Replacing A Version 1 Fan Tray In The Cisco Asr 9922 Router With A Version 2 Fan Tray - Cisco ASR 9000 Series Installation Manual

Removing Components Before Installing the Chassis
The fans in the currently installed version 2 fan tray will go to full speed. The Cisco IOS XR software
will transmit a syslog message indicating that a fan tray OIR has begun.
Step 4 Insert the second version 2 fan tray as shown in
The Cisco IOS XR software will transmit a syslog message indicating that the system no longer has
mismatched fan trays.
Replacing a Version 1 Fan Tray in the Cisco ASR 9922 Router with a Version 2
Fan Tray
Cisco IOS XR software release 5.2.2 introduces support for the version 2 fan tray in the
Cisco ASR 9922 Router chassis. The version 2 fan tray allows the router to support high-power optics
that operate at 1.5 W. When at least one version 2 power tray is installed in each half of the
Cisco ASR 9922 Router, the system removes the restriction on high-power optics. If at least one version
2 fan tray is installed in FT0 or FT1, and at least one version 2 fan tray is installed in FT2 or FT3, then
high-power optics can be installed on any port on any slot.
Ensure that there are sufficient power modules installed in the chassis to power the four version 2 fan
Note
trays at full speed.
The replacement procedure should be completed as quickly as possible. Cisco does not support
Note
long-term operation of the Cisco ASR 9922 Router with a mixture of version 1 and version 2 fan trays.
Follow these steps to replace version 1 fan trays in the Cisco ASR 9922 Router with version 2 fan trays.
Remove the first version 1 fan tray as shown in
Step 1
a.
b.
c.
Use two hands when handling the fan tray. Each Cisco ASR 9922 Router version 1 fan tray weighs about
Caution
18 pounds (8.16 kg). Each Cisco ASR 9922 Router version 2 fan tray weighs about
27 pounds (12.25 kg).
At this point the fans in the remaining version 1 fan tray in that half of the chassis will go to full speed.
Note
The fans in the other half of the chassis will continue to operate normally. For example, if FT0 has been
removed from the chassis, then FT1 will go to full speed and FT2 and FT3 will continue to operate at
their normal speed.
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
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Loosen the captive screw on each side of the fan tray.
Using the handle on the front panel, pull the fan tray halfway out of the chassis.
Wait a few seconds for all the fans to stop rotating before lifting the fan tray from the chassis.
Note
Slide out the fan tray completely from the chassis while supporting it with your other hand.
Chapter 2 Unpacking and Installing the Chassis
Figure 2-14.
Figure 2-15 as follows: