Cisco ONS 15454 Hardware Installation Manual page 321

Installing the ONS 15454 M6 Shelf
Figure 193: 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.
b) Install the wing head screws from the internal side of the horizontal plenum as shown in the following
figure.
c) Tighten the screws to a torque value of 11.5 in-lb (1.3 N-m).
Figure 194: Installing the left vertical air plenum
Step 6 Install the vertical air plenum to the right of the horizontal air plenum. Follow step 5a to step 5c.
DLP-G769 Install Air Plenum for ONS 15454 M6 Shelf in ETSI Configuration
Cisco ONS 15454 Hardware Installation Guide
291