Cisco Catalyst 9600 Series User manual

Installing the Fan Tray
•Guidelines for Removing and Installing a Fan Tray, on page 1
•Removing a Fan Tray, on page 1
•Installing a Fan Tray, on page 8
•Verifying Fan Tray Installation, on page 11
Guidelines for Removing and Installing a Fan Tray
Before removing or installing a fan tray ensure you read and follow the guidelines and safety warnings listed
here.
When removing the fan tray, keep your hands and fingers away from the spinning fan blades. Let the fan
blades completely stop before you remove the fan tray. Statement 258
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement
1030
Warning
No user-serviceable parts inside. Do not open. Statement 1073
Warning
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Warning
Removing a Fan Tray
The following sections explain the steps to remove a fan tray in a Cisco Catalyst 9600 Series switches.
Installing the Fan Tray
1

Information About Replacing a Fan Tray
Online Insertion and Removal
While the fan tray is designed to be removed and installed while the system is operating (powered on) without
presenting an electrical hazard or damage to the system, there is a time constraint when you remove and
replace the fan tray in a system that is powered on.
The system can safely run without a fan tray only for a few minutes, until the critical temperature threshold
is exceeded. Watch for any alarms triggered in software. After the critical temperature threshold is exceeded
without sufficient cooling, the system shuts down if the alarm is not cleared.
Caution
When the fan tray is removed and replaced in a non-operating system, there is no time constraint.
Following the Correct Removal and Replacement Procedure
When you order a spare, only the fan tray is shipped. The connector is not shipped with a spare and you have
to use the one originally available with the fan tray assembly.
You can remove and replace the fan tray from the front or the rear. When removed from the front of the
chassis, only the fan tray is removed. When removed from the rear, the entire fan tray assembly (including
the connector) is removed.
Removal and replacement from the front is suited to situations where access to the rear of the system is
restricted. For instance, where the installation is in a closet. Removal and replacement from the rear is suited
to situations where input and output cables are routed across the front panel, limiting access to the front panel
of the fan tray.
Follow the corresponding removal and replacement procedures.
Enabling the Service Mode Before Removing the Fan Tray
This task describes how you can enable the service mode before removing the fan tray from the chassis.
Enabling the service mode pushes the fans to operate at full speed and cool down the system sufficiently,
allowing the system to sustain temperatures for the duration of servicing.
In a system that is operational, this applies to removal or replacement procedures from the front and the rear.
You do not have to enable this mode if you are removing and replacing the fan tray in a system that is not
powered on.
Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement
1030
Warning
No user-serviceable parts inside. Do not open. Statement 1073
Warning
Starting in the privileged EXEC mode, enter the following command:
Installing the Fan Tray
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Installing the Fan Tray
Information About Replacing a Fan Tray

Device#test platform hardware chassis fantray service-mode on
fantray service mode on
The system automatically turns off the service mode after 10 minutes. This cools down the chassis sufficiently
for the service duration.
To turn off the service mode before this system-allotted duration, enter the following command:
Device#test platform hardware chassis fantray service-mode off
fantray service mode off
Removing the Fan Tray from the Front of the Chassis
Before you begin
• Read Guidelines for Removing and Installing a Fan Tray, on page 1.
• Enable the service mode on the chassis, if you are performing this task in a system that is powered on.
• Ensure that you have the following tools and accessories available:
• Phillips-head screwdriver
• Anti-static mat
Procedure
Step 1 Keep the replacement fan tray ready for installation.
When you remove and replace the fan tray in a system that is powered on, there is a time constraint.
The system can safely run without a fan tray only for 2 minutes. So it is important to complete this
first step and its sub-steps before you remove the fan tray from the front of the chassis.
Important
a) Remove the replacement fan tray from the shipping packaging.
b) Use the Phillips-head screwdriver and loosen the two captive installation screws on the front panel of the
replacement fan tray (the side with the fan STATUS LED), to detach it from the connector.
Installing the Fan Tray
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Installing the Fan Tray
Removing the Fan Tray from the Front of the Chassis

Figure 1: Detaching the Connector from the Fan Tray
Fan tray3Captive installation screws on the front of
the fan tray assembly
1
--The connector in the rear, separated from
the fan tray
2
The connector is not used or replaced when installed from the front. The connector can be scrapped or
stored for future use.
c) Place the replacement fan tray on an anti-static mat and within arm's reach.
Step 2 Proceed with removing the fan tray from the chassis. Loosen the two captive installation screws on the front
panel of the fan tray (the side with the fan STATUS LED).
Installing the Fan Tray
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Installing the Fan Tray
Removing the Fan Tray from the Front of the Chassis

