Replace Chassis Components

Replace Fan Modules for Cisco 8100 Series Routers

The fan module is designed to be removed and replaced while the system is operating without presenting an electrical hazard or damage to the system. Please keep the replacement fan modules ready prior to attempting this task.

The router supports the following types of fan modules:

Table 1. Supported Fan Modules

Router

Module Configuration (Air Flow Direction)

PID

Cisco 8102-64H-O

Port-side Intake

FAN-2RU-PI-V2

Port-side Exhaust

FAN-2RU-PE-V2

Cisco 8101-32H-O

Port-side Intake

FAN-1RU-PI-V2

Port-side Exhaust

FAN-1RU-PE-V2

Cisco 8111-32EH-O

Port-side Intake

FAN-1RU-PI-V2

Cisco 8101-32FH-O

Port-side Intake

FAN-1RU-PI-V2

Port-side Exhaust

FAN-1RU-PE-V2

Cisco 8102-28FH-DPU-O

Port-side Intake

FAN-2RU-PI-V4

Note

For Cisco 8111-32EH-O and Cisco 8102-28FH-DPU-O port-side exhaust configuration is not supported.


Note
The airflow direction must be the same for all power supply and fan modules in the chassis. Depending upon the required airflow direction, you can change the fan type. You must then also change the power supply.
Figure 1. Airflow Direction for Cisco 8102-64H-O Router
Figure 2. Airflow Direction for Cisco 8101-32H-O Router
Figure 3. Airflow Direction for Cisco 8111-32EH-O Router

Figure 4. Airflow Direction for Cisco 8102-28FH-DPU-O Router

Procedure

Step 1

To remove a fan module, follow these steps:

  1. Press two latches on the fan module and grasp the handle of fan module.

    Figure 5. Cisco 8102-64H-O Router — Remove Fans
    Figure 6. Cisco 8101-32H-O Router — Remove Fans
    Figure 7. Cisco 8111-32EH-O Router — Remove Fans

    Figure 8. Cisco 8102-28FH-DPU-O — Remove Fans

    1

    Latched fan module

  2. As you simultaneously press the latches pull the fan module fully out of the chassis.

Step 2

To install a fan module, follow these steps:

  1. Hold the fan module with the LED at the top.

  2. Align the fan module to the open fan tray slot in the chassis, and press the module all the way into the slot until the left and right latches click and are locked on the chassis.

    Note

     
    If the fan module does not go all the way into the slot, do not force it. Remove the fan module and verify that it is the correct type for your router and in the correct orientation. To verify the status of fans and the speed, use the show environment fan command.

  3. If the chassis is powered on, listen for the sound of the fans in operation. You should immediately hear them in operation. If you do not hear them, ensure that the fan module is inserted completely in the chassis.

    Note

     

    During the fan module replacement, an empty fan slot causes the remaining fans to operate at higher speeds and may reach their maximum speed. This is a short-term condition that should only occur during the replacement of a fan module.

  4. Verify that the fan module LED turns green. If the LED is not green, one or more fans are faulty. If this situation occurs, contact your customer service representative for replacement parts.

Replace Power Supply

This procedure below applies to the following power supply units (PSUs):

Table 2. PIDs for Power Supply Units

AC PID

DC PID

HVPI PID

  • PSU650W-ACPI

  • PSU650W-ACPE

  • PSU2KW-ACPI

  • UCSC-PSU1-2300W

  • PSU930W-DCPI

  • PSU930W-DCPE

  • PSU2KW-DCPI

  • PSU3KW-HVPI

Note
We recommend that you occupy both the power supply slots of the fixed port routers with power supplies. In case a power module fails, it is recommended to retain the failed power module in its slot until it is replaced with a new power module. This recommendation ensures that the system airflow is not impacted adversely, which may then result in the overheating of the router and its components. Duration to replace the PSU at ambient room temperature (23-degree C to 27-degree C) is within 5 minutes.

Note

When there are two PSUs in the router, use the following steps to replace the PSUs (AC to DC or vice-versa (or) 2KW to 3KW or vice-versa) to a different type. Routers can operate normally only with the same type of PSU in both the power slots. During replacement of PSU from one type to another, the router exhibits unexpected behaviour and the Cisco IOS XR software raises the PID mismatch alarm due to the presence of different types of PSUs. You must therefore replace the PSUs in both slots with the same type.


Note
When installing or replacing power supplies, ensure that input voltage and power supply capacity remain the same for both the power supplies. If changing to a different power supply capacity (that is, 2KW to 3KW) or input type (AC to DC), the system must be powered down, and both power supplies must be replaced while the system is still powered down.

To replace a single PSU (for example, due to PSU failure), follow the procedure below.

To replace both PSUs (for example, to change type or output of PSU), disconnect power from both PSUs and follow the procedure below.

