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Cisco ONS 15454 Procedure Guide, Release 8.5.1
78-18537-01
Chapter 1 Install the Shelf and Backplane Cable
NTP- A7 Install the Fan-Tray Assembly
Note If you are installing the ONS 15454 in an outside plant cabinet, remove the air filter to provide maximum
cooling capabilities and to comply with Telcordia GR-487-CORE.
Note To install the fan-tray assembly, it is not necessary to move any of the cable-management facilities.
Step 1 Install the air filter. The air filter can be installed internally between the fan tray and shelf assembly, or
externally by mounting the air filter bracket on the bottom of the shelf assembly. Slide the air filter into
the bracket.
Caution Although the air filter can work with older fan trays if it is installed with either side facing up, Cisco
recommends that you install it with the metal bracing facing up to preserve the surface of the filter. You
must install the air filter with the metal bracing facing up with 15454-CC-FTA.
Step 2 Install the fan-tray assembly. The fan-tray assembly has locks on the outer edges. Press and hold the
locks as you slide the fan-tray assembly into the shelf assembly. The electrical plug at the rear of the tray
should plug into the corresponding receptacle on the assembly.
Caution Do not force a fan-tray assembly into place. This can damage the connectors on the fan-tray assembly
and/or the connectors on the back panel of the shelf assembly.
Step 3 To verify that the tray has plugged into the backplane, look at the fan tray and listen to determine that
the fans are running.
Figure 1-1 shows the location of the fan tray.
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