Cisco ONS 15454, Hardware Installation Manual, Page: 222 / 516

Figure 116: Installing the adapter plates on the horizontal air plenum
Step 3 Place the horizontal plenum above the chassis slot in the ETSI cabinet.
Step 4
Insert the wing head screws provided with the kit, and tighten to a torque value of 11.5 in-lb (1.3 N-m).
Figure 117: Installing the horizontal air plenum in the ETSI configuration
Step 5 Install the vertical air plenum to the left of the horizontal air plenum:
a) Insert the vertical plenum in the free space between the horizontal plenum and cabinet.
Cisco ONS 15454 Hardware Installation Guide
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Installing the ONS 15454 M2 Shelf
DLP-G765 Install Air Plenum for ONS 15454 M2 Shelf in ETSI Configuration