Published On: July 31ˢᵗ, 2020 04:38

Cisco Catalyst 9500 Series Switches Hardware Installation Guide

Installing a Power Supply

Power Supply Overview

The switch chassis has two slots in which you can install power supplies using any of the following combinations:

  • Two AC, two DC or AC-DC power supplies

  • One AC-input power supply or one DC-input power supply (leaving the blank cover on the other slot)


Note

If you leave any power supply slots empty, you must ensure that the blank cover (Part Numbers C9K-PWR-C4-BLANK and C9K-PWR-C5-BLANK) is installed in that slot to maintain the designed airflow.


This table lists the power supply models.

Part Number Description

PWR-C4-950WAC-R

950W AC Power Supply

C9K-PWR-650WAC-R

650W AC Power Supply

C9K-PWR-1600WAC-R

1600W AC Power Supply

C9K-PWR-930WDC-R

930W DC Power Supply

C9-PWR-950WDC-R

950W DC Power Supply

C9K-PWR-1600WDC-R

1600W DC Power Supply

Figure 1. Cisco Catalyst 650W AC Input Power Supply

1

Power cord retainer

4

Release latch

2

PSU fan

5

Retainer clips

3

AC power cord connector

6

Power status and power supply failure LEDs

Figure 2. Cisco Catalyst 1600W AC Input Power Supply

1

PSU fan

4

Release latch

2

Release handle

5

Retainer clips

3

Cable tie

6

AC input connector

Figure 3. Cisco Catalyst 950W AC Input Power Supply

1

PSU LED

4

Power cord retainer

2

AC input connector

5

Release handle

3

Release latch

6

PSU fan

Figure 4. Cisco Catalyst 950W DC Input Power Supply

1

DC input connector

4

PSU LED

2

Release handle

5

Grounding terminal

3

PSU fan

6

Release latch

Figure 5. Power Supply Slot Cover

1

Release handles

The power supplies can work together in Redundant Mode, in which each power supply operates at approximately 50 percent of its capacity, no greater than 60 percent and no less than 40 percent. If one power supply fails, the other power supply can provide power for the entire system on its own. This is the default and recommended mode.

Power supply modules LED

The AC and DC power supply modules except the 1600W AC and DC power supply modules, have the following LEDs:

  • Green indicating the power status

  • Amber indicating the power supply failure

Table 1. LEDs on the AC/DC power supply modules

LED

Status

Description

Unlit

Off

No input power.

Green

Blinking

12V aux output is on; 12V main output is off.

Solid

Both 12V aux output and 12V main output are on; Power supply is functioning normally.

Amber

Blinking

Warning detected.

OR

AC power cord is not inserted properly.

Solid

Critical error detected.

The 1600W AC and DC power supply modules have a bi-color (green/amber) LED to indicate the status of the power supplies.

Table 2. LEDs on the 1600W AC/DC power supply modules

LED Status

Description

Off

No input power.

Solid amber

Critical error detected; PSU 12V main output is off.

Solid green

Both 12V aux output and 12V main output are on; Power supply is functioning normally.

1Hz blinking amber

Warning detected; PSU 12V main output is on.

2Hz blinking green

PSU 12V main output is off and 12V aux output is on.

Installation Guidelines

  • The switch chassis must be installed in a cabinet or rack that is secured to the data center.

  • Remove the power supply from its shipping container and remove any packaging.

  • You need the following additional tools and equipment:

    • Nut driver attachment for number 1 Phillips-head screwdriver or ratchet wrench with torque capability (used only for DC-input power supplies).

    • Grounding wire — Size this wire to meet local and national installation requirements. For U.S. installations, you must use an 8-14 AWG copper conductor for AC power supply systems. For installations outside the U.S., consult your local and national electrical codes. The length of the grounding wire depends on the proximity of the switch to proper grounding facilities.

  • The chassis is connected to an earth ground.

  • You have receptacles for the power sources within reach of the power supply cables.

  • If you are connecting to a DC power, check that you are using power cables to connect to the power supply. The wire size applies to the negative [-], and positive [+] cables that connect to negative and positive apertures on the connector. You have to procure the power cable.

  • If you are installing more than one DC-input power supply, each must be protected by a dedicated circuit breaker or a fuse that is sized according to the power supply input rating and the local or national electrical code requirements.

  • The power sources are rated as follows:

    • For North American AC-input installations—16A with 110V circuits.

    • For North American DC-input installations—(–48 VDC nominal at 37 A in North America (operating range: –40.5 to –56 VDC).

    • For international installations—Size the circuits by local and national standards.

  • The power supply is already inserted into the chassis.


Caution

Ensure that the power source is OFF. As an added precaution, place the appropriate safety flag and lockout devices at the source power circuit breaker, or place a piece of adhesive tape over the circuit breaker handle to prevent accidental power restoration while you are working on the circuit.



Warning

Before performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003


Installing Power Supply

Inserting the Power Supply

To insert the power supply into the chassis, follow these steps:

Procedure


Step 1

Remove the blank cover and store it for future use.

