IBM AA-RWF3A-TE Attaching the inner rails to the 4/8 or 4/16 SAN Switch, Plenum, to the rails

8.If you are installing the 4/8, 4/16 or 4/32B SAN Switch, verify that a plenum (an air duct that attaches to the switch rails, enabling the switch to draw cooler air into the switch from outside the rack, rather than drawing in heated air from within the rack.) is preinstalled, as shown in Figure 15.

If not installed, see Installing the Plenum (if required), page 49 to install a plenum on the 4/8, 4/16 or 4/32B SAN Switch.

If not installing one of the devices listed in step 8, go to Securing the switch to the outer rails, page 50 to complete the rack mount procedure.

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Figure 15 Attaching the inner rails to the 4/8 or 4/16 SAN Switch

1. Plenum	2. SAN Switch
3. Two screws for attaching the plenum
to the rails

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Figure 16 Attaching the inner rails to the 4/32 or 4/64 SAN Switch

48 Installing and configuring SAN Switches