Replacing Components

Replacing a Fan Module During Operations

All fan and power supply modules must have the same airflow direction or else an error can occur with the switch overheating and shutting down. You can determine the airflow direction of a fan module by the color of the stripe on the front of the module. If the fan module has a red stripe for port-side intake airflow, the power supplies must have red coloring for the same airflow direction. To avoid over heating the switch, make sure that the fan modules are positioned this way:

  • For port-side intake airflow with red coloring, position the ports in a cold aisle.

Before you begin

Before you can replace a fan module, ensure that these conditions exist:

  • There are four functioning fan modules in the other fan slots. To replace a fan module during operations, there must be three fan modules circulating air in the chassis at all times. The other fan module is redundant and can be replaced.

  • The replacement fan module must have the same airflow direction as the other modules in the chassis.

If you must replace the fan module during operations and the above conditions are not met, leave the fan module that you need to replace in the chassis to preserve the designed airflow until you have the required module.

Procedure

Use these steps to replace the missing fan module within two minutes to avoid a shutdown.

  1. Remove the replacement fan module from its packing materials and place it on an antistatic surface.

    Hold the module by its handle and do not touch the electrical connectors on its backside. Also, to protect the electrical connectors, avoid letting them come in contact with anything other than the electrical connectors inside the chassis.

  2. Verify that you have the right fan module for the chassis. The correct fan module has one of these part numbers:

    • FAN-PI-V4 (port-side intake airflow direction and a red stripe)

    Note

     

    Be sure that the airflow direction of the new fan module matches the airflow direction of the other fan and AC power supply modules already installed in the chassis. Port-side intake airflow is indicated with red coloring. Power supplies with dual-direction airflow (airflow direction is set by the fan modules) have white coloring.

  3. Position the fan module in front of the open fan slot (be sure that the backside of the module with the electrical connectors is positioned to enter the slot first) and slide the module all the way into the chassis until its front side comes in contact with the chassis. For the last 0.2 inches (0.5 cm), carefully mount the module onto the chassis connectors by pushing more firmly, but do not force the module if it does not move further (excessive force can damage the connectors).

    Note

     

    If you are not able to push the module all the way into the slot, carefully slide the module out of the slot and check its electrical connectors for damage. If damaged, contact Cisco Technical Assistance for help. If undamaged, repeat this step to reinstall the module.

  4. Verify that the STS LED turns on and becomes green.

    If the STS LED does not turn on, slide the module out of the chassis, and visually check the electrical connectors on the back side of the chassis for damage. If damaged, contact Cisco Technical Assistance for help. If undamaged, repeat the previous step to reinstall the module.

Replacing a Power Supply Module

The switch requires two power supplies for redundancy. With one power supply providing the necessary power for operations, replace the other power supply during operations as long as the new power supply has the same airflow direction as the other modules in the chassis.

Replace a power supply with another supported power supply that has the same power source type as the other installed power supply. Additionally, the airflow direction of the power supply must match or conform to the airflow direction of the installed fan modules. For the airflow direction used by the switch, see the coloring of the fan modules.

Removing an AC Power Supply

To disconnect the power supply from its power cables, shut off the power from the power source and disconnect the connector for the power cables.

Procedure

Step 1

Remove the power cable from the power supply by pressing the tab of the Anderson Power SAF-D-Grid connector and pull the cable and connector out of the power supply.

Verify that the LEDs turn off on the power supply that you are removing.

Step 2

Grasp the power supply handle while pressing the release latch towards the power supply handle.

Step 3

Place your other hand under the power supply to support it while you slide it out of the chassis.

Caution

 

Do not touch the electrical connectors on the back side of the module. Prevent anything else from coming into contact with or damaging the connectors.

What to do next

Install an AC power supply in the open slot.

Installing an HVAC/HVDC Power Supply

You can replace one power supply while the other one provides power to the switch.


Note

For the Cisco Nexus 9364E-SG2-Q switch, HVDC power supply is not supported.


Note

If the power supply that you are replacing has a different color handle than the replacement power supply, verify that it has or will have the same airflow direction as the other modules in the switch.

Before you begin

  • If you are using n+n power redundancy, there must be a separate power source for each power supply installed in the chassis. Power sources must be of the same type—do not mix AC and DC power sources for the same switch. Otherwise, only one power source is required.