Step 2

Verify that the power supply is not connected to any power sources.

Step 3

Hold the handle on the power supply with one hand and position the power supply with its back end at the open power supply bay. See the figure for an example (AC power supply is shown as an example, DC power supply can be installed in the same way).

Step 4

Slide the unit all the way into the power supply bay until the release latch on the front of the power supply clicks and prevents you from moving the power supply in or out of the chassis.

Note 

Ensure that the power supply in inserted into the slot in the right direction. If you have inserted the power supply in the reverse direction, the amber LED on the power supply blinks continuously.

Figure 6. Installing the Power Supply


Connecting to the Power Source

Each power cable is shipped with mating connectors with one of the connectors on the power socket and the other connector on the front panel of the power supply. You follow the same steps to install the AC-input and DC-input power supplies, but you must ground them differently.

  • AC-input power supply—It is automatically grounded when you connect its power cable to the power supply and the power source.

  • DC-input power supply—You do not connect the power supply directly to the earth ground.

You use one power cord for each power supply to connect the power supply to its power source.

Connecting to an AC Power Source

To connect to a power source, follow these steps:


Warning

Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018

Procedure


Step 1

Prior to connecting the power supply to a power source, ensure that the chassis is properly grounded.

Step 2

Plug the power cable into the power supply.

Step 3

Plug the other end of the power cable into a power source supplied by the data center.

Note 
When using redundant mode, connect each power supply to a separate power source.
Step 4

Verify that the power supply is receiving power by checking that the LED is on and is amber or red. For more information about the power supply LEDs and the conditions that they indicate, see Power Supply LEDs.

When you first activate the power supply, you can verify the functionality of the LED by checking that LED turns on for a couple of seconds. If the LED is flashing amber or red, check the power connections on the power supply and the power source.


Connecting to a DC Power Source

To connect the DC power supply directly to one or two DC power sources, follow these steps:


Warning

Before performing any of the following procedures, ensure that power is removed from the DC circuit.Statement 1003

Warning

Hazardous voltage or energy may be present on DC power terminals. Always replace cover when terminals are not in service. Be sure uninsulated conductors are not accessible when cover is in place. Statement 1075.

Procedure


Step 1

Prior to connecting the power supply to a power source, ensure that the chassis is properly grounded.

Step 2

Plug the DC power cable into the DC power supply.

Step 3

Turn off the power at the circuit breakers for the portions of the DC grid power that you are connecting to and verify that all of the LEDs on the DC grid power supplies are off.

Step 4

Depending on the power supply installed, install the two cables from the DC power supply to the DC power source as follows:

  • If you are using C9K-PWR-1600WDC-R or C9K-PWR-930WDC-R, do the following:
    1. If the unconnected end of each power cable is not stripped of its insulation for the last 0.75 inches (19 mm), use wire strippers to remove that amount of insulation.

    2. Attach the negative cables to the negative terminals of a DC power source, and attach the positive cables to the positive terminals of the same power source.



      1

      Positive terminal

      2

      Negative terminal

  • If you are using PWR-C4-950WDC-R, do the following:
    1. Remove the safety cover on the terminal box on the front of the DC power supply.

      Figure 7. Remove the Safety Cover

    2. Loosen and unscrew the two nuts on the terminal box. The terminal box has two slots for power terminals. Each terminal has a nut that you use to fasten the power cable to the terminal.

      Figure 8. Removing the Nuts on the Terminal Box

    3. Secure the positive (+) DC power cable lug to the RTN terminal and the negative (–) DC power cable lug to the –48V terminal with the nuts.

      To tighten the nuts, apply torque between 7 lbf.in (0.8Nm) and 10lbf.in (1.1 Nm) to each nut.

    4. Replace the safety cover over the terminal box on the DC power supply.

Step 5

Verify that the power supply is receiving power by checking that the LED is on and is amber or red. For more information about the power supply LEDs and the conditions that they indicate, see Power Supply LEDs.

When you first activate the power supply, you can verify the functionality of the LED by checking that LED turns on for a couple of seconds. If the LED is flashing amber or red, check the power connections on the power supply and the power source.


Removing Power Supplies

Procedure


Step 1

Turn off the power to the power supply that you are removing, as follows:

If you are removing a DC-input power supply, ensure that the power is turned off at the power source by turning off the power for that circuit.

Step 2

Detach the power and ground cables, as follows:

  • For the AC-input power supply, unplug the power cables that are attached to the power supply and the power source.
  • For the DC-input power supply, remove the power cables from the power supply and the power source.
Step 3

Remove the power supply from the chassis, as follows:

  1. Press the ejector latch on the right of the power supply.

  2. Pull the power supply partially out of the slot by its handle.

  3. Pull the power supply fully from the slot.

Caution 
If you intend to operate the switch without installing another power supply in the empty slot, then you must reinstall the blank cover over the empty power supply slot to ensure proper air flow in the system and for safety reasons.