Procedure

Step 1

Ensure that the PSUs are powered off.

Step 2

Disconnect the power cord of the PSU that must be replaced.

If you use the Saf-D-Grid power cord, then press the latch before pulling the power cord out from the power supply.

Figure 9. Latch on Saf-D-Grid Power Cord

1

Latch

Note

 

In case of an AC PSU, remove the power cord retention clamp from the AC PSU before disconnecting the AC power cord.

Figure 10. Disconnect AC Power Cable

1

Power cord retention clamp

2

AC power cable

Step 3

Press the tab inward to unlatch the PSU, and pull the handle to remove the PSU.

Note

 

On the Cisco 8101-32H-O and Cisco 8102-64H-O Router, when you remove one of the PSUs, the fan speed for the following fan modules becomes very high:

  • FAN-1RU-PE-V2

  • FAN-2RU-PE-V2

Step 4

Insert the new PSU.

  1. Grasp the PSU and insert it into the empty slot.

  2. Slide the PSU into the slot until the release lever locks.

    Note

     
    If the PSU does not go all the way into the slot, do not force it. Remove the PSU and verify that it is the correct type for your router and in the correct orientation. Ensure that the PSU is latched completely into the slot.

Step 5

Connect the power cord to the PSU. Ensure that the connector is completely fixed. If it is a Saf-D-Grid power cord, then ensure that it is latched.

Note

 

For an AC PSU that has an IEC connector (example, 2KW PSU), fix the power cord retention clamp to the power supply.

For an AC/HVDC PSU (example, 3KW PSU) that has Saf-D-Grid power cord, ensure that power cord is latched.

Step 6

Turn on the power at source.

Step 7

Wait till the PSU LED color turns green. Verify the power using the show environment power command after the router boots up.

Step 8

Repeat steps 1 through 7 to replace the PSU in the second slot.

Replace Low Voltage DC Power Supply

This procedure below applies to the following power supply units:

  • PSU930W-DCPI

  • PSU930W-DCPE

  • PSU2KW-DCPI

  • PSU3KW-HVPI


Note
When installing or replacing power supplies, ensure that input voltage and power supply capacity remain the same for both the power supplies. If changing to a different power supply capacity or input type (AC to DC), the system must be powered down, and both power supplies must be replaced while the system is still powered down.

To replace a single PSU (for example, due to PSU failure), follow the procedure below.

To replace both PSUs (for example, to change type or output of PSU), disconnect power from both PSUs and follow the procedure below.


Note
We recommend that you occupy both the power supply slots of the fixed port routers with power supplies. In case a power module fails, it is recommended to retain the failed power module in its slot until it is replaced with a new power module. This recommendation ensures that the system airflow is not impacted adversely, which may then result in the overheating of the router and its components. Duration to replace the PSU at ambient room temperature (23-degree C to 27-degree C) is within 5 minutes.

Procedure

Step 1

Disconnect the power cable of the PSU that must be replaced.

In case of PSU2KW-DCPI and PSU930W-DCPI/DCPE PSU, press the latch before pulling the power cord out from the PSU.

In case of PSU3KW-HVPI PSU, to remove the low voltage DC power cable from the PSU that has lug holes:

  1. Turn off the DC branch circuit breaker.

  2. Open the DC terminal block cover.

    Figure 11. Open the DC terminal block cover

    1

    Terminal block cover

    2

    Screws
  3. Unscrew the 2-hole lug nuts and pull the DC power cables out.
    Figure 12. Remove the DC power cables

    1

    2-hole lug nuts

    3

    		 Terminal block cover

    2

    DC power cables

    4

    Tab

Step 2

Press the tab inward to unlatch the PSUand pull the PSU.

Step 3

Insert the new PSU.

Note

 
If the PSU does not go all the way into the slot, do not force it. Remove the PSU and verify that it is the correct type for your router and in the correct orientation.

Step 4

Connect the PSU cable.

In case of PSU2KW-DCPI and PSU930W-DCPI/DCPE PSU, insert the power cord into the PSU.

In case of PSU3KW-HVPI PSU, to connect the cable to the PSU that has lug holes:

  1. Open the DC terminal block cover.

  2. Connect red DC power cables to A+ and B+ terminals and black DC power cables to A- and B- terminals.

  3. Tighten the 2-hole lug nuts to a torque value of 20 in-lb.

    Figure 13. Connect the DC power cables

    1

    2-hole lug nuts

    3

    		 Terminal block cover

    2

    DC power cables

    4

    Tab

  4. Close the DC terminal block cover. Tighten the cover screws to a torque value of 5 in-lb.

Step 5

Turn on the power at source.

Step 6

Wait till the PSU LED color turns green. Verify the power using the show environment power command after the router boots up.