  • There must be an earth-ground connection to the chassis that you are installing the replacement module. Typically, the chassis is grounded by its metal-to-metal connection to a grounded rack. If you need to ground this chassis by another means, see Grounding the Chassis.

Procedure

Step 1

Holding the replacement power supply with one hand underneath the module and the other hand holding the handle, turn the power supply so that its release latch is on the side. Align the back end of the power supply (the end with the electrical connections) to the open power supply slot. Carefully slide the power supply all the way into the slot until it clicks into place.

Note

 

If the power supply does not fit into the open slot, turn the module over. Slide it into the open slot.

Step 2

Test the installation by trying to pull the power supply out of the slot without using the release latch.

If the power supply does not move out of place, it is secured in the slot. If the power supply moves, carefully press it all the way into the slot until it clicks into place.

Step 3

Insert the power supply cord Anderson SAF-D-Grid connector into the power supply inlet. Ensure the connector is locked. Gently tug on the cord near the connector to ensure the locking tab is engaged.

Step 4

Verify that the other end of the power cable is connected to the appropriate power source for the power supply.

Step 5

If using an HVDC power source, turn on the circuit breaker for the DC power source connected to the power supply.

Step 6

Verify that the power supply is operational by making sure that the power supply LED is green.

Installing and Removing Small-Form Pluggable Modules

Before you begin

See the Cisco Nexus 9364E-SG2-Q switch datasheet on cisco.com for a list of supported SFP and SFP+ modules. Use only supported SFP/SFP+ modules on the platform.


Warning

Statement 1008—Class 1 Laser Product

This product is a Class 1 laser product.


Note

We recommend that you wait 30 seconds between removal and insertion of an SFP on an interface module. This allows the transceiver software to initialize and synchronize with the standby RSP. Changing an SFP more quickly could result in transceiver initialization issues that disable the SFP.

  • Do not remove the dust plugs from the SFP and SFP+ modules or the rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the module ports and cables from contamination and ambient light.

  • Removing and installing an SFP and SFP+ module can shorten its useful life. Do not remove and insert any SFP/SFP+ module more often than is necessary.

  • To prevent ESD damage, follow your normal board and component handling procedures when connecting cables to the switch and other devices.

  • When you insert several SFP and SFP+ modules in multiple ports, wait for 5 seconds between inserting each SFP/SFP+. This will prevent the ports from going into error / disabled mode. Similarly, when you remove an SFP and SFP+ from a port, wait for 5 seconds before reinserting it.

SUMMARY STEPS

  1. Attach an ESD-preventive wrist strap to your wrist and to an earth ground surface.
  2. Find the send (TX) and receive (RX) markings that identify the top of the SFP/SFP+ module.
  3. If the SFP/SFP+ module has a bale-clasp latch, move it to the open, unlocked position.
  4. Align the module in front of the slot opening and push until you feel the connector snap into place.
  5. If the module has a bale-clasp latch, close it to lock the SFP/SFP+ module in place.
  6. Remove the SFP and SFP+ dust plugs and save.
  7. Connect the SFP and SFP+ cables.

DETAILED STEPS

  Command or Action Purpose

Step 1

Attach an ESD-preventive wrist strap to your wrist and to an earth ground surface.

Step 2

Find the send (TX) and receive (RX) markings that identify the top of the SFP/SFP+ module.

On some SFP/SFP+ modules, the send and receive (TX and RX) markings might be shown by arrows that show the direction of the connection.

Step 3

If the SFP/SFP+ module has a bale-clasp latch, move it to the open, unlocked position.

Step 4

Align the module in front of the slot opening and push until you feel the connector snap into place.

Step 5

If the module has a bale-clasp latch, close it to lock the SFP/SFP+ module in place.

Step 6

Remove the SFP and SFP+ dust plugs and save.

Step 7

Connect the SFP and SFP+ cables.

Install and Remove OSFP/QSFP Transceiver Modules

This section provides the installation, cabling, and removal instructions for the Quad Small Form-Factor Pluggable transceiver modules. Refer to the Cisco Transceiver Modules Compatibility Information for additional details on optical transceivers.

The figure shows a typical 800-Gigabit QSFP-DD optical transceiver.

