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BTI7801 Field-Replaceable Units (FRUs)

 

Field-replaceable units are pre-installed when the BTI7801 is delivered. This section describes how to remove and replace the FRUs on theBTI7801.

Warning

Use proper caution when working with the equipment. This chapter might not cover every possible hazardous condition.

Safety Warnings

  • This equipment is intended to be installed and serviced by qualified personnel.

  • Be familiar with the safety guidelines described in the BTI7800 Series Hardware Overview and Installation Guide.

  • Ensure the chassis is installed properly and secured onto the rack.

  • Ensure you have an unobstructed path to the chassis.

  • Avoid contact with rotating fan blades.

Electrical Warnings

Caution

Electrostatic Discharge (ESD) can damage module components, causing complete or intermittent failures. ESD can occur when a module is improperly handled.

To prevent ESD damage to a module, follow these guidelines:

  • Always wear an ESD grounding device, such as an ESD wrist strap, when handling a module.

  • Do not remove a module from its antistatic bag until installation. Store removed modules in antistatic packaging.

  • If you need to set a module down, place it back into its antistatic packaging or on a properly-grounded antistatic mat.

  • Handle the module by its edges and/or its faceplate and avoid touching any pins, leads, or solder connections on the circuit board.

Replacing the BTI7801 PEM

The BTI7801 uses the same PEM as the BTI7802. See Replacing the BTI7802 PEM for replacement instructions.

Replacing the BTI7801 FAN5

Use this procedure to replace a 1-Slot Chassis Front Cooling Module on the BTI7801 chassis.

The cooling module is hot-swappable, and can be replaced while the system is powered on and operational.

Note

Ensure that you are familiar with the safety and electrical warnings described in BTI7801 Field-Replaceable Units (FRUs).

Do not pull out the cooling module until the fan blades have stopped rotating.

Note

To ensure there is no risk of the system overheating, you should complete this task within five minutes in a 30oC (86oF) working ambient.

Tools Required

  • Number 2 Phillips screwdriver

  1. Loosen the thumbscrew holding the module in place. Use a screwdriver if necessary. Do not pull out the module until the fan blades have stopped rotating.

  2. Remove the faulty cooling module.

    Hold the module handle, and slowly slide the cooling module out.

  3. Place the cooling module in an antistatic bag or on a grounding mat.
  4. Align the replacement cooling module with the slot guides.
  5. Gently push the module until it is connected to the backplane.

    Once the module is in its place, the Active LED turns solid green.

  6. Tighten the thumbscrew.

You have successfully completed this procedure.

Replacing the BTI7801 ESL

Use this procedure to replace an Ethernet and Serial Link module on the BTI7801 chassis.

The ESL module is hot-swappable, and can be replaced while the system is powered on and operational.

Note

Ensure that you are familiar with the safety and electrical warnings described in BTI7801 Field-Replaceable Units (FRUs).

Tools Required

  • Number 2 Phillips screwdriver

  1. Disconnect all cables from the ESL module.
  2. Loosen the thumbscrew holding the module in place. Use a screwdriver if necessary.

  3. Remove the faulty ESL module.

    Hold the module handle, and slowly slide the ESL module out.

  4. Place the ESL module in an antistatic bag or on a grounded antistatic mat.
  5. Align the replacement ESL module with the slot guides.
  6. Gently push the module until it is connected to the backplane.
  7. Tighten the thumbscrew.
  8. Reconnect all cables.

You have successfully completed this procedure.