Figure 2: Removing the Captive Installation Screws
Captive installation screws on the front of the fan tray assembly in the chassis1
Step 3 Grasp the fan tray handle and slide the fan tray half-way out of the bay. Gently move it from side to side, if
necessary, to unseat it from the backplane.
Step 4 Wait for the fan blades to stop spinning; place your other hand underneath to support the bottom of the fan
tray and then remove the fan tray completely.
Only the fan tray is removed from the chassis (excluding the connector).
What to do next
Set the removed fan tray aside and proceed with installing the replacement or spare fan tray.
Removing the Fan Tray from the Rear of the Chassis
When you remove the fan tray from the rear, the fan tray assembly is removed. This includes the fan tray and
the connector.
Installing the Fan Tray
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Installing the Fan Tray
Removing the Fan Tray from the Rear of the Chassis

Before you begin
• Read Guidelines for Removing and Installing a Fan Tray, on page 1.
• Enable the service mode on the chassis, if you are performing this task in a system that is powered on.
• Ensure that you have the following tools and accessories available:
• Phillips-head screwdriver
• Anti-static mat
Procedure
Step 1 Keep the replacement fan tray ready by removing it from the shipping packaging. Place it on an anti-static
mat and within arm's reach. Do not detach the connector module.
When you remove and replace the fan tray in a system that is powered on, there is a time constraint.
The system can safely run without a fan tray only for 2 minutes. So it is important to complete this
first step before you remove the fan tray from the rear of the chassis.
Important
Installing the Fan Tray
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Installing the Fan Tray
Removing the Fan Tray from the Rear of the Chassis

Figure 3: Fan Tray with the Connector
Fan tray with the connector1
Step 2 Proceed with removing the fan tray from the chassis. Loosen the two captive installation screws on the rear
panel of the fan tray.
Installing the Fan Tray
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Installing the Fan Tray
Removing the Fan Tray from the Rear of the Chassis

Figure 4: Captive Installation Screws on the Rear Panel
Captive installation screws on the rear panel.
Loosen to uninstall the fan tray
assembly from the rear.
Note
2Rear fan tray handle1
Step 3 Grasp the fan tray handle and slide the fan tray assembly half-way out of the bay.
Step 4 Wait for the fan blades to stop spinning; place your other hand underneath to support the bottom of the fan
tray and then remove the fan tray assembly completely.
What to do next
Set the removed fan tray aside and proceed with installing the replacement or spare fan tray.
Installing a Fan Tray
The following sections provide information about installing a fan tray in Cisco Catalyst 9600 Series switches.
Installing the Fan Tray
8
Installing the Fan Tray
Installing a Fan Tray

Installing the Fan Tray from the Front Panel of the Chassis
Before you begin
• Read Guidelines for Removing and Installing a Fan Tray, on page 1.
• Enable the service mode on the chassis, if you are performing this task in a system that is powered on.
• Ensure that you have the following tools and accessories available:
• Phillips-head screwdriver
• Anti-static mat
Procedure
Step 1 Hold the fan tray assembly with the fans facing to the right.
Step 2 Place the fan tray into the fan tray slot so it rests on the chassis, and then lift the fan tray up slightly, aligning
the top and bottom guides.
Figure 5: Inserting the Fan Tray from the Front of the Chassis
Fan tray without the connector2Front side of the fan tray1
Step 3 Slide the fan tray into the chassis until the two captive installation screws make contact with the chassis.
Step 4 Tighten the two captive installation screws on the front, to secure the fan tray assembly in the chassis.
Installing the Fan Tray
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Installing the Fan Tray
Installing the Fan Tray from the Front Panel of the Chassis

What to do next
Verify that you have installed the fan tray correctly. See Verifying Fan Tray Installation, on page 11.
Installing the Fan Tray from the Rear of the Chassis
Before you begin
• Read Guidelines for Removing and Installing a Fan Tray, on page 1.
• Enable the service mode on the chassis, if you are performing this task in a system that is powered on.
• Ensure that you have the following tools and accessories available:
• Phillips-head screwdriver
• Anti-static mat
Procedure
Step 1 On the replacement fan tray assembly, ensure that the two screws securing the fantray to the connector (on
the side with the fan STATUS LEDs) are tight. Be careful not to overtighten the screws.
Step 2 Hold the fan tray assembly such that the side with the STATUS LED is inserted first.
Figure 6: Inserting the Fan Tray from the Rear of the Chassis
Installing the Fan Tray
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Installing the Fan Tray
Installing the Fan Tray from the Rear of the Chassis