Figure 1. 800-Gigabit QSFP-DD Transceiver Module

1

Pull tab

2

QSFP-DD transceiver body

3

Electrical connection to the module circuitry

Installing the Transceiver Module


Warning

Statement 1079—Hot Surface

This icon is a hot surface warning. To avoid personal injury, do not touch without proper protection.


Caution

The transceiver module is a static-sensitive device. Always use an ESD wrist strap or similar individual grounding device when handling transceiver modules or coming into contact with system modules.


Caution

Protect the transceiver ports by inserting clean dust caps (8000-QSFP-DCAP) into any ports not in use or that do not have optical modules plugged in. If optical modules are plugged in but not in use, use the dust caps that were supplied with the optical modules to protect the TX and RX surfaces of the optical module.

Clean the optic surfaces of the fiber cables before you plug them back into the optical ports of another module.

The switch ships with dust caps plugged in. We highly recommend you keep the dust caps plugged in until you are ready to plug an optic. The dust caps protect the ports from possible EMI interference and also avoid contamination due to dust collection.


Caution

To meet the EMI interference requirements, use the metal dust caps when the ports are not in use by optical modules.

Before you begin

Required Tools and Equipment

  • Wrist strap or other personal grounding device to prevent ESD occurrences

  • Antistatic mat or antistatic foam to set the transceiver on

  • Fiber-optic end-face cleaning tools and inspection equipment

Procedure

Step 1

Attach an ESD wrist strap to yourself and a properly grounded point on the chassis or the rack.

Step 2

Remove the transceiver module from its protective packaging.

Step 3

Check the label on the transceiver module body to verify that you have the correct model for your network. Do not remove the dust plug until you’re ready to attach the network interface cable. The dust plug is not shown in the images.

Step 4

Hold the transceiver by the pull-tab so that the identifier label is on the top.

Step 5

Align the transceiver module in front of the module’s transceiver socket opening and carefully slide the transceiver into the socket until the transceiver contacts the socket electrical connector.

Figure 2. Installing the QSFP Transceiver Module

Step 6

Press firmly on the front of the transceiver module with your thumb to fully seat the transceiver in the module’s transceiver socket (see figure Seating the QSFP Transceiver Module).

Figure 3. Seating the QSFP Transceiver Module

IMPORTANT: If the latch isn’t fully engaged, you might accidentally disconnect the transceiver module.

Attaching the Optical Network Cable

Before you begin

Before you remove the dust plugs and make any optical connections, use these guidelines:

  • Keep the protective dust plugs installed in the unplugged fiber-optic cable connectors and in the transceiver optical bores until you are ready to make a connection.

  • Inspect and clean the optical connector end faces just before you make any connections.

  • Grasp the optical connector only by the housing to plug or unplug a fiber-optic cable.


Note

  • The transceiver modules and fiber connectors are keyed to prevent incorrect insertion.

  • The multiple-fiber push-on (MPO) connectors on the optical transceivers support network interface cables with either physical contact (PC) or ultra-physical contact (UPC) flat polished face types. The MPO connectors on the optical transceivers do not support network interface cables with an angle-polished contact (APC) face type.

  • Inspect the MPO connector for the correct cable type, cleanliness, and any damage. For complete information on inspecting and cleaning fiber-optic connections, see the Inspection and Cleaning Procedures for Fiber-Optic Connections document.

Procedure

Step 1

Remove the dust plugs from the optical network interface cable MPO connectors and from the transceiver module optical bores. Save the dust plugs for future use.

Step 2

Attach the network interface cable MPO connectors immediately to the transceiver module.

Figure 4. Cabling a Transceiver Module

Removing the Transceiver Module


Caution
The transceiver module is a static-sensitive device. Always use an ESD wrist strap or similar individual grounding device when handling transceiver modules or coming into contact with modules.

To remove a transceiver module, use these steps:

Procedure

Step 1

Disconnect the network interface cable from the transceiver connector.

Step 2

Install the dust plug immediately into the transceiver’s optical bore.

Step 3

Grasp the pull-tab and gently pull to release the transceiver from the socket.

Figure 5. Removing the QSFP Transceiver Module

Step 4

Slide the transceiver out of the socket.

Step 5

Place the transceiver module into an antistatic bag.