Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP) Guida All'Installazione

Pull the handles and slide the fan-tray assembly one half inch (12.7 mm) out of the shelf assembly and 
wait until the fans stop. 

When the fans have stopped, pull the fan-tray assembly completely out of the shelf assembly. 

If you are replacing the fan-tray air filter and it is installed beneath the fan-tray assembly, slide the 
existing air filter out of the shelf assembly and replace it before replacing the fan-tray assembly.

If you are replacing the fan-tray air filter and it is installed in the external bottom bracket, you can slide 
the existing air filter out of the bracket and replace it at anytime. 

Slide the new fan tray into the shelf assembly until the electrical plug at the rear of the tray plugs into 
the corresponding receptacle on the backplane.

To verify that the tray has plugged into the backplane, check that the LCD on the front of the fan tray is 
activated.

If you replace the door, be sure to reattach the ground strap.

For information on obtaining documentation, submitting a service request, and gathering additional 
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and 
revised Cisco technical documentation, at:

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This document is to be used in conjunction with the documents listed in the 

 section.