Cisco ONS 15454 Hardware Installation Manual page 71

Installing the ONS 15454 M12 (ANSI and ETSI) Shelf
DLP-G680 Mount Multiple ONS 15454 Shelf Assemblies in a Rack
Figure 15: Three-Shelf ONS 15454 ETSI (ONS 15454 SDH) Bay Assembly
Step 3 (ETSI only) Mount the air ramp above the ONS 15454 ETSI according to the DLP-G8 Install the Air Ramp,
on page 42.
The air ramp is needed if you install more than one ONS 15454 ETSI shelf in a rack. To ensure that the air
ramp is secure, use one or two M6 mounting screws for each side of the shelf. The following figure shows
how to mount an air ramp in the rack.
Cisco ONS 15454 Hardware Installation Guide
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