Finding the Serial Number

If you contact Cisco Technical Assistance, you need to know the serial number. These figures show where the serial number is located. You can also use the show inventory EXEC command to see the serial number.

Figure 9. Serial Number on the Power Supply

Installing a Fan Module

Fan Module Overview

Depending on the switch model, 5 individual fan modules or 2 fan trays with dual-stacked fan modules are available. In models using 5 fan modules, the switch can operate with 4 operational fans and 1 nonfunctional fan, but the failed fan should be replaced as soon as possible to avoid a service interruption due to a second fan fault.

For the switch to boot-up, ensure the following conditions are met.

  • the switches using FAN-T4-R modules must have at the minimum 4 fans operating normally

  • the switches using C9K-T1-FANTRAY modules must have 2 fan tray modules with all the fans operating normally

If the switch fails to meet the minimum number of required fans, the switch shuts down automatically to prevent the system from overheating.

Table 3. Supported Fan Modules

Part Number

Description

C9K-T1-FANTRAY

  • Supported on switches, C9500-32QC, C9500-24Y4C, and C9500-48Y4C.

  • Each switch contains two fan tray units with dual-stacked fans.

  • Functions in the event of the failure of one of the fans in the fan tray unit. The individual fans are not field replaceable, you must replace the fan unit.

FAN-T4-R

  • Supported on switches, C9500-32C, C9500-12Q, C9500-16X, C9500-24Q, and C9500-40X.

  • Each switch contains five individual fan modules operating in N+1 redundancy mode.

  • Type 4 hot-swappable fan module.

Figure 10. FAN-T4-R Fan Module

1

Fan assembly levers

3

Fan LED

2

Fan

4

Fan assembly retention latch

Figure 11. Fan Tray Unit with Dual-Stacked Fans

1

Fan LED

3

Fan assembly retention latch

2

Fan assembly levers

4

Fans

Installation Guidelines

Observe these guidelines when removing or installing a fan module:

  • Do not force the fan module into the slot. This can damage the pins on the switch if they are not aligned with the module.

  • A fan module that is only partially connected to the switch can disrupt the system operation.

  • The switch supports hot swapping of the fan module. You can remove and replace the module without interrupting normal switch operation.


Warning

Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030


Installing a Fan Module

Procedure


Step 1

Pinch the fan module release handle and slide the module out.

Caution 

You should replace the fan module within 5 minutes to avoid overheating the switch.

Step 2

Install the fan module in the fan slot, and firmly push it into the slot, applying pressure to the end of the module, not the extraction handles. When correctly inserted, the fan module is flush with the switch rear panel. When the fan is operating, a green LED is on in the top left corner of the fan.

Warning 

Do not reach into a vacant slot when installing or removing a module. Exposed circuitry is an energy hazard. Statement 206

Figure 12. Installing the Fan Module


Finding the Fan Module Serial Number

If you contact Cisco Technical Assistance regarding a fan module, you need to know the fan module serial number. See the following illustration to find the serial number.

Figure 13. Fan Module Serial Number

Installing an SSD Module

SATA SSD Module Overview

SATA SSD module is available as a field-replaceable unit (FRU). The SSD module has a button which facilitates hot-swapping of the module. To prevent data loss, press the hot-swap button to request removal and wait for the system to confirm safe-removal by turning off the status LED.

Figure 14. SATA SSD

1

Status LED

3

Blue beacon LED

2

Hot-swap button

The following table lists the SATA SSD modules supported on Cisco Catalyst 9500 Series High Performance Switches.

Table 4. SATA SSD modules

SATA SSD

Description

C9K-F1-SSD-240G

Cisco Catalyst 9500 Series 240GB SATA memory

C9K-F1-SSD-480G

Cisco Catalyst 9500 Series 480GB SATA memory

C9K-F1-SSD-960G

Cisco Catalyst 9500 Series 960GB SATA memory

Installing an SSD Module

Procedure


Step 1

Remove the blank cover on the SSD module slot on the switch and store it for future use.

Step 2

Insert the SSD module into the USB 3.0 SSD module slot, and firmly push it into the slot.



Step 3

Verify that the LED on the SSD module turns solid green.


Removing an SSD Module

Procedure


Step 1

Press and hold the hot-swap button on the SSD module for atleast four seconds.

The system powers down the SSD module and the port and the LED turns off indicating that the module is ready for removal.

Also, the switch console displays the following messages indicating safe removal.

*Mar 12 11:22:22.285: %IOSXE-3-PLATFORM: R0/0: kernel: ata1: irq_stat 0x00400040, connection status changed
*Mar 12 11:22:28.310: %IOSXE-4-PLATFORM: R0/0: kernel: ata1: limiting SATA link speed to 1.5 Gbps
*Mar 12 11:22:33.613: %IOSXE-4-PLATFORM: R0/0: kernel: ata1.00: disabled
Step 2

Remove the SSD module from the module slot and insert the blank slot cover.

If you are replacing the SSD module, insert the new module into the slot. For more information, see Installing an SSD Module.