULTRX-FR12 chassis
1. Power down the router and disconnect it from mains power.
2. Disengage the captive retaining screws on either end of the blank plate In Figure 7, the user is
removing the blank plate in slot 16.
Figure 7 ULTRIX-FR12 Rear Panel — Retaining Screw Locations on a Blank Plate
3. Remove the blank plate from the chassis and set it aside.
Removing a Blade from the ULTRIX-FR12 Chassis
If you are replacing an I/O Blade, you must first remove the old blade from the chassis before
installing the new blade.There are two screws and one bolt that affix the blade to the chassis: a
screw on each end of the blade and then a Middle Retaining Bolt. You must disengage all three
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