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Installing devices on the rack-mounting flanges
When you install optional devices in the rack, secure the device or the rails for that
device on rack-mounting flanges. Some devices come with threaded holes on the
rail-mounting flange. Other devices require that you use cage nuts to install them in
the rack.
Installing threaded rails
You must install devices that have threaded holes or device rails that have threaded
holes on the rail-mounting flange on the inside of the rack-mounting flanges. See
the device documentation for detailed information about how to use threaded rails.
Installing cage nuts
You must use cage nuts for all optional devices that do not have threaded holes.
The rack comes with a supply of cage nuts, and devices that require them come
with cage nuts. Cage nuts are installed on the inside of the rack-mounting flanges
with either the cage-nut-insertion tool or a flat-blade screwdriver. The
cage-nut-insertion tool comes with the rack and some optional devices.
Using the cage-nut-insertion tool
Complete the following steps to install a cage nut with the cage-nut-insertion tool.
Rack mounting
Figure 17. Installing cage nuts with the cage-nut-insertion tool
1. Determine the hole in which you want to install the cage nut.
2. From the inside of the rack mounting flange, insert one edge of the cage nut
3. Push the tool through the hole and hook the other edge of the cage nut.
4. Pull the tool and the cage nut back through the hole to complete the installation
Using a flat-blade screwdriver
Complete the following steps to install a cage nut with a flat-blade screwdriver.
20
IBM S2 25U Standard Rack and IBM S2 42U Standard and Expansion Racks: Installation Guide
Cage nut
flange
into the hole.
of the cage nut.
Cage-nut-insertion tool
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