Cisco ONS 15454 Troubleshooting Manual page 474

2.9.6 Air Filter and Fan Procedures
Remove and Reinsert a Fan-Tray Assembly
Use the retractable handles embedded in the front of the fan-tray assembly to pull it forward several
Step 1
inches.
Push the fan-tray assembly firmly back into the ONS 15454.
Step 2
Close the retractable handles.
Step 3
Replace the Fan-Tray Assembly
Caution The 15454-FTA3 fan-tray assembly can only be installed in ONS 15454 R3.1 and later shelf assemblies
(15454-SA-ANSI, P/N: 800-19857; 15454-SA-HD, P/N: 800-24848). It includes a pin that does not
allow it to be installed in ONS 15454 shelf assemblies released before ONS 15454 R3.1
(15454-SA-NEBS3E, 15454-SA-NEBS3, and 15454-SA-R1, P/N: 800-07149). Equipment damage can
result from attempting to install the 15454-FTA3 in a incompatible shelf assembly.
Do not force a fan-tray assembly into place. Doing so can damage the connectors on the fan tray and/or
Caution
the connectors on the backplane.
Always use the supplied electrostatic discharge wristband when working with a powered ONS 15454.
Caution
Plug the wristband cable into the ESD jack located on the lower-right edge of the shelf assembly.
To replace the fan-tray assembly, it is not necessary to move any of the cable management facilities.
Step 1 Open the front door of the shelf assembly by completing the following steps. If the shelf assembly does
not have a front door, continue with
a.
b.
c.
Remove the front door (optional):
Step 2
a.
b.
c.
Push the outer side of the handles on the fan-tray assembly to expose the handles.
Step 3
Fold out the retractable handles at the outside edges of the fan tray.
Step 4
Step 5 Pull the handles and slide the fan-tray assembly one inch (25.4 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.
Step 6
If you are replacing the fan-tray air filter and it is installed beneath the fan-tray assembly, slide the
Step 7
existing air filter out of the shelf assembly and replace it before replacing the fan-tray assembly.
Cisco ONS 15454 Troubleshooting Guide, R8.5
2-280
Open the front door lock.
Press the door button to release the latch.
Swing the door open.
Detach the ground strap from either the door or the chassis by removing one of the Kepnuts.
Place the Kepnut back on the stud after the ground strap is removed to avoid misplacement.
Secure the dangling end of the ground strap to the door or chassis with tape.
Step 3.
Chapter 2 Alarm Troubleshooting
November 2009