Cisco NCS 560-4

Installing the chassis in a plenum changes the air flow direction from right-to-left of router to front-to-back
of the router.
Note
Procedure
Step 1 Refer to the figures below to assemble the plenum. Secure all screws using a torque of 11.5 in.-lb (1.3 N-m).
Cisco NCS 560-4 Router Hardware Installation Guide
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Installing the Cisco NCS 560-4 Router
Assembling the Plenum (N560-4-F2B-AIR-U=)